Entries |
Document | Title | Date |
20080198201 | PRINTING APPARATUS AND PRINTING CONTROL METHOD - This invention is directed to provide a printing apparatus and a printing control method capable of more accurately obtaining a carriage position and executing more precise printing. The printing apparatus includes a scale, having slits at predetermined intervals, provided along the carriage scanning direction, and an encoder provided on a carriage to read the slits and measure the carriage position in the scanning direction as the carriage moves. In the printing apparatus, based on at least a time interval between the measurement time of a slit currently detected by the encoder and the measurement time of a slit immediately before the slit, a time up to at least one point between the currently detected slit and the next slit is predicted. Control is performed to cause a printhead mounted on the carriage to execute printing at the at least one predicted point between the continuous slits. | 08-21-2008 |
20080204517 | Multi-Nozzle Liquid Droplet Ejecting Head, a Writing Instrument Comprising Such a Head, and a Method of Ejecting Liquid Droplets From Same - A liquid droplet ejecting head designed to be mounted in a liquid ejecting instrument that includes ejection nozzles through which droplets are to be ejected from the head, and actuating chambers, each actuating chamber having at least one inlet to be in fluidic connection with a liquid reservoir for providing liquid to the actuating chamber. The ejecting head also includes at least one actuating unit suitable for creating a pulse wave in the liquid contained when activated by energy received from a control device and at least one outlet portion in fluidic connection with at least one ejection nozzle. | 08-28-2008 |
20080204518 | Inkjet Printer With Low Nozzle To Chamber Cross-Section Ratio - Provided is a nozzle arrangement for an inkjet printhead. The nozzle arrangement includes a substrate defining an ink chamber with an ink ejection port and ink holes for receiving ink from an ink reservoir, and a magnetic actuation device arranged in the chamber and actuatable via an external pulsed magnetic field to eject ink via the ink ejection port. The arrangement also includes a blocking mechanism arranged in the chamber and configured to operatively block movement of the actuation device to prevent ejection of ink from the chamber. | 08-28-2008 |
20080204519 | Inkjet Printhead With Laterally Reciprocating Paddle - An inkjet printhead includes a nozzle chamber structure defining a nozzle chamber. The nozzle chamber structure further defines a pair of ink ejection nozzles and an ink supply channel in fluid communication with the nozzle chamber. A movable paddle is disposed within the nozzle chamber at a location between the ink ejection nozzles. An actuator is attached to the paddle and, upon actuation, can reciprocate the paddle toward and away from a first one of the ink ejection nozzles so that ink in the nozzle chamber can be ejected out through that first nozzle. | 08-28-2008 |
20080211875 | Inkjet nozzle device with cantilevered actuating arm - A nozzle device is provided for an inkjet printer. The nozzle device includes a support structure defining an ink inlet chamber connected to a source of ink. A nozzle chamber structure defines a nozzle chamber for receiving ink from the ink inlet chamber and a nozzle opening through which ink in the nozzle chamber can be ejected. An elongate actuating arm is cantilevered relative to the support structure and terminates in a movable free end within the nozzle chamber. The actuating arm includes an active portion connected electrically to a current source, and which heats and expands upon activation of the current source. The actuating arm further includes a passive portion which is electrically isolated from the current source and is mechanically coupled to the active portion via at least one separating element. Differential expansion between the active and passive portions can cause the actuating arm to bend and the free end of the actuating arm to move within the nozzle chamber to eject ink therein through the nozzle opening. | 09-04-2008 |
20080211876 | Printhead For Use In Camera Photo-Printing - A printhead | 09-04-2008 |
20080225085 | FLUID EJECTING HEAD AND FLUID EJECTING APPARATUS - A fluid ejecting head includes a fluid storage chamber that temporarily stores a fluid, which is supplied from a fluid supply port, a plurality of pressure chambers, to which the fluid stored in the fluid storage chamber is supplied through a plurality of fluid supply paths, respectively, a plurality of driving elements that change pressure in the pressure chambers, respectively, and a plurality of nozzle openings, from which the fluids contained in the pressure chambers are ejected when the driving elements are driven, respectively. A specific driving element most distant from the fluid supply port among the driving elements has a maximum capability to discharge the air bubbles in the fluid from the nozzle opening among the driving elements. | 09-18-2008 |
20080225086 | LIQUID DISCHARGE HEAD - The present invention provides an ink jet recording head which, when a smaller liquid droplet is obtained, can suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port, reduce unstable satellite(s) and realize stable discharging with less image deterioration and less floating mist. In the present invention, two heaters | 09-18-2008 |
