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Fluid supply system

Subclass of:

347 - Incremental printing of symbolic information

347001000 - INK JET

347084000 - Fluid or fluid source handling means

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
347086000 Cartridge 549
347088000 For hot-melt fluid (e.g., phase-change) 89
347089000 With recirculation 82
Entries
DocumentTitleDate
20110199441DISCHARGE UNIT AND DISCHARGE APPARATUS - The backing pressure of an ink tank is controlled. The ink tank is connected to a pressure control apparatus. The pressure control apparatus has first and second check valves. When the internal pressure of the ink tank becomes smaller than that of outside atmosphere by a first predetermined pressure or more, the first check valve is switched into an open state to connect the outside atmosphere and the ink tank. To the contrary, when the internal pressure of the ink tank becomes larger than that of outside atmosphere by a second predetermined pressure or more, the second check valve is switched to an open state to connect the ink tank with the outside atmosphere. Therefore, the internal pressure of the ink tank is controlled precisely enough to stabilize the meniscus.08-18-2011
20100165059DISPENSER UNIT FOR REFILLING PRINTING UNIT - A dispenser unit for dispensing ink to refill a supply of printing fluid in a printing unit includes a body assembly; a plurality of ink outlets provided on a bottom side of the body assembly, the plurality of ink outlets each for engaging with respective ink inlets of the printing unit; a compressible ink storage volume provided within the body assembly, the compressible ink storage volume having a sealed end and an outlet end connected to no more than one of the plurality of ink outlets; a plunger provided within the housing and abutting the sealed end of the compressible ink storage volume; and a compressing actuator for compressing the plunger against the sealed end of the compressible ink storage volume, thereby facilitating a dispensing of ink from within the compressible ink storage volume into the printing unit via the ink outlet to which the outlet end of the compressible ink storage volume is connected.07-01-2010
20100165058Ink Refill Unit Having Discretely Incrementable Variable Storage Volume - A printing fluid refill unit for a print engine includes a reservoir having a variable storage volume for holding an amount of printing fluid, the variable storage volume having a plurality of discrete volumetric increments, each of the discrete volumetric increments having equal volumes, the reservoir further having an actuator for reducing the variable storage volume by one or more of the discrete volumetric increments; a ratchet system forming part of the actuator, the ratchet system effecting variation of the storage volume by a minimum increment of one discrete volumetric increment; an information storage element for storing information on the amount of printing fluid contained in the refill unit and for connecting with an information reader incorporated in the print engine for reading the information stored by the storage element when the refill unit is mounted to the print engine; a selector for activating the actuator to dispense a volume of the printing fluid equal to a selected multiple of the discrete volumetric increments, wherein the information stored by the storage element enables the reader to control the selector so as to derive the selected multiple of the volumetric increments; and a sensor for sensing the position of the ratchet, whereby a remaining volume of ink in the variable storage volume is determined.07-01-2010
20100091076DROPLET DISCHARGE APPARATUS - A droplet discharge apparatus includes a droplet discharge head which discharges droplets; a liquid retention unit which is configured such that a liquid surface of a liquid retained in the liquid retention unit is located below the droplet discharge head, the liquid retention unit including an atmosphere open port; a liquid channel which couples the droplet discharge head and the liquid retention unit; a liquid tank in which the liquid is retained, the liquid tank being sealed; a liquid inflow channel which couples the liquid retention unit and the liquid tank, an inflow port of the liquid inflow channel in the liquid retention unit being located below the atmosphere open port; a liquid sending channel which couples the liquid tank and the droplet discharge head; and a pump which sending the liquid in the liquid tank to the droplet discharge head.04-15-2010
20090303295INK COMPARTMENT REFILL UNIT WITH INLET VALVE ACUTATOR, OUTLET VALVE, ACTUATOR, AND CONSTRICTOR MECHANISM ACTUATOR - A refill unit for refilling an ink storage compartment that supplies ink to a printhead assembly, the ink storage compartment having an ink interface for receiving the refill unit. The refill unit comprises a body containing a quantity of ink; an inlet valve actuator for opening an inlet valve of the ink storage compartment when the refill unit is docked therewith; an outlet valve actuator for closing an outlet valve of the ink storage compartment when the refill unit is docked therewith; and a constrictor actuator adapted to be received into an aperture of the ink storage compartment when the refill unit is docked therewith, the constrictor actuator operable to engage a bag constrictor of the ink storage compartment through the aperture to cause a volume of the bag to be decreased.12-10-2009
20090195624Printhead Assembly Having Angled Nested Structure - A printhead assembly includes an elongate ink distribution assembly defining elongate ink ducts from which ink transfer ports extend. The ink distribution assembly further defines a recess in which a laminated stack structure is received in fluid communication with the ink transfer ports. The laminated stack structure has layers between which ink channels in fluid communication with the ports are interleaved. The laminated stack defines at least one cavity in which respective ink ejection print head integrated circuits (ICs) can be received in fluid communication with the ink channels. The cavity is formed in the laminated stack structure so that the ICs can be disposed at a slight angle to the longitudinal axis of the ink distribution assembly.08-06-2009
20100149290METHOD FOR FILLING LIQUID-DISCHARGE-HEAD CARTRIDGE WITH LIQUID, AND METHOD AND APPARATUS FOR MANUFACTURING LIQUID-DISCHARGE-HEAD CARTRIDGE - A method for filling a liquid-discharge-head cartridge with liquid includes a first step in which a suction operation is performed at a first suction pressure while a suction member is moved along the discharge port row in the discharge-port surface at a first moving speed to suck the liquid in the liquid container to fill the discharge ports, and a second step in which a suction operation is performed at a second suction pressure, which is lower than the first suction pressure, while the suction member is moved along the discharge port row in the discharge-port surface at a second moving speed, which is lower than the first moving speed to remove bubbles in the flow path.06-17-2010
20110187800Heated Ink Delivery System - A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.08-04-2011
20080259140Ink-jet recording apparatus - An ink-jet recording apparatus is provided with an ink tank, a recording head, an ink passage extending from the ink tank to the recording head, and a sub-tank arranged on the ink passage. The apparatus has a first ink passage, a second ink passage, and an ultrasonic transducer. The first ink passage supplies ink from the ink tank to the sub-tank. The second ink passage has an ink outlet port, through which the ink is drawn from the sub-tank into the recording head. The ultrasonic transducer applies ultrasonic vibration to the ink contained in the sub-tank. The ink outlet port of the second ink passage is arranged near the ultrasonic transducer.10-23-2008
20080259137Ink Supply System for a Printer - An ink supply system (10-23-2008
20110193919INK JET PRINTER MODULE AND PRINTER USING THE SAME - An ink jet printer module is disclosed, which comprises a module body which forms an outer structure of the module; an ink inlet port, a washing liquid inlet port and a pneumatic inlet port which are provided at the module body and are connected with the main ink tank, the washing liquid tank and the pneumatic pump, respectively; an ink flow path, a washing liquid flow path, and a pneumatic flow path which are provided in the interior of the module body and communicate with the ink inlet port, the washing liquid inlet port and the pneumatic inlet port, respectively; a common flow path which is provided in the interior of the module body and selectively communicates with either the washing liquid flow path or the washing liquid flow path, so that the pneumatic and washing liquid can be selectively inputted; an ink opening and closing valve which is provided at the module body for controlling the opening and closing of the ink flow path; a pneumatic and washing liquid selection valve which is provided in the module body and controls either the pneumatic or the washing liquid to be selectively inputted into the common low path; an ink discharge port which is provided in the module body and discharges the ink of the ink flow path to the outside of the module body in accordance with a control of the ink opening and closing valve; and a common discharge port which is provided in the module body and discharges either the pneumatic or the washing liquid of the common flow path to the outside of the module body in accordance with a control of the pneumatic and washing liquid selection valve.08-11-2011
20110193918FLUID EJECTING APPARATUS AND CLEANING METHOD - A printer includes: a fluid ejecting head provided with multiple nozzles that eject ink; an ink supply tube that supplies the ink to the fluid ejecting head; and a pressure application mechanism that pressurizes the ink to swell from the nozzles by pressurizing the ink within the ink supply tube and then depressurizes the interior of the ink supply tube while the ink is swelling from the nozzles.08-11-2011
20110193917SYSTEM AND METHOD FOR EXTRACTING SOLID-INK PELLETS FROM A CONTAINER - The present disclosure provides systems and methods for supplying solid-ink pellets from a container to a printing apparatus. The solid-ink pellets are held in a collapsible, hermetic bag, which is carried in the container. The bag is partially or fully transparent. A vacuum interface provides an access point to the bag. Further, a perforated nozzle, adapted to engage the vacuum interface, provides airflow within the bag and is configured to apply a suction force to extract solid-ink pellets from the bag.08-11-2011
20090122122IMAGE FORMING APPARATUS INCLUDING RECORDING HEAD - An image forming apparatus includes a carriage configured to movably scan, and including a recording head configured to discharge ink droplets and a sub tank configured to supply ink to the recording head; a main tank configured to supply the ink to the sub tank via a tube; a negative pressure detector configured to detect a state of a negative pressure in the sub tank; a count unit configured to count a number of scans conducted by the carriage; and a control unit configured to cause the negative pressure detector to detect the state of the negative pressure in the sub tank to return the negative pressure in the sub tank to a normal state based on a detection result obtained by the negative pressure detector when the number of scans carried out by the carriage as counted by the count unit reaches a predetermined scan count.05-14-2009
20130083137INK SUPPLY RESERVOIR - An ink supply reservoir, and method of supplying ink, is described.04-04-2013
20100073441Ink Supply Unit For Printhead Of Inkjet Printer - An ink supply unit for supplying ink to a printhead includes an elongate manifold defining a recess for receiving the printhead, and a plurality of ink slots in fluid communication with a back surface of the printhead, the plurality of ink slots being grouped into sets; and an ink supply comprising an elongate housing and a partition unit that together define a plurality of elongate ink chambers, each elongate ink chamber being in fluid communication with a respective set of ink slots. The ink supply further comprises a baffle unit including a number of spaced apart baffles extending into each ink chamber, the baffle unit for reducing acceleration of ink in a longitudinal direction along a length of the elongate housing.03-25-2010
20100073440LIQUID APPLICATION APPARATUS AND METHOD, AND IMAGE FORMING APPARATUS - The liquid application apparatus includes: an application member which has an application surface to apply liquid to a medium; a holding member which holds the liquid in a liquid holding space formed by abutting against the application surface of the application member, the liquid supplied to the application surface by the holding member being applied to the medium by rotating the application surface of the application member; a storage device which stores the liquid, the storage device including a liquid cartridge having a filter to trap foreign matter contained in the liquid, the liquid cartridge being detachable with respect to the storage device; first and second flow channels which connect the storage device and the holding member; and a first liquid movement device which generates a flow of the liquid in a course including the first and second flow channels and the liquid holding space.03-25-2010
20100073438LIQUID CONTAINER, METHOD OF FILLING LIQUID INTO LIQUID CONTAINER, AND REMANUFACTURING METHOD OF LIQUID CONTAINER - According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.03-25-2010
20100073437INKJET RECORDING APPARATUS - An inkjet recording apparatus includes: a recording head including an introduction section, a discharge section and nozzles; a first liquid chamber connected to the introduction section; a second liquid chamber connected to the discharge section; a first buffer tank which is connected to the first liquid chamber and an interior of which is open to air; a second buffer tank which is connected to the second liquid chamber and an interior of which is open to air; and a pressure control device which sets target pressures of the first liquid chamber and the second liquid chamber in such a manner that a prescribed back pressure is applied to the liquid inside the nozzles of the recording head while a prescribed pressure differential is provided between the first liquid chamber and the second liquid chamber, and controls driving of the first pump and the second pump in accordance with determination results of the pressure determination device in such a manner that the internal pressures of the first liquid chamber and the second liquid chamber remain constant at the target pressures, wherein the first buffer tank and the second buffer tank are connected via a flow channel, and at least one of a filter and a deaeration device is provided in the flow channel.03-25-2010
20100073436INK-JET HEAD - Disclosed is an inkjet head. The inkjet head in accordance with an embodiment of the present invention can include a body in which a plurality of chambers divided by partitions are formed; a plurality of actuators coupled to one side of the body respectively such that pressure is supplied to each of the plurality of the chambers; and a fixture coupled to one side of the body in correspondence to a position of each of the partitions such that vibrations of the partitions are reduced.03-25-2010
20100073439SHUTTLE MOUNTED PRESSURE CONTROL DEVICE FOR INKJET PRINTER - A shuttle air supply system which regulates the air pressure in an ink tank of an inkjet printer includes a vacuum supply line coupled to a fixed vacuum source, a valve for controlling the opening of the vacuum supply line actuated by a valve control circuit obtaining measurements from a pressure sensor sensing the pressure in the ink tank and wherein the pressure in the ink tank is regulated by the valve control circuit to a desired ink tank pressure. A pressurized air supply line coupled to a fixed value pressurized air supply and an air pressure valve controlled by the valve control circuit can be added to enhance the pressure setting range.03-25-2010
20130083136FLUID EJECTION ASSEMBLY WITH CIRCULATION PUMP - A fluid ejection assembly includes a fluid slot formed in a first substrate and a channel formed in a chamber layer disposed on top of a second substrate. The bottom surface of the second substrate is adhered to the top surface of the first substrate and fluid feed holes are formed between the fluid slot and the channel. A fluid ejection element is at a first end of the channel and a pump element is at a second end of the channel to circulate fluid horizontally through the channel and vertically through the fluid feed holes.04-04-2013
20130038667Ink Container - Ink concentrate container, comprising an inner volume, containing ink for liquid electrostatic printing (LEP), the ink comprising a carrier liquid and electrically chargeable toner particles for electrostatic imaging, an outlet, and at least one flexible wall extending along the inner volume, so that ink can be pressed through the outlet out of the inner volume by deforming the flexible wall.02-14-2013
20130033550LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - In a passage unit of a recording head, a first ink introduction port of a first reservoir and a second ink introduction port of a second reservoir are formed between the first and second reservoirs. The first and second ink introduction ports are formed at different positions in a nozzle line direction perpendicular to a main scanning direction and are formed to overlap each other in the main scanning direction.02-07-2013
20100045754FLUID RESERVOIR WITH COMPLIANT WALL - A fluid dispensing assembly has a fluid reservoir, a reservoir structure having at least one opening corresponding to a location of at least one fluid chamber in the reservoir structure, and a compliant film arranged to seal the opening and flex in response to pressure fluctuations in the fluid chamber. A system has a fluid supply, a fluid dispensing assembly having a fluid reservoir to receive fluid from the fluid supply, the fluid dispensing assembly having a reservoir structure with at least one opening corresponding to at least one fluid chamber, and a compliant film arranged to cover the opening such that a side of the film contacts fluid in the chamber and a side opposite the side contacting the fluid contacts air and is arranged to allow the film to flex.02-25-2010
20130033551FLUID EJECTION DEVICE - A fluid ejection device includes a chamber, at least one fluid supply channel, and more than two fluid inlets disposed between the fluid channel and the chamber. An inkjet printing system includes a fluid ejection device having a chamber disposed along fluid supply channels within the fluid ejection device, where a first channel is disposed along a first side of the chamber and a second channel is disposed along a second side of the chamber. The chamber includes multiple fluid inlets, where a first plurality of fluid inlets is disposed between the chamber and the first channel and a second plurality of fluid inlets is disposed between the chamber and the second channel.02-07-2013
20100110153INK UNIT INCLUDING INK AND INK-WETTED MEMBER - An ink unit comprising an ink utilized for an inkjet recorder; and a wetted member that contacts with the ink, wherein the ink comprises a pigment dispersedly held in a medium, and the pigment contains particles having a size of 200 nm or larger in 2 volume percent or less, and wherein a principal component of the ink-wetted member is a polyolefin produced by addition of a phenolic anitoxidant.05-06-2010
20090309937INK STORAGE MODULE CAPABLE OF CONTROLLING FLOW OF INK AND RELATED PRINTING SYSTEM - An ink storage module includes an ink flow control device and an air chamber. The ink storage module is accessible to an ink tank and an air-extracting device. The ink flow control device includes an ink storage chamber and a pressure control mechanism. The ink storage chamber is used for receiving and storing ink conveyed from the ink tank. The pressure control mechanism is connected to the ink storage chamber for controlling the connection of an external pressure to the ink storage chamber. The air chamber is disposed at a side of the ink flow control device and is accessible to the ink storage chamber. The air chamber is used for exhausting air extracted by the air-extracting device. When the pressure control mechanism controls the ink storage chamber to cut off the external pressure, the air-extracting device drives ink to flow from the ink tank to the ink storage chamber.12-17-2009
20130027479INK SUPPLY - An ink supply containing an alkaline ink passivates a silicon diaphragm of a pressure sensor against etching from the alkaline ink using a silicon dioxide layer.01-31-2013
20120182363FLOW PATH MEMBER, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A seal member is held in tight contact with a first inner wall of a first opening of a flow-in path section (ink inlet hole) by a fixing member. An ink supply pipe is urged and held into a holding hole of the seal member, so that the ink supply pipe is held in a predetermined position with respect to the first inner wall of the first opening of the ink inlet hole and a second inner wall of a second opening of the ink inlet hole. As a result, the ink supply pipe is held in the ink inlet hole with the first opening of the ink inlet hole being kept airtight.07-19-2012
20130070034LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - Disclosed herein is a liquid ejecting head in which a liquid is able to be filled in a pressure chamber communicated with a nozzle opened in a nozzle plate and droplets are able to be ejected from the nozzle by applying a change in pressure of the liquid in the pressure chamber. The pressure chamber has a deformation portion which is deformed based on the change in the pressure of the liquid in the pressure chamber, in at least a portion of a bottom thereof.03-21-2013
20130070033TECHNIQUE TO MAINTAIN A POSITIVE PRESSURE AT A SEPTUM DURING DEPRESSURIZATION OF AN INK SUPPLY IN AN INKJET PRINTING DEVICE - A technique to maintain a positive pressure at a septum during depressurization of an ink supply in an inkjet printing device is disclosed. In one example, the ink supply is depressurized to a first predetermined positive pressure using an air pump. Further, a second predetermined positive pressure is maintained at the septum when the ink supply is at the first predetermined positive pressure. Furthermore, the ink supply is further depressurized to a third predetermined positive pressure.03-21-2013
20100134570INK REFILL DEVICE AND METHOD - This disclosure provides a device and method for refilling ink cartridges. In some embodiments the device and related method are partially automated. In some embodiments the method involves very few manual steps, the use of the device results in very little ink loss, and the device is easy to maintain.06-03-2010
20100134571LIQUID EJECTION HEAD AND INK-JET PRINTER - A liquid ejection head may include a first flow channel member and a second flow channel member, wherein the first flow channel member and the second flow channel member are disposed to form a liquid supply flow channel configured to supply liquid to an ejection port, a supply and discharge flow channel communicated with a supply port and a discharge port, and a communicating flow channel configured to communicate the supply and discharge flow channel to the liquid supply flow channel. The liquid ejection head may also include a seal member which constitutes a part of the supply and discharge flow channel and connects the first flow channel member to the second flow channel member in a water-tight manner. The communicating flow channel may be communicated with the supply and discharge flow channel via a filter disposed in the interior of the second flow channel member.06-03-2010
20100134572Ink Jet Recording Apparatus and Ink Jet Recording Method - An ink jet recording apparatus which records information on a medium by jetting an ink onto a recording surface of the medium includes an ink accommodation section which accommodates the ink; a head which jets the ink onto the recording surface; a transporting roller which transports the medium on which the information has been recorded; and a powder supply mechanism which supplies a powder to the transporting roller. Image transfer from the recording surface of the medium to the transporting roller and image retransfer from the transporting roller to the recording surface of the following medium are inhibited and which has excellent recording quality.06-03-2010
20130088550LIQUID INK CONTAINERS FOR PRINTING SYSTEMS - A liquid ink container having mating features for self alignment with an ink delivery station. The ink delivery station includes a receiver with an actuated puncture ring. The liquid ink container includes a cap that is punctured by the ring to allow fluid flow from the container. The receiver and container also include means for introducing pressurized gas into the container to facilitate evacuation of liquid ink.04-11-2013
20130088551PROCESSES FOR DELIVERING INK WITHIN A PRINTING SYSTEM - A liquid ink container having mating features for self alignment with an ink delivery station. The ink delivery station includes a receiver with an actuated puncture ring. The liquid ink container includes a cap that is punctured by the ring to allow fluid flow from the container. The receiver and container also include means for introducing pressurized gas into the container to facilitate evacuation of liquid ink.04-11-2013
20100103229INK-JET HEAD AND INK-JET DEVICE - Object: To provide an ink jet ejection head and an apparatus including the ink jet ejection head, which are suitable for realizing maintenance of an ink jet head in such a manner as restoring ink ejection performance and ensuring satisfactory application free from an ejection failure in one or more nozzles.04-29-2010
20090303297Ink Supply Unit For Ink Jet Printer - An ink supply unit for a printhead includes a plurality of ink storage chambers; an ink distribution molding for supplying ink from the ink storage chambers to a back surface of the printhead, the ink distribution molding defining a series of slots for supplying ink via respective ink outlets to the back of the printhead; and a filter configured to fit around the ink distribution molding to filter ink passing through the ink distribution molding. The ink distribution molding and the filter are inserted within a baffle unit, the baffle unit comprising a number of spaced-apart baffles formed within ink channels of respective ink storage chambers to retard acceleration of ink in respective ink storage chambers. The ink distribution molding further defines a print head aperture within which the print head is attached.12-10-2009
20090303296INKJET PRINTHEAD - An inkjet printhead comprising a substrate having an ink feed slot formed in the substrate and having a first longitudinal edge and a second longitudinal edge opposite to said first longitudinal edge, the first longitudinal edge extending along a first longitudinal axis (X); a first row of vaporization chambers arranged along said first longitudinal edge and a second row of vaporization chambers arranged along the second longitudinal edge, in which each chamber (12-10-2009
20120218356CONSUMABLE SUPPLY ITEM WITH CAPACITIVE FLUID LEVEL DETECTION FOR MICRO-FLUID APPLICATIONS - A consumable supply item for an imaging device holds an initial or refillable volume of fluid. Its housing defines an interior having a pair of opposed electrodes. The electrodes define a capacitance that varies in response to an amount of liquid between them. A volume space filled by the liquid varies along a length of the electrodes. The design facilitates abrupt changes in capacitance values at each change in the volume space. Devices can recalibrate fluid levels at these changes. Electrode interior surfaces face one another. At least one electrode has an open region, such as a hole or a cutout of material. In another design, a support material connects to each electrode to provide mechanical stability and create a region preventing filling by the liquid. Further embodiments contemplate material selection, construction, and modularity, to name a few.08-30-2012
20130057622FLUID EJECTION ASSEMBLY WITH CIRCULATION PUMP - A fluid ejection assembly includes a fluid slot, and a group of uniformly spaced drop generators, where each drop generator is individually coupled to the fluid slot through a first end of a drop generator channel and to a connection channel at a second end of the drop generator channel. The fluid ejection assembly includes a pump disposed within a pump channel located between two drop generator channels, and is configured to circulate fluid from the fluid slot, into the connection channel through the pump channel, and back to the fluid slot through the drop generator channels.03-07-2013
20130057621Liquid Supply Flow Path Device and Liquid Ejecting Apparatus Using The Same - A recording apparatus that comprises a case in the interior of which is an ink nozzle; an opening and closing member movably affixed to an upper side of the case, the opening and closing member being configured to open and close; an external tank located exterior to the case; a liquid supply flow path that provides a liquid from the external tank to the ink nozzle; and a securing member disposed between the opening and closing member and liquid supply flow path and that secures the liquid supply flow path.03-07-2013
20130057620Liquid Supply Flow Path Device and Liquid Ejecting Apparatus Using The Same - A recording apparatus comprises a case and an ink nozzle in the interior of the case. An opening and closing member is movably affixed to an upper side of the case. The opening and closing member is configured to open and close. An external tank is located exterior to the case. A tube provides a liquid from the external tank to the ink nozzle. A portion of the tube extends into the case through a gap between the case and the opening and closing member in the closed position.03-07-2013
20090091607Method Of Refilling A Printing Unit - A method of refilling a supply of printing fluid in a printing unit. The method comprises the steps of removably mounting a dispenser unit of printing fluid to the printing unit so as to align and engage a plurality of outlets of the dispenser unit with a plurality of inlets of a plurality of printing fluid storage chambers of the printing unit, the dispenser unit being configured so that only one outlet of the plurality of outlets connects to printing fluid stored within an enclosure of the dispenser unit; determining an amount of printing fluid needed to refill the printing fluid storage chamber via the inlet engaged with said one outlet; disengaging a ratchet mechanism of the dispenser unit so as to facilitate a reduction of volume in the enclosure by a plunger; and engaging the plunger so as to effect the reduction of volume in the enclosure until the ratchet mechanism is reengaged, thereby dispensing fluid from the enclosure into the printing fluid storage chamber. The steps of disengaging the ratchet mechanism and engaging the plunger are repeated until the determined amount of printing fluid is dispensed into the printing fluid storage chamber.04-09-2009
20100060699INK-JET PRINTER - Disclosed is an inkjet printer. The inkjet printer in accordance with an embodiment of the present invention includes a supply channel coupled to a plurality of inkjet heads; a first main reservoir and a second main reservoir being coupled to either side of the supply channel; and a first press and a second press applying pressure to the inside of the first main reservoir and the second main reservoir, respectively.03-11-2010
20110037814INK SUPPLY SYSTEM - An ink supply system for an ink jet printer, particularly a continuous ink jet printer, has a manifold assembly of two parts that are brought together at interfacing surfaces. At least one of the surfaces has a plurality of ink flow channels for conveying ink around an ink circuit between components. The other of the interfacing surfaces is configured to close and seal the channels. A plurality of ports is provided in fluid communication with the channels, the circuit components being connectable to the ports. The manifold assembly provides for a compact and neat arrangement free of many tubes and pipes. The lower number of connections significantly reduces the risk of leakage.02-17-2011
20110012966APPARATUS FOR REGULATING AIR PRESSURE IN INK TANK AND INK-SUPPLYING SYSTEM HAVING THE SAME - The present invention relates to an ink-supplying system. The ink-supplying system includes an ink tank for receiving ink therein, a vacuum pump configured for providing a pressure below atmospheric pressure in the ink tank, a first regulating unit, at least one second regulating unit, and a third regulating unit disposed between the vacuum pump and the ink tank, and in communication with each other. The first regulating unit and the third regulating unit each includes a pressure regulating valve and a buffer tank connected therewith, and the at least one second regulating unit comprises a closed-loop pressure regulating valve and a buffer tank connected with the closed-loop pressure regulating valve.01-20-2011
20110012965Ink Delivery Systems - Ink delivery systems to provide ink from a reservoir to an applicator pad for marking a surface. Ink is stored in a reservoir within a marker body. A valve system controls the flow of ink to the applicator pad to prevent puddling of ink on the marking surface. The reservoir is a hollow body with free flowing ink or may contain a fiber reservoir at least partially saturated with ink. The reservoir may also contain capillary channels and ribs to aid in transporting ink to the valve system. The valve system includes a plug and a spring to bias the plug in a closed position. The plug includes at least one contact surface to contact a housing, and thereby control the flow of ink from the reservoir to the applicator pad. The spring may be a coil spring or a compressible foam-like spring.01-20-2011
20110012964FLUID HEIGHT BACKPRESSURE SYSTEM FOR SUPPLYING FLUID TO A PRINTHEAD AND BACKPRESSURE DEVICE USED THEREIN - A fluid height backpressure system includes a printhead, a fluid supply tank, a backpressure device, and an air removal device. The backpressure device responsible for supplying system backpressure includes a tower disposed in an upright position and having a plurality of walls defining first and second chambers for respectively communicating with the ink supply tank and a fluid supply reservoir of the printhead. The air removal device provides additional backpressure in the second chamber, allows backpressure in the system to be maintained even with an empty fluid supply tank, and also supply of ink to the fluid supply reservoir of the printhead substantially without air bubbles being introduced therein Also, ink sensors are utilized for sensing out-of-ink/ink-low conditions and also to help establish and continue the operation of the backpressure device.01-20-2011
20100097432Ink Reservoir With Automatic Air Vent - An ink reservoir for a printer with an inkjet printhead includes a housing for storing a quantity of ink; an air inlet valve having a ball biased against an aperture of the air inlet valve for sealing an interior of the housing from atmosphere; an ink outlet valve having a circular valve seat and a ball for sealing against the valve seat; and a valve actuator having a sliding shaft extending between the ink outlet valve and the air inlet valve. The valve actuator opens the air inlet valve in response to the ink outlet valve opening to establish fluid communication with the inkjet printhead. The ball in the ink outlet valve is adapted to engage one end of the sliding shaft to slide the shaft towards the air inlet valve, whereat the other end of the shaft engages the ball of the air inlet valve against the bias applied thereon.04-22-2010
20090073243PRESSURE-REGULATING VALVE, FUNCTIONAL LIQUID SUPPLYING APPARATUS, IMAGING APPARATUS, METHOD OF MANUFACTURING ELECTRO-OPTIC DEVICE, ELECTRO-OPTIC DEVICE, AND ELECTRONIC APPARATUS - In a pressure-regulating valve which supplies a functional liquid from a functional liquid tank to a functional liquid droplet ejection head, using, as a reference regulating pressure, atmospheric pressure which a diaphragm receives, a valve-disc energizing spring, which energizes a valve disc for opening and closing a communication passage communicating a primary chamber and a secondary chamber, is configured so as to be separated from a housing main body along with a lid body.03-19-2009
20090058957PRINTHEAD INTEGRATED CIRCUIT HAVING LONGITUDINAL INK SUPPLY CHANNELS REINFORCED BY TRANSVERSE WALLS - A printhead integrated circuit that has a plurality of nozzles formed on a frontside of a monolithic wafer substrate, the nozzles being arranged in rows extending longitudinally along the substrate. Each nozzle has a respective nozzle inlet extending partially through the monolithic wafer substrate. The integrated circuit also has a plurality of ink supply channels defined in a backside surface of the monolithic wafer substrate which extend longitudinally along the backside of the substrate. Each ink supply channel is deep enough to meet the nozzle inlets such that ink fed to the backside surface of the substrate is supplied to the nozzles on the frontside. The nozzles supplied with ink from one of the ink supply channels are different to the nozzles supplied with ink by another of the ink supply channels such that different ink colors are simultaneously printed. Each ink supply channel is separated into channel sections by one or more transverse walls that structurally stiffen the monolithic wafer substrate.03-05-2009
20130063531INK-JET RECORDING APPARATUS - An ink-jet recording apparatus, including: a recording portion movable to eject ink to perform image recording; flexible ink supply tube connected to the recording portion; and an ink-supply portion for supplying the ink to the ink supply tube. The ink supply tube includes first and second end portions respectively connected to the recording portion and the ink-supply portion. The ink supply tube extends at the first end portion in a first direction and is curved to extend to the ink-supply portion in a second direction, and a shape of the ink supply tube is changed following the movement of the recording portion. The ink-jet recording apparatus comprises a first board at least a portion of which overlaps, in plain view, an occupied area the ink supply tube can occupy while changing in shape, the first board including a controller for controlling the ink-jet recording apparatus.03-14-2013
20090122121INK STORAGE CONTAINER - An ink storage container having a simply configured ink exchange function is provided, whereby the amount of stored ink is increased. An air flow control unit for controlling the flow of air between the inside and outside is disposed in an ink storage unit for storing ink. The air flow control unit includes: a valve element that is formed of an interconnected porous material and allows air to be exchanged between the inside and outside of the ink storage unit according to positive and negative changes in the internal pressure of the ink storage unit; and a liquid repellent membrane that has air permeability and liquid repellency and is disposed on an ink side of the valve element.05-14-2009
20090237472INK REFILL UNIT FOR AN INK RESERVOIR - A refill unit for an ink reservoir that has an inlet valve for receiving refill ink and an outlet valve for fluid communication with an inkjet printhead. The refill unit has a docking assembly for docking with the ink reservoir, an ink bag for storing ink, a valve actuator configured to close the outlet valve of the ink reservoir and subsequently open the inlet valve upon docking the docking assembly with the ink reservoir, an ink delivery outlet assembly for establishing fluid communication between the ink bag and the ink reservoir upon docking the docking assembly with the ink reservoir and, constrictor actuators for increasing pressure in the ink bag upon docking the docking assembly with the ink reservoir, and reducing pressure in the ink reservoir upon disengagement of the docking assembly and the ink reservoir.09-24-2009
20090237471Printing Fluid Supply Device With Channeled Absorbent Material - A printing fluid supply device for a printhead comprises a printing fluid storage compartment for storing printing fluid; an absorbent material provided in the printing fluid reservoir, the absorbent material comprising a plurality of channels formed therethrough; and a fluid trapping layer provided between the absorbent material and the printhead. The fluid trapping layer is adapted to absorb printing fluid and draw printing fluid from the printing fluid storage compartment into and through the absorbent material.09-24-2009
20090237470AUXILIARY PASSAGE UNIT, LIQUID DISCHARGE HEAD HAVING THE SAME ATTACHED THERETO, ATTACHMENT, INK JET HEAD HAVING THE SAME ATTACHED THERETO, AND INK JET PRINTER - An auxiliary passage apparatus, an attachment, a liquid discharge head, and a ink jet head are provided. The auxiliary passage apparatus is detachably attached to a liquid discharge head and includes a main body portion including, a first surface, a second surface, a supply passage formed in the first surface and through which liquid passes to a discharge head, and an ejection passage formed in the second surface and through which liquid which is ejected from the discharge head passes. A part of the supply passage includes a first annular projection formed so as to protrude in a direction orthogonal to the first surface and a first flexible film adhered to a distal end of the first annular projection. A part of the ejection passage crosses an area on the second surface which is opposed to an area surrounded by the first annular projection.09-24-2009
20090237469LIQUID DELIVERY SYSTEM AND MANUFACTURING METHOD FOR THE SAME - The liquid delivery system includes a liquid receptacle (09-24-2009
20080259139METHOD OF PRIMING PICOLITRE INKJET PRINTHEAD - A method of priming an inkjet printhead having ink ejection nozzles. The method includes: providing an ink bag containing ink for distribution to the nozzles via a fluid path between the ink bag and the nozzles; applying inwardly directed force on at least one exterior wall of the ink bag so as to reduce an available fluid volume of the ink bag, thereby causing ink to flow from the ink bag to the nozzles along the fluid path; and arranging a biasing member in the ink bag so that the biasing member applies outwardly directed force on at least one interior wall of the ink bag to restrain the reduction of available fluid volume of the ink bag only once the available fluid volume has been reduced to a predetermined volume. Each nozzle is configured to eject an ink drop having a volume of about 1.2 picolitres.10-23-2008
20090046132Ink supply device in inkjet recorder - It is desirable that the entire ink to be furnished to the nozzle head be deaerated efficiently, the entire ink including a portion of ink recovered from the purge section.02-19-2009
20090009571PRINTER RECEIVING CARTRIDGE HAVING PAGEWIDTH PRINTHEAD - A printer is provided configured to removably receive a cartridge. The cartridge has a body containing an enclosed volume for holding a supply of printing fluid and a pagewidth printhead in fluid communication with the enclosed volume. The printer is configured such that the body and all of the pagewidth printhead of the cartridge are simultaneously user removable and replaceable as a single component.01-08-2009
20090009570INK-JET RECORDING APPARATUS AND METHOD OF PREVENTING CLOGGING OF NOZZLE DISCHARGING INK - An ink-jet recording apparatus is provided which includes an ink-jet head having a plurality of ink chambers and a common ink chamber which communicates with each of the plurality of ink chambers to supply ink to the plurality of ink chambers, the ink-jet head maintaining the plurality of ink chambers at a negative pressure in image recording, selecting one of the plurality of ink chambers on the basis of printing data and causing change in volume of the selected ink chamber, and thereby performing image recording by discharging the ink from a nozzle, and a pressure section which applies a positive pressure to the plurality of ink chambers when the ink-jet head is in a left state, the positive pressure being a pressure at which the ink is not discharged from the nozzle.01-08-2009
20090009569IMAGE FORMING APPARATUS INCLUDING LIQUID DISCHARGE HEAD UNIT - An image forming apparatus including a liquid discharge head unit which in turn includes (a) a liquid discharge head including multiple liquid chambers connected to multiple nozzles for discharging liquid droplets, and a common liquid chamber including a liquid supply opening and a liquid discharge opening, to supply a liquid to the multiple liquid chambers, (b) a sub tank including a liquid container, connected to the liquid supply opening to store the liquid to be supplied to the liquid discharge head, (c) a tank connected to the liquid discharge opening to store the liquid used for filling the liquid discharge head, and (d) a mechanism to return the liquid in the tank to the sub tank.01-08-2009
20090009568FLOW PATH CONNECTING DEVICE AND RECORDING APPARATUS - A flow path connecting device includes a first flow path having a first connector and configured to channel fluids, a second flow path having a second connector and configured to channel fluids, a moving unit configured to move at least one of the first and second connectors, to interconnect the first and second connectors so that the first and second flow paths are communicated with each other, and to separate the first and second connectors from each other, and a control unit configured to control the moving unit, when the first and second connectors separate from each other, to set a relative speed of the first and second connectors to a first speed or less in a period from a start of the separation till a lapse of predetermined time, and set the relative speed to a second speed that is higher than the first speed after the lapse of the predetermined time.01-08-2009
20110018946AZO COMPOUNDS, AZO PIGMENTS, AND DISPERSION, COLORING COMPOSITION AND INK FOR INKJET RECORDING CONTAINING THE AZO COMPOUNDS OR AZO PIGMENTS, INK TANK FOR INKJET RECORDING, INKJET RECORDING METHOD, AND RECORDED PRODUCTS - An azo pigment represented by the general formula (1), a tautomer, salt, or hydrate thereof:01-27-2011
20120236086LIQUID SUPPLYING AND COLLECTING APPARATUS - An ink supplying and collecting apparatus includes a case, ink cartridges detachably attached to the case, and a collecting container detachably attached to the case. The ink cartridges supply ink to a recording head of a printer via ink supply tubes. The collecting container collects ink drained from the recording head via an ink drain tube. The case is located outside of and is separate from the printer. Thus, the sizes and shapes of the ink cartridges and the collecting container can be freely designed.09-20-2012
20130162728INK SUPPLY DEVICE SUPPLYING INK TO RECORDING HEAD - A plurality of tubes each corresponds to each of a plurality of connection ports and each has one end connected to a storage portion and the other end connected to the corresponding connection port. Ink is configured to be supplied from the storage portion to a flow channel member through the plurality of tubes. Each of the plurality of tubes has a first portion adjacent to the other end and a second portion adjacent to the first portion. The first portion is positioned between the other end and the second portion. A tube retaining member is provided on the carriage and includes a first retaining portion configured to retain the first portions to be arranged in a second direction, and a second retaining portion configured to retain the second portions to be arranged in a third direction intersecting with an imaginary plane.06-27-2013
20100201760LIQUID EJECTING HEAD, METHOD OF MANUFACTURING THE SAME, AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes: a first passageway member which forms a part of a wall surface of a liquid passageway; a second passageway member which forms a part of a wall surface of the liquid passageway different from the first passageway member; and an integral molding member which is formed in the periphery of the liquid passageway so that the first and second passageway members are integrally molded and bonded to each other, wherein the first and second passageway members have a bonding region where the first and second passageway members are bonded to each other in the periphery of the liquid passageway at a boundary between the first and second passageway members, and wherein the integral molding member is formed on the outside of the bonding region.08-12-2010
20110128329LIQUID EJECTION APPARATUS - A liquid ejection apparatus includes a pressure sensor and a determining unit. The pressure sensor is configured to detect a pressure in an ink supply path for use in supplying ink from an ink tank to a recording head. The determining unit determines whether the ink supply path is anomalous based on a result of detection of the pressure in the ink supply path by the pressure sensor performed in response to application of a fluctuating pressure to the ink in the ink tank.06-02-2011
20120026256LIQUID SUPPLYING APPARATUS AND LIQUID EJECTING APPARATUS - A liquid supplying apparatus includes: a pressure applying device applying pressure to the liquid inside a supply flow channel connected to a liquid supply object; a pressure buffering unit including a deformable or movable partition separating a liquid chamber connected to the supply flow channel and a gas chamber; a gas flow channel switching device connecting and disconnecting the gas chamber and a gas storage unit; an atmosphere connection channel switching device connecting and disconnecting the gas storage unit to and from the atmosphere; a switching controlling device controlling operations of the gas flow channel switching device and the atmosphere connection channel switching device during initial position adjustment of the partition and during pressurization of the liquid supply object; and a pressure controlling device controlling the pressure applying device in response to the operations of the gas flow channel switching device and the atmosphere connection channel switching device.02-02-2012
20100214382PRINTHEAD CARTRIDGE VALVE ASSEMBLY WITH DIAPHRAGM PRESSURE REGULATOR - A valve assembly for a printhead cartridge includes an inlet valve for engaging with an outlet valve of an ink cartridge, the inlet valve having a conical structure defining an inlet opening at a top thereof; a valve seat defined on an inner surface of the conical structure; a depressible valve member provided within the inlet valve, the depressible valve member being normally biased against the valve seat to form therewith a fluidic seal; a skirt engaging portion defined on the inner surface of the conical structure above the valve seat, the skirt engaging portion for engaging a resilient skirt of the ink cartridge, and a pressure regulator provided below the depressible valve member, the pressure regulator having a diaphragm and a regulator inlet defined through the diaphragm, the regulator inlet for facilitating flow of ink from a valve-side of the diaphragm to a printhead-side. The skirt engaging portion is dimensioned to engage the resilient skirt of the ink cartridge simultaneously with an engagement of a valve stem of the ink cartridge with the depressible valve member.08-26-2010
20110279580ROTARY VALVE FOR PRINTHEAD - A rotary valve for distributing ink from an ink source to a media width inkjet printhead, the valve having a body, a shaft rotatably mounted to the body, a channel cylinder arranged on the shaft to be rotatable therewith, the channel cylinder having a channel defined along its circumference, a port cylinder fixed to the body relative to the shaft so as to concentrically and sealingly enclose the channel cylinder, the port cylinder having a plurality of ports defined therethrough along its circumference for respective connection to the printhead and ink source, each port being aligned with a portion of the channel and a selection device for selectively rotating the shaft to establish interconnection between the ports and the channel thereby allowing ink flow between the ports via the channel.11-17-2011
20110279577MULTI-CHANNEL VALVE FOR PRINTHEAD - A multi-channel valve for a media width inkjet printhead, the printhead being connected to a plurality of ink supplies via a plurality of ink flow channels, the valve having a body, a plurality of sealed chambers within the body, a plurality of groups of ports on the body, each port group being associated with a respective one of the chambers and having individual ports for respective connection to the printhead and a respective one of the ink supplies and a selection device for selectively establishing interconnection between the ports of each port group to allow ink flow therebetween for each of the channels.11-17-2011
20110279568PRINTING SYSTEM HAVING PRINTHEAD BYPASS - A printing system having a media width printhead having a first fluid port at one longitudinal end of the media width and a second fluid port at the other longitudinal end of the media width; a first fluid path connected to the first fluid port of the printhead, a second fluid path connected to the second fluid port of the printhead, a third fluid path interconnecting the first and second paths, wherein the first, second and third paths are configured so that fluid flows between the first and second paths via the printhead and via the third fluid path.11-17-2011
20110279563SEPTUM ASSEMBLY FOR FLUID CONTAINER - A septum assembly for a fluid container is provided having a first septum having a membrane which is piercable by a septum needle sealingly located within a fluid port of the fluid container which communicates with a fluid reservoir of the fluid container, and a second septum having a slit through which the septum needle passes sealingly located within the fluid port of the fluid container adjacent the first septum so that the septum needle passes through the slit of the second septum before piercing the first septum.11-17-2011
20110279562SYSTEM FOR DISTRIBUTING FLUID AND GAS WITHIN PRINTER - A system for distributing fluid and gas within a printer is provided having a fluid container having three fluid ports, a first fluid path connecting the first fluid port to a printhead of the printer, a second fluid path connecting the second fluid port to the printhead, and a third fluid path connecting the third fluid port to a gas vent. The first and second fluid ports are configured so that fluid from the fluid container flows between the first and second fluid paths via the printhead and the third fluid port is configured so that gas flows between the fluid container and gas vent.11-17-2011
20110279566PRINTING SYSTEM HAVING CLOSED FLUID PATH FOR PRINTHEAD - A printing system having a fluid source, a first fluid path connecting the fluid source to a first fluid port of the printhead, a second fluid path connecting the fluid source to a second fluid port of the printhead, wherein the first and second paths are configured so that fluid from the fluid source flows between the first and second paths via the printhead.11-17-2011
20110279584SIMPLE PRINTHEAD COUPLING FOR FLUID DISTRIBUTION - A coupling assembly for distributing fluid to a printhead, the coupling assembly having a housing, a seal member received in a recess of the housing, a port plate movably mounted on the housing by a washer which is press-on mounted to a shaft through the port plate and housing, and a tube retainer mounted within a groove of the housing for retaining fluid distribution tubes, the retainer having a plurality of holes aligned with respective ones of a plurality of ports in the port plate and a plurality of seals of the seal member for fluidically connecting the retained fluid distribution tubes with respective fluid spouts of the printhead, wherein mounting of each of the seal member, port plate and retainer to the housing is achieved in a non-fastened manner.11-17-2011
20110279587ATTACHMENT, LIQUID CONTAINER, AND LIQUID SUPPLY APPARATUS - An attachment is mounted on a cartridge holder of a printer as a replacement of an ink cartridge. An ink outlet member having a link passage is separably secured to an attachment body. Ink is supplied from the exterior to the ink outlet member through an ink supply tube. When the attachment is mounted on the cartridge holder, a downstream end of the ink outlet member is positioned with respect to and connected to an ink supply needle of the printer. Accordingly, the attachment is easily and quickly installed in a liquid ejection apparatus. This reduces costs and makes it easy to use the attachment.11-17-2011
20110279586SYSTEM FOR COUPLING FLUID SUPPLY TO PRINTHEAD - A system for coupling a media width printhead to a fluid supply is provided having a printhead having a fluid inlet coupling at one longitudinal end of the media width and a fluid outlet coupling at the other longitudinal end of the media width, an inlet supply coupling having fluid ports defined in a port plate for engagement with fluid ports of the inlet coupling, an outlet supply coupling having fluid ports defined in a port plate for engagement with fluid ports of the outlet coupling, and a coupling drive mechanism connected to the port plates of the supply couplings via pre-compressed compression springs. The coupling drive mechanism is operational to move the port plates relative to the printhead so as to drive the ports of the supply couplings into engagement with the respective ports of the printhead couplings.11-17-2011
20110279574PRINTING SYSTEM HAVING MULTI-PATH, MULTI-CHANNEL VALVE FOR BYPASSED PRINTHEAD - A printing system having a media width printhead, a plurality of fluid containers fluidically interconnected with the printhead via a respective plurality of closed fluid flow loops, a plurality of bypass fluid paths bypassing the printhead, each bypass path being associated with a respective one of the closed loops and a multi-path, multi-channel valve for selectively allowing fluid flow along each of the closed loops via the printhead and the respective bypass paths.11-17-2011
20110279579MULTI-CHANNEL DIAPHRAGM VALVE FOR PRINTHEAD - A multi-channel diaphragm valve for distributing ink from a plurality of ink supplies to a media width inkjet printhead via a plurality of ink flow channels, the valve having: a body; a plurality of sealed chambers within the body, a plurality of groups of ports on the body, each port group being associated with a respective one of the chambers and having individual ports for respective connection to the printhead and a respective one of the ink supplies and a plurality of diaphragm pads having seals for sealing respective ones of the ports and a selection device for manipulating the diaphragm pad to selectively seal and un-seal the ports to establish interconnection between the ports of each port group to allow ink flow therebetween for each of the channels.11-17-2011
20110279578DIAPHRAGM VALVE FOR PRINTHEAD - A diaphragm valve for distributing ink from an ink source to a media width inkjet printhead, the valve having a body, a plurality of ports on the body for connection to the ink source and printhead, a chamber within the body via which the ports are able to be interconnected, a diaphragm pad having seals for sealing respective ones of the ports and a selection device for manipulating the diaphragm pad to selectively seal and un-seal the ports to establish interconnection between the ports thereby allowing ink flow therebetween.11-17-2011
20110279576MULTI-PATH VALVE FOR PRINTHEAD - A multi-path valve for a media width inkjet printhead, the printhead being connected to an ink source via a closed ink flow loop, the valve having a body, a first port on the body for connection to the ink source, a second port on the body for connection to the printhead, a third port on the body for connection to a bypass ink path which bypasses the printhead on the closed loop, a fourth port on the body for connection to a gas vent on the closed loop, a chamber within the body via which the first, second, third and fourth ports are able to be interconnected and a selection device for selectively establishing interconnection between the first, second, third and fourth ports to allow ink flow therebetween.11-17-2011
20110279575FLUID DISTRIBUTION SYSTEM FOR PRIMING PRINTHEAD - A fluid distribution system for a printhead, the system having a fluid container fluidically interconnected with the printhead via a closed fluid flow loop, the fluid being drawn from the container in a first direction around the closed loop by the printhead during printing and a pump on the closed loop, the pump being operational to draw fluid from the container in an opposite, second direction around the closed loop.11-17-2011
20110279573FLUID DISTRIBUTION SYSTEM HAVING MULTI-PATH, MULTI-CHANNEL VALVE FOR BYPASSED PRINTHEAD - A fluid distribution system for a printhead, the system having a plurality of fluid containers fluidically interconnected with the printhead via a respective plurality of closed fluid flow loops, a plurality of bypass fluid paths bypassing the printhead, each bypass path being associated with a respective one of the closed loops and a multi-path, multi-channel valve for selectively allowing fluid flow along each of the closed loops via the printhead and the respective bypass paths.11-17-2011
20110279572PRINTING SYSTEM HAVING MULTI-PATH VALVE FOR BYPASSED PRINTHEAD - A printing system having a media width printhead, a fluid container fluidically interconnected with the printhead via a closed fluid flow loop, a bypass fluid path bypassing the printhead on the closed loop and a multi-path valve on the closed loop for selectively allowing fluid flow along the closed loop via the printhead and the bypass path.11-17-2011
20110279570PRINTING SYSTEM HAVING PRINTHEAD BYPASS FROM CONTAINER - A printing system having a fluid container, a media width printhead having a first fluid port at one longitudinal end of the media width and a second fluid port at the other longitudinal end of the media width, a first fluid path interconnecting the container and the first fluid port of the printhead, a second fluid path interconnecting the container and the second fluid port of the printhead, a third fluid path interconnecting the first and second paths, wherein the first, second and third paths are configured so that fluid from the container flows between the first and second paths via the printhead and via the third fluid path.11-17-2011
20110279569FLUID DISTRIBUTION SYSTEM HAVING PRINTHEAD BYPASS FROM CONTAINER - A fluid distribution system for a printhead, the system having a fluid container, a first fluid path interconnecting the container and a first fluid port of the printhead, a second fluid path interconnecting the container and a second fluid port of the printhead, a third fluid path interconnecting the first and second paths, wherein the first, second and third paths are configured so that fluid from the container flows between the first and second paths via the printhead and via the third fluid path.11-17-2011
20110279567FLUID DISTRIBUTION SYSTEM HAVING PRINTHEAD BYPASS - A fluid distribution system for a printhead, the system having a first fluid path connected to a first fluid port of the printhead, a second fluid path connected to a second fluid port of the printhead, a third fluid path interconnecting the first and second paths, wherein the first, second and third paths are configured so that fluid flows between the first and second paths via the printhead and via the third fluid path.11-17-2011
20110279560METHOD OF DISTRIBUTING FLUID PRESSURE IN PRINTING SYSTEM - A method of distributing fluid pressure in a printing system, the method having providing the printing system with a first fluid container, a printhead having fluid ejection nozzles, and a second fluid container connected between the first container and the printhead for delivering fluid from the first container to the printhead and locating the first container above the printhead and the second container and locating the second container below the printhead such that negative fluid pressure is provided at the nozzles of the printhead and positive fluid pressure is provided at the second container.11-17-2011
20110279565MULTI-CHANNEL VALVE APPARATUS FOR PRINTHEAD - A multi-channel valve apparatus for a multi-channel printhead is provided having ink ports and gas ports defined through a body, first and second pinch elements, and a pinch drive arrangement for selectively moving the first and second pinch elements. Each ink port is configured to receive therethrough a respective one of ink tubes interconnecting ink containers with the printhead. Each gas port is configured to receive therethrough a respective one of gas tubes interconnecting gas vents with the printhead. The first pinch element is moved into and out of pinching contact with the ink tubes so as to respectively block and allow fluid flow through the ink tubes. The second pinch element is moved into and out of pinching contact with the gas tubes so as to respectively block and allow fluid flow through the gas tubes.11-17-2011
20110279564SYSTEM FOR VENTING GAS AT INK CONTAINERS - A system for venting gas at ink containers which supply inks to a multi-channel inkjet printhead is provided having a plurality of ink containers for supplying fluids to a printhead having a plurality of ink channels, and a gas vent assembly having a plurality of gas vents. Each ink container has an ink port connected to a corresponding one of the ink channels of the printhead and a gas port. Each gas vent is connected to a corresponding one of the gas ports of the ink containers. The gas vents of the gas vent assembly are in fluid communication with the external atmosphere.11-17-2011
20110279561FLUID DISTRIBUTION SYSTEM HAVING VALVED FLUID CONTAINER - A system for distributing fluid to a printhead, the system having a printhead a first fluid container and a second fluid container for distributing fluid from the first container to the printhead, the second container having a body for containing the fluid to a predetermined capacity, an inlet connected to the first container, a valve at the inlet, and an outlet connected to the printhead, wherein the valve is operated so that the valve is closed when the body contains fluid at the predetermined capacity and is open when fluid is distributed to the printhead via the outlet.11-17-2011
20110279558METHOD OF CONTROLLING FLUID PRESSURE AT PRINTHEAD - A method of controlling fluid pressure at a printhead with a fluid distribution arrangement, the method having providing the fluid distribution arrangement with a first fluid container, a fluid connector for connection to a fluid input of the printhead, and a second fluid container connected between the first container and the connector for delivering fluid from the first container to the connector and locating the second container relative to the first container and the connector so that a fluid pressure difference between fluid contained within the second container and fluid at the connector is independent of the amount of fluid contained within the first container.11-17-2011
20110279557Fluid Distribution System for Pressure Control at Printhead - A fluid distribution system for a printhead. The system having a first fluid container a fluid connector for connection to a fluid input of the printhead; and a second fluid container connected between the first container and the connector for delivering fluid from the first container to the connector, wherein the second container is located relative to the first container and the connector so that a fluid pressure difference between fluid contained within the second container and fluid at the connector is independent of the amount of fluid contained within the first container.11-17-2011
20090147058APPARATUS AND METHOD OF FILLING INK TANK - An apparatus and method of filling a tank with a fluid are provided. The method includes providing the tank including a porous media positioned therein, the tank having a length dimension and a width dimension; providing a plurality of needles, each needle having a first end connectable in fluid communication with a fluid source and a second end including a fluid outlet port, the fluid outlet port having an axis; orienting each needle such that the axis of the fluid outlet port is substantially parallel with a preferred direction, the preferred direction being along one of the length dimension and the width dimension of the tank; inserting each needle into the porous media positioned within the tank; and filling the tank with fluid from the fluid source.06-11-2009
20110279571FLUID DISTRIBUTION SYSTEM HAVING MULTI-PATH VALVE FOR BYPASSED PRINTHEAD - A fluid distribution system for a printhead, the system having a fluid container fluidically interconnected with the printhead via a closed fluid flow loop, a bypass fluid path bypassing the printhead on the closed loop and a multi-path valve on the closed loop for selectively allowing fluid flow along the closed loop via the printhead and the bypass path.11-17-2011
20090309938INK JET PRINT HEAD MANUFACTURING METHOD AND INK JET PRINT HEAD - An ink jet print head manufacturing method and an ink jet print head are provided in which a shape of an adhesive that bonds a support member and a print element substrate together is controlled to maintain a high level of ink ejection performance even if the print element substrate is reduced in size. The adhesive, after being disposed between the support member and the print element substrate, is elongated and then hardened. This process allows the shape of the adhesive to be controlled, securing a sufficient ink path between an ink supply port on the support member side and an ink introducing port on the print element substrate side.12-17-2009
20110279582MULTI-CHANNEL VALVE ARRANGEMENT FOR PRINTHEAD - A multi-channel valve arrangement for distributing ink from a plurality of ink supplies to a media width inkjet printhead via a plurality of ink tubes each defining an individual ink flow channel, the valve having a body, a plurality of ports defined through the body, each port being configured to receive a respective one of the ink tubes therethrough, a movable pinch element extending across the ports and a pinch drive arrangement for selectively moving the pinch element into and out of pinching contact with the ink tubes so as to respectively block and allow ink flow through the ink tubes.11-17-2011
20110279583LIQUID CONTAINER WITH PASSIVE CAPACITY STATE SENSING - A liquid container for supplying liquid to a printer, the liquid container having a body having an interior space for containing liquid to a predetermined capacity, a port through the body for delivery of liquid into the body to the predetermined capacity, an aperture through the body at which the interior space of the body is in communication with atmosphere external to the fluid container and a hydrophobic film between the aperture and the interior space of the body, the film being configured so that contact with the liquid being delivered via the port causes a change in the fluid pressure at the port.11-17-2011
20110279581MULTI-CHANNEL ROTARY VALVE FOR PRINTHEAD - A multi-channel rotary valve is provided for distributing ink from ink supplies to a media width inkjet printhead via ink flow channels. The valve has a body, a shaft rotatably mounted to the body, a cylindrical channel arrangement mounted on the shaft to be rotatable therewith, a cylindrical port arrangement fixed to the body relative to the shaft so as to concentrically and sealingly enclose the channel arrangement, and a selection device. The channel arrangement has individual channels defined along its circumference. The port arrangement has groups of ports defined therethrough along its circumference for respective connection to the printhead and a respective ink supply. Each port group is aligned with a portion of a respective channel. The selection device selectively rotates the shaft to establish interconnection between the ports of each port group via the respective channels to allow ink flow therebetween for each of the ink flow channels.11-17-2011
20110032315INK ABSORBING PARTICLE, MATERIAL SET FOR RECORDING AND RECORDING APPARATUS - Ink absorbing particle to absorb an ink includes a polymer. The ink absorbing particles in a TMA needle penetration have a minimum temperature Ts10b of from about 80° C. to about 150° C. at which a needle enters to a depth of 10 μm, a minimum temperature Ts100w of about 40° C. or lower at which a needle enters to a depth of 100 μm when an equivalent amount of water is absorbed, and a minimum temperature Ts400w of about 50° C. or higher at which a needle enters to a depth of 400 μm when an equivalent amount of water is absorbed.02-10-2011
20110285795PRINTING APPARATUS - A printing apparatus includes an overflow tube into which ink overflowed from a buffer tank flows, an overflow tank to which the overflow tube is connected, a drain tank to which ink is drained from the overflow tank, and an atmosphere communication port provided to the drain tank. The buffer tank communicates with the atmosphere through the atmosphere communication port.11-24-2011
20120105555FLUID CONTAINER HAVING MIXING CHAMBERS FOR MICRO-FLUID APPLICATIONS - A consumable supply item for an imaging device holds an initial or refillable volume of pigmented ink. Its housing defines an interior and exterior. The interior retains the ink and an exit port supplies it to an imaging device. Users orient the housing to deplete the ink in a direction of gravity toward a bottom surface of the interior en route to the exit port. The ink passes through a mixing chamber having inlet ports arranged to restrict to multiple different heights the entrance of the volume of ink from the interior. As ink draws from various heights into the chamber, sediments in the pigment mix together. The design overcomes settling. It also avoids mechanical stirring and other complex mixing techniques. Further embodiments include chamber shapes, configuration of inlet ports, and construction of the supply item, to name a few.05-03-2012
20120098900DISPENSING LIQUID USING OVERLAPPING OUTLET/RETURN DISPENSER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. The first wall includes a surface. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall that is positioned opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall in and is fluid communication with the liquid supply channel. A liquid return passage is provided that extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage overlaps the outlet opening of the liquid dispensing channel as viewed from a direction perpendicular to the surface of the first wall of the liquid dispensing channel. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the liquid return passage. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.04-26-2012
20120098899DISPENSING LIQUID USING DISPENSER WITH RETURN FILTER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall that is positioned opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall and is in fluid communication with the liquid supply channel. The liquid supply passage includes a porous member. A liquid return passage is provided that extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage includes a porous member. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the liquid return passage. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.04-26-2012
20110292136MAINTENANCE DEVICE, FLUID EJECTING APPARATUS AND MAINTENANCE METHOD - A printer includes a fluid ejecting head having a plurality of nozzles, an ink supply channel and a maintenance device. The maintenance device includes a pressure regulating mechanism configured to reduce the pressures in the interiors of the ink supply channels at a position of pressure reduction, and a tight cap being brought into abutment with the fluid ejecting head so that the nozzle openings of the nozzles which receives a supply of ink through flow channels which are subject to relatively small pressure losses first by priority according to the magnitudes of the pressure losses in the respective flow channels extending from the position of pressure reduction to the respective nozzles.12-01-2011
20090179972LIQUID SUPPLYING METHOD, LIQUID SUPPLYING SYSTEM, AND LIQUID EJECTING APPARATUS - In a case where the depressurizer is driven so as to enable removal of any of the liquid containers for replacement in a state where the pressurized fluid is supplied through the pressurized-fluid passage to the individual liquid containers, the control section controls the individual open or closed states of the pressurization passage valve corresponding to a to-be-replaced liquid container that is to be removed for replacement and the pressurization passage valve corresponding to a remaining liquid container that continues to be used to become opposite to each other.07-16-2009
20090290001Ink bag adapter, adapter-equipped ink bag, and printing apparatus - To position a storage medium simply/reliably. An ink bag unit is structured so as to be attachable to and detachable from a tray. When ink runs out, a new ink bag unit can be used by being mounted on the tray. An adapter portion holds a storage device that stores data regarding the ink. The adapter portion is inserted into an adapter insertion portion of the tray, whereby a position of the storage device in the ink cartridge is definitely determined. As described above, with regard to the ink cartridge, the tray can be used as a piece of equipment of a printing apparatus over and over again, and the ink bag unit can be distributed as a consumable article. Further, because the storage device is mounted to the adapter portion, connection between the printing apparatus and the storage device can be achieved reliably and easily when the ink cartridge is mounted to the printing apparatus.11-26-2009
20110267406Liquid Delivery For A Printhead - In one embodiment, a system for delivering liquid to a printhead at a first elevation. The system includes a reservoir to hold liquid at a second elevation, which is below the first elevation. A pump delivers liquid from the reservoir to the printhead through a first line. A bypass valve diverts liquid from the first line when a pressure in the first line exceeds a predefined pressure. A vent coupled to the printhead at or above the first elevation vents the printhead to atmospheric pressure when the pump is off.11-03-2011
20090153630LIQUID SUPPLY DEVICE AND LIQUID EJECTING APPARATUS - A liquid supply device includes a liquid supply path for supplying liquid from an upstream side toward a downstream side where the liquid is consumed. A negative pressure chamber communicates with a decompression chamber through a communication hole and decompresses the decompression chamber. A communication hole valve body opens and closes the communication hole. A biasing member biases the valve body in a direction in which the valve body is always in a closed state. A flexible member forms a part of a wall surface of the negative pressure chamber and is displaced by a change in pressure within the negative pressure chamber. A communication hole valve body pressure member is displaced by the displacement of the flexible member to thereby press the valve body in a direction in which the valve body is in an open state against a biasing force of the biasing member.06-18-2009
20090153629LIQUID SUPPLYING DEVICE AND LIQUID EJECTING APPARATUS - A liquid supplying device includes a liquid supplying flow path for supplying liquid from an upstream side toward a downstream side on which the liquid is consumed. A pump is driven for a pumping operation in accordance with displacement of a displacement member constituting a part of an inner wall of a pump chamber as a part of the liquid supplying flow path for changing the volume of the pump chamber. A detecting unit detects the remaining amount of the liquid of the liquid supplying source. The liquid supplying source is configured such that the volume of a liquid housing part as a closed space housing the liquid changes in accordance with the remaining amount of the liquid, and the detecting unit detects a liquid-end state in which the none of the liquid inside the liquid housing part remains based on the amount of displacement of the displacement member.06-18-2009
20090153628LIQUID SUPPLYING DEVICE AND LIQUID EJECTING APPARATUS - A liquid supplying device includes a liquid supplying flow path that supplies a liquid from an upstream side as a liquid supplying source side toward a downstream side on which the liquid is consumed, a pump that is driven for changing the volume of a pump chamber that is a part of the liquid supplying flow path, and a flow velocity reducing unit that reduces the flow velocity of the liquid passing through the liquid supplying flow path on the upstream side of the pump chamber by changing flow path resistance of the liquid supplying flow path in accordance with the speed of change of the volume of the pump chamber, in a case where the pump is driven for a suction operation that increases the volume of the pump chamber.06-18-2009
20090051741PRINT HEAD HAVING EXTENDED SURFACE ELEMENTS - Embodiments include forming internal or external extended surface elements on a print-head substrate, at least in part, using a light beam.02-26-2009
20090147061PAGEWIDTH INKJET PRINTER CARTRIDGE WITH A REFILL PORT - A printer cartridge for an inkjet printer comprises a body configured for user insertion in, and removal from, a printer; a pagewidth printhead, incorporated with the body, and having an array of nozzles for ejecting different printing fluids onto a media substrate, each of the nozzles being dedicated to one of the different printing fluids only; a plurality of printing fluid reservoirs in the body for storing each of the different printing fluids separately, each of the plurality of printing fluid reservoirs being in fluid communication with the nozzles of the array that correspond to its printing fluid; and a refill port on the body, the refill port having a plurality of inlets, each of the inlets being in fluid communication with one of the printing fluid reservoirs only; such that, each of the printing fluid reservoirs can be individually refilled to replace printing fluid ejected by the pagewidth printhead. Each of the printing fluid reservoirs has a flexible membrane that has an expanded configuration when the printing fluid reservoir is full and a collapsed configuration when the printing fluid reservoir is ink depleted such that the printing fluid reservoir defines an internal volume containing printing fluid only, and during printing, the refill port is closed and disengaged from any source of refill printing fluid.06-11-2009
20090147060LIQUID SUPPLY APPARATUS AND LIQUID EJECTING APPARATUS - Provided is a liquid supply apparatus including: a liquid supply path which supplies a liquid from an upstream side, which is a liquid supply source, to a downstream side in which the liquid is consumed; a defoaming chamber which is provided in the liquid supply path and defoams air bubbles included in the liquid; and a depressurization chamber which is provided at a position adjacent to the defoaming chamber with a partition wall interposed therebetween and is depressurized such that the pressure thereof becomes lower than the pressure of the defoaming chamber, wherein the partition wall allows permeation of gas by the depressurization of the depressurization chamber and restricts permeation of the liquid, wherein the partition wall has rigidity, and wherein the defoaming chamber is arranged in plurality and at least two of the defoaming chambers overlap with one depressurization chamber in an upper and lower direction.06-11-2009