20080239004 | INK JET PRINT HEAD AND METHOD OF MANUFACTURING INK JET PRINT HEAD - An ink jet print head is provided which allows an ejection opening-formed surface to be cleaned well and can improve a precision with which ejected ink lands on a print medium. For this purpose, conductive layers of a conductive material are formed on the support substrate and planarized. The liquid ejection substrates are mounted on the support substrate with high precision, without a sealing agent, that protects electrical connecting portions on the liquid ejection substrates, protruding from the ejection opening-formed surface. | 10-02-2008 |
20080239005 | Inkjet Printhead Nozzle Assembly Having A Raised Rim To Support An Ink Meniscus - Provided is a nozzle assembly for an inkjet printhead. The nozzle assembly includes a substrate defining a nozzle chamber and an ink inlet channel leading to said chamber. The nozzle assembly also includes a nozzle defined on the substrate and located over the nozzle chamber, said nozzle having a crown portion with a skirt portion depending from the crown portion, the skirt portion forming a first part of a peripheral wall portion of the nozzle chamber, the nozzle surrounded by a raised rim which supports a meniscus of a body of ink in the nozzle chamber. Also included is an actuator with a connecting arm fast with the nozzle to operatively displace the nozzle towards the substrate, wherein the nozzle, actuator and connecting arm are defined according to micro-electromechanical systems (MEMS) techniques. | 10-02-2008 |
20080246813 | INK JET PRINT HEAD - An ink jet print head is provided which, during a suction-based recovery operation, can effectively remove air bubbles from the common ink path by producing an ink flow in the common ink path. In each of a plurality of bubble forming chambers where an element is installed to generate a thermal energy, there are provided a first ink path for leading ink directly from the ink supply port and a second ink path for leading ink from the common ink path formed on a far side of the array of the bubble forming chambers with respect to the ink supply port. The plurality of the first ink paths include those ink paths with less flow resistance than that of the second ink paths and those ink paths with higher flow resistance than that of the second ink paths. | 10-09-2008 |
20080246814 | INKJET PRINTHEAD WITH NOZZLE ARRANGEMENTS HAVING COATED HEATER ELEMENTS - Provided is an inkjet printhead having an array of micro-electromechanical nozzle arrangements. Each nozzle arrangement includes side walls located on a wafer substrate with a roof layer deposited on said walls to define an ink chamber. The roof layer defines a nozzle aperture and an inlet is defined in the substrate to supply the ink chamber with printing fluid. The nozzle arrangement also includes at least one heater element suspended between the side walls in the chamber, so that when electrical actuation energy of less than 500 nanojoules is applied to the heater element, a vapour bubble is formed in the fluid leading to a pressure increase in the chamber thereby ejecting the fluid via the nozzle aperture. The heater element is substantially covered by a conformal protective coating applied to all sides of the heater element simultaneously such that the coating is seamless. | 10-09-2008 |
20080246815 | NOZZLE ASSEMBLY FOR A PRINTHEAD ARRANGEMENT WITH GUTTER FORMATIONS TO PREVENT NOZZLE CONTAMINATION - A printhead arrangement for a printer, the arrangement having a plurality of nozzle assemblies formed on a wafer substrate by means of micro-electromechanical (MEMS) techniques. Each assembly includes an ink chamber with at least one ink supply channel etched into the substrate, and a heater element suspended in the ink chamber. Each assembly also includes drive circuitry for driving said heater element, and a nozzle plate defining two ink ejection nozzles. The nozzle plate has gutter formations about each nozzle to collect ink run-off. | 10-09-2008 |
20080252692 | Method Of Bonding A Micro-Fluid Ejection Head To A Support Substrate - A substantially planar micro-fluid ejection device, where the micro-fluid ejection head is covalently bound to a substantially planar support material, and a method of making the same. | 10-16-2008 |
20080252693 | METHOD, APPARATUS AND PRINTHEAD FOR CONTINOUS MEMS INK JETS - An embodiment relates generally to a method of ejecting ink. The method includes providing a continuous stream of ink from a pressurized fluid chamber and activating a drive signal to activate a micro-electrostatic mechanical system (MEMS) membrane. The method also includes stably breaking up the jet stream into uniform droplets in response to deflecting the MEMS membrane to perturb the continuous stream of ink. | 10-16-2008 |
20080252694 | INK JET PRINTHEAD WITH GLASS NOZZLE CHAMBERS - An ink jet printhead is provided. The printhead comprises: a silicon substrate; a CMOS layer comprising drive and control circuitry, the CMOS layer being formed on the silicon substrate; a passivation layer covering the CMOS layer; and a plurality of nozzles mounted on the passivation layer. Each nozzle comprises a chamber adapted to contain an ejectable liquid; and a droplet ejection actuator associated with each of the chambers respectively, the droplet ejection actuator being electrically connected to the drive circuitry and adapted to eject a droplet of the ejectable liquid from the nozzle. The chambers are comprised of a glass material. | 10-16-2008 |