20090147059THREE-COMPONENT PISTONLESS FLUID CAPACITOR - A device and method for storing pressure-regulated fluid for a printer is disclosed. The pistonless, pressure-regulated storage device for fluid has three main components: a sealing cap, a mounting base, and a flexible membrane positioned between the sealing cap and the mounting base. The sealing cap has an inlet and an outlet for fluid flow. A pressure sensing device is positioned to monitor the pressure in the fluid storage device. The mounting base has a chamber formed therein and the membrane is positioned over the chamber. The membrane is flexible and configured to conform to the shape of the chamber when the membrane retains fluid, such as ink, from a reservoir. The membrane accumulates fluid until a pressure sensor alerts the pump that the maximum capacity has been reached. When pressure within the storage device falls, such as when downstream demand for ink begins or increases, the pump is signaled to begin filling the storage device.06-11-2009
20080266368INK SUPPLY ASSEMBLY FOR AN INKJET PRINTHEAD ARRANGEMENT - Provided is an ink supply assembly for an inkjet printhead arrangement. The assembly includes an elongate extrusion defining a number of distribution channels for distributing ink to a printhead via an end cap operatively fitted to the extrusion. The end cap includes an upper plate and a lower plate hingedly linked by means of a spine. The end cap also includes a plurality of plugs defined on the spine to plug said distribution channels when the cap is fitted to the extrusion. The printhead assembly includes ink reservoirs and an air pump linked to the channels via delivery hoses and apertures defined in the upper plate.10-30-2008
20090309939LIQUID EJECTION HEAD, RECORDING APPARATUS HAVING THE SAME, AND RECORDING METHOD - A liquid ejection head includes at least one liquid ejecting substrate for ejecting liquid, a supporting member for supporting the at least one liquid ejecting substrate, the at least one liquid ejecting substrate being fixed to a main surface of the supporting member, and a plurality of liquid supplying members for supplying liquid to the at least one liquid ejecting substrate through the supporting member. A linear expansivity of each of the liquid supplying members is different from a linear expansivity of the supporting member. The plurality of the liquid supplying members are arranged along a longitudinal direction of the supporting member, with each of the liquid supplying members being bonded to a surface that is opposite the main surface of the supporting member.12-17-2009
20100128094Print Engine With A Refillable Printer Cartridge And Ink Refill Port - A print engine for a printhead assembly includes a refillable cartridge having a body defining a plurality of fluid chambers, the body having a lid assembly with a plurality of ink refill ports leading to respective fluid chambers, the lid assembly having an actuator to actuate a refill unit; a number of micro-electromechanical nozzle arrangements configured to operatively eject printing fluid onto a printing medium; and a fluid distribution member operatively arranging the nozzle arrangements in fluid communication with respective fluid chambers. The lid assembly engages with the refill unit to actuate the refill unit. The refill unit includes an outlet adapted to engage with the plurality of ink refill ports, a fluid reservoir, and an ejector assembly configured to incrementally eject fluid from the reservoir when the ejector assembly is actuated by the actuator during operative engagement of the print cartridge by the lid assembly. Each fluid chamber includes a stack of polymer layers with a micro-capillary array of channels formed therein to form an absorbent assembly within the fluid chamber.05-27-2010
20120033021RESIN COMPOSITION FOR INK SUPPLY TUBES AND INK SUPPLY TUBE - Provided is a resin composition which is a material for ink supply tubes and which has excellent moisture barrier performance, air barrier performance, and kink resistance. The resin composition contains a thermoplastic elastomer (A) containing a (b)-(a)-(b)-type isobutylene triblock copolymer containing polymer blocks (a) having isobutylene units and polymer blocks (b) having styrene units and also contains a lubricant (B). The content of the thermoplastic elastomer (A) in the resin composition is 70% to 95% by mass. The content of the lubricant (B) in the resin composition is 5% to 15% by mass. The content of the (b)-(a)-(b)-type isobutylene triblock copolymer in the resin composition is 50% to 95% by mass. The content of the polymer blocks (a) in the (b)-(a)-(b)-type isobutylene triblock copolymer is 80% to 90% by mass. The content of the polymer blocks (b) in the (b)-(a)-(b)-type isobutylene triblock copolymer is 10% to 20% by mass.02-09-2012
20090051743PRINTHEAD INCORPORATING A STATIC PAGEWIDTH PRINTHEAD AND ELONGATE FLUID CHANNEL - A printhead assembly comprises an elongate casing defining a longitudinally extending printhead channel, a static pagewidth printhead received within the printhead channel, the static pagewidth printhead comprising a plurality of printhead tiles each bearing a printhead integrated circuit, the tiles being shaped to serially engage together so that adjacent printhead integrated circuits overlap, and an elongate fluid channel member defining a plurality of ducts for storing respective types of ink, the elongate fluid channel extending substantially the length of the static pagewidth printhead. The fluid channel member comprises an elongate body portion defining parallel open channels, and a lid portion which is fastened to the body portion so that the open channels form the ducts, the lid portion defining a plurality of protruding ridges which can be received in respective open channels. The lid portion comprises a plurality of groups of outlet ports, each group including a number of outlet ports equal to the number of parallel open channels.02-26-2009
20100079559Fluid Circulation System - Various apparatus and methods are disclosed in which fluid is circulated across one or more print heads.04-01-2010
20090207216LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS INCORPORATING THE SAME - A liquid ejecting head includes: a reservoir provided along a direction, the reservoir including a first area and a second area of a width smaller than that of the first area in a direction perpendicular to the direction in which the pressure generating chambers are parallelly-arranged; and compliance member provided in an area corresponding to the reservoir. The compliance member includes a first compliance section formed at one of the upper and lower surface sides of the reservoir and a second compliance section formed at the other of the upper and lower surface sides of the reservoir. The first compliance section is formed at an area corresponding to both the first area and the second area of the reservoir, and the second compliance section is not formed in at least an area corresponding to a part of the first area.08-20-2009
20100079560VARIABLE RATE FUSER RELEASE FLUID APPLICATION - According to various illustrative embodiments, an apparatus, method, and system for variable rate fuser release fluid application are described. In one aspect, the apparatus comprises a supply of release agent material. The apparatus also comprises a release agent metering roller supported for contact with the supply of the release agent material. The apparatus also comprises a variable speed drive arranged to effect movement of the release agent metering roller in an endless path at different surface velocities. The apparatus also comprises a donor roller supported in contact with the release agent metering roller and a fuser roller of a contact fuser, the donor roller arranged to convey release agent material from the release agent metering roller to the fuser roller at various rates depending on a surface velocity of the release agent metering roller, wherein the variable speed drive is operative independently of the fuser roller.04-01-2010
20100079561VARIABLE RATE FLUID FILM RELEASE IN AN INK JET PRINTER - An apparatus for ink jet printing, as well as corresponding method and system are described. The apparatus includes a source of fluid film, a fluid film metering roller supported for contact with the source of fluid film, a variable speed drive arranged to effect movement of the fluid film metering roller in an endless path at different surface velocities, a donor roller supported in contact with the fluid film metering roller, an ink jet printhead configured to emit ink, and a print assembly rotatably supported in the apparatus, the print assembly having a print assembly surface coupled to the donor roller, the print assembly configured to receive ink from the ink jet printhead and produce an image on media using the ink, wherein the donor roller is configured to convey the fluid film from the fluid film metering roller to the print assembly surface at various rates depending on a surface velocity of the fluid film metering roller, and at least one of the following: an amount of fluid film left on the donor roller, a film thickness of the fluid film on the fluid film metering roller, and a speed ratio between the fluid film metering roller and the donor roller, wherein the variable speed drive is operative independently of the print assembly.04-01-2010
20110122207INK-JET HEAD - An ink-jet head is disclosed. The ink-jet head in accordance with an embodiment of the present invention is equipped with a plurality of jetting cells, each of which ejects ink. Each of the plurality of jetting cells is connected to a common reservoir supplying the ink, and a pillar is formed inside the common reservoir, in which the pillar supports an upper surface of the common reservoir by being extended from a lower surface to the upper surface of the common reservoir and the pillar disperses a pressure wave transferred inside the common reservoir.05-26-2011
20130021415Ink Delivery Agitation System - An ink delivery system is disclosed. The ink delivery system includes one or more subtanks to store ink and an agitation system coupled to each of the one or more subtanks to vibrate a subtank to prevent ink particles from settling in the subtank.01-24-2013
20090189961LIQUID TRANSFER DEVICE AND MANUFACTURING METHOD THEREOF - A liquid transfer device of the present invention includes a passage unit, an energy supplier, and a supporter. In the passage unit, a common liquid chamber and a plurality of individual passages branching off from the common liquid chamber are formed. Such a passage unit includes a plurality of plates which are laminated on one another and include a first plate having a hole constituting the common liquid chamber and a second plate. The energy supplier supplies, to liquid in the individual passages, energy for transferring the liquid. The supporter projects inwardly from a side wall defining the hole formed on the first plate, and is continuous from one end to the other end of the common liquid chamber in a laminating direction of the plates so as to support the second plate in the laminating direction.07-30-2009
20090096845PRINT HEAD DIE SLOT RIBS - Methods and an apparatus are disclosed, wherein a print head die includes a slot and ribs across the slot. The ribs are recessed from one or both sides of the die.04-16-2009
20090284572LIQUID FEEDING MEMBER FOR LIQUID EJECTION HEAD, LIQUID EJECTION DEVICE, AND IMAGE FORMING APPARATUS - A liquid ejection device ejects liquid droplets from a liquid ejection head. The liquid ejection device includes a liquid feeding member that feeds liquid to the liquid ejection head. The liquid feeding member is connected to a liquid ejection head to feed liquid to a common liquid chamber of the liquid ejection head, which liquid ejection head includes the common liquid chamber that supplies the liquid to plural individual liquid chambers communicating with plural nozzles that eject liquid droplets. The liquid feeding member includes a liquid circulation path through which the liquid circulates in a direction parallel to a direction in which the nozzles of the liquid ejection head are aligned.11-19-2009
20080211886Ink refill unit with a working outlet and other dummy outlets - An ink refill unit is provided for refilling a printer ink cartridge unit. The ink refill unit includes a base assembly which houses internal ink refilling components and defines a plurality of outlets for docking with the cartridge unit. Each outlet corresponds to a respective type of ink with only one of the outlets working. The ink refilling components include a syringe assembly coupled in fluid communication with the working outlet. A lid assembly fits onto the base assembly to cover the ink refilling components.09-04-2008
20080211888Ink Storage Compartment With Bypass Fluid Path Structures - The present invention relates to an ink storage compartment. The compartment includes a reservoir structure, in turn, defining a plurality of ink reservoirs from which respective ink outlets extend. Ink absorbent material is provided within respective ink reservoirs. Bypass fluid path structures extend between respective ink outlets and ink reservoirs so that, when filling the ink storage compartment by supplying ink to the ink outlets, ink can be supplied to the ink reservoirs through both the ink outlets and bypass fluid path structures.09-04-2008
20080211885FLUID DISTRIBUTION STACK - A fluid distribution stack (09-04-2008
20090278900INK JET PRINTING APPARATUS AND INK TANK FOR THE SAME - In an intermittent ink supplying system, an ink supply base 11-12-2009
20110199438LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - Even if a bubble, which has a circular cross-section during its flowing whose diameter is longer than the short-axis length and shorter than the long-axis length of an oval shape that corresponds to the shape of an opening in a supply opening, reaches the supply opening, a gap occurs between the supply opening and the bubble, and thus the supply opening is not completely covered.08-18-2011
20100201759DISCHARGING DEVICE AND PRINTING APPARATUS - A discharging device includes a liquid container configured to contain a liquid, a discharge channel configured to discharge a fluid from the liquid container, a float member which is lower in specific gravity than the liquid, is movably arranged in the discharge channel, and move up together with the liquid to come into contact with a float sealing member arranged in the discharge channel, thereby shutting the discharge channel, separating means configured to separate the float member from the float sealing member, suction means configured to discharge the fluid from the liquid container via the discharge channel, and control means configured to operate the separating means when operating the suction means.08-12-2010
20090290000CAVITY PLATE - Among other things, a cavity plate for use in ink jetting includes an outlet end. Elongated lands extend from the outlet end toward an inlet end of the cavity plate. The elongated lands have side walls between top and bottom surfaces of the cavity plate to form elongated cavities. There are structural supports upstream of the ink outlets and between the elongated lands, to support the elongated lands.11-26-2009
20090290002LIQUID EJECTING DEVICE AND IMAGE FORMING APPARATUS - Disclosed is a liquid ejecting device including a liquid ejecting head including a liquid ejecting nozzle, a head tank configured to store liquid to be fed to the liquid ejecting head, a liquid storing container configured to store liquid to be fed to the head tank, a first liquid sending device configured to send liquid from the liquid storing container to the head tank, a pressure adjusting tank configured to store liquid suctioned from the liquid ejecting head, and a second liquid sending device configured to send liquid from the liquid ejecting head to the pressure adjusting tank, wherein the head tank includes a liquid receiving port configured to receive liquid from the liquid storing container via a liquid receiving valve being opened at a predetermined or less pressure and a liquid feeding port configured to feed liquid to the liquid ejecting head and the liquid ejecting head includes a liquid inflow port communicating with the liquid feeding port and a liquid outflow port communicating with the pressure adjusting tank via the second liquid sending device.11-26-2009
20090102897Liquid Contanier - A liquid container for supplying a liquid to a liquid jetting apparatus includes a liquid reservoir section and a sensor. The liquid reservoir section stores electrically conductive liquid. The sensor is disposed at a location in the liquid reservoir section, for electrically detecting a condition of the conductive liquid at the location. A fixed potential is applied to the conductive liquid.04-23-2009
20090295882LIQUID EJECTING HEAD UNIT AND METHOD OF MANUFACTURING THE SAME - A liquid ejecting head unit is provided with a plurality of liquid ejecting heads which each have a nozzle row in which a plurality of nozzle openings are arranged and a liquid passage port to which an inner flow passage opens and an outer flow passage is connected. The liquid ejecting head unit includes: first flow passage members which are each provided with a first flow passage supplying a liquid to the liquid passage port of each of the plurality of liquid ejecting heads; second flow passage members which are each provided with a second flow passage supplying the liquid to the first flow passage; and a switching member which is provided between the first and second flow passages and allows the plurality of first flow passages to communicate with the plurality of second flow passages in a predetermined communication relation.12-03-2009
20090295881PRINTER, INK CIRCULATION METHOD AND INITIAL INK INSTALLATION METHOD - A printer comprises a head having a plurality of outlets, a first ink tank connected to the head and a second ink tank storing ink, and the second ink tank is connected to the first ink tank via a supply line and connected to the head via a return line. The supply line is provided with a pump for supplying the first ink tank with ink stored in the second ink tank. A main decompressor connected to the second ink tank decompresses the inside of the second ink tank to a negative pressure and ink is returned from the first ink tank to the second ink tank through a passage leading from the first ink tank to the second ink tank via the head. This allows an appropriate circulation of ink while degassing the ink in the second ink tank.12-03-2009
20100277553INKJET PRINTER WITH INK SUPPLY CONFIGURABLE FOR BOTH PRINTING AND PURGING - A printer includes an inkjet printhead and an ink supply system. The ink supply system includes: an ink reservoir for storing ink, the ink reservoir being contained in a pressurizable chamber; an ink conduit providing fluid communication between the ink reservoir and the printhead; an air compressor for positively pressurizing the chamber; and a valve in the ink conduit for controlling a supply of ink to the printhead.11-04-2010
20110199440LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes, a plurality of liquid ejecting sections ejecting liquid, and a liquid supplying flow path. In the device, an upstream side of the liquid supplying flow path is coupled to the liquid supplying source while a downstream side of the liquid supplying flow path branches into a plurality of flow paths at a branch point and each of the plurality of flow paths is coupled to one of the liquid ejecting sections. In the liquid supplying flow path, an average flow path resistance value of a flow path upstream of the branch point serving as a reference is smaller than an average flow path resistance value of a flow path having the smallest average flow path resistance value among average flow path resistance values of flow paths downstream of the branch point serving as the reference.08-18-2011
20110199439INTER-TERMINAL CONNECTION STRUCTURE, LIQUID STORAGE CONTAINER, AND METHOD OF ASSEMBLING LIQUID STORAGE CONTAINER - An inter-terminal connection structure includes: a first terminal; a second terminal which is separated from the first terminal; a first connection member which is in contact with the first terminal; a second connection member which includes a coil portion, a first arm portion extending from one end of the coil portion to be in contact with the second terminal, a second arm portion extending from the other end of the coil portion to be in contact with the first connection member; a container main body which has a bottom face and a side face on which the second terminal is mounted; and a positioning member which includes a first protruding portion to be inserted into the coil portion of the second connection member, and a second protruding portion which determines a relative angle between the first and second arm portions.08-18-2011
20120194619INK MIXING SYSTEM - An ink system of an ink jet printer includes a fluid tank. The fluid tank includes a generally conically shaped side wall, the side wall sloping inwardly from a top portion to a bottom portion. A bottom surface is disposed adjacent the bottom portion of the side wall. A first fluid conduit is disposed in the fluid tank and includes an opening adjacent to and above the bottom surface of the fluid tank. A second fluid conduit is disposed in the fluid tank and includes an opening at a location above the opening of the first fluid conduit. A pump is in fluid communication with the first fluid conduit and the second fluid conduit. An ink supply line is in fluid communication with the pump. A print head is in fluid communication with the ink supply line.08-02-2012
20110199442DISCHARGE DEVICE - The back pressure of an ink tank is controlled. A porous body is arranged inside the ink tank, the lower end of the porous body contacts an ink, and the ink ascends inside the porous body due to a capillary force. The upper end of the porous body is not immersed in the ink, and a maximum ascending force acts upon the ink stored in the ink tank. Therefore, the ink does not leak from a discharge head located lower than the ink tank. Further, because the ink is accumulated under the porous body and the amount of the ink contacting the porous body is small, components of the ink are less susceptible to deterioration.08-18-2011
20110205316FLUID EJECTING APPARATUS - At a transport pathway which transports recording paper, a passage flow path which can pass the recording paper and gas from the upstream side toward the downstream side in a transport direction is provided and also a reversing flow path portion which reverses the recording paper by passing the recording paper while twisting and rotating the recording paper with an axis line extending in the transport direction as a rotation center is provided at the passage flow path.08-25-2011
20080239030Cradle Unit For Receiving A Print Cartridge To Form A Print Engine - Provided is a cradle unit for receiving a print cartridge to form a print engine. The cradle unit includes a main body defining an opening for receiving said cartridge, the main body having a frame structure including end plates with drive and exit rollers mounted therebetween. The cradle unit also includes a printed circuit board (PCB) pivotally mounted between the end plates for housing control electronics for controlling the operation of the print engine, and a cover assembly for securing said cartridge in the opening. The cover assembly is pivotally mounted between the end plates, with the cover assembly configured to pivot the PCB into electrical contact with a printhead controller on the cartridge when in a closed position, and to pivot the PCB out of electrical connection with said printhead controller when in an open position. Also included is a maintenance drive assembly having a motor operatively connected to a maintenance gear and maintenance actuator arrangement and to a wiper gear and wiper actuator arrangement, the maintenance drive assembly operated by the control electronics.10-02-2008
20080239028LIQUID-DROP EJECTING APPARATUS AND LIQUID CARTRIDGE - A liquid-drop ejecting apparatus comprises: a liquid-drop ejection head; a first tank; a second tank; and a negative pressure generation unit. The first tank includes: a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head; a gas chamber formed above the liquid storage chamber in a first direction; a communication hole connecting the liquid storage chamber and the gas chamber; a gas-permeable membrane affixed to an inner surface of the gas chamber so as to cover the communication hole; and a first groove formed on the inner surface of the gas chamber so as to surround an area where the gas-permeable membrane is affixed. The second tank is for storing therein a liquid to be supplied to the liquid storage chamber in the first tank. The negative pressure generation unit which is configured to generate a negative pressure in the gas chamber.10-02-2008
20080239027DROPLET JETTING APPLICATOR AND METHOD FOR MANUFACTURING COATED BODY - Provided is a droplet jetting applicator including: a droplet jetting head configured to jet liquid supplied from a liquid storage unit; a liquid supply unit configured to supply the liquid from the liquid storage unit to the droplet jetting head through a liquid supply channel; a first buffer liquid reservoir positioned closer to the droplet jetting head than the liquid supply unit in the liquid supply channel, and formed so that the inflow liquid drops thereinto; a liquid return unit configured to return the liquid from the droplet jetting head to one of the liquid storage unit and the first buffer liquid reservoir through a liquid return channel; and a second buffer liquid reservoir positioned closer to the droplet jetting head than the liquid return unit in the liquid return channel, and formed so that the inflow liquid drops thereinto.10-02-2008
20090002463PERFORATED FLUID FLOW DEVICE FOR PRINTING SYSTEM - A printing system includes a liquid drop ejector operable to eject liquid drops having a plurality of volumes along a first path. A fluid passage includes a wall with the wall including a perforated portion. A fluid flow source is operable to cause the fluid to flow through the passage along the perforated portion of the wall. Interaction of the fluid flow and the liquid drops causes liquids drops having one of the plurality of volumes to begin moving along a second path.01-01-2009
20100128093Liquid Jetting Apparatus - A liquid jetting apparatus includes a liquid jetting head which reciprocates in a first direction along a first plane and jets a liquid, liquid supply sources which stores the liquid, a plurality of flexible tubes each of which constructs a part of a liquid flow passage from one of the liquid supply sources to the liquid jetting head, which are fixed to the liquid jetting apparatus at predetermined fixed portions which are different from connecting portions of the tubes at which the tubes are connected to the liquid jetting head respectively, and which are arranged in a state that the tubes are bent and twisted at portions between the connecting portions and the fixed portions, respectively; and a regulating member which is arranged to regulate movement of the tubes caused by bending of the tubes and which has a facing surface facing the tubes.05-27-2010
20090051744PRINTHEAD ASSEMBLY HAVING AN ENCASED PRINTHEAD MODULE - A printhead assembly has a casing. A printhead module is positioned in the casing. The printhead module and the casing are configured so that the printhead module is removable from the casing. The printhead module includes a fluid channel member defining a number of ink ducts along its length and positioned in the casing. A number of printhead tiles are arranged on the fluid channel member. Each printhead tile has a printhead integrated circuit. The printhead tiles and the fluid channel member are configured so that ink can be supplied to the printhead integrated circuits from the fluid channel member.02-26-2009
20090167825MOVEMENT APPARATUS AND IMAGE RECORDING APPARATUS - There is disclosed a movement apparatus including a movable body, a flexible long member, a support member, and a tubular member. The movable body reciprocates along a straight line. The long member has having two opposite ends a first one of which is fixed to the movable body and a second one of which is fixed to a stationary member. The form of the long member changes in accordance with a reciprocating movement of the movable body along the straight line and relative to the stationary member. The support member has a linear material portion at which the support member supports the long member. The tubular member is fitted on the linear material portion.07-02-2009
20080273065Inkjet Printer Having An Ink Cartridge Unit Configured To Facilitate Flow Of Ink Therefrom - Provided is an inkjet printer having an ink cartridge unit. The cartridge unit includes a main body defining a number of ink reservoirs. Each reservoir has a layered stack of absorbent material arranged to form a micro-capillary array for suspending ink inside said reservoir. A base of each ink storage reservoir is provided with a raised portion which surrounds an ink outlet. The raised portions are molded into the main body to separate each outlet from the base of the ink storage reservoir to facilitate a sufficient flow rate of ink from the reservoir. The cartridge unit also includes a lid assembly covering the main body to seal ink inside the ink reservoirs, as well as a printhead assembly operatively fed with ink via the ink outlets from the ink reservoirs in the main body for printing onto a printing medium.11-06-2008
20080273064INK-FEEDING DEVICE AND PRESSURE-GENERATING METHOD - An ink-feeding device is provided in which the pressure applied to the ink in the printing head can be adjusted arbitrarily irrespective of the relative positions of the ink container and the printing head. Inside the sub-tank 11-06-2008
20080273063System and Method for Supplying an Ink to a Reciprocating Printhead in an Inkject Apparatus - An ink system for use in an inkjet printing apparatus includes an inkjet printhead, a supply subtank for containing a supply of an ink to the inkjet printhead, and a return subtank for containing a surplus of the ink not used by the inkjet printhead. A first fluid path couples the supply subtank with the inkjet printhead and with the return subtank, and provides a flow of ink from the supply subtank to the inkjet printhead and to the return subtank. A second fluid path couples the return subtank with the supply subtank and feeds the ink from the return subtank back to the supply subtank. The ink system is characterised by having the supply subtank, the return subtank and the first fluid path supported on a carriage for reciprocating together with the inkjet printhead across the printing medium.11-06-2008
20080278553INK REFILL UNIT WITH CONTROLLED INCREMENTAL INK EJECTION FOR PRINT CARTRIDGE - An ink refill unit for a print cartridge is provided. The unit includes a housing which defines a fluid path in fluid communication with an outlet. The unit also includes an ink reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly configured to incrementally eject ink from the reservoir when the assembly is actuated by the print cartridge. The ejector assembly includes a piston and cylinder ink reservoir. The piston has a thread which engages a screw thread in an internal wall of the cylinder and is piston rotationally biased by a wound spring and the ejector having a pawl-and-ratchet detent preventing the biased piston threading into the reservoir until the pawl is actuated by the print cartridge.11-13-2008
20080284828Ink ejection system with separated ink tank and printing head - An ink ejection system with a print head and an ink priming station is provided. The ink reservoir of the print head has a plurality of ink channels, a plurality of ball valves, a plurality of storing areas, and a plurality of priming holes. Each of the ball valves is located at an outlet of the respective ink channel and has a floating ball. The plurality of storing areas is aligned to the plurality of ink channels respectively for storing ink of different colors. The plurality of priming holes, which are located on a surface of the ink reservoir, is connected with the respective storing areas for balancing air pressure between interior of the ink reservoir and environment. As ink in the storing area excesses a predetermined height, the respective floating ball closes the respective ball valve to stop injecting ink to the respective storing area. The ink priming station has an air cover linked to a pump. As the print head is stationed on the ink priming station, the air cover covers the priming holes to have the interior of the ink reservoir showing negative pressure.11-20-2008
20080291249Ink recharging system for ink cartridge, bulk ink cartridge used in said system, and ink recharging method using them - The present invention relates to an ink recharging system in which the ink can be recharged into a used ink cartridge repeatedly, a bulk ink cartridge used in the system, and a method for recharging the ink into the ink cartridge using them. The ink recharging system for the ink cartridge installed in an inkjet printer comprises a compressor and a positive pressure tank for providing the compression force to supply the ink stored in the quantitative ink supply cylinder to the ink cartridge, a charging cylinder for applying the compression force and the suction force to the quantitative ink supply cylinder, automatic quantitative position control means for measuring the movement displacement of the charging cylinder, a vacuum pump and a negative pressure tank for producing a vacuum in the ink cartridge, and a compressed air supply tube diverged and connected to the inlet and outlet of the charging cylinder from the positive pressure tank via the solenoid valve for air pressure. The present invention provides a recharging system for the ink cartridge and a method for recharging the ink cartridge, in which the remaining air or ink in the recycled ink cartridge can be easily discharged and vacuum degree of the ink cartridge can be precisely controlled by the control means for the quantitative position, to thereby charge the quantitative ink into the recycled ink cartridge rapidly and accurately, and relates to a bulk ink cartridge which can prevent wrong installment with simple identifying members.11-27-2008
20080303878INK PRIMING ARRANGEMENT FOR PRINTHEAD HAVING PICOLITRE INK EJECTION - An ink priming arrangement for an inkjet printhead is provided which has an ink bag containing ink for distribution to nozzles of the printhead via a fluid path between the ink bag and nozzles, a force applicator arranged to apply inwardly directed force on at least one exterior wall of the ink bag to reduce an available fluid volume of the ink bag, thereby causing ink to flow from the ink bag to the nozzles along the fluid path, and a biasing member arranged in the ink bag to apply outwardly directed force on at least one interior wall of the ink bag so as to restrain the reduction of available fluid volume of the ink bag. The biasing member applies the outward force only once the available fluid volume has been reduced to a predetermined volume. Each nozzle ejects an ink drop having a volume of about 1.2 picolitres.12-11-2008
20110205315Pressure damper, liquid jet head, and liquid jet apparatus - Provided is a pressure damper reducing pressure fluctuations of liquid and detecting the pressure fluctuations of the liquid. The pressure damper (08-25-2011
20080273066Ink jet recording apparatus - An ink jet recording apparatus comprising a color ink container having a capacity V1 accommodating therein a solvent polymerizable in the presence of an acid and a colorant, a reaction liquid container having a capacity V2 (V211-06-2008
20080266366WASTE INK COLLECTION SYSTEM - An ink collection system includes at least one target surface and a fluid supply system in communication with the at least one target surface. The fluid supply system is configured to create a film of fluid across at least a portion of the at least one target surface, and wherein the film of fluid flushes away ink that impinges on the at least one target surface.10-30-2008
20080278552INK JET RECORDING INK TANK - An ink jet recording ink tank includes: an ink retention member, which to hold ink exerts a negative pressure through capillary force; and ink, which is retained in the ink retention member, for which a dynamic surface tension in a lifetime of 50 msec, obtained by a maximum bubble pressure method, is higher than an interfacial tension of the ink retention member, a dynamic surface tension in a lifetime of 5000 msec is lower than the interfacial tension of the ink retention member, and a difference between the dynamic surface tension in the lifetime of 50 msec and the dynamic surface tension in the lifetime of 5000 msec is equal to or greater than 8 mN/m.11-13-2008
20090091606Flow Control In An Ink Pen - In one embodiment a pressure regulator for an ink pen includes: a diaphragm between a lower pressure region and a higher pressure region, the diaphragm movable toward the lower pressure region in response to an increase in a pressure difference across the diaphragm; a valve operative between an open position in which ink may flow into the lower pressure region and a closed position in which ink may not flow into the lower pressure region; a first lever rotatable on a first fulcrum in response to movement of the diaphragm toward the lower pressure region; and a second lever connected to the valve, the second lever rotatable on a second fulcrum in response to rotation of the first lever to move the valve from the closed position to an open position.04-09-2009
20080211884Liquid Feed Tube for Liquid Jetting Device and Liquid Jetting Device - A liquid feed tube for feeding a liquid from a liquid tank disposed on a liquid jetting device body side to a jetting head mounted on a reciprocating carriage, including: a long elastic member and a film member connected in an airtight state to the elastic member along a longitudinal direction of the elastic member; and a space part formed by the elastic member and the film member and used as a liquid feed passage, wherein the elastic member is made of a specific resin composition. Thus, the bending rigidity of the liquid feed tube can be lowered, and the resistance to moisture permeability and the gas barrier property thereof can be realized at low cost.09-04-2008
20080309737INK REFILL KIT CAPABLE OF EFFICIENTLY SIPHONING INK FROM AN INK BOTTLE - An ink refill kit for injecting ink into an ink cartridge includes an ink bottle and an injector. The ink bottle stores ink. The injector siphons the ink from the ink bottle and injects the ink into the ink cartridge. The ink bottle includes an opening, an inner bottom surface, and a single deepest portion. The opening allows the injector to pass therethrough. The inner bottom surface is provided on an inner bottom of the ink bottle. The single deepest portion is provided in the inner bottom surface opposite the opening and having a depth greater than that of the inner bottom surface.12-18-2008
20080278551 FLUID FLOW DEVICE AND PRINTING SYSTEM - A fluid flow device, a method of moving fluid, and a printing system incorporating the device are provided. The fluid flow device includes a passage for a fluid including a wall with the wall having a travel path. A fluid flow source is operable to cause the fluid to flow in a direction through the passage. The travel path of the wall is in the same direction as that of the fluid flow.11-13-2008
20080239026Printhead Carrier With Latching Devices - An imaging apparatus configured for mounting an ink supply cartridge includes a guide frame defining a main scan direction. A printhead carrier for mounting the ink supply cartridge is coupled to the guide frame. The printhead carrier includes a housing cradle. A first latch device is pivotably coupled at a first axis to a front portion of the housing cradle, the first latch device being rotatable between a first latched position and a first unlatched position. A second latch device is pivotably coupled at a second axis to a rear portion of the housing cradle, the second latch device being rotatable between a second latched position and a second unlatched position. The first latch device and the second latch device are configured to define a top opening for vertically receiving the ink supply cartridge between the first latch device and the second latch device.10-02-2008
20080284829PRINTHEAD ASSEMBLY HAVING A PRESSURISED AIR SUPPLY - Provided is a printhead assembly with a pressurised air supply having an elongate ink distribution arrangement that defines a number of inlets, a number of corresponding ink distribution channels and a number of outlets in fluid communication with respective ink distribution channels. The assembly also includes an elongate ink distribution assembly mounted on the ink distribution arrangement, the ink distribution assembly having a plurality of layers together forming a stack, the layers being configured to define a plurality of inlets in fluid communication with the outlets of the ink distribution arrangement and mounting formations with passages opening into the mounting formations, the passages being in the form of ink passage sets in fluid communication with respective ink distribution channels, at least one passage from each set opening into each mounting formation. Also included are printhead integrated circuits mounted in respective mounting formations to receive ink from the passages, and an air duct having a base defining a series of air passages. The assembly further includes an air valve molding formed as a channel with a series of apertures defined in a base thereof, a spacing of the apertures corresponding to the series of air passages, the air valve molding being movable longitudinally within the air duct to facilitate alignment of the apertures with the air passages to allow pressurized air through the laminated stack to the cavity, or moved out of alignment to close off a supply of pressurized air to the cavity.11-20-2008
20080259138APPARATUS FOR REGULATING AIR PRESSURE IN INK TANK AND INK-SUPPLYING SYSTEM HAVING THE SAME - The present invention relates to an apparatus (10-23-2008
20090179971PRINTHEAD MAINTENANCE FACILITY WITH INK STORAGE AND DRIVEN VACUUM DRAINAGE COUPLING - A inkjet printhead maintenance facility that has an ink storage reservoir for holding ink ejected from the inkjet printhead during a maintenance operation and, an outlet coupling in fluid communication with the ink storage reservoir and configured for connection to a vacuum source to draw ink out of the ink storage reservoir.07-16-2009
20110205317Heated Ink Delivery System - An ink umbilical provides different colors of heated ink to multiple print heads in an integrated structure. The ink umbilical includes a first plurality of ink carrying conduits mounted on one side of a heater and a second plurality of conduits mounted on a second side of the heater opposite the first side of the heater. The heater is operated to keep the ink in the conduits on each of the heater in a predetermined temperature range.08-25-2011
20090160915INK SUPPLYING APPARATUS, INKJET PRINTING APPARATUS, INKJET PRINTING HEAD, INK SUPPLYING METHOD AND INKJET PRINTING METHOD - An inkjet printing apparatus which can perform cost-down and an improvement on a print quality by simplification of an apparatus construction is realized. For realizing such an apparatus, a gas-liquid separation is achieved by the construction where air bubbles generated in an ejection portion or a reservoir can rise to a liquid surface, and a negative pressure control and at the same time, discharge of the air bubbles are performed by a fan.06-25-2009
20090179969PRINTER WITH ZERO INSERTION FORCE PRINTHEAD CARTRIDGE - An inkjet printer that has a printhead cartridge with a pagewidth printhead defining an array of nozzles for ejecting ink onto a media substrate. The printhead cartridge has a fluid coupling in fluid communication with the array of nozzles. The printer also has a cradle for supporting the printhead cartridge such that the array of nozzles is adjacent a media feed path extending through the printer, the cradle having a latch mechanism for retaining the printhead cartridge, an ink reservoir for containing supply of ink and a complementary coupling for fluid communication with the ink reservoir. The fluid coupling and the complementary coupling are configured to establish a sealed fluid connection using mechanical advantage provided by user actuation of the latch mechanism to retain the printhead cartridge in the cradle.07-16-2009
20090179967MULTIPLE CONDUIT FLUID COUPLING WITH LEAKAGE FLOW CONTROL - A fluid coupling for an inkjet printhead, that has an interface plate supporting a plurality of spouts positioned for sealed engagement with corresponding apertures in a complementary socket in order to establish fluid communication between an inkjet printhead and an ink supply. The interface plate has surface formations individually associated with each of the spouts respectively. The surface formations define a preferred flow path along the interface plate for any residual ink draining away from the spouts under gravity. The preferred flow paths are configured to avoid any of the other spouts.07-16-2009
20130120508INKJET RECORDING APPARATUS INCLUDING INK RECEIVING ASSEMBLY - An inkjet recording apparatus includes an inkjet head to horizontally eject ink droplets to print on a recording medium and an ink receiving assembly to receive ink droplets ejected for dummy ejection from the inkjet head. The ink receiving assembly includes a non-porous ink receiving plate and a collection tank. The ink receiving plate has a hydrophilic receiving face broader than an ejection range of the ink droplets ejected for dummy ejection. The receiving face is substantially vertically disposed to receive the ink droplets ejected for dummy ejection. The collection tank is disposed below the ink receiving plate to collect ink droplets received by and dropped from the ink receiving plate. Ad/stance between the inkjet head and the receiving face of the ink receiving plate is set to be shorter than a distance in which the ink droplets ejected from the inkjet head for dummy ejection turn into mist.05-16-2013
20130120509ELASTIC MEMBER FOR INKJET - An elastic member for inkjet includes a resin composition including at least a (b)-(a)-(b) type isobutylene-based triblock copolymer including an isobutylene-based polymer block (a) and a styrene-based polymer block (b), and a styrene-based polymer.05-16-2013
20110267407INK-JET HEAD AND INK-JET APPARATUS - An ink-jet head comprising: a supply channel configured to allow ink to flow; ink chamber groups, each having two or more ink chambers that are alternately provided on either side of the supply channel, along a direction of the ink, the ink chambers each having nozzles for discharging ink; wherein: each of the ink chamber groups has two or more ink chamber sequences in parallel with the direction, and two or more nozzle sequences in parallel with the direction, in each of the ink chamber groups, when the ink chamber sequence closest to the supply channel is a first ink chamber sequence, and the ink chamber sequence furthest away from the supply channel is an n-th ink chamber sequence, the number of the ink chambers in the first ink chamber sequence is greater than the number of the ink chambers in the n-th ink chamber sequence.11-03-2011
20120069104Liquid Discharge Head and Recording Device Using Same - Provided is a liquid discharge head through which discharged liquid droplets are easily gathered into one droplet, and a recording device using the head. A liquid discharge head 03-22-2012
20090141095LIQUID EJECTOR - A liquid cartridge which is used and is in the empty state is attached to the second cartridge attaching unit. When the attachment detector has detected that the liquid cartridge is attached to the second cartridge attaching unit and the second empty detector has detected that the liquid cartridge is in an empty state, the control unit controls the pump in such a way that a predetermined conveyance amount of the liquid is conveyed to the liquid cartridge attached to the second cartridge attaching unit after the liquid is conveyed from the discharge path to the liquid cartridge until the second empty detector detects that the liquid cartridge is no longer in the empty state.06-04-2009
20080316285PRINTER CRADLE FOR RECEIVING AN INK CARTRIDGE WITH A GEAR ASSEMBLY - Provided is a printer cradle for receiving an ink cartridge having a rotor element. The cradle includes a drive roller and an electrical motor having a drive shaft terminating in a worm gear that meshes with a cog affixed to the drive roller for driving said roller. The cradle also includes a flipper gear assembly that is operatively engaged with the drive roller to be driven by the drive roller between an engaged position, in which the flipper gear assembly engages the rotor element and a disengaged position in which the flipper gear assembly is disengaged from the rotor element. Further included is a controller arrangement having a controller board housing a print engine controller configured to control the motor to actuate or disengage the rotor element.12-25-2008
20080316286INK SUPPLY FOR A PRINTHEAD CARTRIDGE WITH A CONNECTOR ASSEMBLY. - Provided is an ink supply bag for a printhead cartridge. The supply bag includes two profiled panels arranged generally coplanar and co-terminally attached to form an ink holding chamber, along with a folded leaf spring biasing said chamber into an expanded position. The supply bag further includes a connector assembly operatively arranging said chamber in fluid communication with ink supply channels of the printhead cartridge.12-25-2008
20080316284INSTALLING FLUID CONTAINER IN FLUID EJECTION DEVICE - A fluid ejection device ejecting a fluid, the fluid ejection device includes: a fluid ejection unit, a main chassis case, a fluid-containing pack, and a container case. The fluid ejection unit ejects a fluid onto an ejection target. The main chassis case houses the fluid ejection unit. The fluid-containing pack contains a fluid for ejection. The container case houses the fluid-containing pack. The container case is pivotably attached to the main chassis case and openable by rotation about a rotation shaft.12-25-2008
20080316283INSTALLING FLUID CONTAINER IN FLUID EJECTION DEVICE - A fluid ejection device ejecting a fluid, the fluid ejection device includes: a fluid container; a fluid ejection unit; a delivery needle; a guard cover; and a guide. The fluid container includes a container portion and a withdrawal portion. The container portion contains a fluid for ejection, and the withdrawal portion allows withdrawal of the fluid contained in the container portion. The fluid ejection unit ejects a fluid onto an ejection target. The delivery needle provides a flow passage which communicates with the fluid ejection unit. The guard cover projects over the delivery needle. The guide mates with the fluid container, and then slidably guides the withdrawal portion toward a locking position where the delivery needle sticks through the withdrawal portion.12-25-2008
20090015640INKJET HEAD AND INKJET RECORDING APPARATUS - An inkjet head includes a nozzle to discharge liquid droplets, a pressure chamber which is configured to communicate with the nozzle and filled with liquid, a supply section which is configured to communicate with the pressure chamber and supplies the liquid to the pressure chamber, a recovery section which is configured to communicate with the pressure chamber and recovers the liquid from the pressure chamber, a bypass channel which is independent of the pressure chamber and connects the supply section with the recovery section, a pressure-control liquid chamber which is connected at one end to the bypass channel and connected at the other end to the atmosphere, and a porous member which is contained inside the pressure-control liquid chamber.01-15-2009
20090079802INKJET PRINTING APPARATUS AND METHOD FOR AGITATING INK - In order to recover unevenness in concentration of ink ejected from a print head, an agitation operation of agitating ink by causing the print head to reciprocate is carried out. This agitation operation sets a number of times of moving the print head for agitation according to a condition, such as a printing mode, for a reciprocating motion in a main scanning direction of the print head in printing.03-26-2009
20090201348Refill Unit For Engaging With Ink Storage Compartment, And Fluidically Isolating Printhead - A refill unit for refilling a negatively pressurized ink storage compartment that supplies ink to a printhead assembly. The refill unit has a body with a variable volume container for holding a quantity of ink and an actuator for fluidically isolating the printhead assembly and the ink storage compartment as the refill unit engages the ink storage compartment.08-13-2009
20090201347Ink supplying system for ink jet printer, ink supplying method for ink jet printer, and ink jet printer - To provide an ink supplying system for an ink jet printer with which ink supply work in starting to use the ink jet printer is easy and that can be reduced in size. In an ink supplying system for an ink jet printer including a first pipe having one end which is connected to a main tank in which ink is stored with the air therein being eliminated, a second pipe having one end which is connected to an auxiliary tank connected to another end of the first pipe with the air therein being eliminated, and an ink jet head that is connected to another end of the second pipe, ejects ink, and performs printing on a printing medium, the another end of the first pipe and the one end of the second pipe can be at least connected to or separated from an auxiliary tank or an auxiliary connecting means that is used in replacement of the auxiliary tank and has a capacity smaller than that of the auxiliary tank, and, a detachable unit that connects or separates, in connecting or separating the another end of the first pipe or the one end of the second pipe, the another end or the one end without allowing the air to flow into the auxiliary tank or the auxiliary connecting means is provided.08-13-2009
20110141209IMAGE FORMING APPARATUS - An image forming apparatus, includes a liquid jet head; a container main body; an air opening mechanism configured to open and close an air opening path in the container main body. The air opening mechanism includes a holding part, and an opening member movably provided at the holding part. The opening member includes an air communicating path, a filter member, and an air room. An opening cross-sectional area of the air room in a direction perpendicular to an air flow-in direction is greater than an opening cross-sectional area of the air communicating path in a direction perpendicular to an air flow-in direction.06-16-2011
20090085991PRINTHEAD MAINTENANCE SYSTEM FOR FLOODING PRINTHEAD - A printhead maintenance system is provided having a fluid supply system for flooding fluid from a printhead onto a printing face of the printhead, a roller arranged to be substantially coextensive with the printhead for receiving the flooded fluid from the printing face, and a transport mechanism for feeding the roller through a transfer zone and away from the printhead.04-02-2009
20090085990PRINTHEAD CARTRIDGE WITH INK SUPPLY BAGS - Provided is a printhead cartridge for a pagewidth printer. The cartridge includes a cartridge body having a base and a number of ink supply bags positioned inside the base. A lid encloses the bags in the base. The cartridge also includes a printhead assembly fast with the base and arranged in fluid communication with the ink bags. Each ink supply bag has two profiled panels sealed together to form an ink holding chamber which is collapsible to reduce a volume of ink stored therein. A folded leaf spring biases the chamber into an expanded condition. Each ink bag also includes a connector assembly providing fluid communication between the chamber and ink supply channels of the printhead assembly.04-02-2009
20090085989LIQUID DISCHARGING APPARATUS - A liquid discharge apparatus is provided. The liquid discharge apparatus includes a discharge head that discharges a first liquid supplied via a liquid supply tube from a liquid tank, wherein the liquid tank has a first liquid reservoir chamber that stores the first liquid and a second liquid reservoir chamber that stores a second liquid whose solvent is the same as that of the first liquid and whose concentration is lower than that of the first liquid, the liquid tank is partitioned by a partition wall that partitions an inside into the first liquid reservoir chamber and the second liquid reservoir chamber, and at least a part of the partition wall has liquid permeability and a solvent for the second liquid stored in the second liquid reservoir chamber is capable of permeating the inside of the first liquid reservoir chamber via the partition wall.04-02-2009
20090096846PRINTER WITH RESERVOIR HEADSPACE PRESSURE CONTROL - An inkjet printer that has a printhead for printing onto a media substrate, and a reservoir for containing a quantity of ink, the reservoir having a lower portion for holding ink and an upper portion defining a headspace of air above the ink. A fluid connection extends between the printhead and the reservoir. A pump draws air from the headspace to lower its air pressure and thereby controls the hydrostatic pressure of the ink at the printhead.04-16-2009
20090096847INK REFILL UNIT WITH INCREMENTAL INK EJECTION MECHANISM - An ink refill unit for a print cartridge, said unit comprises a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the print cartridge; a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing; a seal for sealing off one end of the fluid reservoir, the seal being movable within the fluid reservoir; an ejector assembly comprising a spring biased plunger engaged against the seal, the plunger having defined on a side thereof a number of groves; an actuator mechanism comprising a rod to which a pawl and an arm are attached, the pawl adapted to engage with the grooves to negate a biasing force of the plunger against the seal; and an actuator shaft attached to the housing, the actuator shaft being slidable with respect to housing so as to be exposed outside of the housing. The actuator shaft, when exposed outside of the housing, is operable to engage with the arm of the actuator mechanism to disengage the pawl from a groove, whereby the biasing force of the plunger is allowed to act against the seal.04-16-2009
20090015641PRINTER ARRANGEMENT INCORPORATING A PRINTHEAD MAINTENANCE STATION - Provided is a printer arrangement having a printhead cartridge with a molding assembly and a printhead. An ink cartridge supplies the printhead with ink via the molding assembly. The arrangement also includes a valve assembly for arranging the ink cartridge in fluid communication with the molding assembly, as well as a printhead maintenance station for maintaining the printhead.01-15-2009
20090231399INK STORING SYSTEM AND INK DELIVERING SYSTEM - An ink reservoir mechanism includes a ink reservioring portion for directly reservoiring link to be supplied to an ink jet recording head, the ink reservoiring portion having a reservoiring volum which reduces with consumption of the ink and being provided with an air-liquid separation device; a negative pressure source, having a variable inner volume, for normally applying a negative pressure to the ink reservoiring portion through the air-liquid separation device; and a connection path for connecting the negative pressure source and the ink reservoiring portion through the air-liquid separation device.09-17-2009
20080266367SINGLE PHASE PROXIMITY HEAD HAVING A CONTROLLED MENISCUS FOR TREATING A SUBSTRATE - A system for processing a substrate is described. The system includes a proximity head, a mechanism, and a liquid supply. The proximity head is configured to generate a controlled meniscus. Specifically, the proximity head has a plurality of dispensing nozzles formed on a face of the proximity head. The dispensing nozzles are configured to supply a liquid to the meniscus and the suction holes are added to remove a used liquid from the meniscus. The mechanism moves the proximity head or the substrate with respect to each other while maintaining contact between the meniscus and a surface of the substrate. The movement causes a thin layer of the liquid to remain on the surface after being contacted by the meniscus. The liquid supply is in fluid communication with the dispensing nozzles, and is configured to balance an amount of the liquid delivered to the meniscus with an amount of liquid removed from the meniscus, the amount of liquid removed from the meniscus including at least the thin layer of the liquid remaining on the surface of the substrate.10-30-2008
20110141208LIQUID SUPPLYING APPARATUS, LIQUID EJECTING APPARATUS, AND LIQUID SUPPLYING METHOD - A liquid supplying apparatus includes: a table on which a liquid container is placed, the liquid container containing liquid; a needle that can be inserted into the liquid container so as to supply the liquid contained in the liquid container to a liquid consumption side therethrough, the liquid consumption side being a side at which the liquid supplied through the needle is consumed; and a rotation mechanism that rotates the liquid container around one axis in process of the relative movement which is the movement of the table with respect to the needle.06-16-2011
20090213192Printhead Assembly With An Ink Supply Carrier Supporting An Ink Distributing Molding - A printhead assembly with a printhead integrated circuit (IC) for ejecting ink, an elongate molding which defines a recess for holding the printhead IC, and an elongate support member which supports the elongate molding. The molding defines a plurality of separate ink passages, each in fluid communication with the printhead IC. The elongate support member defines a plurality of separate ink reservoirs each in fluid communication with a respective ink passage. Each of the ink reservoirs extends axially along the support member. The support member has a core element that defines the ink reservoirs and a shell in which the core element can be received.08-27-2009
20090213193Printhead Assembly Having Printhead Integrated Circuit Carriers Arranged End-To-End On Ink Supply Support Structure - A printhead assembly comprises an elongate support structure; a series of side wall sections extending a length of the support structure and defining a plurality of ink supply channels, edges of the walls delineating a gap; a plurality of carriers positioned end-to-end in the gap and supported at a bottom surface thereof by said edges of the walls; and a printhead integrated circuit mounted to each carrier. The bottom surface of each carriers defines a plurality of apertures each in fluid communication with a respective ink supply passage defined through the carrier and respective ink supply channels defined by the series of side wall sections.08-27-2009
20110221835PRESSURE REGULATING VALVE FOR INKJET PRINTER - A pressure regulating valve for an inkjet printer includes a negative pressure generator including a negative pressure chamber, a pressure receiving member, and a pressure device. A sealing valve includes a pressure chamber, a valve element, and a valve element pressing device. A linkage mechanism includes a communication flow chamber and an operating lever swingably provided in the communication flow chamber and including an arm section, a first engagement section, and a second engagement section. A first length of the arm section is greater than a second length of the arm section. The first engagement section is pressed against the pressure receiving member to swing the operating lever and the second engagement section moves the valve element to open the sealing valve when the pressure receiving member is moved inwardly with respect to the negative pressure chamber against a force applied by the pressure device.09-15-2011
20110221836BULK INK SUPPLY SYSTEM - A bulk ink supply system of an inkjet printer includes a connector, an ink flow path, and an on-off valve. The connector is attachable to and detachable from an ink container. The connector includes an ink guiding path formed in the connector. The ink flow path connects the ink guiding path and an inkjet head of the inkjet printer to supply an ink from the ink guiding path to the inkjet head. The on-off valve allows communication between the ink guiding path and the ink flow path when the ink container is attached to the connector and hinders communication between the ink guiding path and the ink flow path when the ink container is detached from the connector.09-15-2011
20090225141LIQUID EJECTING METHOD, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - Provided is a liquid ejecting method, including ejecting a liquid from a liquid ejecting head, wherein: the viscosity of the liquid is in a range from 6 mPa·s to 15 mPa·s, the liquid ejecting head includes: nozzles which eject the liquid; a pressure chamber which applies a pressure variation to the liquid in order to eject the liquid from the nozzles; and a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber, the volume of the supply unit is more than ⅕ of the volume of the pressure chamber and is less than ½ of the volume of the pressure chamber, and the channel length of the pressure chamber is equal to or more than the channel length of the supply unit and is equal to or less than twice of the channel length of the supply unit09-10-2009
20090109265INK PASSAGES, PLATENS FOR AN INKJET RECORDING DEVICE, AND INKJET RECORDING DEVICES - According to an embodiment of the present invention, an ink passage comprises an ink passage comprising a first surface; and a second surface; wherein ink flows in an ink flow direction from the first surface to the second surface, and wherein a downstream edge of the first surface and an upstream edge of the second surface intersect each other.04-30-2009
20110228016IMAGE FORMING APPARATUS AND ATMOSPHERIC AIR OPENING METHOD - An image forming apparatus includes a sub tank that supplies a liquid to a head that ejects liquid droplets, the sub tank including a generating unit that generates a negative pressure inside the sub tank by expanding and contracting as the liquid is supplied to and ejected from the sub tank, and an opening mechanism that performs an opening operation of opening the sub tank to atmospheric air; a supply mechanism that supplies the liquid in a main tank to the sub tank; a carriage that moves in a main scanning direction above a sheet, the head being disposed in the carriage; a moving mechanism that changes a distance between the sheet and the head; and a control unit that causes the opening mechanism to perform the opening operation in conjunction with the moving mechanism changing the distance between the sheet and the ejecting head.09-22-2011
20090102900LIQUID STORAGE UNIT AND LIQUID EJECTING APPARATUS - The invention provides a liquid storage unit comprising: a case, a liquid storage part for storing a liquid in the case, with which a liquid part communicates; at least one gas accommodation part for accommodating a gas in the case, with which a gas port communicates, wherein the liquid in the liquid storage part is led outs through the liquid port by a pressure of a gas introduced from the gas port; an inner case provided in the case having a pair of openings on opposite side faces thereof; and a pair of flexible partitioning members sealing said pair of openings of the inner case respectively, thereby partitioning the liquid storage part therebetween and defining said at least one of the gas accommodation part in cooperation with the case.04-23-2009
20090102899Ink supply assembly for an ink jet printing device - An ink supply assembly includes at least one inlet port. At least one outlet port is connected to the inlet port via an ink cavity and is adapted to be connected to an ink discharge unit of an ink jet device. The ink supply assembly has a sandwich structure formed by at least two plate members and a foil that is interposed therebetween and has a part forming a wall of said ink cavity. At least one of the plate members defines a pressure equalization chamber adjacent to the ink cavity and separated therefrom by the foil.04-23-2009
20090102898INK JET RECORDING APPARATUS AND LIQUID SUPPLY APPARATUS - An ink jet recording apparatus supplying ink from a main tank to a head via a sub tank. The sub tank has two flow paths communicating with the main tank, an atmosphere communicating part, and a liquid exit part to the head. The liquid in the sub tank is maintained at a constant liquid level position by selecting, between the two flow paths, the flow path having a lower flow path resistance. Thus, the ink jet recording apparatus can store a predetermined amount of liquid stably in the sub tank. The ink jet recording apparatus and the liquid supply apparatus are capable, even when the main tank is detached or the ink therein is exhausted, of continuing the recording for a predetermined time or number of sheets, utilizing the ink in the sub tank.04-23-2009
20090213191Inkjet Printer With A Cartridge Storing Ink And A Roll Of Media - An inkjet printer has a print medium cartridge configured to store a print medium roll. The print medium roll has a former carrying a length of print medium and an ink supply core which can be received within the former. An inkjet printhead prints onto the print medium and an ink transmission channel structure connected between the ink supply core and the inkjet printhead assembly to transport ink there-between. The print medium is drawn from the roll by a print medium feed arrangement that feeds the print medium past the inkjet printhead during printing.08-27-2009
20090219352METHOD OF MINIMIZING NOZZLE DROOLING DURING PRINTHEAD PRIMING - A method of priming a printhead whilst minimizing nozzle drooling, the method comprising the steps of: 09-03-2009
20090251511Inkjet recording device - An inkjet recording device has an ink tank, a reservoir and an ink head, forms an ink supplying system by connecting with a path between the ink tank and the reservoir and between the reservoir and the ink head respectively, and forms a meniscus by generating a negative pressure on an ink discharging plane of the ink head by opening the reservoir to atmosphere. The inkjet recording device includes control electromagnetic valves to open or interrupt paths of the ink supplying system and valve switching control means for controlling opening/closing of the control electromagnetic valves, and controls the valve to be closed by the valve switching control means when the device vibrates. As a result, even if an ink liquid level in the reservoir changes when the device vibrates, transmission of this change to the meniscus of the ink discharging plane is prevented or suppressed.10-08-2009
20090244217INK CONTAINER AND INK JET RECORDING SYSTEM - An ink container for retaining ink includes an ink containing body, an elastically displaceable supporting member, a light emitting portion, a light receiving portion for receiving light from the light emitting portion, a display portion for displaying the received light, and a light guide portion for optically connecting the light receiving portion and the display portion so as to guide the light received by the receiving portion to the display portion. The supporting member at least partly functions as the light guide portion. The light receiving portion is located, with a gap with respect to the light emitting portion, so as to cover the light emitting portion. The light receiving portion approaches the light emitting portion when the supporting member approaches the ink containing body by being subjected to urging toward the ink containing body. The light receiving portion moves apart from the light emitting portion when the supporting member moves apart from the ink containing body by being released from the urging toward the ink containing body.10-01-2009
20090244216Printing apparatus - A printing apparatus to form an image on a recording medium is provided. The printing apparatus includes a first recording head, which is movable in a main scanning direction and ejects a specific-colored ink onto the recording medium, a first ink cartridge to store the specific-colored ink, a first ink conveyer, which connects the first recording head and the first ink cartridge to convey the specific-colored ink, and a first conveyer retainer, which is movable along with the first recording head and holds the first ink conveyer to extend there-along. The first conveyer retainer is arranged in a position higher than a connecting portion of the first ink conveyer with the first recording head and holds the first ink conveyer in a vertical range between a top level of the first conveyer retainer and a bottom level of the first ink cartridge.10-01-2009
20090179970PRINTER WITH FLUIDICALLY COUPLED PRINTHEAD CARTRIDGE - An inkjet printer that has at least three ink tanks for storing inks of different colour, a printhead cartridge having a printhead with a nozzle face defining an array of nozzles, and a fluid coupling for supplying the printhead with ink from each of the ink tanks. The printer also having a cradle defining a reference surface for engaging a datum point on the printhead cartridge to support the nozzle face at a precise spacing from a media feed path and a latch for securing the printhead cartridge in the cradle, the latch being movable between an open position where access to the cradle is unobstructed, and a closed position where access to the cradle is obstructed. The latch is configured to apply a compressive force urging the datum point on the printhead cartridge into engagement with the reference surface. The printer further including a fluid interface in fluid communication with the ink tanks and a mechanical linkage between the latch and the fluid interface such that the fluid interface is displaced into sealed engagement with the fluid coupling upon moving the latch to the closed position, the fluid interface being displaced in a direction that does affect the compressive force between the datum point and the reference surface.07-16-2009
20120105554INK FORMING METHOD - An ink forming method involves preparing a deagglomerated ink or a modified deagglomerated ink. The deagglomerated ink or the modified deagglomerated ink includes at least deagglomerated colorant particles and a liquid component. The deagglomerated colorant particles are chosen from pigment particles each encapsulated with a dispersant. The colorant particles have a particle size ranging from about 50 nm to about 500 nm. Prior to shipping and/or storing the deagglomerated ink or the modified deagglomerated ink, a portion of the liquid component is removed to form a concentrated ink that has a nonvolatile solids content ranging from about 40 wt % to about 90 wt % of the concentrated ink.05-03-2012
20090315959RECORDING HEAD AND RECORDING APPARATUS - A recording head includes ejection ports that eject ink, a first liquid chamber for supplying ink to the ejection ports, a second liquid chamber for supplying ink to the first liquid chamber, a gas reservoir disposed in the upper part of the first liquid chamber and collecting gas, a first outlet through which fluid is discharged out of the gas reservoir, and a pump chamber into which fluid is moved through the first outlet out of the first liquid chamber by producing a pressure difference from the first liquid chamber.12-24-2009
20100149288RECORDING APPARATUS - An ink jet recording apparatus includes a recording head, an ink tank, and two ink routes. The recording head is mounted on a carriage moving along a recording surface of a recording medium and discharges ink and thereby performs recording on the recording medium. The ink tank is disposed inside the recording apparatus and stores ink to be supplied to the recording head. The two ink routes connect the ink tank and the recording head and are capable of circulating ink between the ink tank and the recording head. One of the ink routes is an ink supply path that supplies ink from the ink tank to the recording head, and the other ink route is an ink reflux path that returns ink from the head to the ink tank. The ink reflux path is capable of being fluidly connected to and disconnected from the recording head.06-17-2010
20100149291PRINTHEAD ASSEMBLY WITH PRINTHEAD IC TILES - A printhead assembly for a pagewidth printer arrangement includes a channel shaped member; and a number of printhead tiles located in the channel shaped member. Each tile includes a printhead integrated circuit (IC) carrier member for receiving a printhead IC; and an ink ducting member that mates with the carrier member and defines ink ducts for supplying the printhead IC with ink via the carrier member. The carrier member is a first molding that defines a channel in which the associated printhead IC is received. The first molding has conductive ribs on one side of the channel, the conductive ribs wired to electrical contacts of the printhead IC.06-17-2010
20100149289LIQUID APPLICATION MECHANISM AND INKJET RECORDING APPARATUS - A liquid application mechanism includes a liquid application unit that applies liquid to an application medium, and a liquid supply unit that supplies the liquid to the liquid application unit from a storage unit. The liquid supply unit recovers a portion of the liquid to the storage unit, the portion of the liquid being a portion that has been supplied to the liquid application unit and has not been applied to the application medium. At a bottom portion of the storage unit, a plurality of trap space sections separated from each other by ribs are formed. The trap space sections have continuous rectangular shapes, and are open upward in the direction opposite to gravity. The rib height of the trap space sections is equal to or greater than 3 mm, and the rib interval of the trap space sections is in the range from 2 mm to 10 mm.06-17-2010
20100149287SELECTABLE FILL VOLUME FOR INK RESERVOIR - A method for filling an ink tank to one of several selectable ink fill volumes, by providing an ink tank including an ink reservoir having a maximum fill volume V and selecting an ink fill volume V06-17-2010
20110228017SHUT OFF VALVE FOR DISCONNECTING A PRINTHEAD FROM AN INK SUPPLY - A shut off valve is disclosed for connecting and disconnecting an ink supply to a printhead of an inkjet printer. The shut off valve has an ink inlet for connection to the ink supply and an ink outlet for connection to the printhead. A valve seat and a diaphragm biased into sealing engagement with the valve seat to disconnecting the ink supply to the printhead are also provided. The ink outlet and the ink inlet are both in fluid communication with one side of the diaphragm. Unsealing the diaphragm draws the diaphragm away from the valve seat to lower the fluid pressure in the ink inlet and the ink outlet.09-22-2011
20100177148INK-JET PRINTER - In an ink-jet printer of the present invention, an ink circulation path 07-15-2010
20100157002INK TANK AND RECORDING APPARATUS - An ink tank includes an ink supply connection port connected to a main body of a recording apparatus for supplying ink thereto, a first ink reservoir reserving the ink supplied to a sub-tank, a first ink delivery passage supplying the ink reserved in the first ink reservoir to the ink supply connection port, a one-way valve disposed in the first ink delivery passage that enables the ink to move from the first ink reservoir to the ink supply connection port, a second ink reservoir reserving the ink returned from the sub-tank, and a second ink delivery passage supplying the ink reserved in the second ink reservoir to the ink supply connection port and joins with the first ink delivery passage at a position between the one-way valve and the ink supply connection port.06-24-2010
20100157001INK MANIFOLD WITH MULTIPLE CONDUIT SHUT OFF VALVE - An ink manifold defining multiple fluid flow paths has openings arranged for detachable connection with conduits in an interface. Shut off valves at each of the openings respectively, are biased open. An actuator biased to a closed position by a resilient element, where it holds all the shut off valves closed. The actuator engages the interface such that moving the interface into connection with the openings simultaneously moves the actuator to an open position where the shut off valves are able to open. The resilient element generates a bias greater than a combined bias exerted by the shut off valves on the actuator.06-24-2010
20120033020IMAGE FORMING APPARATUS INCLUDING RECORDING HEAD FOR EJECTING LIQUID DROPLETS - An image forming apparatus includes a recording head, a liquid tank, a head tank, a liquid supply passage, a liquid supply passage, a liquid intake port, a valve member, and a lock unit. The lock unit is disposed in the head tank to lock and unlock the valve member in response to a change in pressure within the head tank. In a locked state, the valve member closes the liquid intake port in immovable state to constantly stop flow of the liquid into the head tank. In an unlocked state, the valve member is movable to open and close the liquid intake port in response to a change in pressure within the head tank to regulate the flow of the liquid into the head tank.02-09-2012
20100182383INKJET PRINTERWITH ACTIVE CONTROL OF INK PRESSURE - An inkjet printer comprises an inkjet printhead and an ink reservoir contained in a pressurizable chamber, with an ink conduit interconnecting the ink reservoir and the printhead. An air compressor is in fluid communication with the chamber and a valve is positioned between the air compressor and the chamber. A first air conduit interconnects an outlet of the air compressor and the valve, while a second air conduit interconnects an inlet of the air compressor and the valve. The valve is switchable between a first configuration in which the valve interconnects the outlet and the chamber via the first air conduit, and a second configuration in which the valve interconnects the inlet and the chamber via the second air conduit.07-22-2010
20100188467Inkjet head and printing apparatus - An inkjet head is provided. The inkjet head includes an ink reservoir to store ink, an ink inlet, through which the ink is introduced to the ink reservoir, an ink outlet, through which the ink in the ink reservoir is allowed to flow to the inkjet nozzle. The ink reservoir has a wall arising from a bottom of the ink reservoir to divide the ink reservoir into a plurality of ink chambers. The plurality of ink chambers include a first ink chamber and a second ink chamber. The plurality of ink chambers are in fluid communication with each other over a top edge of the wall. The wall is formed to include a through hole, which is formed in a vicinity of the bottom of the ink reservoir and allows the plurality of ink chambers to be in fluid communication with each other.07-29-2010
20100214379MANUFACTURING METHOD OF LIQUID EJECTING HEAD, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A manufacturing method produces a liquid ejecting head including first and second flow path members having liquid flow paths that communicate with each other. An integrally-molded member is surrounds the second flow path member on the second flow path member side of the first flow path member to join the first and second flow path members together. A holding process defines a space portion for forming the integrally-molded member in a frame section. The frame section is brought into contact with a contact surface of a recessed portion in the face of the second flow path member opposite the first flow path member, with the first and second flow path members contacting each other such that the liquid flow paths communicate with each other. A molding process fills the space portion with resin, thereby molding the integrally-molded member, and joins the first and second flow path members together.08-26-2010
20100194830LIQUID TANK WITH VENT-TO-ATMOSPHERE MECHANISM - A liquid tank includes a vent-to-atmosphere mechanism configured to open and close a vent-to-atmosphere passageway for venting an internal reservoir space connected to a liquid spray head to atmosphere, the vent-to-atmosphere mechanism including a cylindrical member, a valve seat disposed inside the cylindrical member, a valve plug disposed inside cylindrical member and movable to come in contact with or separate from the valve seat, a movable member disposed inside the cylindrical member on an atmosphere side of the valve plug in a slidable manner to cause a movement of the valve plug, the movable member having an outer surface in movable contact with an inner surface of the cylindrical member and having a communication passageway formed therethrough for communication with atmosphere, and a filter member disposed at the communication passageway to capture foreign material.08-05-2010