20080252695 | DROPLET DISCHARGE HEAD, DROPLET DISCHARGE DEVICE, AND DISCHARGE CONTROLLING METHOD THEREOF - A droplet discharge head includes: a nozzle; a plurality of discharge chambers each of which is provided with a respective one of a plurality of vibrating plates to be displaced so as to pressurize a liquid, and formed in series in a flow channel, communicating with the nozzle, of the liquid; and a fixed electrode that is opposed to each of the vibrating plates of each of the discharge chambers and generates an electrostatic force for displacing each of the vibrating plates. In the droplet discharge head, removing volumes removed by the displacement of the vibrating plates are different from each other. | 10-16-2008 |
20080259126 | PRINTING CONTROL - Various methods and apparatus relating to the control of printing by a print head based upon a captured image of an array of printed marks are disclosed. | 10-23-2008 |
20080259127 | DROP EMITTING APPARATUS - A drop emitting apparatus including a manifold, a viscoelastic structure acoustically coupled to the manifold, and a plurality of drop generators fluidically coupled to the manifold. | 10-23-2008 |
20080266359 | LIQUID RECORDING HEAD - A recording head configured to discharge ink from a nozzle includes a cantilever and a liquid chamber. The cantilever has a free end and a fixed end and bends to generate a pressure for discharging ink. The liquid chamber communicates with the nozzle. The cantilever is disposed in the liquid chamber. The cantilever has a stepped portion on or in a surface facing the nozzle and in the vicinity of the free end. | 10-30-2008 |
20080266360 | Ink-jet head and manufacturing method thereof - An ink-jet head and a method of manufacturing the ink-jet head are disclosed. The ink-jet head may include: an upper substrate, formed by processing a chamber in a silicon substrate; a middle substrate, bonded to the upper substrate and formed by processing an ink channel, which connects with the chamber, in a glass substrate; and a lower substrate, bonded to the middle substrate and formed by processing a nozzle, which connects with the ink channel, in a silicon substrate. With certain embodiments of the invention, a high level of precision may be obtained for the structures formed in the upper substrate and the lower substrate, and the middle substrate may be manufactured in low cost. Also, the substrates may be bonded together in a facilitated manner, so that production yield may be increased. | 10-30-2008 |
20080266361 | ENERGY CONTROL OF A NOZZLE OF AN INKJET PRINTHEAD - A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current, a shift register comprising a plurality of successive registers, the shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal, a transfer register for latching data in one of the registers of the shift register; a control gate for outputting a control pulse in response to data in the transfer register, and a drive transistor for providing an energy pulse to the resistive element of the actuator upon receipt of the control pulse. Each energy pulse has energy of less than 1 microjoule. | 10-30-2008 |
20080273060 | Liquid discharging apparatus and liquid discharging method - In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging states of the droplets from the liquid discharging portions, and information about a defective liquid discharging portion having discharging failure is obtained by checking the discharging states. According to the information, the defective liquid discharging portion is prohibited form discharging, and discharging of droplets from a liquid discharging portion near the defective liquid discharging portion is controlled to reduce the influence of discharging failure of the defective discharging portion, and to correct image information on a recording medium. | 11-06-2008 |
20080278544 | FLUID INJECTION DEVICE AND METHOD FOR FABRICATING AND OPERATING THEREOF - A fluid injection device and a method for fabricating and operating thereof are provided. The fluid injection device comprises a first substrate having an actuator thereon, a second substrate correspondingly disposed on the first substrate to form a nozzle and a fluid channel. A deformable unit having a first volume is formed in the fluid channel. A fluid is sandwiched between the first and second substrates and surrounds the deformable unit and the actuator. In the fluid injection device, the deformable unit is transformed from the first volume to a second volume to control direction and size of droplet ejected from the nozzle. | 11-13-2008 |
20080291247 | DROPLET DISCHARGE HEAD, DROPLET DISCHARGE APPARATUS, AND METHOD FOR DISCHARGE CONTROL IN DROPLET DISCHARGE HEAD - A droplet discharge includes: a nozzle discharging a liquid as a droplet; a discharge room having a diaphragm and disposed in a channel of the liquid, the channel communicating with the nozzle, the diaphragm pressurizing the liquid by being displaced and being a part of the discharge room; and a fixed electrode facing the diaphragm and generating electrostatic force with respect to the diaphragm by receiving electric charge so as to displace the diaphragm by bringing the diaphragm into contact with and detaching the diaphragm from the fixed electrode. The fixed electrode includes: a first fixed electrode received the electric charge from an outside; and a second fixed electrode made of a material different from a material of the first fixed electrode and received the electric charge through the first fixed electrode. | 11-27-2008 |