20090295883Ink Channel Extrusion Module For Pagewidth Printhead - An extrusion module for delivering ink to an array of printhead modules defining a pagewidth printhead. The modules are substantially coextensive with the extrusion module. The extrusion module includes a plurality of discrete ink channels each for conveying ink; and a pattern of holes defined in a surface of the extrusion module via which ink from each of said discrete ink channels is fed from the extrusion module to a printhead module. The pattern of holes is repeated longitudinally along the extrusion module. one repetition of the pattern corresponds to one printhead module.12-03-2009
20100214378IMAGE FORMING APPARATUS HAVING RECORDING HEAD - An image forming apparatus includes a recording head having nozzles for ejecting droplets, a liquid tank that stores liquid to be supplied to the recording head, a first channel member connected to the recording head, a second channel member connected to the liquid tank, a pressure regulation valve including an internal channel that connects the first channel member to the second channel member, a third channel member connecting the pressure regulation valve to one of the second channel member and the liquid tank, and a liquid feed unit disposed on the third channel member to feed the liquid. The pressure regulation valve changes a fluid resistance of the internal channel of the pressure regulation valve in response to a flow amount of the liquid passing through the first channel member and, as liquid droplets are ejected from the nozzles, the liquid feed unit feeds the liquid from the liquid tank to the recording head with the recording head in communication with the liquid tank via the pressure regulation valve.08-26-2010
20100225714REFILL UNIT HAVING FLUID STORAGE ACTUATORS - A refill unit is provided for refilling a fluid storage compartment of a printer. The refill unit has a body containing fluid, and a plurality of actuators defined in the body for actuating a constrictor of the storage compartment as the refill unit engages with the storage compartment and deactivating the constrictor as the refill unit disengages from the storage compartment. The constrictor constricts a flexible wall of the storage compartment.09-09-2010
20100225713Liquid Ejecting Head and Image Forming Device - At an inkjet line head, pressure chambers are disposed, via plural ink supply paths, at both sides of a common flow path that stores ink. The pressure chambers communicate with nozzles that eject droplets. Cylindrical structural bodies are disposed within the common flow path, along a vertical direction of the common flow path within sections between extended lines of positions where the nozzles are disposed. The structural bodies are arranged cyclically in an order of one, two three structural bodies in the sections of the common flow path. A liquid ejecting head and image forming device are provided that suppress effects of crosstalk due to low frequency resonance, and accordingly, can suppress locality of crosstalk.09-09-2010
20100238238LIQUID DROPLET EJECTING HEAD AND IMAGE FORMING APPARATUS - A liquid droplet ejecting head capable of efficiently removing air bubbles while maintaining liquid circulation efficiency, and an image forming apparatus are provided. Plural supply-side common flow channels and circulation-side common flow channels are disposed alternately, and plural pressure-chambers that each communicates with the supply-side common flow channel via an ink supply channel are provided. The plural pressure-chambers each communicates with the circulation-side common flow channel via an ink circulation channel. A bypass flow channel, connecting the supply-side common flow channel and the circulation-side common flow channel disposed adjacent thereto, and flowing the ink from the supply-side common flow channel to the circulation-side common flow channel, is provided at an end portion at the most downstream side of the supply-side common flow channel. Thus, air bubbles remaining in the supply-side common flow channel flows into the circulation-side common flow channel through the bypass flow channel together with the ink.09-23-2010
20100238240LIQUID SUPPLY APPARATUS, LIQUID EJECTING APPARATUS - A liquid supply apparatus supplies liquid from a liquid container through a liquid supply path to a recording head. A liquid supply pump drives when a flexible member is displaced such that a volume of a pump chamber is increased or decreased while a part of the liquid supply path is set as the pump chamber. A negative pressure chamber is divided from the pump chamber by the flexible member. A first directional valve in the liquid supply path passes the liquid in one direction toward the supply pump from the liquid container. A second directional valve passes the liquid in one direction toward the liquid ejecting apparatus from the supply pump. A pressure adjustor between the first directional valve and the second directional valve increases a volume of the liquid container when a negative pressure larger than a predetermined pressure is applied to the negative pressure chamber.09-23-2010
20120127241SYSTEMS FOR PRIMING FLUID JETTING DEVICES - Disclosed is a system for priming a fluid jetting device. The system includes a fluid trench configured within a fluid jetting chip of the fluid jetting device and at least one first channel fluidly coupled to the fluid trench. The at least one first channel extends vertically between the fluid jetting chip and a mounting unit adapted to support the fluid jetting chip, and is adapted to supply a priming fluid to the fluid trench. The system further includes at least one second channel fluidly coupled to the fluid trench. The at least one second channel extends vertically between the fluid jetting chip and the mounting unit, and is adapted to drain-out the priming fluid from the fluid trench. Further disclosed are systems for priming a fluid jetting device, in accordance with various embodiments of the present disclosure.05-24-2012
20120127242LIQUID FEED VALVE UNIT AND LIQUID EJECTION DEVICE - A liquid feed valve unit is configured to switch between a releasing mode for forcibly opening a valve and a blocking mode for closing the valve, and the valve can therefore be opened and closed in a short time as needed. Since the releasing mode is implemented by pushing the peripheral part and the pressure-receiving part of the flexible member, the flexible member can be prevented from flexing toward the outside of the liquid accommodating chamber even in the case that the pressure-receiving part is pushed. In this case, since a residual pressure can be prevented from forming in the liquid accommodating chamber, there is no need to suspend operation, and it is possible to immediately proceed to the next operation. A fast-operating liquid feed valve unit can thereby be obtained.05-24-2012
20100208009LIQUID EJECTING HEAD AND MANUFACTURING METHOD THEREOF, AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a first flow channel member that configures part of the wall surface of a liquid flow channel, a second flow channel member that configures a different part of the wall surface of the liquid flow channel than the part configured by the first flow channel member, and an integral molded member, formed around the liquid flow channel, that joins the first flow channel member with the second flow channel member through integral molding. An elastic member that is sandwiched between the first flow channel member and the second flow channel member and is more elastically deformable than the first flow channel member and the second flow channel member, is provided around the liquid flow channel, and the integral molded member is formed on the outside of the elastic member sandwiched between the first flow channel member and the second flow channel member.08-19-2010
20100208012REFILL UNIT FOR AN INK STORAGE COMPARTMENT CONNECTED TO A PRINTHEAD THROUGH AN OUTLET VALVE - A refill unit for refilling an ink storage compartment for a printhead assembly. The ink storage compartment is fluidically connected to the printhead assembly via an outlet valve. The refill unit a variable volume container for holding a quantity of ink and a valve actuator for closing the outlet valve as the refill unit engages the ink storage compartment.08-19-2010
20100253752SELF-SEALING UNIT, LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A self-sealing unit has a liquid supply route for supplying liquid to a liquid ejecting head. The self-sealing unit includes a pressure chamber on the liquid supply route and a valving element that opens or closes the liquid supply route to supply the liquid. A biasing member biases the valving element to close the liquid supply route. A film is fixed to the body of the self-sealing unit to demarcate the pressure chamber and causes the valving element to open by being displaced toward the pressure chamber side by a negative pressure acting in the pressure chamber. A convex section is positioned between the valving element and a wall surface of the pressure chamber. The distance between the valving element and the wall surface is shorter than that in other areas, away from the valving element and the wall surface such that the convex section supports the film.10-07-2010
20100253751Channel Member, Inkjet Head Structure and Inkjet Recording Device - Provided is a channel member having a channel which penetrates from one main surface to the other main surface. The channel is formed with its diameter increased toward the other main surface from the one main surface. A parallel section which is substantially parallel to the other main surface and is exposed to the other main surface is provided on the inner surface of the channel.10-07-2010
20100118093PRINTHEAD SYSTEM WITH SUBSTRATE CHANNEL SUPPORTING PRINTHEAD AND INK HOSE - A printhead system for an inkjet printer includes a pagewidth inkjet printhead formed from a plurality of printhead integrated circuits arranged end-to-end; a flexible ink hose extending a length of the printhead, the flexible ink hose defining a plurality of distinct and parallel ink channels and further defining plural groups of apertures repeated along the length of the flexible ink hose; and a substrate channel supporting on a top thereof the plurality of printhead integrated circuits and supporting from a bottom thereof the extruded flexible ink hose, the substrate channel provided with plural groups of repeated apertures defined therethrough and extending along a length of the channel. Each group of apertures provided on the substrate channel aligns with a respective group of apertures defined along the flexible ink hose and further with apertures provided on a bottom of one printhead integrated circuit.05-13-2010
20100259588DUAL CONDENSOR - The present invention relates to ink jet printing. More particularly, the invention relates to a condenser assembly for an ink jet printer. The condenser assembly comprises a first condenser adapted to separate first solvent vapour from a first fluid by condensation of said first solvent onto a first coolable surface and a second condenser adapted to separate second solvent vapour from a second fluid by condensation of said second solvent onto a second coolable surface.10-14-2010
20110128330REFILLABLE INK TANKS - An ink tank for use in a printer. In one embodiment, an ink tank includes an outer housing that defines an interior space, and an internal ink bag provided within the interior space, the ink bag being configured to be repeatedly be filled with and deliver ink, the ink tank including a metalized layer having a layer of polymeric material on which has been deposited a metal material.06-02-2011
20120194620LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a pressure control unit provided in a liquid flow path so as to control pressure. The pressure control unit includes a liquid introduction unit, a liquid chamber having a diaphragm, a communication hole that allows communication between the liquid introduction unit and the liquid chamber, a movable member including an opposing surface disposed on the side of the liquid chamber so as to oppose the communication hole, the movable member being disposed so as to move in response to the displacement of the diaphragm unit, and a displacement member that displaces the opposing surface between a first posture of opposing the communication hole and a second posture in which the opposing surface is tilted with respect to the communication hole in an angle different from the first posture.08-02-2012
20090322832LIQUID CONTAINER, METHOD OF FILLING LIQUID INTO LIQUID CONTAINER, AND REMANUFACTURING METHOD OF LIQUID CONTAINER - According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.12-31-2009
20090244218Refill Unit For Refilling One Of A Number Of Ink Compartments - An ink refill unit is provided for refilling a printer ink cartridge unit. The ink refill unit includes a base assembly that has ink refilling components and outlets for engaging a docking member connected to the ink storage compartments. Each outlet corresponds to a respective type of ink with only one of the outlets working. The ink refilling components include a syringe assembly coupled in fluid communication with the working outlet. A lid assembly covers the ink refilling components.10-01-2009
20090322831INK SUPPLY SYSTEM - An ink management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir; a weir disposed in the reservoir, configured to separate the reservoir into a first and a second chamber; the first chamber having an inlet for receiving liquid from a first remote location; and the weir being disposed such that the level of liquid in the first chamber can be maintained at a constant height; wherein the reservoir is sealed from the surrounding atmosphere and the system further comprises a pumped outlet disposed in the second chamber and arranged to remove liquid and gas contained within the reservoir.12-31-2009
20080231673INKJET PRINTERS - Inkjet printers are provided. An inkjet printer includes a maintenance module, an inkjet unit, a pump, a slider, and a swing gear assembly. The swing gear assembly is connected to a motor of the pump and detachably engaged with the slider. When the motor rotates the swing gear assembly in a first direction to a first angle, the swing gear assembly is engaged with the slider, and the swing gear assembly impels the slider from an initial position to a first position to open the valve. When the motor rotates the swing gear assembly in a second direction to a second angle, the swing gear assembly is engaged with the slider, to separate the slider from the first position and close the valve.09-25-2008
20110032314Inkjet head and method of manufacturing the same - An inkjet head according to an aspect of the invention may include: a manifold storing ink being injected from the outside; ink chambers receiving the ink from the manifold to eject the ink to the outside through nozzles; and a restrictor connecting the manifold and the ink chambers to each other and providing a plurality of interconnection paths.02-10-2011
20100220160PROCESSING LIQUID APPLYING APPARATUS AND IMAGE-FORMING APPARATUS - A processing liquid applying apparatus includes a processing liquid transfer roller which transfers a processing liquid to a transfer medium while rotating in a predetermined direction; a processing liquid applying section which applies the processing liquid to a surface of the processing liquid transfer roller; a downstream wall which is positioned on a downstream side in a rotating direction of the processing liquid transfer roller with respect to the processing liquid applying section; and a downstream wall moving mechanism which moves the downstream wall between a downstream wall first position at which the downstream wall is positioned when the processing liquid is transferred to the transfer medium and a downstream wall second position at which the downstream wall is positioned when the surface of the processing liquid transfer roller is washed with the processing liquid.09-02-2010
20080291250PRINTER CARTRIDGE FOR A PAGEWIDTH PRINTER HAVING A REFILL PORT AND A CONTROLLER BOARD - Provided is a printer cartridge for a pagewidth printer. The cartridge includes a body, a printhead integrated circuit assembly arranged on the body and including a printhead integrated circuit with a number of micro-electromechanical nozzles, and an authentication device arranged on the body and storing various manufacturer codes readable by a controller board of the printer to verify the authenticity of the printer cartridge. The cartridge also includes a plurality of reservoirs housed by the body for discretely storing printing fluids for supply to the printhead integrated circuit, as well as a refill port arranged in fluid communication with printing fluid conduits each leading to a respective reservoir, the port facilitating refilling of the reservoirs from a refill cartridge. The printhead integrated circuit assembly includes a power and data interface for interfacing the printer cartridge with the controller board configured to control operation of the printhead integrated circuit.11-27-2008
20120033019INKJET RECORDING APPARATUS AND INKJET RECORDING METHOD - According to embodiments, an inkjet recording apparatus includes an ink tank which contains ink, a printing head which is connected to the ink tank through an ink channel and ejects the ink from a nozzle surface, and a channel member which is provided in the ink channel and has a clearance gap that connects the ink channel to the outside. The channel member is provided in a part of the ink channel, which has a positive pressure with respect to the atmospheric pressure at least during a period in which the printing head is capable of printing.02-09-2012
20080278554INK REFILL UNIT WITH THREADED INCREMENTAL INK EJECTION FOR PRINT CARTRIDGE - An ink refill unit for a print cartridge is provided. The unit includes a housing which defines a fluid path in fluid communication with an outlet. The unit also includes an ink reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly configured to incrementally eject ink from the reservoir when the assembly is actuated by the print cartridge. The ejector assembly includes a plunger having a toothed thread which engages with a screw thread provided in an internal wall of the housing. The ejector has a drive gear so that actuation of the drive gear imparts rotation to the toothed thread so as to rotate the plunger within the screw thread of the housing to eject ink from a bellows-like reservoir.11-13-2008
20100295906PRINTHEAD ASSEMBLY HAVING INK SUPPLY ARRANGEMENT AND PLURALITY OF PRINTHEAD SEGMENT CARRIERS - A printhead assembly includes an ink supply arrangement, the ink supply arrangement having a profile member defining a semi-open cross-section, the profile member having peripheral, structured side walls defining free, opposing, lengthwise running edges delineating a gap extending along the entire length of the profile member, the profile member further defining three internal webs protruding from a base wall section of the peripheral wall into the interior of the profile member to define, together with the side walls, four ink supply channels opening towards the gap; and a plurality of printhead segment carriers attached to the ink supply arrangement, each of the printhead segment carriers arranged on the ink supply arrangement in fluid communication with the ink supply channels of the ink supply arrangement. The internal webs and the wall sections are arranged to define a semi-circular cross-sectional channel. Each of the ink supply channels opens into the semi-circular cross-sectional channel.11-25-2010
20100302324INK SUPPLY SYSTEM FOR AN INKJET PRINTER - The invention describes an ink supply system (12-02-2010
20100302325Integrated Apparatus for Supplying Ink and Regulating Pressure - Disclosed is an integrated apparatus for supplying ink and regulating pressure, which comprises a chamber accommodating ink, a main chamber preliminarily storing ink to be supplied to the chamber, a nozzle communicating with the chamber and jetting ink transferred from the chamber to an outside, a first valve blocking or letting flow of ink between the main chamber and the chamber, a second valve blocking and letting flow of ink between the chamber and the nozzle, a piston placed above ink accommodated in the chamber and reciprocating rectilinearly while sealing ink inside the chamber, a piston driver providing a driving force to the piston, a sensor installed in the chamber and sensing pressure due to weight of ink, and a controller receiving a sensed signal from the sensor and outputting a signal for controlling the piston to the piston, wherein the piston moves down as a level of ink accommodated in the chamber is lowered when ink is discharged to the outside through the nozzle, and the piston moves up and the first valve and the second valve are respectively opened and closed when ink is filled in the chamber.12-02-2010
20100328402FLOW THROUGH DISPENSER INCLUDING DIVERTER COOLING CHANNEL - A liquid dispenser includes a liquid supply channel, a liquid dispensing channel including an outlet opening, a liquid return channel, and a liquid cooling channel positioned relative to the liquid dispensing channel. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member is selectively actuatable using heat energy to divert a portion of the liquid toward outlet opening of the liquid dispensing channel, the diverter member including a first side that faces the liquid dispensing channel and a second side that faces the liquid cooling channel.12-30-2010
20110025788Fluid Interconnection - In one embodiment, a fluid interconnection between a fluid container and a fluid ejector assembly includes: a first wick at an outlet from the container, the first wick having an upstream surface and a downstream surface; a second wick at an inlet to the ejector assembly, the second wick having an upstream surface and a downstream surface, the upstream surface in direct contact with the downstream surface of the first wick across substantially the entire area of the upstream surface of the second wick; and a filter in direct contact with the downstream surface of the second wick.02-03-2011
20110025786INK RESERVOIR WITH A BIASING VALVE - An ink reservoir that contains ink and is detachably mountable to a printhead, the ink reservoir includes a free ink chamber for containing the ink; a valve assembly extending into the free ink chamber and including a first position for permitting ink to flow from the ink reservoir and a second position for stopping the flow of ink from the ink reservoir; and a wick that receives ink from the ink reservoir for transfer to the printhead.02-03-2011
20090066765Pagewidth Printhead Assembly With Top-Fed Ink Ducts - A pagewidth printhead assembly comprises an ink conduit structure defining a plurality of longitudinal ink ducts; a pagewidth printhead mounted to said ink conduit structure on a bottom surface thereof, the pagewidth printhead being in fluid communication with the ink conduit structure; a plurality of inlet ports provided adjacent and substantially planar to the ink conduit structure and the plurality of longitudinal ink ducts; and an ink distribution structure including a plurality of ink channels connecting each of the plurality of longitudinal ink ducts with respective inlet ports. The ink channels extend from respective inlet ports above the ink conduit structure so as to feed into respective longitudinal ink ducts from above.03-12-2009
20090066764PRINTER WITH MUTUALLY ENGAGING INK CARTRIDGE, PRINTHEAD CARTRIDGE AND PRINTER BODY - An inkjet printer that has a printer body, a printhead cartridge for installation in the printer body, and an ink cartridge for supplying the printhead cartridge with ink. The ink cartridge has an ink outlet valve and an air inlet, the ink outlet valve engaging an ink inlet valve on the printhead cartridge, and the air inlet engaging a complementary formation on the printer body to open the air inlet and locate the ink cartridge.03-12-2009
20110025787PRINTHEAD SUPPORT STRUCTURE WITH CAVITIES FOR PULSE DAMPING - A printhead for an inkjet printer is disclosed. The printhead has one or more a printhead integrated circuits (ICs) with an array of nozzles for ejecting ink. A support structure of the printhead supports the printhead ICs. The support structure has ink conduits for supplying the array of nozzles with ink. Each ink conduit includes cavities distributed along a roof of the ink conduit. An opening to each respective cavity has an upstream edge and a downstream edge. The upstream edge contacts the ink before the downstream edge during initial priming of the ink conduits from an ink supply. The upstream edge has a transition face between the ink conduit and the cavity interior. The transition face is configured to inhibit ink from filling the cavity by capillary action during initial priming of the ink conduit. This causes gas to be trapped within the cavity. The gas acts to compress pressure pulses in the ink.02-03-2011
20100171798LIQUID JET RECORDING HEAD AND MANUFACTURING METHOD THEREOF - A primary flow path forming member is provided with a groove which becomes a recording liquid supply path on a bottom surface thereof. A second flow path forming member is provided with an arm portion having a small width and a large length. The arm portion of the second flow path forming member is used as a cap for closing the opening of the groove which becomes the liquid supply path formed on the bottom surface of the prime flow path forming member. The primary flow path forming member and the second flow path forming member as described above are formed by injection-molding and bonded with each other by a bonding member. The bonding member is formed to cover the periphery of a portion where the opening edge of the groove which becomes the recording liquid supply path, in the primary flow path forming member abuts on the arm portion of the second flow path forming member.07-08-2010
20100079562LIQUID DROPLET EJECTING APPARATUS AND METHOD OF CONTROLLING LIQUID DROPLET EJECTING APPARATUS - A liquid droplet ejecting apparatus includes: a supply-use tank that is sectioned by an elastic film into a liquid chamber and a gas chamber; a supply-use flow path that interconnects the supply-use tank and a recording head; and a pump that pumps the liquid stored in the liquid chamber to the recording head via the supply-use flow path by supplying the liquid from an external tank to the liquid chamber of the supply-use tank. The flow path is controlled to supply the liquid to the liquid chamber in a state where the supply-use flow path is closed, cause the elastic film to press against an inner wall of the gas chamber, thereafter open the supply-use flow path, release the elastic film from the pressing state, and supply, with the pump, the liquid from the external tank to the recording head via the supply-use tank and the supply-use flow path.04-01-2010
20110115856LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a liquid ejecting head; a liquid receiving section; a suction pump that is connected the liquid receiving section; a first liquid containing section that contains first liquid; a second liquid containing section that contains second liquid. When the second liquid in the liquid ejecting head is exchanged for the first liquid, the liquid ejecting head eject the liquid toward the liquid receiving section in a state in which the liquid receiving section is away from the liquid ejecting head, and when the first liquid in the liquid ejecting head is exchanged for the second liquid, the suction pump to operate in a state in which the liquid receiving section has been brought into contact with the liquid ejecting head to cover the ejection nozzles.05-19-2011
20110018947Liquid Supply Flow Path Device And Liquid Ejecting Apparatus Using The Same - [Object] To provide a liquid supply flow path device which, even when a liquid is supplied from an external tank to the inside of a liquid ejecting apparatus body, can prevent stop of liquid supply that is caused by flattening by a casing cover, without impairing the operability, the performance, and the appearance of the liquid ejecting apparatus; and a liquid ejecting apparatus using the same.01-27-2011
20090051742INK DELIVERY SYSTEM AND METHODS FOR IMPROVED PRINTING - An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.02-26-2009
20090033724FLUID DELIVERY SYSTEM - Various embodiments and methods relating to delivering fluid through a standpipe and one or more slots are disclosed.02-05-2009
20110085011INK SUPPLY SYSTEM HAVING DOWNSTREAM CONDUIT LOOP - An ink supply system for an inkjet printer. The ink supply system includes: an upstream ink conduit for connection with an ink inlet of a printhead; a pressure-regulating chamber having an outlet port connected to the upstream ink conduit, the chamber containing ink at a first level below the printhead, wherein a headspace above the first level of ink is open to atmosphere; and a downstream ink conduit for connection with an ink outlet of the printhead, the downstream ink conduit extending above the first level of ink and being open to atmosphere. The downstream ink conduit has a loop section passing below the first level of ink, such that, in a printing configuration, a second level of ink in the loop section is equal to the first level of ink in the chamber.04-14-2011
20100238239LIQUID COLUMN MEMBER OF LIQUID TANK, LIQUID TANK, AND DROPLET DISCHARGE DEVICE - A liquid column member of a liquid tank is adapted to be coupled to a tank body of the liquid tank and to face a photosensor that detects a liquid level in the tank body. The liquid column member includes a pipe body and a liquid guide portion. The pipe body is made of light transmissive material. The pipe body has a liquid repellent internal surface. The liquid guide portion is configured and arranged to guide a droplet that slips down along the internal surface of the pipe body away from a sensing position of the photosensor.09-23-2010
20100220159FLUSH PUMP FOR INK SUPPLY SYSTEM - An ink supply system for an ink jet printer has an ink circuit including a plurality of circuit components and fluid paths for conveying fluid between components. A manifold defines the fluid paths and a plurality of ports in fluid communication with the paths. One of the fluid paths is a solvent supply path for connection to a source of solvent. A second of the fluid paths being a solvent flush path for delivering solvent to an outlet for connection to a print head of the printer. A flush pump is disposed at the manifold between the first and second paths and in fluid communication therewith, the pump being configured to pump the solvent into the solvent flush path.09-02-2010
20090219351PRINTHEAD DE-PRIMING SYSTEM WITH FLOAT VALVE ISOLATION OF PRINTHEAD FROM INK RESERVOIR - A printhead depriming system, the system comprising: 09-03-2009
20090219350PNEUMATIC INK-JET SYSTEM - A pneumatic ink-jet system is applied in an inkjet printer and uses a negative pressure generator, which is designed according to the Bernoulli's Theory, with a stable airflow in a certain speed to generated stable pressure inside at least one inkpot and at least one print head. Therefore, the at least one print head is kept in an appropriate wet state and the quality of printing is enhanced. Moreover, a top surface of the ink inside the at least one inkpot can be controlled to be higher than the at least one print head, so the pneumatic ink-jet system can be applied in a large format inkjet printer.09-03-2009
20090322830INK DELIVERY - Among other things, an apparatus for use in ink jetting includes a reservoir system including a reservoir to contain a volume of ink to be delivered to and jetted from at least two jetting assemblies onto a substrate in an ink jetting direction. The reservoir system is located adjacent to at least two of the jetting assemblies along the ink jetting direction.12-31-2009
20100013895LIQUID EJECTING APPARATUS - The present invention is a liquid ejecting apparatus including: a carriage that reciprocates in a main scanning direction; a liquid ejecting head mounted on the carriage, having a plurality of head-liquid-supplying ports and a plurality of nozzles; and a sub-tank member mounted on the carriage, having a plurality of liquid-storing-room openings that are respectively communicated with the plurality of head-liquid-supplying ports of the liquid ejecting head. The sub-tank member is formed as a single integral member. Each of the plurality of liquid-storing-room openings is closed by an elastic partition having a predetermined area in order to form a liquid storing room. The plurality of liquid-storing-room openings are respectively communicated with a plurality of liquid-communication ways provided in the sub-tank member. The plurality of liquid-communication ways are respectively communicated with a plurality of sub-tank-liquid-supplying ports provided at an outside of the sub-tank member.01-21-2010
20120242761Liquid Ejecting Device, Printing Apparatus and Liquid Supplying Method - A liquid ejecting device is provided. A main tank stores liquid. A sub-tank includes a variable volume liquid chamber that stores the liquid supplied from the main tank. A head ejects the liquid supplied from the sub-tank. A carriage is movable to reciprocate the sub-tank and the head. A first engagement member is provided in the sub-tank and is movable to expand the volume of the liquid chamber. A second engagement member engages with the first engagement member and moves the first engagement member. The liquid is supplied from the main tank to the sub-tank when the first engagement member is moved by the second engagement member to expand the volume of the liquid chamber.09-27-2012
20100053279INK-JET RECORDING APPARATUS - An ink-jet recording apparatus including a recording head for ejecting an ink, an auxiliary reservoir having an upstream chamber and a downstream chamber both open to the atmosphere and configured to store the ink, a first supply passage for supplying the ink from the downstream chamber of the auxiliary reservoir to the recording head, a return passage for returning the ink from the recording head to the upstream chamber of the auxiliary reservoir, and a partition portion which divides an internal space of the auxiliary reservoir into the upstream and downstream chambers and which has a filter section at least partially contacting the ink in the upstream and downstream chambers.03-04-2010
20100128092Liquid Jetting Apparatus - A liquid jetting apparatus includes a liquid jetting head which reciprocates in a first direction on a predetermined plane and which jets the liquid from a nozzle; a liquid supply source which stores the liquid to be supplied to the liquid jetting head; a flexible tube which is fixed to the liquid jetting apparatus at a predetermined fixed portion different from a connecting portion of the tube at which the tube is connected to the liquid jetting head, and which is arranged in a state that the tube is bent at a portion between the fixed portion and the connecting portion; and a regulating member which is arranged to regulate a movement of the tube caused by the bending of the tube, and the regulating member has an accommodating portion which extends in the first direction and accommodates the tube.05-27-2010
20100134574ATTACHMENT, LIQUID CONTAINER, AND LIQUID SUPPLY APPARATUS - An attachment is mounted on a cartridge holder of a printer as a replacement of an ink cartridge. An ink outlet member having a link passage is separably secured to an attachment body. Ink is supplied from the exterior to the ink outlet member through an ink supply tube. When the attachment is mounted on the cartridge holder, a downstream end of the ink outlet member is positioned with respect to and connected to an ink supply needle of the printer. Accordingly, the attachment is easily and quickly installed in a liquid ejection apparatus. This reduces costs and makes it easy to use the attachment.06-03-2010
20100134573PRINTHEAD ASSEMBLY WITH INK SUPPLY SHUT OFF - A printhead assembly with a printhead and a shut off (06-03-2010
20110074893DISCHARGE LIQUID AGITATING MECHANISM, AND AN INKJET RECORDING APPARATUS HAVING THE DISCHARGE LIQUID AGITATING MECHANISM - A discharge liquid agitating mechanism, and an inkjet recording apparatus having the discharge liquid agitating mechanism, are provided which are simple in construction, and are yet capable of preventing sedimentation of particles and the like contained in a discharge liquid.03-31-2011
20100123762 Ink Umbilical Interface To A Printhead In A Printer - An ink umbilical interface facilitates removal of the umbilical from a printhead while better preserving the integrity of the interface seal. The ink umbilical interface includes an ink umbilical connector having a plurality of conduits terminating within the connector and a tapered nozzle extending from each conduit in the plurality of conduits, each conduit communicating with a liquid ink reservoir, a backplate of a printhead having a plurality of openings, each opening being positioned to receive one of the tapered nozzles extending from the ink umbilical connector, and at least one sealing member positioned between the backplate and the ink umbilical connector, the sealing member having at least one opening to align with one of the backplate openings and receive one of the tapered nozzles.05-20-2010
20090027461IMAGE RECORDING APPARATUS - An ink feeding mechanism includes an ink reservoir 01-29-2009
20110074892LIQUID DROPLET EJECTING APPARATUS - A liquid droplet ejecting apparatus including: plural liquid droplet ejecting portions; supply-side individual flow paths; discharge-side individual flow paths; a supply-side common flow path; a discharge-side common flow path; first opening/closing mechanisms; second opening/closing mechanisms; a first pressure applying portion; a second pressure applying portion; a first circulating path; a third opening/closing mechanism; a second circulating path including an upstream end portion being connected to the supply-side common flow path further downstream than a connecting portion of a supply-side individual flow path connected to the supply-side common flow path at a furthest upstream side in a liquid circulating direction and a downstream end portion being connected to the discharge-side common flow path, and circulating the liquid between the supply-side common flow path and the discharge-side common flow path; and a fourth opening/closing mechanism, is provided.03-31-2011
20110050813HIGH SPEED PRINTING MATERIAL DELIVERY SYSTEM - A printing material delivery system includes a printing material storage that includes a printing material. The printing material deliver system also includes a print head. A pressurizing device defines a housing that includes an inlet coupled to the printing material storage, an outlet coupled to the print head, and that houses a rotatable member that is operable to rotate and create a pressure differential in order to transfer the printing material from the printing material storage, through the pressurizing device, and out of the print head.03-03-2011
20100295905INK SUPPLY DEVICE FOR INKJET PRINTER AND INKJET PRINTER - An ink supply device for an inkjet printer includes a sub-tank and a main tank. The sub-tank has an ink chamber to store liquid ink and is connected to a print head configured to eject the liquid ink via a head-side supply passage. The sub-tank has a plurality of supply holes which connect the ink chamber and the head-side supply passage. At least two of the plurality of supply holes have their openings on the ink chamber side formed at different heights. The main tank is connected to the sub-tank and contains the liquid ink to be supplied to the ink chamber.11-25-2010
20100259587INK DELIVERY SYSTEM - An ink delivery system includes a first tank including a fill sensor; a second tank including a fill sensor; a pump configured to pump ink from the first tank to the second tank; a third tank including a fill sensor; a print head in fluid communication with the second tank and the third tank. In an embodiment, the third tank is in fluid communication with the first tank and may be configured to provide a closed loop system, the second tank is in fluid communication with the third tank, and a pressure differential across the print head causes ink to flow through the print head. For some embodiments, pumps may be provided to control pressure differentials and print heads may print at one or more angles.10-14-2010
20090002464Print ink transport mechanism for selectively transporting different colored inks - A print ink transport mechanism includes a first ink pipe for transporting a first colored ink, and a second ink pipe for transporting a second colored ink, a rotary module including a first protruding component with a first cavity disposed in a position corresponding to the first ink pipe, and a drive means connected to the rotary module for driving the rotary module. When the drive means drives the rotary module to rotate to a first position, the first protruding component presses the second ink pipe, and the first ink pipe passes through the cavity on the first protruding component, so that the second ink pipe is unable to transport the second colored ink and the first ink pipe is able to transport the first colored ink.01-01-2009
20120200644LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejection head that reciprocates, a liquid supplying flow channel supplies a ink to the liquid ejection head, a non-return valve in the liquid supplying flow channel that opens when ink flows from an upstream region to a downstream region where the liquid ejection head is located and closes when ink flows from the downstream region to the upstream region, a volume changing unit that changes a volume of an inner space, and a stirring unit that stirs ink stored therein in accordance with the volume change of the volume changing unit, the stirring unit being disposed separately from the volume changing unit and they are disposed in the liquid supplying flow channel between the non-return valve and the liquid ejection head.08-09-2012