20080291248 | INKJET RECORDING HEAD AND MANUFACTURING METHOD THEREOF - An inkjet recording head, wherein a support member being formed by at least two layers is provided between an ink supply member and a recording element substrate having a substrate, which includes discharge ports to discharge ink and an energy generating element to generate energy to discharge the ink from the discharge ports. | 11-27-2008 |
20080303869 | INK JET PRINT HEAD AND MANUFACTURING METHOD THEREOF - An ink jet print head and a manufacturing method thereof that is improved so as to simplify a glue layer forming process including a glue layer of the ink jet print head is made of a silicone modified resin having a photosensitive property, such as a silicone modified polyimide resin. The glue layer can be formed by coating a silicone modified polyimide resin solution on a substrate, forming a silicone modified polyimide resin layer by vaporizing a solvent from the coated silicone modified polyimide resin solution, and patterning the silicone modified polyimide resin layer. | 12-11-2008 |
20090033718 | Actuator - In one embodiment an electrostatic actuator includes: a first conductor associated with each chamber; a second conductor having a plurality of flexible first parts supported by a plurality of second parts, each flexible first part forming at least part of a wall of each chamber and each flexible first part located opposite a corresponding one of the first conductors across a gap; and a voltage source operatively connected to each of the first conductors for selectively applying a voltage between each of the first conductors and the second conductor In another embodiment, an electrostatic actuator includes: a plurality of rigid conductors arranged adjacent to one another along a chamber; and a flexible conductor disposed opposite to and spanning the plurality of first conductors across a gap, the flexible conductor forming at least part of one wall of the chamber such that flexing the flexible conductor flexes the wall to change the volume of the chamber. | 02-05-2009 |
20090046127 | Inkjet Printhead With High Nozzle Area Density - Inkjet printheads with high nozzle areal density are disclosed. Various structures are shown where the areal density of nozzles is greater than 200 million per square meter. | 02-19-2009 |
20090058945 | MICRO-FLUID EJECTION HEADS AND METHODS FOR BONDING SUBSTRATES TO SUPPORTS - A substantially planar micro-fluid ejection device, where the micro-fluid ejection head is hermetically sealed and bonded to a support material, and a method of bonding a silicon device, such as a micro-fluid ejection head, to a support material. | 03-05-2009 |
20090066759 | METHODS AND APPARATUS FOR IMPROVED EJECTION HEAD PLANARITY AND REDUCED EJECTION HEAD DAMAGE - A micro-fluid ejection head assembly having improved assembly characteristics and methods of manufacturing a micro-fluid ejection head assembly. The micro-fluid ejection head includes a fluid supply body having at least one fluid supply port in a recessed area therein. A reinforcing member circumscribes the fluid supply port. A micro-fluid ejection head is attached with an adhesive to the supply body in the recessed area so that cracking of the ejection head during adhesive curing is substantially reduced. | 03-12-2009 |
20090066760 | Inkjet Printhead Assembly - A printhead assembly is disclosed. The printhead assembly comprises a printhead formed from a silicon substrate, and a support member. The support member comprises a core element defining a plurality of ink reservoirs and a multilayer shell. Each ink reservoir is in fluid communication with the printhead. The multilayer shell is formed around at least part of the core element, and has an effective coefficient of thermal expansion which is comparable to that of silicon. | 03-12-2009 |
20090122115 | INK-JET RECORDING HEAD AND INK-JET RECORDING DEVICE - The present invention provides an ink-jet recording head. The ink-jet recording head includes a nozzle that ejects an ink droplet; an ink flow path member that includes the nozzle; a beam member connected to the ink flow path member or which includes the ink flow path member; a first drive component connected with and set at the beam member and which bends the beam member; and a second drive component that deforms the beam member so as to become convex from concave in the ink droplet discharging direction. The second drive component deforms the beam member so as to become convex from concave in the ink droplet discharging direction and the first drive component bends the beam member. Thereby, the beam member is buckling reverse deformed with the second drive component. | 05-14-2009 |
20090147053 | LIQUID SUPPLY DEVICE AND LIQUID EJECTING APPARATUS - A liquid supply device includes a liquid supply channel that supplies a liquid from an upstream side as a liquid supply source side to a downstream side, where the liquid is consumed, and a pump that pumps a part of the liquid supply channel as a pump chamber. A first one-way valve in the liquid supply channel on an upstream side from the pump chamber permits ink to flow from the upstream side to the downstream side. A second one-way valve on a downstream side from the pump chamber permits ink to flow from the upstream side toward the downstream side. A liquid pressure accumulation unit with a volume variable pressure accumulation chamber is disposed on a downstream side from the second one-way valve to form a part of the liquid supply channel and stores the liquid in a pressure-accumulated state within the pressure accumulation chamber. | 06-11-2009 |
20090147054 | LIQUID SUPPLY DEVICE, LIQUID EJECTING APPARATUS, AND LIQUID SUPPLY METHOD - A liquid supply device includes a liquid supply channel that supplies a liquid from an upstream side as a liquid supply source side to a downstream side, on which the liquid is consumed, a first valve that is provided in the liquid supply channel to open and close the liquid supply channel, and a second valve that is provided on a downstream side from the first valve in the liquid supply channel to open and close the liquid supply channel. The first valve is closed when the second valve is open. | 06-11-2009 |
20090185008 | INKJET HEAD - An inkjet head includes a flow path unit, an actuator unit, a flat flexile cable, a cover member and plural filters. The actuator unit is joined to an inflow-port face of the flow path unit. The reservoir unit supplies ink in an ink reservoir thereof into the flow path unit through the filters against which a region of the reservoir unit at least partially abuts. A side face of the reservoir unit defines a recess reaching the region of the reservoir unit between adjacent two filters. A sealant is applied to a gap between side faces of the two adjacent filters on the inflow-port face of the flow path unit and applied to the recess. | 07-23-2009 |
20090189955 | LIQUID DROPLET EJECTION HEAD, LIQUID DROPLET EJECTION DEVICE - The present invention provides a liquid droplet ejection head that ejects droplets of high viscosity ink. A liquid droplet of an electrically conductive liquid in the liquid droplet ejection head is ejected from the head, which is provided with difference in potential between the head and an opposing medium, toward the medium. Electricity is conducted between the head and the medium through a tail of the liquid droplet. | 07-30-2009 |
20090195612 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member forming at least a portion of a wall of the liquid supply channel, said diverter member being selectively movable to form a convex surface along which liquid remains attached, thereby to divert droplets from the supply channel through the dispensing outlet opening. The motion of the diverter member is substantially orthogonal to the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume. | 08-06-2009 |
20090207209 | Print Engine Cradle With Maintenance Assembly - A cradle unit for use in a print engine to receive a cartridge unit that has a printhead assembly. The cradle unit has a main body with an opening for receiving the cartridge and drive rollers for feeding sheets of media past the printhead assembly, a printed circuit board (PCB) movably mounted to the main body, the PCB having control electronics for operative control of the print engine, a cover assembly movably mounted to the main body, the cover assembly being configured for securing the cartridge in the opening and engaging the PCB such that the PCB is moved into electrical contact with the cartridge when in a closed position, and to move the PCB out of electrical connection with the cartridge when in an open position and, a maintenance assembly operated by the PCB control electronics for capping and wiping the printhead assembly. | 08-20-2009 |
20090219344 | RECORDING APPARATUS AND INKJET PRINTER - A recording apparatus may comprise a channel unit comprising a pressure chamber configured to store a liquid, and nozzles. The recording apparatus may comprise a reservoir unit connected to the channel unit and comprising a supply port, a drain port, a supply channel communicating with the channel unit, and a drainage channel branching off from the supply channel and communicating with the outside via the drain port. The recording apparatus may comprise a plurality of actuators configured to apply pressure to the liquid in the pressure chamber. The recording apparatus may comprise a meniscus vibrator configured to drive the actuators to vibrate meniscus produced in the nozzles without causing liquid droplets to be ejected therefrom when the liquid supplied from the supply port is being drained from the drain port after traveling through the supply channel and the drainage channel. | 09-03-2009 |
20090244187 | LIQUID EJECTING APPARATUS AND METHOD OF DRIVING LIQUID EJECTING HEAD - A liquid ejecting apparatus includes a liquid ejecting head including pressure generation chambers communicating with nozzle openings for ejecting a liquid and pressure generation units which cause pressure variations in the pressure generation chambers. A driving unit supplies, to the pressure generation units, a driving signal including an expansion element for expanding the pressure generation chambers. A contraction element contracts the pressure generation chambers and a re-expansion element expands the pressure generation chambers before the liquid is ejected from the nozzle openings by the contraction element. The re-expansion element includes a primary expansion element at the contraction element side that expands the pressure generation chambers. A secondary expansion element has at least a variation portion having a voltage variation ratio different from a voltage variation ratio of the primary expansion element in continuation to the primary expansion element and expands the pressure generation chambers. | 10-01-2009 |