20110254904DROPLET DISCHARGING DEVICE AND METHOD FOR HEATING FUNCTIONAL LIQUID THEREOF - A method is for heating a functional liquid of a droplet discharging device that has a storage which houses a container storing a functional liquid containing a functional material; a droplet discharge head discharging the functional liquid in a droplet; a cooling means included to the storage and cooling the functional liquid; and a supply tube supplying the functional liquid that is cooled in the storage to the droplet discharge head. The method includes: heating the functional liquid in the supply tube with waste heat that is generated correspondingly to cooling of the cooling means.10-20-2011
20080246824MODULAR PAGEWIDTH PRINTHEAD ASSEMBLY HAVING A FLUID DISTRIBUTION ASSEMBLY WITH ELASTOMERIC PADS FOR TAKING UP TOLERANCE - A modular pagewidth printhead assembly includes a plurality of printhead modules, a fluid delivery structure and a flexible printed circuit board. Each printhead module includes a printhead integrated circuit with a plurality of micro-electromechanical nozzle arrangements, and a fluid distribution assembly of liquid crystal polymer micromoldings defining a plurality of discrete fluid paths when joined for supplying discrete fluids to the nozzle arrangements. The fluid delivery structure is configured to receive the printhead modules and to supply said modules with discrete fluids. The flexible printed circuit board is sandwiched between the supply structure and the printhead modules, and is bonded to the supply structure to keep it in place. The circuit board extends around one edge of the supply structure for carrying data and power to said modules. The fluid distribution assembly includes at least one elastomeric pad to take up tolerance when the relevant module is located on the supply structure.10-09-2008
20080246823Inkjet printing apparatus with a priming device - An inkjet printing apparatus comprises at least one printhead which comprises at least one ink chamber and a plurality of nozzles, at least one ink container remote from the printhead, an ink delivery system comprising a source of gas under pressure operable to supply ink from said remote ink container to said ink chamber on the printhead, a priming device arranged to prime at least one printhead and comprising a connecting assembly to connect the source of gas under pressure to the printhead to be primed, and a controller to control the flow of gas through said connecting assembly to provide upon demand gas under pressure to the printhead in order to cause a flow of ink from the ink chamber through the nozzles to prime the printhead.10-09-2008
20080309739FLUID SUPPLYING APPARATUS, FLUID EJECTING APPARATUS, AND FLUID SUPPLYING METHOD - The invention provides a liquid supplying apparatus that is attached to a liquid ejecting apparatus for supplying liquid to a plurality of liquid ejecting heads of the liquid ejecting apparatus. The liquid supplying apparatus includes: at least one liquid container and a plurality of liquid-supply channels that supply liquid from the least one liquid container to the plurality of liquid ejecting heads by utilizing a difference in the water head difference therebetween. The liquid-supply channels are connected to the at least one liquid container and corresponding liquid-supply reception ports of the plurality of liquid ejecting heads, wherein the number of the liquid-supply reception ports of the liquid ejecting heads is larger than the number of the liquid-supply channels.12-18-2008
20080278555INK JET PRINTING APPARATUS - For a liquid applying mechanism of an ink jet printing apparatus, a liquid to be used for applying it to a medium is prevented from evaporating and leaking from a liquid holding member. An applying roller and the liquid holding member contact with each other to hold the liquid and apply the held liquid to a printing medium by means of the applying roller. In this configuration, the surface of the applying roller has no irregularities. Thereby, the applying roller can contact with the liquid holding member to form an adequate liquid-tight seal therebetween.11-13-2008
20080252699INK EJECTION PRINTHEAD INCORPORATING A CONNECTOR ARRANGEMENT - An ink ejection printhead includes an elongate support frame supporting ink ejection printhead modules. An end plate is mounted to an end of the support frame and defines a guide arrangement. A connector arrangement is supported by the guide arrangement and includes a body portion defining a pair of holes. The connector arrangement includes a first connector extending from the body portion between the holes. The connector arrangement also includes a second connector configured to engage with the holes so that the first connector is located between the second connector and the body portion.10-16-2008
20080252698INK JET RECORDING HEAD - An ink jet recording head includes a element substrate; a plurality of ejection outlets, provided on the element substrate, for ejecting ink in a direction perpendicular to the element substrate; and a nozzle formation member having a plurality of ink flow paths which are in fluid communication with the ejection outlets, respectively; wherein the ink flow paths are arranged at a density higher than 1200 dpi in an arranging direction of the ejection outlets; wherein widths of flow passage walls forming the ink flow paths are smaller than heights of the ink flow paths and are smaller than widths of the ink flow paths.10-16-2008
20120200645AGITATING DEVICE AND LIQUID EJECTING APPARATUS - An agitating device includes: a movement portion which is provided in a liquid accommodation portion that has an accommodation chamber accommodating a liquid containing a functional material and a deformation portion that is deformed so as to change a volume of the accommodation chamber, and is moved along with deformation of the deformation portion; and an agitating portion which agitates the liquid in the accommodation chamber along with movement of the movement portion.08-09-2012
20080204523Ink jet printer - An ink jet printer is provided with an ink jet head, a sub ink tank, a carriage, a main body, and an ink supply device. The ink jet head includes an ink passage and a nozzle communicated with the ink passage. The sub ink tank is communicated with the ink passage of the ink jet head. The sub ink tank is elastically deformable. The ink jet head and the sub ink tank are mounted on the carriage. The carriage is capable of moving. The main body houses the ink jet head, the sub ink tank, and the carriage. The main body has a space for housing a main ink tank that is to be communicated with the sub ink tank. The ink supply device supplies ink within the main ink tank to the sub ink tank by applying a pushing force to the sub ink tank and releasing the pushing force after applying the pushing force.08-28-2008
20100214381PLUNGE ACTION REFILL DISPENSER FOR INKJET PRINTER CARTRIDGE - A printing fluid dispenser includes a housing with first and second portions, the first portion being displaceable relative to the second portion, and the second portion defining a collar at a bottom end thereof; a deformable membrane housed within the second portion for storing a quantity of printing fluid; and a resilient member adapted to deform in response to displacement of the first portion relative to the second portion. The first portion has a maximum displacement relative to the second portion that corresponds to a maximum possible pressure applied by the resilient member to the printing fluid. The deformable membrane includes an outlet pipe extending therefrom and fitting within the collar.08-26-2010
20100283820Inkjet head assembly - There is provided an inkjet head assembly. The inkjet head assembly includes an ink tank including a first storage part receiving ink, and a second storage part communicating with the first storage part through at least one through hole and maintaining a full ink level upon receiving ink from the first storage part, and an inkjet head connected to the second storage part by an ink supply path and ejecting ink upon receiving ink from the second storage part. The inkjet head assembly includes the ink tank supplying ink to the inkjet head and storing ink separately in the first storage part and the second storage part thereof, and the second storage part maintains a full ink level therein. Accordingly, deterioration in print quality can be minimized due to the second storage part attenuating pressure variations caused by ink movement when the inkjet assembly moves.11-11-2010
20110254903PRINTING APPARATUS - Provided is a printing apparatus in which bubbles in a print head are easily removed. The printing apparatus includes a first one-way valve disposed between the pump and the ink tank in the collection channel, the first one-way valve allowing movement of ink from the pump to the ink tank and blocking movement of ink from the ink tank to the pump; a circulation channel that connects the ink tank to the collection channel at a position between the pump and the first one-way valve, the circulation channel enabling circulation of ink from the ink tank, through the print head, and to the ink tank; and a second one-way valve disposed in the circulation channel, the second one-way valve allowing movement of ink from the ink tank to the pump and blocking movement of ink from the pump to the ink tank.10-20-2011
20100253753PRINTING DEVICE FLUID RESERVOIR WITH ALIGNMENT FEATURES - Various embodiments of a printing device fluid reservoir with alignment features and various embodiments of a printing device fluid reservoir chassis with alignment features are disclosed. According to some aspects of these embodiments, the alignment features are grouped together near an ultimate connection point between a fluid reservoir and a chassis to increase design freedom on other regions of the fluid reservoir/chassis. Other aspects of these embodiments include specially designed and located alignment features of a fluid reservoir that engage specially designed and located alignment features of a chassis in sequence throughout the process of inserting the fluid reservoir into the chassis in order to facilitate simple and effective engagement.10-07-2010
20110085009INK SUPPLY SYSTEM - An ink supply system for an ink jet printer, particularly a continuous ink jet printer, has a manifold assembly of two parts that are brought together at interfacing surfaces. At least one of the surfaces has a plurality of ink flow channels for conveying ink around an ink circuit between components. The other of the interfacing surfaces is configured to close and seal the channels. A plurality of ports is provided in fluid communication with the channels, the circuit components being connectable to the ports. The manifold assembly provides for a compact and neat arrangement free of many tubes and pipes. The lower number of connections significantly reduces the risk of leakage.04-14-2011
20110254902PLUG CONNECTION FOR AN INK SUPPLY - A plug connection for an ink supply, which has an ink supply connector, allows removable connection of the ink supply to an ink-consuming component that carries a rapid action cartridge coupling that forms a fluid connection with the ink supply connector. An ink connection holder is attachable to the ink supply connector and has an opening therein receives the rapid action cartridge coupling. An unlocking element releasable holds the ink connection holder to the ink supply connector when the rapid action cartridge coupling is inserted therein. The ink connection holder has a guide for the rapid action cartridge coupling, and each of the guide and the rapid action cartridge coupling are coded, with complementary mechanical codings, so that the ink connection holder can receive only an appropriately coded rapid action cartridge coupling.10-20-2011
20110080455FLUID COUPLING - A fluid coupling for establishing a sealed connection between a first conduit and a second conduit. The second conduit has a seal seat and a compression member. The compression member is movable relative to the seal seat. A seal is positioned in the seal seat. An engagement mechanism moves the compression member toward the seal seat to compress the seal to form a sealed fluid connection. The engagement mechanism has an input arm hinged to the compression member at a hinge connection. The input arm has a compression lever fixed at an angle to the longitudinal extent of the input arm. The input arm is arranged to push against the compression member as the input arm rotates about the hinge connection to the compression member. The compression member in turn pushes against the second conduit to move the second conduit relative to the first conduit, until the input arm reaches a predetermined angle about the hinge where the compression lever engages the second conduit such that further rotation of the input arm moves the compression member relative to the second conduit to compress the seal.04-07-2011
20110096127LIQUID SUPPLY APPARATUS AND LIQUID-CONSUMING APPARATUS - A liquid supply apparatus configured to supply a liquid for a liquid-consuming apparatus, includes: a liquid container including a storage chamber which stores the liquid and an engaging portion which is provided on an outer surface of the liquid container; and an attaching section to which the liquid container is attachable, which is formed with an opening, and which includes: a holding member configured to have an attitude which is changable between a first attitude and a second attitude; a cover configured to selectively have an open attitude for opening the opening and a close attitude for closing the opening; and a closing-preventive member on the cover and configured to prevent the cover from having the close attitude when the holding member has an attitude different from the first attitude.04-28-2011
20100110152Liquid Discharge Apparatus - A liquid discharge apparatus includes a liquid discharge head which reciprocates in a first direction on a predetermined plane and which discharges the liquids; liquid supply sources which store the liquids; flexible tubes which are arranged in a state of being bent and separated from each other and each of which constructs a part of a liquid flow passage; and a regulating member which is arranged on an outer circumferential side of the bent tubes and which regulates movement of the tubes, and connecting ports of the liquid discharge head, to which first ends of the flexible tubes are connected, are arranged in a second direction on the plane; the tubes are arranged in a third direction intersecting the predetermined plane at fixed portion of the tubes; and the regulating member has accommodating sections which accommodate the flexible tubes respectively.05-06-2010
20100220161Modular Ink Delivery Assembly - An ink delivery assembly for delivering ink from an ink supply unit to an inkjet printhead includes an elongate fluid channel member defining a plurality of longitudinally arranged parallel open channels, the elongate fluid channel member made up of a plurality of interconnected fluid channel modules; a lid portion for capping the elongate fluid channel member, the lid portion defining a plurality of ribs received in the open channels of the fluid channel member; and a plurality of spaced apart sets of outlets defined through the lid portion from a first face of the lid portion to a second opposing face of the lid portion, each outlet of each set being in fluid communication with a respective one of the channels.09-02-2010
20100214375APPARATUS FOR REFILLING AN INK CARTRIDGE FOR AN INKJET PRINTER - An apparatus for refilling an ink cartridge (08-26-2010
20100214380Apparatus for Reducing Crosstalk in the Supply and Return Channels During Fluid Droplet Ejecting - A fluid droplet ejection apparatus includes a substrate having a fluid inlet passage, a plurality of nozzles, and a plurality of flow paths each fluidically connecting the fluid inlet passage to an associated nozzle of the plurality of nozzles. Each flow path includes a pumping chamber connected to the associated nozzle and an ascender fluidically connected between the fluid inlet passage and the pumping chamber. The ascender is located proximate to an outside edge of the fluid inlet passage.08-26-2010
20100214377PRESSURE-REGULATING VALVE AND LIQUID DROPLET EJECTION APPARATUS HAVING THE SAME - An internal wall of a secondary chamber excluding one surface includes a flat wall portion with a secondary-chamber-side opening of the communication flow passage being formed in the center portion thereof; a conforming wall portion with which a diaphragm deformed maximally in the minus direction makes conforming contact, the conforming wall portion being connected to the outside of the flat wall portion and having an outflow opening communicating with an outflow port formed at the bottom of the conforming wall portion; and a flow passage groove extending upward from the flat wall portion to cut into the conforming wall portion.08-26-2010
20100214376INK TUBE FOR INKJET PRINTER - Disclosed is an ink tube for ink-jet printers, which has excellent flexibility and workability, while being small in compression set as well as in water vapor permeability and air permeability. Specifically, an ink tube for ink-jet printers is made from a thermoplastic elastomer composition which contains a rubber component containing a butyl rubber at a ratio of not less than 30% by mass but not more than 80% by mass, not less than 5 parts by mass but not more than 50% parts by mass of an olefin thermoplastic resin per 100 parts by mass of the rubber component, and not less than 10 parts by mass but not more than 100 parts by mass of a hydrogenated styrene thermoplastic elastomer per 100 parts by mass of the rubber component. In this thermoplastic elastomer composition, the rubber component is finely dispersed by dynamic crosslinking.08-26-2010
20080218565CARTRIDGE UNIT HAVING MULTIPLE INK STORAGE CAPACITY - A cartridge unit arranged for use in a print engine for an inkjet printer is provided. The cartridge unit has a body portion having ink storage compartments and a pagewidth printhead assembly configured to receive ink from ink storage compartments and distribute it to nozzles arranged in use to deliver the ink onto passing print media. The print engine has a cradle which has a body which removably receives the cartridge unit and is configured to control the operation of the printhead assembly for printing. The ink storage compartments comprise absorption material which stores the ink therein under capillary action for supply to the nozzles. The cradle is configured to be secured to the inkjet printer to receive print media from a media input tray and to deliver printed media to a media output tray.09-11-2008
20080218564Inkjet recording apparatus - An inkjet recording apparatus that records an image by discharging ink from an inkjet recording head is disclosed. The inkjet recording apparatus includes a disposal liquid tank that accommodates disposal ink that is discharged from the inkjet recording head for purposes other than recording, a mixing member that mixes the disposal ink accumulated in the disposal liquid tank, and a cleaning unit that cleans the mixing member.09-11-2008
20100194833REFILL UNIT FOR FLUID CONTAINER - A refill unit for a fluid container is provided. The unit has a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the fluid container, a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and a plunger having a toothed thread which engages with a screw thread provided in an internal wall of the housing, the ejector having a drive gear so that actuation of the drive gear imparts rotation to the toothed thread so as to rotate the plunger within the screw thread of the housing to incrementally eject fluid from the fluid reservoir when the drive gear is actuated by operative engagement of the fluid container with the housing.08-05-2010
20100194832REFILL UNIT FOR INCREMENTALLY FILLING FLUID CONTAINER - A refill unit for a fluid container is provided. The unit has a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the fluid container, a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly having a piston and cylinder reservoir, said piston having a thread which engages a screw thread in an internal wall of the cylinder, the piston rotationally biased by a wound spring and the ejector assembly having a pawl-and-ratchet detent preventing the biased piston threading into the reservoir until the pawl is actuated by operative engagement of the fluid container with the housing to incrementally eject fluid from08-05-2010
20090322833LIQUID EJECTION APPARATUS - A liquid ejection apparatus includes liquid cartridges, each of which includes a liquid container and a pressure chamber, the liquid container having a flexible portion and storing liquid therein, and the pressure chamber applying pressure to the flexible portion of the liquid container; a liquid ejection head, which ejects the liquid; liquid flow paths, which communicate the liquid containers with the liquid ejection head; and an air supply member, which supplies pressurized air to the pressure chambers for compressing the flexible portions so as to supply the liquid from the liquid containers to the liquid flow paths. The air supply member includes: a distribution member, which has an air intake portion for introducing the pressurized air, and air outlet portions for distributing the pressurized air to the liquid cartridges, and branch flow paths, which respectively communicate the air outlet portions with the pressure chambers of the liquid cartridges.12-31-2009
20110148997INK JET RECORDING APPARATUS - According to one embodiment, an inkjet recording apparatus includes a plurality of inkjet heads, a common supply pipe, a common collection pipe and an ink tank device. The common supply pipe includes an upper inner wall from one end side in a longitudinal direction to the other end side, which is inclined with respect to a horizontal direction from the one end side to the other end side if an ink flow direction and opposite direction of a gravitational force are defines as positive axes. The common collection pipe is supplied with the ink from the common supply pipe at one end side in the longitudinal direction. The ink tank device supplies the ink to the one end side of the common supply pipe, and collects the ink from the common collection pipe.06-23-2011
20100020141INK TANK AND RECORDING APPARATUS - An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.01-28-2010
20100020138LIQUID SUPPLY DEVICE AND LIQUID EJECTING APPARATUS - A liquid supply device includes a supply pump in a liquid supply passage, a first unidirectional valve upstream from the supply pump and a second unidirectional valve downstream from the supply pump. Constituent members each include a single passage forming member provided with a part or the whole of the liquid supply passage. The constituent members are laminated and formed such that a partial passage of the liquid supply passage permitting the first unidirectional valve to communicate with the supply pump and a partial passage thereof permitting the supply pump to communicate with the second unidirectional valve are formed in the laminated state. The supply pump and the first and second unidirectional valves are disposed on the substantially same plane by laminating the constituent members. The first unidirectional valve communicates with the supply pump and the supply pump communicates with the second unidirectional valve by the partial passage.01-28-2010
20100020140LIQUID SUPPLY DEVICE AND LIQUID EJECTING APPARATUS - A liquid supply device includes a liquid supply passage which supplies a liquid from an upstream side where it is supplied from a liquid supply source to a downstream side where it is consumed. A passage forming member has a shape in which the liquid supply passage is formed. A flexible diaphragm forming member has a diaphragm forming part of a wall surface of a pump chamber in the liquid supply passage and is displaceable to change the volume of the pump chamber. A lamination structure is formed by laminating the diaphragm forming member and the passage forming member to form the pump chamber between facing surfaces thereof. A portion corresponding to the outer circumference of the diaphragm forming member has an outer circumference sealing portion preventing liquid, which has leaked from the liquid supply passage to a space between the facing surfaces, from flowing outside the lamination structure.01-28-2010
20100020139LIQUID SUPPLY DEVICE, LIQUID EJECTING APPARATUS, AND LIQUID SUPPLYING METHOD - A liquid supply device includes a liquid supply passage which supplies a liquid from an upstream side on which the liquid is supplied from a liquid supply source to a downstream side on which the liquid is consumed. A pump is provided with a pump chamber in the liquid supply passage. A displacement member forms a part of a wall surface of the pump chamber and is displaceable to increase or decrease the volume of the pump chamber. An urging member urges the displacement member in a direction decreasing the volume of the pump chamber. A displacement mechanism displaces the displacement member in a direction increasing the volume of the pump chamber against an urging force of the urging member upon driving the displacement mechanism. Upon stopping the drive of the displacement mechanism, the pump chamber remains in a pressurized state by the urging force of the urging member.01-28-2010
20100020137LIQUID SUPPLY DEVICE AND LIQUID EJECTING APPARATUS - A liquid supply device includes: a supply pump which is provided in a liquid supply passage; a first unidirectional valve which is provided on an upstream side of the supply pump; a second unidirectional valve which is provided on a downstream side of the supply pump; a first member; a second member; and a flexible member. The supply pump and the first and second unidirectional valves are formed such that the flexible member is interposed between the first and second members and held by locking a locking unit in the state where the flexible member is interposed between the first and second members.01-28-2010
20100020136INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME - Provided are an inkjet printhead and a method of manufacturing the same. The inkjet printhead includes: a substrate having an ink feed hole extending therethrough; a chamber layer including a plurality of ink chambers above the substrate; a nozzle layer including a plurality of nozzles above the chamber layer; and at least one support beam formed in the substrate to connect inner walls of the ink feed hole.01-28-2010
20090244215PRINT HEAD UNIT WITH PRINTHEAD AND TRANSPORT ROLLERS - A print head unit has an elongate print head integrated circuit. An ink supply unit defines an elongate print head slot in which the print head integrated circuit is received. Ink supply vias supply ink to the print head slot. Longitudinally extending channels are in fluid communication with the print head integrated circuit through the vias and longitudinally extending aperture slots provide for the snap-in insertion of rollers for the transport of print media operatively with respect to the print head integrated circuit during printing.10-01-2009
20110115857SEALING DEVICE FOR FLUID RESERVOIR - A sealing device is disclosed that includes a latching feature configured to facilitate latching of the sealing device to a fluid reservoir; a first region configured to seal or substantially seal a fluid-discharge port on the fluid reservoir from fluid loss when the sealing device is latched to the fluid reservoir; and a second region configured to protect a circuit device on the fluid reservoir when the sealing device is latched to the fluid reservoir. Accordingly, the presently disclosed sealing device provides an effective solution to not only sealing the fluid-discharge ports on the fluid reservoir, but also protecting the circuit device.05-19-2011
20080211887INKJET PRINT HEAD - An inkjet print head has a wall that separates an interior of the inkjet print head from an exterior of the inkjet print head. A channel passes completely through the wall for receiving a conduit therein. A trough is formed on an exterior of the component. A sidewall of the trough has an opening that aligns with the channel. The opening is for receiving the conduit therethrough before the channel receives the conduit.09-04-2008
20120306972INJECTION MOLDING METHOD, INJECTION-MOLDED PRODUCT, OPTICAL ELEMENT, OPTICAL PRISM, INK TANK, RECORDING DEVICE, AND INJECTION MOLD - There is provided an injection molding method in which a molten resin, which is injected into a molding space formed between a fixed side mold including a movable insert and a movable side mold, is cooled in a state in which a surface of the molten resin comes into contact with the movable insert and thereby the surface is solidified, and internal solidification of the molten resin is completed by cooling the molten resin in a state where the molten resin and the movable insert are separated from each other by moving the movable insert before the internal solidification of the molten resin, whose surface is solidified in a state in which the surface comes into contact with the movable insert, is completed.12-06-2012
20110148998LIQUID SUPPLYING AND COLLECTING APPARATUS - An ink supplying and collecting apparatus includes a case, ink cartridges detachably attached to the case, and a collecting container detachably attached to the case. The ink cartridges supply ink to a recording head of a printer via ink supply tubes. The collecting container collects ink drained from the recording head via an ink drain tube. The case is located outside of and is separate from the printer. Thus, the sizes and shapes of the ink cartridges and the collecting container can be freely designed.06-23-2011
20110304676FLUID EJECTING APPARATUS - A fluid ejecting apparatus has a configuration in which the volume of a reference space having an upper limit at the bottom of the fluid outlet port in the vertical direction in the fluid tank in a first state for ejecting the fluid from the fluid ejecting head to the fluid receiving unit is smaller than the volume of a space having an upper limit at the bottom of the fluid inlet port in the vertical direction in the fluid tank in a second state that is inclined by 90 degrees with respect to the first state.12-15-2011
20110304675FLUID EJECTING APPARATUS - The fluid ejecting apparatus includes a fluid ejecting head that ejects fluid, a fluid receiving unit that receives the fluid ejected from the fluid ejecting head, a fluid absorbing unit that is connected to the fluid receiving unit via a flow channel and absorbs the fluid, a pump that is provided on the flow channel and pumps the fluid from the fluid receiving unit to the fluid absorbing unit and an actuating unit that distributes the fluid ejected from the flow channel to the fluid absorbing unit in conjunction with actuation of the pump.12-15-2011
20110050818PRINTHEAD ASSEMBLY INCORPORATING GAS DUCT - A printhead assembly includes an ink distribution assembly including an ink distribution molding, the ink distribution molding including a plurality of ducts; at least one printhead integrated circuit in fluid communication with the ink distribution assembly; and a rotary platen having at least three surface, each surface for providing one of a platen surface, capping portion, and a blotting portion. The ink distribution assembly delivers delivers ink via one or more of the plurality of ducts to the at least one printhead integrated circuit, and delivers a gas into a vicinity of a printing surface region of the at least one printhead integrated circuit via at least one of the plurality of ducts. The ink distribution molding includes a plurality of ink inlet ports in fluid communication with an ink cassette via a plurality of ink hoses.03-03-2011
20110050817LIQUID-JETTING APPARATUS - A liquid-jetting apparatus includes: a liquid-jetting head which jets the liquid; a liquid tank which stores the liquid; a first flow passage which connects the liquid-jetting head and the liquid tank; a gas-liquid separating section which is arranged on the first flow passage and which separates the liquid and a gas in the liquid; a gas communication passage which connects the gas-liquid separating section and the liquid tank and through which the gas in the gas-liquid separating section is transported to the liquid tank; a second flow passage which communicates an upstream side and a down stream side of the gas-liquid separating section; and a switching mechanism which selectively switches between a first passage route for supplying the liquid through only the first flow passage and a second passage route for supplying the liquid through the second flow passage.03-03-2011
20110050816IMAGE FORMING APPARATUS - An image forming apparatus is disclosed that includes the pressure adjusting valve including a movable member movably disposed in the pressure adjusting valve, a first throttling part; and a second throttling part, wherein the second throttling part is formed as a gap between an internal wall of the frame of the pressure adjusting valve and the movable member, an internal fluid resistance of the pressure adjusting valve varies in response to the flow rate of the liquid, and when the liquid is discharged from the nozzle, the liquid is fed from the liquid tank to the recording head by the liquid feeding unit in a state where the recording head is in fluid communication with the liquid tank via the pressure adjusting valve.03-03-2011
20110050815FLOW-PASSAGE CONNECTING DEVICE AND LIQUID EJECTING APPARATUS INCLUDING THE SAME - A flow-passage connecting device for connecting flow passages of first and second members, including: a joint to be attached at one end to an end portion of the passage of the first member and to be connected at the other end to the passage of the second member, the joint having a hollow space through which a fluid flows; a joint support portion for supporting the joint when the joint is attached, such that a positional adjustment of the joint in a direction perpendicular to a joint attachment direction is permitted within a first position-adjust range; and a position-adjust-range limiting portion disposed distant from the end portion of the passage of the first member in a direction opposite to the attachment direction and configured to limit the positional adjustment of the joint in the perpendicular direction within a second position-adjust range smaller than the first range when the joint is attached.03-03-2011
20110050814IMAGE FORMING APPARATUS WITH A STRUCTURE FOR PREVENTING BUBBLES FROM ENTERING RECORDING HEAD OR REMAINING IN A FLUID SUPPLY CHANNEL - An image forming apparatus includes plural heads each having a nozzle configured to discharge a droplet of a recording fluid; a distributing member to which the plural heads are attached, the distributing member having an inlet portion, a supply channel portion, and a common fluid chamber communicated with the inlet portion and configured to supply the recording fluid to the plural heads; and a fluid containing unit configured to supply the recording fluid to the distributing member via the inlet portion and the supply channel portion. The distributing member includes a flow-directing wall disposed between the supply channel portion and the common fluid chamber.03-03-2011
20120038717PRESS INKING SYSTEM WITH KEY SHARING PROVISION - Disclosed herein is an ink rail assembly having a key sharing provision. The ink rail assembly includes a page pack having an ink inlet for receiving ink from an ink source and an ink outlet; and an ink rail fluidly coupled to the page pack ink outlet. The ink rail includes at least two ink keys for delivering ink to a drum of a printing press, and a diverter assembly in fluid communication with the at least two ink keys and to the page pack to control the flow of ink from the page pack and selective divert the flow of ink between the at least two ink keys.02-16-2012
20120098898METHOD AND SYSTEM FOR INK DELIVERY AND PURGED INK RECOVERY IN AN INKJET PRINTER - An inkjet printing apparatus is provided with a one-way valve to enable a single conduit to supply ink to an ink reservoir and withdraw purged ink from a receptacle into the ink reservoir. A bi-directional pump is operated in both directions in an alternating manner to withdraw ink from the receptacle when supplying the ink reservoir with ink.04-26-2012
20120044305Installing Fluid Container in Fluid Ejection Device - A fluid ejection device ejecting a fluid, the fluid ejection device includes: a fluid ejection unit, a main chassis case, a fluid-containing pack, and a container case. The fluid ejection unit ejects a fluid onto an ejection target. The main chassis case houses the fluid ejection unit. The fluid-containing pack contains a fluid for ejection. The container case houses the fluid-containing pack. The container case is pivotably attached to the main chassis case and openable by rotation about a rotation shaft. The fluid ejection device further comprises a fluid passage, including a delivery tube with a bent section, in which fluid flows from the fluid-containing tank to the fluid ejection unit through the container case. The shape of the bent section changes by the opening and closing of the container case.02-23-2012
20110063380INK JET HEAD - According to one embodiment, an ink jet head includes a base portion and a plurality of nozzles configured to discharge ink formed in one end side of the base portion, an actuator including a plurality of pressure chambers corresponding to the plurality of nozzles, is provided on a first surface which is an end surface of the one end side of the base portion, ink guides which form ink channels are formed on a second surface which is a main surface of the base portion and crosses with the first surface, and a wiring connected to the actuator is formed on a third surface which is another main surface opposite to the second surface of the base portion.03-17-2011
20110063381INK SUPPLYING METHOD - An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.03-17-2011
20110316941Ink path structure and inkjet head including the same - There is provided an ink path structure, including: a pressure chamber storing ink introduced thereinto to discharge the ink to a nozzle; and a path discharging the ink by pressure generated within the pressure chamber and then supplying the ink to the pressure chamber and being repeatedly expanded and contracted in a direction toward the pressure chamber to attenuate a residual pressure wave remaining in the pressure chamber.12-29-2011
20110316944PRINTHEAD CARTRIDGE FOR RELEASABLE MOUNTING IN A PRINTER - A printhead cartridge for releasable mounting in a printer. The printhead cartridge includes a pagewidth printhead and an ink manifold defining multiple fluid flow paths in fluid communication with respective ink channels in the printhead. The ink manifold includes a plurality of openings for detachable connection with conduits in an interface of the printer; a plurality of shut off valves at each of the openings respectively, each shut off valve having a biasing member configured for biasing each shut off valve into an open position; an actuator biased towards a closed position by a resilient element such that the actuator holds all the shut off valves closed when in the closed position. The actuator is configured for engagement with the interface such that movement of the openings into connection with the interface simultaneously moves the actuator to an open position wherein the shut off valves are held open.12-29-2011
20110316943LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - The flow path unit includes a flow path unit main body to which the liquid supply needle is attached on the upstream side and including a flow path portion with the liquid flow path formed therein, the flow path portion projecting from a lower face of the flow path unit main body, and a cover member fixed to the flow path unit main body and including a wall portion formed so as to surround the flow path portion, the wall portion having a height that reaches the case member.12-29-2011
20110316942LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS INCLUDING THE SAME - A liquid ejection head including: a channel member including: a ejection openings; a liquid channel communicated with the ejection openings; and a liquid-supply opening for supplying liquid to the liquid channel; an ejection-energy applying portion configured to apply an ejection energy to the liquid in the liquid channel; an electronic part connected to the ejection-energy applying portion; a cover member defining an accommodating space with the channel member, the accommodating space accommodating the electronic part and at least a part of a liquid-supply pipe connected to the liquid-supply opening; and a liquid absorbing member disposed in the accommodating space so as to cover at least a part of a surface of the liquid-supply pipe; wherein the cover member has a through hole formed therein for communicating the accommodating space with an outside of the cover member; and wherein a part of the liquid absorbing member is exposed to the outside of the cover member from an entirety the through hole.12-29-2011
20120044303METHOD AND APPARATUS FOR PURGING AND SUPPLYING INK TO AN INKJET PRINTING APPARATUS - An ink delivery system is configured to supply ink to an ink reservoir fluidly coupled to inkjet ejectors and remove ink from a receptacle mounted proximate to the ink reservoir using a single conduit. The ink reservoir is configured to prevent air from being pulled through a reservoir membrane, and a reversible pump is configured to produce positive and negative pressure in the conduit to supply ink to the ink reservoir and remove ink from the receptacle, respectively.02-23-2012
20120044306Installing Fluid Container in Fluid Ejection Device - A fluid ejection device ejecting a fluid, the fluid ejection device includes: a fluid ejection unit, a main chassis case, a fluid-containing pack, and a container case. The fluid ejection unit ejects a fluid onto an ejection target. The main chassis case houses the fluid ejection unit. The fluid-containing pack contains a fluid for ejection. The container case houses the fluid-containing pack. The container case is pivotably attached to the main chassis case and openable by rotation about a rotation shaft.02-23-2012
20120001989INKJET PRINTER WITH FLOAT VALVE PRESSURE REGULATOR - An inkjet printer includes: an ink reservoir; a printhead having an ink inlet and an ink outlet; an upstream ink conduit connected to the ink inlet; a downstream ink conduit connected to the ink outlet; and a pressure-regulating chamber. The pressure-regulating chamber includes: an inlet port connected to the ink reservoir via a supply conduit; an outlet port connected to the upstream ink conduit; a vent open to atmosphere; and a float valve for maintaining a set level of ink in the pressure-regulating chamber. The float valve includes: an arm pivotally mounted about a pivot; a float mounted at one end of said arm; and a valve head connected to the arm for sealing engagement with a valve seat at the inlet port.01-05-2012
20120001987Pressure purging device for inkjet recording apparatus - [Problem to be Solved] To provide a pressure purging device for an inkjet recording apparatus enabling pressure-purging only designated one of a plurality of recording heads and capable of preventing ink from leaking during the pressure purging.01-05-2012
20120001988Ink supply device for inkjet recording apparatus - [Problem to be Solved] To provide, in an inkjet recording apparatus including a plurality of recording heads, an ink supply device for the inkjet recording apparatus capable of efficiently humidifying ink flowing through the recording heads to control the viscosity of the ink.01-05-2012
20080309738External ink supply and balancing system for inkjet printer - An external ink supply and balancing system for inkjet printer, which mainly comprises a reflow system of each ink container of an inkjet printer be blocked and to have each ink container be connected to a respective external ink bottle through a respective L-shaped connector and flexible ink supply tube and also to be an air bag connected to an air discharge connector at each ink bottle through a flexible tube for collecting exhaust air so that when the inkjet printer runs an ink circulation flow, the ink bottles supply inks to the respective ink containers and guide exhaust air out of the ink containers to the air bag.12-18-2008
20120120165FLUID CONTAINER HAVING FLUID INTERFACE FOR MICRO-FLUID APPLICATIONS - A consumable supply item for an imaging device holds an initial or refillable volume of ink. Users orient a housing to deplete the ink in a direction of gravity toward a bottom of the interior. The imaging device has a rotating latch. The latch mates with a top of the supply item to keep in place the supply item. Fluid exit and air venting ports reside on a side of the housing that gets inserted first into a container slot of the imaging device. A space separates the ports so a biasing member can push against the housing to assist in ejecting the supply item upon users activating the latch. The ports are separated a maximum distance to facilitate the ejection, while the exit port remains near a bottom to minimize stranding ink. Further embodiments note arrangements, distances and consumer features, to name a few.05-17-2012
20120044304LIQUID EJECTING APPARATUS - A liquid-feeding pump that feeds liquid, which is sucked out from a liquid container, into an ejection nozzle is provided. In addition, a circulation pump that discharges the liquid, which is sucked out from the liquid container, to the liquid container is provided. Moreover, a decompression pump, which generates a pressure for operating the liquid-feeding pump, is used as a drive source of the circulation pump. Therefore, a driving mechanism for the circulation pump need not be additionally provided. Accordingly, it is possible to simplify a configuration of a liquid ejecting apparatus while being capable of agitating the inner portion of the liquid container by using the circulation pump.02-23-2012
20120056952PRINTHEAD WITH FLUID FLOW CONTROL - A printhead is provided having a plurality of ejection nozzles defined on a substrate, each nozzle having a fluid chamber and ejection port, a plurality of supply channels defined through the substrate, a plurality of feed channels connecting the supply channels to the chambers thereby supplying fluid from the supply channels to the chambers, and a plurality of ejection actuators positioned in respective ones of the chambers for causing ejection of the supplied fluid from the ejection ports. Each feed channel is long and narrow relative to the dimensions of the ejection nozzles such that the fluid in the chamber is restricted from flowing into the feed channels during fluid ejection by viscous drag generated in the feed channels.03-08-2012
20120013687LIQUID ACCOMMODATING CONTAINER, TANK UNIT, AND LIQUID EJECTING SYSTEM - A liquid accommodating container in which in a use position, a port opened to the air is provided at a position that is closer to an air chamber uppermost surface and is included in a first corner portion, an air-side opening is provided at a position that is closer to an air chamber lowermost surface and is included in a second corner portion which is at a diagonal position to the first corner portion, and a liquid-side opening is provided at a position satisfying the following conditions (a) and (b), (a) a position closer to a liquid chamber lowermost surface with respect to the vertical direction in the use position and (b) a position which is included in the second corner portion that is at a position equivalent to a diagonal position to the first corner portion.01-19-2012
20120056951PRINTHEAD ASSEMBLY INCORPORATING INK DISTRIBUTION ASSEMBLY - A printhead assembly includes an ink distribution assembly including an ink distribution molding, the ink distribution molding including a plurality of first ducts; at least one printhead integrated circuit in fluid communication with the ink distribution assembly; and a rotary platen having at least three surface, each surface for providing one of a platen surface, capping portion, and a blotting portion. The ink distribution assembly further includes a plurality of second ducts acutely angled with respect to the plurality of first ducts, a plurality of transfer ports facilitating fluid communication between the plurality of first ducts and the plurality of second ducts, and a plurality of ink inlet ports facilitating fluid communication between an ink cassette and the plurality of first ducts.03-08-2012
20120056950METHOD FOR PRODUCING LIQUID EJECTING RECORDING HEAD - A liquid ejecting recording head using a flow duct material which includes an oxetane resin composition that contains, as necessary components, an oxetane compound having at least one oxetanyl group in a molecule, and a cationic photopolymerization initiator.03-08-2012
20120056949LIQUID SUPPLY DEVICE AND LIQUID JETTING SYSTEM - A liquid supply device 03-08-2012
20120056948Solution storage tank and inkjet printer head assembly with the same - Disclosed herein is an inkjet printer head assembly. The inkjet printer head assembly according to exemplary embodiments of the present invention includes: a storage unit having an inner space in which a solution is stored; a fluid supplier supplying fluid to the storage unit; and an agitator provided in the storage unit and driven by the fluid supplied to the storage unit from the fluid supplier to agitate the solution.03-08-2012
20090046131FUEL RAIL INK DELIVERY - A print head has an array of jets to transfer ink from the print head to a printing substrate, at least one ink supply rail to provide ink, and at least one injector to deliver ink from the ink supply rail to the print head. A printer has at least one supply to provide ink, at least one print head to transfer ink onto a printing substrate, an ink supply rail to provide ink to the print head, and an injector to deliver ink from the ink supply rail to the print head. A printing system has an array of print heads, each having at least one injector, at least one ink supply rail to deliver ink to the print heads, at least one supply to supply ink to the ink supply rail, and a transport system to transport a web substrate past the array of print heads.02-19-2009
20090135233Ink jet recorder and ink filling method - An ink jet recorder that includes line heads (05-28-2009
20090207215TOOL FOR ASSISTING THE REMOVAL FROM AN INK JET PRINTER OF A CONTAINER USED TO SUPPLY FLUID TO THE PRINTER08-20-2009
20120026255LIQUID INK DELIVERY SYSTEM INCLUDING A FLOW RESTRICTOR THAT RESISTS AIR BUBBLE FORMATION IN A LIQUID INK RESERVOIR - A fluid ink delivery system includes a receptacle positioned proximate to a plurality of inkjet ejectors, and an ink supply in fluid communication with the receptacle. Ink held in the receptacle may be withdrawn under negative pressure by a pump in the ink supply. A flow restrictor in fluid communication with the pump limits the negative pressure level applied by the pump to be less than a pressure that draws air across a porous member in the receptacle.02-02-2012
20120026254INK SUPPLY DEVICE OF INKJET PRINTER AND BACKFLOW SHUTOFF MECHANISM OF THE SAME - An ink supply device for an inkjet printer is provided with a backflow shutoff mechanism (02-02-2012
20120062661INK COMPOSITIONS AND METHODS OF USE - An ink composition includes an aqueous dispersion of particles of a first material and separate particles of a second material. The first material contains an oxide, sulfide, or selenide of a magnetic metal. The ink is formulated to exhibit, after application to a solid substrate, a degree of metallic luster enhanced by the presence of the second material.03-15-2012
20120062659LIQUID DISCHARGE HEAD UNIT AND IMAGE FORMING APPARATUS - A liquid discharge head unit includes a liquid container tank storing a liquid and a head discharging liquid droplets from its nozzles. The head includes a common channel supplying the liquid to liquid-chambers communicating with the nozzles, and the common channel includes a supply port introducing the liquid and a discharge port discharging the liquid. The liquid container tank includes a container including upstream and downstream chambers separated via a filtering member, a supply path supplying the liquid from the downstream chamber to the supply port of the head, a discharge path discharging the liquid obtained from the discharge port of the head, a communication path via which the downstream chamber communicates with the discharge path, and a communication path via which the upstream chamber communicates with the discharge path, where a fluid resistance of the second communication path is higher than that of the first communication path.03-15-2012
20120062660INK FILLING METHOD - In an ink filling method according to the present invention, a suction arrangement having a pump is air-tightly coupled to a head unit having a plurality of ink supply ports, and sucking is performed by using the pump, thereby supplying an ink stored in an ink supply source to a plurality of the ink supply ports via a flow channel arrangement including one ink flow channel that communicates with the ink supply source and a plurality of branched flow channels that branch out from the ink flow channel and communicate with corresponding ones of the ink supply ports. The sucking is stopped from a time point when one of the branched flow channels is entirely filled with the ink until air in the flow channel arrangement moves in a branching portion, and the sucking is resumed when the air has moved in the branching portion.03-15-2012
20120154491BIASED WALL INK TANK WITH CAPILLARY BREATHER - An ink tank including a reservoir for holding ink, the reservoir including a flexible wall for adjusting an internal volume of the reservoir; a biasing element for applying a force to the flexible wall that tends to increase the internal volume of the reservoir; an ink supply port for delivering ink from the reservoir to a printhead; and a breather element, at least a portion of which is disposed inside the reservoir, including a capillary material in contact with ink in the reservoir, wherein the breather element is configured to allow air to enter the reservoir in response to an internal pressure of the reservoir being less than atmospheric pressure outside the ink tank by an amount that is related to a property of the biasing element and a capillary pressure of the breather element.06-21-2012
20110085010PRINTHEAD ASSEMBLY WITH MINIMAL LEAKAGE - A printhead assembly includes an ink manifold having a plurality of ink outlets defined in a manifold bonding surface; one or more printhead integrated circuits, each printhead integrated circuit having a plurality of ink inlets defined in a printhead bonding surface; and an adhesive film sandwiched between said manifold bonding surface and said one or more printhead bonding surfaces, said film having a plurality of ink supply holes defined therein, each ink supply hole being aligned with an ink outlet and an ink inlet. The adhesive film is a laminated film comprising a central polymeric film sandwiched between a first adhesive layer and a second adhesive layer, the first adhesive layer has a melt temperature lower than that of the second adhesive layer.04-14-2011
20090141094LIQUID DROPLET JETTING APPARATUS - A printer includes a first head in which first nozzles are formed, a second head in which second nozzles located at a higher position than the first nozzle are formed, and an ink cartridge positioned at a lower position than the first and second nozzles. Moreover, the first head is connected to the ink cartridge via a tube, and the second head is connected to the first head via a tube. Accordingly, the second head is connected to the ink cartridge via the first head. It is possible to shorten the tubes by connecting serially the ink cartridge and the two heads, and to prevent from breaking simultaneously a meniscus in the nozzles of both the heads located at different height positions.06-04-2009
20090141093IMAGE FORMING APPARATUS - An image forming apparatus including a body, a print head including a nozzle part having a length corresponding to a width of a printing medium, and a regulator provided separately from the print head and mounted to the body, the regulator serves to adjust a negative pressure of ink which is to be supplied into the print head.06-04-2009
20110090293DROPLET DISCHARGE APPARATUS - A droplet discharge apparatus includes: a plurality of tanks for respectively storing a plurality of types of function liquids; a plurality of pressure control valves for controlling a pressure of the plurality of types of function liquids supplied from the tanks to a predetermined pressure; a plurality of droplet discharge heads for respectively discharging the plurality of types of function liquids let out from the pressure control valves in the form of droplets; and a plurality of second supply tubes for respectively supplying the plurality of types of function liquids from outlets of the pressure control valves to inlets of the droplet discharge heads. Distances between the outlets and the corresponding inlets are different from one another depending on the second supply tubes. Lengths of the second supply tubes for supplying the same type of the functional liquid are equalized.04-21-2011
20110090292INK-JET IMAGE RECORDING APPARATUS - An ink-jet image recording apparatus is configured so that a sufficient hydraulic head difference can be secured to prevent ink overflow, and a pump on an ink feeding path leading to a recording head is driven to feed an ink toward the head, thereby pressuring overloaded nozzles to set a pressure for the formation of suitable menisci.04-21-2011
20110102521INK SUPPLY SYSTEM WITH FLOAT VALVE - An ink supply system for an inkjet printer. The ink supply system includes an ink reservoir and a pressure-regulating chamber. The pressure-regulating chamber has an inlet port, an outlet port, an air vent open to atmosphere and a float valve for maintaining a predetermined level of ink in the chamber. The float valve is biased towards a closed position by a positive ink pressure from the ink reservoir at the inlet port.05-05-2011
20110102520Inkjet print head - There is provided an inkjet print head. The inkjet print head includes a pressure chamber storing ink drawn from a reservoir in order to be ejected through a nozzle, a restrictor provided as a path between the reservoir and the pressure chamber, and a stepped part provided inside the pressure chamber and creating variations in ink flow inside the pressure chamber.05-05-2011
20120169812CONSUMABLE SUPPLY ITEM, FLUID RESERVOIR AND RECIRCULATION SYSTEM FOR MICRO-FLUID APPLICATIONS - A consumable supply item for an imaging device holds an initial or refillable volume of ink. An interior retains the ink while exit and return ports define openings through a housing to fluidly communicate the interior to the imaging device. The opening of the return port is larger than the opening of the exit port. The design slows the return of fluid to the housing which minimizes air bubbles or frothiness in the fluid. During use, ink depletes toward a bottom surface of the interior beneath which the ink is prevented from occupying. A housing section below the interior retains a portion of the exit port so that a bottom of the opening of the exit port is substantially horizontally aligned with the bottom surface. It prevents stranding ink beneath the exit port. Further embodiments include port configuration, construction, and modular components, to name a few.07-05-2012
20120120164FLUID CONTAINER HAVING LATCHING INTERFACE FOR MICRO-FLUID APPLICATIONS - A consumable supply item for an imaging device holds an initial or refillable volume of fluid. Users orient a housing to deplete the fluid in a direction of gravity toward a bottom surface of the interior en route to an exit port. The imaging device has a rotating latch to keep in place the supply item during use05-17-2012
20100289856PRINTHEAD AND PRINTING APPARATUS - A printhead comprises a first ink chamber having an inlet port, to which ink from an ink supply source is supplied, a second ink chamber, to which the ink from the first ink chamber is supplied, a discharge orifice discharging ink from the second ink chamber, a first outlet port discharging fluid from the first ink chamber, a second outlet port discharging fluid from the second ink chamber, and an air-liquid separation unit which restricts liquid ejection and is provided at least either or both place between the first ink chamber and the first outlet port, or/and a place between the second ink chamber and the second outlet port, wherein flow resistance from the inlet port to the first outlet port is smaller than flow resistance from the inlet port to the second outlet port.11-18-2010
20100245497BUFFER AND LIQUID EJECTING APPARATUS - A buffer receiving and supplying liquid includes: a cylindrical cup having a bottom; and a flexible film forming a sealed space between the cup and the film, wherein one of a depressed portion and a projecting portion is formed at an open end of the cup, and wherein the film is attached to the open end and one of the depressed portion and the projecting portion along the surface thereof.09-30-2010
20100245496DROPLET EJECTION DEVICE AND METHOD FOR COLLECTING ADHERENT LIQUID - There is provided a droplet ejection device comprising: a droplet ejecting head comprising a droplet ejecting surface on which an ejecting aperture from which droplets are ejected and a collecting hole for collecting adherent liquid adhered to the droplet ejecting face are formed; and a collecting unit that causes the liquid to overflow to the droplet ejecting face through the collecting hole and collects the overflowed liquid through the collecting hole together with the adherent liquid.09-30-2010
20100245499INJECTION APPARATUS AND A VALVE DEVICE PROVIDED IN A PASSAGE - An ink jet type recording apparatus comprises a connection member which has a passage for leading ink to a recording head from an ink cartridge. In the passage, a valve member having a magnetic body is provided. A rotation member has a permanent magnet and is rotatable between a first position and a second position. When the rotation member is located in the first position, an attraction that can move the valve member in an opening direction of the passage acts between the magnet and magnetic body, and hence, the valve member opens the passage. When the rotation member is located in the second position, the attraction that can move the valve member does not act between the magnet and magnetic body, and hence, the valve member closes the passage.09-30-2010
20100245498FLUID SUPPLYING APPARATUS, FLUID EJECTING APPARATUS, AND FLUID SUPPLYING METHOD - A fluid supplying apparatus includes a fluid supplying passage through which fluid is supplied from a fluid supplying source, at an upstream side, toward a downstream side. A pump includes a pump chamber and a first displacement portion. A closing device closes the fluid supplying passage and includes a pressure chamber and a second displacement portion. The second displacement portion is displaced to increase or decrease capacity of the pressure chamber. The second displacement portion is displaced in a direction for decreasing the capacity of the pressure chamber in accordance with negative pressure that is applied from the downstream side of the fluid supplying passage to close the fluid supplying passage. A pressure reduction chamber is formed next to the pressure chamber and is partitioned from the pressure chamber. An opening device opens the fluid supplying passage and reduces internal pressure of the pressure reduction chamber.09-30-2010
20100245495DROPLET EJECTION DEVICE - A droplet ejection device includes a liquid ejection head, a supply flow path, a supply pump, and a supply flow path pressurizer. The supply flow path supplies the liquid to the head and for which a first depressurization threshold is specified in advance. The supply pump sucks the liquid, pressurizes the sucked liquid and supplies the sucked liquid to the head via the supply flow path, and keeps a pressure of liquid in the supply flow path near to a predetermined supply flow path target pressure. The supply flow path pressurizer pressurizes the pressure of liquid in the supply flow path if the pressure of liquid in the supply flow path falls to less than or equal to the first depressurization threshold.09-30-2010
20100245494LIQUID DROPLET JETTING APPARATUS AND IMAGE FORMING APPARATUS - A liquid droplet jetting apparatus includes a jetting unit equipped with plural head modules, a supply channel equipped with plural branching channels, first circulation limiting units, liquid storage units and external force applying units. The first circulating limiting units allow circulation of a liquid in a direction from a storage chamber to each of the head modules and limit circulation of the liquid in an opposite direction of the circulating direction. The liquid storage units are disposed between the circulation limiting units and the head modules. The liquid storage units store the liquid, and the volumes of the liquid storage units change due to external force. The external force applying units apply the external force to the liquid storage units such that the volumes of the liquid storage units become smaller and cause liquid droplets to be jetted from the nozzles.09-30-2010
20120127243FLUID EJECTION DEVICE AND FLUID STIRRING METHOD FOR THE SAME, AND FLUID STORAGE DEVICE AND FLUID STIRRING METHOD FOR THE SAME - A fluid storage device for storing a fluid, and a fluid ejection head for ejecting the fluid fed from the fluid storage device are provided. The fluid storage device is provided with a storage tank, and a spherical body formed of a magnetic material and provided inside the storage tank. Also provided are three or more attraction devices for attracting the spherical body; and a switching device for switching between attraction and non-attraction by the attraction devices according to a movement path selected from a plurality of movement paths based on a predetermined selection condition, and moving the spherical body inside the storage tank in the selected movement path.05-24-2012
20120127244METHOD OF SUPPLYING FLUID TO A FLUID EJECTION HEAD, FLUID SUPPLY MECHANISM, AND FLUID EJECTION DEVICE - A drop in the throughput of continuous printing operations caused by refilling a subtank with ink is suppressed. The control unit of an inkjet printer 05-24-2012
20100208010LIQUID JET RECORDING HEAD AND LIQUID SUPPLY METHOD - A liquid jet recording head includes liquid discharge ports, pressure chambers, and a substrate which has the discharge energy generating element, a liquid chamber for storing a liquid supplied to the pressure chamber, a pair of paths which are separated from the liquid chamber, and a liquid supply port communicating with the liquid chamber. A liquid inlet port communicating with one path of the pair of paths and a liquid outlet port communicating with the other path of the pair of paths are opened on one surface of the substrate. A liquid flow path for discharging the liquid from the liquid chamber to the pressure chamber via the liquid supply port, and a liquid flow path for circulating the liquid from the one path to each pressure chamber via the liquid inlet port, and further from each pressure chamber to the other path via the liquid outlet port are provided.08-19-2010
20120212549LIQUID INJECTING APPARATUS - Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.08-23-2012
20110181671LIQUID SUPPLY APPARATUS AND IMAGE RECORDING APPARATUS - A liquid supply apparatus configured to supply a liquid, including: a liquid container to store the liquid; an installing section which is formed with an opening and to which the liquid container is installable; and an urging member which urges the liquid container installed to the installing section toward the opening, and the installing section comprises a guide section extending from the opening in an insertion direction of the liquid container from the opening, a stopper which protrudes from the guide section in a direction perpendicular to an removal direction of the liquid container from the installing section; the liquid container comprises an guide objective section guided by the guide section, and a protrusion formed on the guide objective section and which abuts against the stopper to move the liquid container in the direction perpendicular to the removal direction when the liquid container is moved in the removal direction.07-28-2011
20110181670LIQUID JETTING HEAD UNIT AND IMAGE FORMING APPARATUS - In a liquid jetting head unit, a tank case in a head tank includes a first connection path connecting a downstream chamber of the tank case and a discharge path, and a second connection path connecting an upstream chamber of the tank case and the discharge path. The discharge path includes a filter member provided between a first part of the discharge path connected to the first connection path and a second part of the discharge path connected to the second connection path.07-28-2011
20110181669Inkjet System with Backpressure Capacitor - A vacuum source is coupled to an ink reservoir to establish a backpressure to prevent ink from dripping from a printhead. The vacuum source is also coupled to a backpressure capacitor so that a first liquid-gas interface rises to a first level. When the vacuum source is decoupled, the liquid-gas interface falls to a second level so as to maintain sufficient backpressure on said ink to prevent it from dripping from the inkjet printhead.07-28-2011
20120133713INK TANK WITH FLEXIBLE WALL - A tank for holding ink for an inkjet printhead, the tank includes a housing including a back wall and a side wall extending from the back wall, the side wall including an edge; a plate including a first surface and a second surface opposite the first surface; a spring disposed between the back wall of the housing and the first surface of the plate; a flexible wall affixed to the edge of the side wall of the housing, wherein a portion of the flexible wall is conformed to a shape of the second surface of the plate, and wherein a space between the flexible wall and the back wall of the housing is configured as a reservoir to hold ink; and an outlet port for transferring ink from the reservoir of the tank to the inkjet printhead.05-31-2012
20120162322LIQUID SUPPLYING MECHANISM AND LIQUID EJECTING APPARATUS - A liquid supplying mechanism includes a flow channel forming member that has a base having a plate-like shape on which an upstream portion of a plurality of liquid supplying flow channels are formed so as to supply ink to each of a plurality of liquid ejection heads that are assembled to a liquid ejection head unit, and a plurality of connection members in a tubular shape that extend from one side of the of the base so as to form a downstream portion of the flow channels that individually communicate with the upstream portion of the respective liquid supplying flow channels and are disposed such that the distal end of the connection members correspond to the positions of the connection holes that are formed on the respective liquid ejection heads.06-28-2012
20120249689PROTECTION DEVICE FOR INK-JET PRINTHEAD - The present invention relates to a protection device for ink-jet printheads, comprising: a tank confining a cavity adapted to contain a humidifying liquid and having a mouth designed to be associated with at least one nozzle of an ink-jet printhead; a seal disposed around the mouth and suitable to be put sealingly in engagement against the printhead and around the nozzle; a mechanism integrated into the tank, for opening or closing the mouth for selectively bringing the mouth into fluid communication with the cavity.10-04-2012
20090058956INK DELIVERY SYSTEM AND METHODS FOR IMPROVED PRINTING - An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.03-05-2009
20120169814PRIMING SYSTEM FOR INKJET PRINTHEADS - Disclosed is a priming system for inkjet printheads that includes at least one inkjet printhead. Each inkjet printhead includes one or more single color inkjet chips. Further, the priming system includes at least one ink supply unit. Each ink supply unit is fluidly coupled to a corresponding single color inkjet chip for supplying ink to the corresponding single color inkjet chip. Furthermore, the priming system includes a pumping member that includes at least one pumping head. A pumping head is fluidly coupled to the corresponding single color inkjet chip to receive the ink from the corresponding single color inkjet chip, and to a corresponding ink supply unit to pump the ink back into the corresponding ink supply unit.07-05-2012
20120169813CONSUMABLE SUPPLY ITEM, FLUID RESERVOIR AND RECIRCULATION SYSTEM FOR MICRO-FLUID APPLICATIONS - A housing defines a fluid reservoir for an imaging device. One or more exterior walls define a volume for holding ink to set a fluid backpressure in the imaging device. An opening in the walls is positioned for overflowing excessive ink from the volume to maintain the fluid backpressure within a predetermined operating range. Fluid inlets and outlets connect the reservoir to both a supply item and an ejection head. Ink flows into the reservoir from the supply item. It fills until the fluid rises to a height where it overflows back to the supply item. Less full reservoirs fill as the pump operates, while full reservoirs simultaneously return fluid back to their supply containers. Fluid does not spill from the walls.07-05-2012
20120169811Ink filling device for office machine - An ink filling device for supplying an ink to an ink container of an office machine includes an ink reservoir having an inlet port and one or more outlet openings, an ink casing having a filling member for engaging with the inlet port and for supplying the ink into the ink reservoir, and a connecting device includes a coupling pipe having one end for coupling to the outlet opening of the ink reservoir, and having the other end for coupling to the ink container of the office machine and for automatically filling the ink container of the office machine and for maintaining the ink container in the full or filled level without being filled or operated by the users themselves.07-05-2012
20120176452METHOD FOR REFILLING INK INTO INK CARTRIDGE AND FILLING TOOL - A method for refilling ink into ink cartridge comprises: I. hermetically connecting an ink injection port of the ink cartridge to an ink supply port of an ink storage container of an ink filling tool which is not completely filled with ink, connecting a suction unit to the ink storage container of the ink filling tool and sealing the ink cartridge; II. sucking out the air inside the ink storage container of the ink filling tool by the suction unit; III. releasing the suction unit so that the ink inside the ink storage container of the ink filling tool is automatically absorbed by the ink cartridge due to atmospheric pressure balance. An ink filling tool used in the method described above also is provided.07-12-2012
20120075390INK PUMP WITH FLUID AND PARTICULATE RETURN FLOW PATH - A bidirectional sealless ink pumping system used in an inkjet printing device includes a liquid ink reservoir and a pump. The pump moves ink from the reservoir through a pumping chamber to supply ink to printheads in the printer, and moves ink from a recirculation receptacle through the pumping chamber to the reservoir. A portion of the ink in the pumping chamber is drawn out of the pumping chamber to lubricate the moving member and is filtered before returning to the pumping chamber.03-29-2012
20100271442PRINTER WITH FOAMING SYSTEM FOR CLEANING EJECTING FACE - An inkjet printer that has a printhead with an ink ejection face, an ink supply system for supplying ink to the printhead and a foaming system for generating a liquid foam on the ejection face. The liquid foam is a matrix of liquid membranes forming randomly-packed Voronoi polyhedra.10-28-2010
20120249688DISCHARGE-PRINTING TREATMENT AGENT STORAGE CONTAINER - A discharge-printing treatment agent storage container includes: a first treatment agent-storage container; and a second treatment agent-storage container. The first treatment agent-storage container is provided with an introduction port for introducing a second treatment agent. The introduction port is sealed with a seal member. The second treatment agent-storage container is provided with a discharge port for discharging the second treatment agent. The discharge port is linked to a discharge tube. The tip of the discharge tube is capable of being placed in the first treatment agent-storage container by releasing the introduction port from being sealed with the seal member.10-04-2012
20120249690FLOW THROUGH DROP DISPENSER INCLUDING POROUS MEMBER - A liquid dispenser includes a liquid supply channel, a liquid dispensing channel that includes an outlet opening, and a liquid return channel that includes a porous member located therein. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member is selectively actuatable to divert a portion of the liquid toward outlet opening of the liquid dispensing channel.10-04-2012
20120249687INKJET CHAMBER REFILL METHOD WITH CIRCULATING FLOW - A method of printing with an inkjet printhead, the method includes providing an ink source that is fluidically connected to the printhead; filling a chamber of a drop generator of the inkjet printhead with ink; ejecting a drop of ink from the chamber of the inkjet printhead; and refilling the chamber with ink, wherein refilling the chamber comprises: providing an influx of ink into the chamber; and providing a circulating flow of ink around a periphery of the chamber.10-04-2012
20120182364CONTAINER UNIT AND LIQUID EJECTION SYSTEM - There is provided a container unit located outside of a liquid ejection apparatus and configured to supply a liquid to the liquid ejection apparatus via a connection path. The container unit includes: a liquid container configured to contain the liquid, the liquid container having a liquid fill port for pouring the liquid into the liquid container; and a bottom cover member attached to the liquid container and configured to form a bottom face that comes into contact with a mounting surface of the container unit in a liquid supply attitude of the liquid container, in which the liquid is supplied to the liquid ejection apparatus. The bottom cover member has a liquid retainer provided on an opposed face to retain the liquid flow into the opposed face, the opposed face being provided on an opposite side to the bottom face and being opposed to the liquid container.07-19-2012
20100194831REFILL UNIT FOR INCREMENTAL MILLILITRE FLUID REFILL - A refill unit for a fluid container is providing. The refill unit has a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the fluid container, a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly configured to incrementally eject between 6 ml and 50 ml per increment of fluid from the reservoir when the assembly is actuated by operative engagement of the fluid container with the housing.08-05-2010
20120188314INKJET PRINTING APPARATUS - An inkjet printing apparatus includes: an inkjet head configured to discharge ink; a first tank configured to store ink to be supplied to the inkjet head; a second tank configured to store ink not consumed by the inkjet head; an ink circulation path for circulation of ink among the first tank, the inkjet head, and the second tank; a pressurizer configured to provide the first and second tanks with a pressure for the circulation of ink through the ink circulation path; a first pressure adjuster configured to adjust a pressure inside the first tank during the circulation of ink; and a second pressure adjuster configured to adjust a pressure inside the second tank during the circulation of ink.07-26-2012
20090021564FLUID EJECTING APPARATUS AND FLUID FILLING METHOD OF FLUID EJECTING APPARATUS - A fluid ejecting apparatus includes a fluid containing portion, a fluid discharging portion, a flow passage forming portion and a valve mechanism. The fluid containing portion contains fluid. The fluid discharging portion discharges the fluid. The flow passage forming portion forms a fluid flow passage that extends from the fluid containing portion to the fluid discharging portion. The valve mechanism is able to open or close the fluid flow passage. The fluid ejecting apparatus is placed in an initial state before an initial use of the fluid ejecting apparatus, wherein fluid is contained in the fluid containing portion and at least portion of the fluid flow passage from a position of the fluid containing portion to a position of the valve mechanism is filled with the fluid and the fluid flow passage is closed by the valve mechanism.01-22-2009
20090021563System And Method For Depositing A Seed Layer - A method for depositing a seed layer for a controllable electric pathway on a substrate includes selectively dispensing a seed material from an inkjet material dispenser onto said substrate.01-22-2009
20100328403LIQUID DIVERTER FOR FLOW THROUGH DROP DISPENSER - A liquid dispenser includes a liquid supply channel, a liquid dispensing channel including an outlet opening, and a liquid return channel. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A selectively actuatable diverter member imparts heat energy directly to a first portion of the liquid to divert a second portion of the liquid toward outlet opening of the liquid dispensing channel.12-30-2010
20080297574RESERVOIR ASSEMBLY FOR A PAGEWIDTH PRINTHEAD CARTRIDGE - A reservoir assembly for a pagewidth printhead cartridge has a fluid distribution molding with priming inlets in fluid communication with fluid channels for supplying printing fluid to a plurality of printhead integrated circuits. The assembly includes a reservoir compartment arranged in fluid communication with the fluid channels via a fluid outlet. The reservoir compartment defines a vent hole to facilitate pressure equalisation in the compartment and a bypass fluid path interconnecting the fluid outlet and a well region defined by the compartment. A bypass valve is operatively arranged with respect to the fluid path to facilitate priming the reservoir compartment with printing fluid12-04-2008
20080297573LIQUID APPLYING APPARATUS AND INK JET PRINTING APPARATUS - The present invention provides a liquid applying apparatus that prevents an applying roller from being degraded while contacting with an application liquid for a long time. Specifically, once an applying operation has been completely executed on an applying medium, the apparatus stands by for 60 seconds while holding the application liquid in a liquid holding member. When an applying instruction is not given during this period, the apparatus performs an application liquid collecting operation of discharging the application liquid from the liquid holding member. Thus, upon determining that no applying operation has been performed for a certain period after one applying operation has been finished, the apparatus collects the application liquid from the liquid holding member. This avoids immersing the applying roller in the application liquid for a long time. Therefore, the applying roller is prevented from being degraded by the application liquid.12-04-2008
20080297572INK CARTRIDGE UNIT FOR AN INKJET PRINTER WITH AN INK REFILL FACILITY - Provided is an ink cartridge unit for an inkjet printer. The cartridge unit includes a main body defining a number of ink reservoirs, each reservoir having a layered stack of absorbent material forming a micro-capillary array for suspending ink inside said reservoir. The unit also includes a lid assembly covering the main body to seal ink inside the ink reservoirs, and a printhead assembly operatively fed with ink from the ink reservoirs in the main body. The unit further includes a capper assembly for operatively capping the printhead assembly to prevent damage to micro-electromechanical nozzle arrangements defined on a printing surface of the printhead assembly. The lid assembly includes a refill facility whereby the ink reservoirs are refillable with ink from a suitable ink refill unit.12-04-2008
20080297571INKJET PRINTERS - An ink jet printer includes an image forming unit. The image forming unit includes a main tank configured to receive ink via a supply port and to store the ink therein, a subtank configured to receive the ink from the main tank and to store the ink therein, and a recording head configured receive the ink from the subtank and to dispense the ink onto a recording medium to form an image thereon. The printer also includes an image reading unit positioned above the image forming unit. The image reading unit is configured selectively move between a first position in which the image reading unit covers the supply port, and a second position in which the image reading unit is separated from the supply port.12-04-2008