20090244188 | LIQUID DROPLET EJECTION HEAD AND METHOD FOR MANUFACTURING THE SAME - An object of the present invention is to provide a liquid droplet ejection head capable of securing sealing of a common liquid chamber and realizing a high damper effect while suppressing a driving energy of the liquid droplet ejection head. A passage unit includes manifold plates, and a damper plate which is stacked on the manifold plates and has a damper wall facing a common liquid chamber. The damper plate is constituted by a base portion having a damping space at a position corresponding to the manifold holes in plan view, and a resin portion stacked on the base portion. The resin portion is formed to cover at least a portion above and around the damping space to constitute the damper wall, be smaller in a contour shape than the common liquid chamber in plan view, and be stored in the manifold holes. | 10-01-2009 |
20090251509 | PRINTHEAD SUBSTRATE, PRINTHEAD, HEAD CARTRIDGE, AND PRINTING APPARATUS - This invention is directed to a head substrate capable of high-quality printing even when the environmental temperature, print duty, and printhead itself change, a printhead, a head cartridge, and a printing apparatus using the printhead. The head substrate includes a plurality of heaters, a constant electric current source which generates a constant electric current used to drive the heaters, and a reference current generation circuit which generates a reference current for generating the constant electric current. The head substrate also includes a MOSFET which drives the heaters by the constant electric current obtained by driving the constant electric current source in accordance with the reference current, and a switch which determines the time for which the reference current is generated. The open-close time of the switch can be externally controlled. | 10-08-2009 |
20090273645 | INKJET PRINTHEAD HAVING PROPORTIONAL EJECTION PORTS AND ARMS - An inkjet printhead is provided having ink chambers, ink ejection ports defined in the chambers, and cantilevered ejection arms positioned in the chambers. Each arm has a displacement area that acts on ink in the respective chamber through cantilevered movement of the arm to eject ink via the respective port. Each displacement area is greater than half an area of the respective port but less than twice the area of that port. | 11-05-2009 |
20090278895 | Liquid ejecting head, image forming apparatus, device for ejecting a liquid drop, and recording method - A liquid ejecting head comprising a nozzle configured to eject a liquid drop of recording liquid, a liquid chamber communicating to the nozzle, and an energy generating device configured to generate energy for pressurizing recording liquid in the liquid chamber is provided, wherein a flow channel forming member configured to form a flow channel for the recording liquid is made of a metal material containing nickel and a peak intensity for a (200) face of nickel is higher than a peak intensity for a (111) face of nickel which intensities are measured by means of X-ray diffraction analysis, or a flow channel forming member configured to form a flow channel for the recording liquid is made of a metal material containing nickel and thallium. | 11-12-2009 |
20090278896 | LIQUID JETTING HEAD - Disclosed is a liquid jetting head which can contribute to downsizing. A head unit | 11-12-2009 |
20090315949 | METHOD OF MANUFACTURING PRINT HEAD AND PRINT HEAD - The present invention provides a checker array print head configured to be able to output an image with possible white or black stripes made unnoticeable even when the conveyance direction of a print medium with respect to the ink jet print head is skewed. A first chip | 12-24-2009 |
20090315950 | LIQUID EJECTION HEAD, METHOD FOR MANUFACTURING LIQUID EJECTION HEAD, AND METHOD FOR MANUFACTURING STRUCTURE - A method for manufacturing a liquid ejection head including a substrate and a member, disposed above the substrate, having passages communicatively connected to discharge ports through which a liquid is ejected includes providing first solid layers made of a positive photosensitive resin above the substrate such that outer side surfaces of the first solid layers form an obtuse angle with the substrate; providing a second solid layer above the substrate such that the second solid layer abuts the outer side surfaces of the first solid layers, the second solid layer being processed into at least one portion of a mold for the passages; exposing portions of the outer side surfaces of the first solid layers through the second solid layer; removing the exposed portions from the first solid layers; and providing a cover layer over the second solid layer, the cover layer being processed into the member. | 12-24-2009 |
20100026763 | PRINTHEAD HAVING CMOS DRIVE CIRCUITRY - A printhead is provided having a plurality of integrated circuits defining an elongate printing zone of at least 914 mm, each integrated circuit having a plurality of ejection nozzles, and CMOS drive circuitry operatively connected to the integrated circuits to drive operation thereof. | 02-04-2010 |
20100039476 | METHOD AND INKJET PRINTING APPARATUS EJECTING INK IN DEFLECTED FASHION - A method and an inkjet printing apparatus for ejecting ink in a deflected manner are provided. The inkjet printing apparatus includes an inkjet printhead having a passage plate, an electrostatic-force-application unit, and a heating unit. The passage plate includes ink chambers that hold ink and nozzles that eject the ink from the ink chambers as ink droplets. The electrostatic-force-application unit applies an electrostatic force. The heating unit heats up a portion of the ink inside the nozzles. The heating unit can include heaters disposed around each nozzles or a laser diode disposed outside the inkjet printhead. The electrostatic force forms a meniscus at the surface of the ink inside the nozzle. When a portion of the ink inside the nozzle is heated by the heating unit, the shape of the meniscus is changed and the direction in which the ink droplets are ejected through the nozzles is deflected. | 02-18-2010 |