20080297570INKJET PRINTER WITH VARIABLE SIZE TANKS - An inkjet printer includes a recording head configured to eject ink onto a recording medium, an ink tank configured to store the ink to be supplied to the recording head, the ink tank having an expandable and contractible bellows portion, and at least one deformation-preventing member configured to contact an outer surface of the bellows portion and configured to prevent the ink tank from deforming in a direction intersecting with an expanding and contracting direction in which the ink tank expands and contracts.12-04-2008
20080297569INK-JET PRINTER - An ink-jet printer, including: a recording head which ejects ink onto a recording medium; a main tank which stores the ink to be supplied to the recording head; a sub tank configured to be extended and contracted in a vertical direction and including first and second ink flow holes provided in a lower portion of the sub tank, such that the first ink flow hole communicates with the recording head while the second ink flow hole communicates with the main tank; and a communication tube which is connected, at one of opposite ends thereof, to the second ink flow hole and which has, at the other of opposite ends thereof, an opening positioned in an inside space of the sub tank, whereby the second ink flow hole and the inside space of the sub tank communicate with each other via the communication tube, wherein the communication tube is configured such that the opening of the communication tube is displaced downwardly in accordance with the contraction of the sub tank.12-04-2008
20080297568FLUID SUPPLY SYSTEM AND FLUID EJECTING APPARATUS USING SAME - A liquid supply system including a main tank, a feed pump, a subtank, a negative pressure maintenance mechanism, and a directional control valve. The main tank stores liquid. The feed pump sucks the liquid held in the main tank through a pump suction opening and discharges the liquid through a pump discharge opening. The subtank holds the liquid discharged from the pump discharge opening and supplies the liquid to the liquid ejecting head. The negative pressure maintenance mechanism monitors a supply channel from the subtank to the liquid ejecting head so that the supply channel is opened only when the pressure of a channel to the liquid ejecting head is lower than a predetermined pressure. The directional control valve restrains liquid from flowing from the pump discharge opening to the pump suction opening when the pressure of the pump discharge opening is less than a predetermined pressure.12-04-2008
20120320131INKJET HEAD AND INKJET RECORDING DEVICE - An inkjet head is disclosed, including a nozzle plate, a passage substrate, and a diaphragm. The nozzle plate forms multiple nozzles for discharging ink. A passage substrate joints to the nozzle plate. On the passage substrate, an individual liquid chamber leading to a nozzle, and a liquid supply chamber connected to the individual liquid chamber through an individual passage are formed for each of the multiple nozzles. The diaphragm forms a piezoelectric element which is laminated on a side opposite to the nozzle plate of the passage substrate and includes a lower electrode, a piezoelectric body, and an upper electrode. The liquid supply chamber formed for each of the multiple nozzles is compartmented by a bulkhead from an other liquid supply chamber, and each of the liquid supply chamber and the other liquid supply chamber include multiple ink supply ports.12-20-2012
20110032313INDIVIDUAL INK TANK WITH FEATURES SPACED BY DISTANCES ENSURING INTERFACE WITH PRINTHEAD - A individual ink tank includes certain features that properly interface with features on a printhead to operatively seat the ink tank in the printhead in a sealed flow communicative relationship with the printhead. These interface features are spaced apart relative to one another at distances (or dimensions) that ensure the desired seating and sealing of the ink tank in the printhead and thereby the reliable supply of ink for operation of the inkjet printing system.02-10-2011
20110032312MULTI-COLOR INK TANK WITH FEATURES SPACED BY DISTANCES ENSURING INTERFACE WITH PRINTHEAD - A multi-color ink tank includes certain features that properly interface with features on a printhead to operatively seat the ink tank in the printhead in a sealed flow communicative relationship with the printhead. These interface features are spaced apart relative to one another at distances (or dimensions) that ensure the desired seating and sealing of the ink tank in the printhead and thereby the reliable supply of ink for operation of the inkjet printing system.02-10-2011
20100231662INKJET PRINTING APPARATUS - A printing apparatus configured to perform printing by supplying an ink from a main tank to a sub tank and ejecting the ink in the sub tank from a printing head is allowed to execute an agitating operation to appropriately eliminate sedimentation of a pigment component without being complicated in structure and increased in cost. The printing apparatus includes a diaphragm provided in an ink supply path, and a driving mechanism for driving the diaphragm to thereby change an internal volume thereof. In the ink supply path, a resistance value of a flow path from the diaphragm to the printing head is set greater than that of a flow path from the diaphragm to the sub tank. The diaphragm is driven to generate bidirectional ink flow between the diaphragm and the sub tank to eliminate pigment component sedimentation at a bottom of the sub tank.09-16-2010
20100231661PRESSURE-REGULATING VALVE AND LIQUID DROPLET EJECTION APPARATUS - A pressure-regulating valve for opening and closing, based on atmospheric pressure, a valve body provided to a communication flow passage via which a primary chamber and a secondary chamber communicate inside a valve housing, with the aid of a pressure-receiving membrane that constitutes one surface of the secondary chamber, for regulating the pressure of a liquid fed to the primary chamber via an inflow port, and for feeding the liquid from the secondary chamber via an outflow port; the pressure-regulating valve wherein a cover is provided for allowing action of the pressure-receiving membrane and for covering the pressure-receiving membrane; and the cover has light-blocking properties.09-16-2010
20120287209 INK-REFILLED CONVECTION DEVICE FOR INTRODUCING INK INTO AN INK CARTRIDGE - An ink-refilled convection device for introducing ink into an ink cartridge mainly has an ink-refilled convection unit disposed at the top of taper column of the ink container. When the ink-refilled convection unit is inverted to insert into the ink tank, the drain conduit goes deep into the bottom of the ink tank for the ink flowing into the ink tank. The vent conduit has an end above the ink container and the other end at a predetermined level in the chamber to form a convective circulation between the drain conduit and the vent conduit. Once the ink flows downward in the drain conduit, it starts to fill in the cartridge automatically until the predetermined level is reached, and after that, the convective circulation stops immediately to complete the ink refilling.11-15-2012
20090179968LOW INSERTION FORCE FLUID COUPLING - A fluid coupling for establishing a sealed connection between a first conduit and a second conduit that has a seal seat and a compression member. The compression member is movable relative to the seal seat in which an annular seal is positioned. An engagement mechanism moves the second conduit from a disengaged position where there is no sealed fluid connection between the first and second conduits, to an engaged position where the compression member moves toward the seal seat to compress the annular seal to form a sealed fluid connection.07-16-2009
20120140003INKJET PRINTER TO PRINT TO A RECORDING MATERIAL - In an inkjet printer at least one print head is provided via which ink droplets are ejected onto a recording material. An intermediate ink container supplies ink for the print head. A pumping device pumps ink which is then supplied into the intermediate ink container at an ink inlet from pumping. At least one current director is arranged at a distance from a floor within a region of the intermediate ink container and is angled such that ink flowing out of the ink inlet from pumping flows in a radial direction at an angle of inclination and is deflected by the floor or a container wall of the ink container such that an ink current is generated via which a stirring of the ink occurs.06-07-2012
20130010037LIQUID CIRCULATION SYSTEM - A liquid circulation system includes an inkjet head formed with a common ink flow passage, an ink cartridge, a supply flow passage through which ink is supplied from the ink cartridge to an inlet of the common ink flow passage, a return flow passage through which the ink is returned from the outlet of the common ink flow passage to the ink cartridge, a tube pump sending the ink in the supply flow passage, a tube pump sending the ink in the return flow passage, a pressurization bellows unit pressurizing the ink in the supply flow passage, a pressure reduction bellows unit depressurizing the ink in the return flow passage, a pressurization regulator maintaining the inlet being a center value “+α” of a designated head value, and a differential pressure regulator by which a differential pressure of the ink between the inlet and the outlet is maintained to be “2α”.01-10-2013
20130010036PRINT HEADS AND PRINT HEAD FLUIDS - Print heads and print head fluids are disclosed. An example print head for an inkjet printer system includes a fluid reservoir, and a nozzle fluidically connected to the fluid reservoir. The example print head also includes a fluid having a liquid vehicle component and a tinting dye. The fluid is provided in the fluid reservoir during shipping of the print head to maintain wetting of the print head. The fluid is discharged after installation of the printer head in the inkjet printer system.01-10-2013
20110157282INK JET PRINTING METHOD AND APPARATUS - An ink jet print head comprises a print head matrix having nozzles for drop formation and release opening onto a print side surface of said matrix and individual local micro-reservoirs, each associated with the local nozzles. The reservoirs open onto an ink supply surface of the matrix and are supplied with ink by capillary action from wiping or spraying of ink regularly refreshed onto the ink supply surface. The design allows for a print head that substantially covers the area of the print media and thus permits stationary printing. Printing is rapid and the ink supply arrangement allows for reliable ink supply at atmospheric pressure.06-30-2011
20130021417RECORDING APPARATUS - A recording apparatus includes: a holding unit that holds a liquid receptacle containing a liquid; a recording head that ejects, onto a recording medium, the liquid supplied from the liquid receptacle held by the holding unit; a heating unit that heats the recording medium; and a suction unit that includes a suction port for sucking air to the heating unit. Here, the suction port is disposed in a location that enables the atmosphere around the liquid receptacle to be sucked.01-24-2013
20130021416LIQUID CIRCULATION SYSTEM - Liquid is appropriately circulated with a low cost and thereby precipitation of fine particles in the liquid is prevented and bubbles in the liquid flow passage are removed.01-24-2013
20130135401IMAGE FORMING APPARATUS - In an image forming apparatus, a liquid supply control processor controls to detect and store a difference amount corresponding to a displacement amount of a displacing member between a position detected by a first sensor and another position detected by a second sensor: measure a consumed liquid amount; start the liquid supply upon the consumed liquid amount reaching a predetermined threshold so as to supply the difference amount after the first sensor has detected the displacing member; and stop the liquid supply when the first sensor does not detect the displacing member before a preset predetermined time has passed. The control processor controls the image forming apparatus such that, when the liquid supply is performed without using the second sensor, using a first and second predetermined threshold times and the first threshold time is set longer than the second threshold time.05-30-2013
20120242760ANGULAR VALVE ACTUATOR - Apparatus and methods are provided for use with printers and imaging apparatus. An actuator is supported on a shaft about which it can rotate through a range of arc. A spring biases the actuator so as to bring a valve pad into sealing contact with a plurality of nozzles. A lever arm of the actuator is operable by way of force contact so as to rotate the actuator and angularly displace the valve pad out of contact with the nozzles. Simultaneous opening or closing of the nozzles is performed by way of corresponding angular displacements of the actuator.09-27-2012
20080239029Functional liquid supply apparatus, liquid droplet ejection apparatus, method of manufacturing electro-optical apparatus, electro-optical apparatus and electronic apparatus - Provided herein is a functional liquid supply apparatus having: a plurality of sub tanks, a tank unit which replenishes the functional liquid to the plurality of sub tanks, an upstream side functional liquid channel of which an upstream side thereof is connected to the tank unit and a downstream side thereof is connected to each of the sub tanks, and a plurality of third opening and closing valves which replenish the functional liquid to each of the sub tanks by its' opening and closing operations. The tank unit 10-02-2008
20080231674Printer System, Main Printer And Sub Printer To Be Used Therefor, And Ink Supply Method - A printer system comprises a main printer which has a first tank and a first head, a sub printer which has a second tank having a volume smaller than the first tank and a second head and which is provided detachably with respect to the main printer, and a supply mechanism which supplies the ink from the first tank to the second tank when the sub printer is installed to the main printer. Accordingly, it is possible to provide the printer system, which is not provided with any exclusive station that finds no way of use except for the ink supplement and requires any excessive installation space, while the sub printer is of the ink supplement type.09-25-2008
20080231672LIQUID EJECTING APPARATUS AND LIQUID SUPPLY METHOD - A liquid ejecting apparatus which includes an ejection head capable of ejecting a liquid to an ejection object, a liquid source including a liquid container capable of containing the liquid, a flow channel capable of allowing the liquid to flow form the liquid source to the ejection head, and a pressure buffer disposed in the flow channel capable of buffering a variation in pressure of the liquid in the flow channel when the liquid container is detached from the liquid source.09-25-2008
20080231671INK-JET IMAGE FORMING APPARATUS AND INK SUPPLY DEVICE THEREOF - An image forming apparatus is configured to include an ink supply device with an ink flow path to a print head to eject ink toward a printing medium and a flow regulating valve for the ink flow path. The flow regulating valve to perform opening/closing operations according to at least the ejection amount of ink from a print head. The ink supply device includes a body, which has an ink discharge path coupled to the print head, a first chamber coupled to the ink discharge path, an ink introduction path coupled to the ink tank, a second chamber coupled to the ink introduction path, and a connecting path to coupled the first and second chambers to each other. The flow regulating valve is configured to open or close the connecting path, and a valve drive unit is configured to operate the flow regulating valve.09-25-2008
20080231670INK COUPLING FOR INKJET PRINTER WITH CARTRIDGE - An ink coupling for connecting an inkjet printer and a replaceable cartridge configured to not drip ink upon detachment. The coupling has a cartridge valve on the cartridge side of the coupling and a printer conduit on the printer side of the coupling. The cartridge valve and the printer conduit having complementary formations configured to form a coupling seal when brought into engagement. The cartridge valve is biased closed and configured to open when brought into engagement with the printer conduit. Upon disengagement, the coupling seal breaks after the cartridge valve closes, and an ink meniscus forms and recedes from the complementary formations as they separate, the cartridge valve having external surfaces configured so that the meniscus travels across the external surfaces and only pins itself to the printer conduit surfaces. The invention keeps residual ink off the exterior of the cartridge valve by careful design of the external surfaces with respect to known receding contact angle of the ink meniscus. As the coupling seal breaks and the meniscus forms, the ink properties and hydrophilicity of the respective valve materials will determine where the meniscus stops moving and eventually pins itself.09-25-2008
20080225091CARTRIDGE UNIT HAVING CAPPED PRINTHEAD WITH MULTIPLE INK STORAGE CAPACITY - A cartridge unit for an inkjet printer is provided which has a body portion having ink storage compartments, a pagewidth printhead configured to receive ink from the compartments and distribute the ink to nozzles arranged in use to deliver the ink onto passing print media, and a capping assembly for capping the printhead. The capping assembly has a body configured to extend the length of the printhead, a capping element housed within the body and movable with respect thereto between first and second positions. The first position is where a portion of the capping element extends from the body and the second position is where the capping element is contained within the body. The capping element is biased into the first position. The ink storage compartments comprise absorption material which stores the ink therein under capillary action for supply to the nozzles of the printhead.09-18-2008
20080225090PRESSURE REGULATING MECHANISM AND LIQUID EJECTING APPARATUS - A pressure regulating mechanism which includes a pressure regulating chamber that introduces a liquid from a liquid supply source through an inlet port, stores the liquid, and discharges the stored liquid to an object through an outlet port, an on/off valve, a pressure receiving member that is provided to seal an opening surface of the pressure regulating chamber, a reduced-pressure space portion adjacent to the regulating chamber with a pressure that may be reduced to be less than the pressure of the pressure regulating chamber, and a partition wall disposed between the pressure regulating chamber and reduced-pressure space portion, wherein gas is capable of passing through the partition wall using the a difference in pressure between the reduced-pressure space and pressure regulating chamber and discharged to the reduced-pressure space portion.09-18-2008
20110261121LIQUID EJECTING APPARATUS - The present invention is a liquid ejecting apparatus including: a carriage that reciprocates in a main scanning direction; a liquid ejecting head mounted on the carriage, having a plurality of head-liquid-supplying ports and a plurality of nozzles; and a sub-tank member mounted on the carriage, having a plurality of liquid-storing-room openings that are respectively communicated with the plurality of head-liquid-supplying ports of the liquid ejecting head. The sub-tank member is formed as a single integral member. Each of the plurality of liquid-storing-room openings is closed by an elastic partition having a predetermined area in order to form a liquid storing room. The plurality of liquid-storing-room openings are respectively communicated with a plurality of liquid-communication ways provided in the sub-tank member. The plurality of liquid-communication ways are respectively communicated with a plurality of sub-tank-liquid-supplying ports provided at an outside of the sub-tank member.10-27-2011
20130176366PRINTER WITH INK LINE DAMPENING OF INK PRESSURE SURGES - A printer comprising: a printhead having an ink inlet and an ink outlet; an ink chamber for supplying ink to the printhead; an upstream ink line interconnecting an outlet port of the ink chamber and the ink inlet; a downstream ink line connected to the ink outlet; and a first air accumulator communicating with the downstream ink line. The first air accumulator is configured for dampening ink pressure pulses in the printhead during printing.07-11-2013
20130093820LIQUID SUPPLY APPARATUS AND LIQUID EJECTING APPARATUS - A liquid supply apparatus which supplies a liquid to a liquid ejecting head from a liquid accommodating unit includes a plurality of rotating type pumps which are respectively provided in the middle of each of a plurality of supply paths which connect a plurality of the liquid accommodating units and the liquid ejecting head, a common power source which drives the plurality of pumps and a power transmission adjusting unit which adjusts power which is transmitted from the power source to each pump due to the liquid pressure in the supply path on the basis of a load that the pump receives.04-18-2013
20130127957Mixing Device and Mixing Method - A mixing method and device are disclosed. The mixing method includes providing a drop generating device including a first drop ejector, a second drop ejector and a collector. The mixing method also includes ejecting a plurality of drops of a first reactant from the first drop ejector and ejecting a plurality of drops of a second reactant from the second drop ejector and collecting the drops with the collector.05-23-2013
20130169718ATTACHMENT AND ATTACHMENT SYSTEM - An attachment is mountable on a carriage in place of a liquid container that contains liquid and that is mounted on the carriage having a liquid jet head for jetting liquid, so that the attachment can supply liquid introduced from outside to the liquid jet head. The attachment has a pressure control means provided in a flow passage which is formed in an attachment body and through which the liquid introduced from the outside is supplied to the liquid jet head.07-04-2013
20130169717LIQUID JET HEAD AND LIQUID JET APPARATUS - To prevent deterioration of an ejection characteristic, which is caused by adhesion of an air bubble mixed in liquid to channels (07-04-2013
20130135402NEGATIVE-PRESSURE INK CARTRIDGE REFILLING DEVICE, SYSTEM AND METHOD - The invention relates to a negative-pressure ink cartridge refilling device, system and method. The device comprises an ink container used to store ink, an ink injection channel, an aspirator and a suction channel communicated with the ink container, wherein one end of the ink injection channel is an ink inlet end while the other end is an ink outlet end connected with the ink cartridge to be refilled; a sucking opening connected with the aspirator is formed on the suction channel; and the inlet end is disposed above the ink level surface of the ink container. Therefore, the ink in the ink container cannot be overflowed via the ink injection channel regardless of the environmental factors, and thus the technical problem that the phenomenon of ink splash tends to occur when the traditional negative-pressure ink cartridge refilling device is used by a user for the first time can be solved.05-30-2013
20080198209PASSAGE COMPOSITE, AN INK JET HEAD AND A PRINTER - A printer has an inkjet head, which has a passage composite. The passage composite has a main body, having a surface and a projection portion that extends outward from the surface. The projection portion has an opening formed through it, and the projection portion also has an end, and an edge opposite the end. The main body also has at least one rib positioned outside the projection portion. The at least one rib extends away from the surface, and is separated by a predetermined nonzero distance from the edge of the projection portion.08-21-2008
20080198208LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A liquid ejection head includes: a plurality of nozzles which eject liquid; a plurality of pressure chambers connected respectively to the plurality of nozzles; a common flow channel which is provided to be shared by the plurality of pressure chambers and has a plurality of supply flow channel connection ports and a plurality of circulation flow channel ports; a plurality of supply flow channels through which the liquid flows from the common flow channel to the plurality of pressure chambers via the plurality of supply flow channel connection ports; and a plurality of circulation flow channels through which the liquid flow from the plurality of pressure chambers to the common flow channel via the plurality of circulation flow channel ports, wherein the plurality of supply flow channel connection ports and the plurality of circulation flow channel ports are arranged so that a pressure differential of the liquid between the supply flow channel connection port and the circulation flow channel port which are connected to the same pressure chamber is equal in respect of all of the plurality of pressure chambers.08-21-2008
20080198207PRESSURE ADJUSTMENT APPARATUS AND IMAGE FORMING APPARATUS, AND PRESSURE ADJUSTMENT METHOD AND LIQUID REMAINING AMOUNT DETERMINATION METHOD - A pressure adjustment apparatus for adjusting a pressure of liquid inside a liquid ejection head including nozzles and flow channels includes: a tank; a pump; a buffer chamber; a first switching device; and a second switching device. The tank includes a movable film and a hermetically sealed container of a prescribed volume, the movable film dividing the hermetically sealed container into a gas chamber filled with gas and a liquid chamber filled with the liquid to be supplied to the liquid ejection head. The pump changes a pressure of the gas inside the gas chamber so as to adjust a pressure of the liquid inside the liquid chamber. The buffer chamber is filled with the gas and damps gas-flow pulsations caused by the pump. The first switching device connects and disconnects the buffer chamber and the gas chamber. The second switching device switches between a state where the pump is connected to the gas chamber without through the buffer chamber, and a state where the pump is connected to the buffer chamber.08-21-2008
20080198206Printing Device - Various ink containers are provided. One exemplary ink container includes a housing that is configured to hold ink therein and has an ink fill port and a gas exit port. A single sealing device is compressively held by a portion of the housing so as to obstruct both the ink fill port and the gas exit port.08-21-2008
20110228018INKJET PRINTER WITH FLOAT VALVE REGULATION OF HYDROSTATIC INK PRESSURE - An inkjet printer includes: an inkjet printhead; an ink reservoir containing a supply of ink; and a pressure-regulating chamber for maintaining ink contained therein at a predetermined first level. The chamber includes: an inlet port connected to the ink reservoir via an ink supply line; an outlet port connected to an ink inlet of the printhead via an upstream ink line; an air vent open to atmosphere; and a float valve for maintaining the predetermined first level of ink. The float valve includes: an arm pivotally mounted about a pivot; a float mounted at one end of the arm; and a valve stem attached to the arm, said valve stem having a valve head for closure of a valve seat, the valve seat being positioned at the inlet port of the pressure-regulating chamber.09-22-2011
20100309262DEVICE FOR FEEDING LIQUID TO INKJET HEADS AND DEVICE FOR WIPING INKJET HEADS - When liquid materials are fed to inkjet heads, fluid pressures of liquid materials to be fed to inkjet heads are equalized so that a gas does not remain in liquid feed pipe lines without causing structures of the liquid feed pipe lines to be complicated. Separate liquid feed pipe lines (12-09-2010
20110242229INK PASSAGEWAYS CONNECTING INLET PORTS AND CHAMBERS - A printhead frame for an inkjet printhead assembly, the printhead frame includes a holding receptacle for at least one replaceable ink tank, the holding receptacle including a plurality of ink inlet ports disposed on a first wall; a plurality of ink chambers corresponding to the plurality of ink inlet ports, wherein at least a first ink chamber is adjacent the first wall and is directly opposite a first ink inlet port, a second ink chamber is not adjacent the first wall, and the first wall includes a first hole to fluidly connect the first ink inlet port and the first ink chamber; and a second wall adjoining the first wall and forming a part of the second ink chamber, the second wall including a first groove; wherein the first wall includes a second hole to fluidly connect a second ink inlet port and the first groove; and wherein the second wall includes a first hole to fluidly connect the second ink chamber and the first groove.10-06-2011
20110234715LIQUID EJECTION HEAD AND LIQUID EJECTING APPARATUS - Ink is transported to the transporting passage side by circulating the ink from inside to the outside of the coil spring. When foreign materials are mixed within ink, the foreign materials can be captured in the gaps of the windings of the coil spring.09-29-2011
20110234714INK JET PRINTER - An ink jet printer has an ink circulation unit including an image recording unit to discharge ink to perform image recording on a recording medium; a first tank disposed above the image recording unit in a gravitational force direction to supply the ink to the image recording unit through a first ink path; a second tank disposed below the image recording unit in the gravitational force direction to collect the ink that was not discharged from the image recording unit through the second ink path; a pump to send the ink from the second tank to the first tank through a third ink path, and at least a part of the first ink path connecting the first tank and the image recording unit is positioned below an ink liquid level in the second tank in the gravitational force direction.09-29-2011
20110234713LIQUID EJECTING APPARATUS - A liquid ejecting apparatus including a liquid-ejecting head for ejecting a liquid, a tank for storing the liquid to be supplied to the liquid-ejecting head, and a liquid supply portion configured to supply the liquid from the tank to the liquid-ejecting head, wherein the tank includes an inner wall structure which is enclosed within an outer wall of the tank and which defines therein an inner liquid flow space which communicates with the liquid supply portion and through which the liquid is supplied from the liquid supply portion to the liquid-ejecting head.09-29-2011
20110234712Inkjet head assembly - Provided is an inkjet head assembly capable of reducing the generation of air bubbles during ink injection by using a guide formed inside an ink tank. The inkjet head assembly includes an ink tank including an ink inlet through which ink is injected from the outside, and storing ink injected through the ink inlet, an inkjet head connected with the ink tank through an ink supply channel, receiving ink from the ink tank and discharging the received ink, and a guide disposed inside the ink tank and guiding ink, injected through the ink inlet, to an inner surface of the ink tank.09-29-2011
20110234711WHITE INK DELIVERY - A method for white ink delivery includes circulating white ink through a white ink delivery system between successive print jobs; and in response to a time interval between two of the successive print jobs being greater than a threshold time interval, draining the white ink from the white ink delivery system.09-29-2011
20100315471INKJET PRINTER HEAD - An inkjet printer head includes a nozzle plate having nozzles for jetting ink; a flow path plate having flow paths for communicating with the nozzles, each of the flow paths including a pressure chamber and a resistance part having a smaller cross-sectional area than the pressure chamber, wherein piezoelectric elements having smaller horizontal areas than the flow paths are laminated on the flow path plate; and a common liquid chamber configured to guide the ink from an opening to the pressure chamber. The common liquid chamber is formed by a first member and a second member. The first member forms a top part of the common liquid chamber, and the second member forms a side surface and a bottom surface of a bottom part of the common liquid chamber by adhering to an outer wall of the first member and to an ink jetting surface of the nozzle plate.12-16-2010
20130182046CARTRIDGE AND PRINTING MATERIAL SUPPLY SYSTEM - A cartridge comprises an ink supply structure, a terminal bearing structure, and a first restriction portion. The terminal bearing structure has terminals arranged in a terminal plane which is neither parallel nor perpendicular to a plane defined by a mounting direction leading edge of the ink supply structure, so that the contact portions of the terminals receive a force in a direction opposite (RD) from the mounting direction. An engagement portion of the first restriction portion is provided at a position adjacent to the terminal bearing structure.07-18-2013
20110279585METHOD OF ASSEMBLING SIMPLE PRINTHEAD FLUID DISTRIBUTION COUPLING - A method of assembling a coupling for distributing fluid to a printhead, the method having, mounting a seal member in a recess of a housing, inserting a shaft through a hole in the housing and the seal member, mounting a port plate on the shaft using a washer which is press-on mounted to the shaft and mounting a tube retainer for retaining fluid distribution tubes within a groove of the housing, the retainer having a plurality of holes aligned with respective ones of a plurality of ports in the port plate and a plurality of seals of the seal member for fluidically connecting the retained fluid distribution tubes with respective fluid spouts of the printhead, wherein the mounting of each of the seal member, port plate and retainer to the housing is achieved in a non-fastened manner.11-17-2011
20110279559PRINTING SYSTEM HAVING PRESSURE CONTROL AT PRINTHEAD - A printing system having a first fluid container, a printhead and a second fluid container connected between the first container and the printhead for delivering fluid from the first container to the printhead, wherein the second container is located relative to the first container and the printhead so that a fluid pressure difference between fluid contained within the second container and fluid at the printhead is independent of the amount of fluid contained within the first container.11-17-2011
20110310186PRINTHEAD SUPPORT STRUCTURE WITH CAVITIES FOR PULSE DAMPING - A structure for an inkjet printhead is disclosed. The printhead structure has an elongate support structure for supporting a printhead integrated circuit, and ink conduits formed in the elongate support structure for supplying ink to an array of nozzles of the printhead integrated circuit. Each ink conduit includes cavities distributed along a roof of the ink conduit. An opening to each cavity has an upstream edge and a downstream edge. The upstream edge contacts the ink before the downstream edge during initial priming of the ink conduits from an ink supply. The upstream edge has a transition face between the ink conduit and the cavity interior, the transition face being configured to inhibit ink from filling the cavity by capillary action during initial priming of the ink conduit. This causes gas to be trapped within the cavity. The gas acts to compress pressure pulses in the ink.12-22-2011
20110310185IMAGE FORMING APPARATUS AND TREATMENT-LIQUID APPLICATION DEVICE - An image forming apparatus includes a treatment-liquid application unit applying a treatment liquid from a chamber to a recording medium; a treatment-liquid storage unit to store the liquid; a supply channel member forming a supply channel to supply the liquid from the treatment-liquid storage unit to the chamber; a collection channel member forming a collection channel to collect the liquid from the chamber; and a temporary storage portion disposed in the collection channel to temporarily store the liquid. The temporary storage portion has an internal horizontal cross-sectional area greater than a channel cross-sectional area of the collection channel. The collection channel member has a first channel portion of a channel cross-sectional area smaller than the internal horizontal cross-sectional area of the temporary storage portion. A liquid level of the liquid in the collection channel is maintained in the first channel portion after termination of collecting operation.12-22-2011
20110310184INK SUPPLY DEVICE AND IMAGE RECORDING APPARATUS - There is provided an ink supply device including: a cartridge installing section configured to install the ink cartridge in a horizontal direction; an ink supply section configured to be fluid communication with an ink supply portion of the ink cartridge; a first sensor disposed in the ink cartridge installing section and positioned under the ink supply section in a vertical direction; and a first partitioning member partitioned the ink supply section and the sensor in the vertical direction.12-22-2011
20120019605FLUID DISPENSING APPARATUS - A fluid dispensing apparatus including a fluid ejector unit having a plurality of nozzles and extending in a lengthwise direction to form a dispensing area to correspond with a width of a substrate, the fluid ejector unit configured to eject fluid through the nozzles to the dispensing area, a plurality of modular regulator members configured to regulate fluid to a predetermined pressure range and to provide the regulated fluid to a corresponding set of nozzles of the fluid ejector unit, the modular regulator members are arranged in the lengthwise direction such that each of the modular regulator members are adjacent to at least one other modular regulator member, and a fluidic channel unit having at least one fluid inlet and a plurality of fluid channels configured to provide fluid to the respective modular regulator members.01-26-2012
20130194354PRESSURE REGULATION FOR INKJET PRINTER INK SUPPLY - An inkjet printing system includes an inkjet printhead including a nozzle array and an ink inlet fluidically connected to the nozzle array; a pressure regulated ink supply including: an unvented regulator chamber including: a capillary medium; and an ink outlet connected to the ink inlet of the printhead; a free ink reservoir including an ink inlet connector; and a dividing wall disposed between the regulator chamber and the free ink reservoir, the dividing wall including an ink passageway permitting ink to pass from the free ink reservoir into the regulator chamber; a carriage configured to move the printhead and the pressure regulated ink supply back and forth across a print region; a stationarily mounted main ink supply; and a flexible ink supply line connecting the main ink supply to the ink inlet connector of the free ink reservoir.08-01-2013
20120033022LIQUID DELIVERY SYSTEM - A liquid storage container (02-09-2012
20130201260LIQUID CONTAINER, LIQUID CONTAINER SET, AND INK JET RECORDING APPARATUS - A liquid container detachably mounted on a liquid consuming apparatus includes: a liquid including dispersed particles and a solvent in which the dispersed particles are dispersed; and an accommodation bag accommodating the liquid and provided with a discharge portion discharging the liquid, in which a ratio of a volume of the liquid with respect to a capacity of the accommodation bag when the accommodation bag is used from an initial period of filling is 95% or less.08-08-2013
20130100213INK SUPPLY APPARATUS - According to one embodiment, an ink supply apparatus supplies ink to a recording head. The ink supply apparatus includes a pump for circulating ink, a first tank for supplying ink to the recording head, a second tank for receiving ink from the recording head, a third tank supplied with ink from an ink supply source, a first pressure adjusting mechanism, arranged between the first tank and the third tank, which is open if the pressure in the first tank is greater than a first given value to discharge ink in the first tank to the third tank, and a second pressure adjusting mechanism, arranged between the third tank and the second tank, which is open if the pressure in the third tank is lower than a second given value smaller than the first given value to draw ink in the third tank into the second tank.04-25-2013
20130208058INK SUPPLY DEVICE AND IMAGE FORMING APPARATUS - An ink supply device includes a reservoir; an ink carrying rotary member; a supply rotary member that rotates and supplies ink to the ink carrying rotary member while a part thereof is immersed in the ink in the reservoir; a regulation member that faces an outer peripheral surface of the supply rotary member, the regulation member regulating an amount of ink on the outer peripheral surface of the supply rotary member at a position outside of the reservoir; and a blocking member that extends from below to above a liquid surface of the ink in the reservoir at a position between a landing position and the supply rotary member, the landing position being a position at which ink that has been scraped off by the regulation member lands on the liquid surface, the blocking member blocking movement of the ink from the landing position to the supply rotary member.08-15-2013
20130208059LIQUID EJECTION APPARATUS - A liquid ejection apparatus includes: a head including: a nozzle configured to eject liquid; a supply port to which the liquid is continuously supplied; and a recovery port from which the liquid is continuously recovered; a supply flow channel through which the liquid is supplied to the head; and a recovery flow channel through which the liquid is recovered from the head. A flow channel resistance inside the head from the supply port to the nozzle is R_HEAD_IN. A flow channel resistance inside the head from the nozzle to the recovery port is R_HEAD_OUT. A flow channel resistance of the supply flow channel is R_CHANNEL_IN. A flow channel resistance of the recovery flow channel is R_CHANNEL_OUT. The supply and recovery flow channels are laid out so as to satisfy a condition of R_CHANNEL_IN>R_CHANNEL_OUT when R_HEAD_IN>R_HEAD_OUT, or a condition of R_CHANNEL_IN08-15-2013

Patent applications in class Fluid supply system

Patent applications in all subclasses Fluid supply system