20100045746 | SEALED NOZZLE ARRANGEMENT FOR PRINTHEAD - A nozzle arrangement for a printhead integrated circuit is provided having a fluid chamber having a fluid ejection port, a fluid ejecting member displaceable within the chamber to eject fluid from the ejection port, an actuator for causing displacement of the ejecting member from outside the chamber, and a resiliently deformable seal on the chamber for fluidically sealing the chamber about the ejecting member. | 02-25-2010 |
20100053276 | Printhead Integrated Circuit Comprising Resistive Elements Spaced Apart From Substrate - A printhead integrated circuit comprises inkjet nozzle assemblies disposed on a substrate. Each nozzle assembly comprises a nozzle chamber having a nozzle aperture and an actuator associated with the nozzle chamber. The actuator ejects an ink droplet from the nozzle aperture when a resistive element of the actuator is heated by an electrical current. The resistive element of the actuator is spaced apart from the substrate. | 03-04-2010 |
20100073428 | Printing Integrated Circuit Having Piston Ejection - A printing integrated circuit is provided which has a substrate, fluid chambers on the substrate, pistons within the chambers and actuators connected to the pistons. Each chamber has an ejection port. Each piston is displaceable within the respective chamber to generate a fluid pressure pulse within that chamber thereby causing fluid ejection from the respective ejection port. Each actuator is configured to cause the displacement of the respective piston through heating of that actuator. The pistons are arranged in the chambers so that the ejection ports are adjacent a distal end portion of the pistons with respect to the connected actuators. | 03-25-2010 |
20100073429 | Inkjet Nozzle Device With Cantilevered Actuating Arm - A nozzle device for an inkjet printer includes a support structure defining an ink chamber connected to a source of ink; a nozzle chamber for receiving ink from the ink chamber; a nozzle opening through which ink in the nozzle chamber is ejected; and an elongate actuating arm cantilevered relative to the support structure and terminating in a movable free end within the nozzle chamber, the actuating arm comprising an active portion connected electrically to a current source and a passive portion electrically isolated from the current source. The passive portion is mechanically coupled to the active portion via at least one separating element, whereby differential expansion between the active and passive portions causes the actuating arm to bend and the free end of the actuating arm to move within the nozzle chamber to eject ink therein through the nozzle opening. The elongate actuating arm divides the nozzle chamber from the ink chamber. | 03-25-2010 |
20100079549 | INKJET PRINTER WITH SMALL DROP SIZE - An inkjet printer configured for ejecting ink droplets having a volume in the range of 1 to 2.5 pL, the printer comprising: a printhead having a plurality of nozzles assemblies, each nozzle assembly comprising: a nozzle chamber for containing ink, the chamber having a nozzle opening and an ink inlet, the nozzle opening having a maximum dimension in the range of 4 to 12 microns; and a bend actuator for ejecting ink droplets from the nozzle opening by generating a positive pressure pulse in the ink during bending of the actuator; and an ink supply system configured for supplying ink to the printhead at a positive hydrostatic pressure in the range of 1 to 300 mm H | 04-01-2010 |
20100085402 | Printhead Integrated Circuit With A Solenoid Piston - The invention provides for a printhead integrated circuit for an inkjet printer. The printhead integrated circuit includes a wafer substrate defining a nozzle outlet port. The printhead integrated circuit also includes an electromagnetic piston inside the chamber, the piston mounted to the wafer substrate via torsion springs, said piston operatively forced towards the outlet port when activated. Also included is a solenoid coil positioned on the wafer substrate about the piston to activate the piston when a current is passed through the coil. | 04-08-2010 |
20100123757 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes pressure generation elements that apply pressure change to liquid retained in corresponding pressure generation chambers to discharge the liquid from corresponding nozzle openings. Each of the pressure generation elements is fixed to a fixation plate. Nozzle lines include nozzle openings arrayed in a line. An electrical signal is sent through a flexible substrate from the outside to the pressure generation chambers. Pressure generation elements associated with the pressure generation chambers are fixed to the fixation plate, with the fixation plate being positioned between the pressure generation elements of each of two parallel nozzle lines. A wiring portion is formed at one end part of the fixation plate opposite to the other end that is closer to the pressure generation chambers. The flexible substrate is connected to the wiring portion. | 05-20-2010 |
20100149272 | UV-CURABLE COATINGS AND METHODS FOR APPLYING UV-CURABLE COATINGS USING THERMAL MICRO-FLUID EJECTION HEADS - An aqueous-based UV-curable fluid composition for use in a micro-fluid ejection device. The fluid composition includes a mixture of poly-functional compounds, a colorant compound, a photo-initiator and less than about 50 weight percent water based on a total weight of the fluid composition, wherein the fluid composition is substantially devoid of volatile organic carrier fluids. | 06-17-2010 |
20100156995 | LIQUID DROPLET EJECTING HEAD AND LIQUID DROPLET EJECTING APPARATUS - A liquid droplet ejecting head of an aspect of the invention includes: a nozzle ejecting a liquid-droplet; a liquid flow path member in which a liquid is supplied toward the nozzle; a back-pressure generating unit applying back-pressure to the liquid in a liquid-flow-path toward the nozzle; a beam member joined together with or including the liquid flow path member, deforming to become concave in a liquid-droplet ejection direction, thereafter undergoing buckling reverse deformation to become convex in the ejection direction, and applying inertia to the liquid near the nozzle in the ejection direction, to cause the liquid near the nozzle to be ejected; an opening disposed on an opposite side of the liquid flow path member in the ejection direction and communicated with the atmosphere; a suction path whose suction opening is directed toward near the nozzle; and a negative-pressure generating unit generating negative-pressure in the suction path. | 06-24-2010 |
20100156996 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid discharge head includes a liquid discharge substrate including a discharge port for discharging liquid, and a flow path member including a transparent member that is transparent to a laser beam, an absorption member capable of absorbing a laser beam, and a flow path for supplying liquid to the liquid discharge substrate, wherein the flow path is formed between the transparent member and the absorption member by emitting a laser beam toward a flow path portion of the absorption member constituting a portion of a wall of the flow path and toward a periphery of the flow path portion through the transparent member and thereby welding the transparent member and the absorption member at the periphery of the flow path portion, and wherein the flow path portion includes an inclined surface inclined with respect to a direction of the laser beam that has passed through the transparent member. | 06-24-2010 |
20100165050 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - Provided is a liquid ejecting head including a plurality of substrates that are at least partially bonded to one another with adhesives and form a liquid passage in which a liquid flows. The liquid passage includes a pressure-generating chamber that communicates to a nozzle opening through which the liquid is ejected. The adhesive being exposed to a wall surface of the passage on the upstream side of the pressure-generating chamber is composed of a first adhesive, and the adhesive being exposed to a wall surface of the downstream-side passage including the pressure-generating chamber is composed of a second adhesive. The second adhesive has affinity with the liquid higher than that of the first adhesive. | 07-01-2010 |
20100182379 | FLUID-EJECTING INTEGRATED CIRCUIT UTILIZING ELECTROMAGNETIC DISPLACEMENT - A fluid ejecting integrated circuit (IC) includes a nozzle chamber defined by chamber side walls extending from a wafer substrate, and a roof wall provided on the chamber side walls; a fluid ejecting member provided within the nozzle chamber between the roof wall of the nozzle chamber and the wafer substrate; a support formation provided within the nozzle chamber and spaced inwardly away from the chamber side walls, the support formation extending from the wafer substrate to support the fluid ejecting member thereon; a first planar electrode layered to the fluid ejecting member; a second planar electrode layered on the wafer substrate; and a projection provided on the first planar electrode on a side facing the second planar electrode, the projection for contacting the second planar electrode to prevent contact between the first planar electrode and the second planar electrode. The first and second planar electrode establish a potential therebetween to deform the first planar electrode towards the second planar electrode. | 07-22-2010 |
20100188464 | Method And Apparatus For Printing Fluid On A Substrate | 07-29-2010 |
20100208001 | PRESSURE-REGULATING VALVE AND LIQUID DROPLET EJECTION APPARATUS HAVING THE SAME - A pressure-regulating valve in which the pressure of a functional liquid fed to a primary chamber from a functional liquid feeding means is regulated by opening and closing a valve body, the functional liquid is fed to a secondary chamber, and the functional liquid is fed from the secondary chamber to an inkjet-type functional droplet ejection head; wherein the valve body has a valve body main body that directly opens and closes with respect to a valve seat, the valve body main body being provided to the primary chamber; and a valve holder including a holding part that holds the valve body main body and an actuating shaft that comes in contact with a pressure-receiving membrane, the actuating shaft extending concentrically through the communication flow passage from the holding part; the actuating shaft is formed so as to taper to a point toward the pressure-receiving membrane; and the communication flow passage is formed to have a complementary shape with respect to the actuating shaft. | 08-19-2010 |
20100225706 | Liquid Droplet Jetting Apparatus and Liquid Droplet Jetting Method - A liquid droplet jetting apparatus is provided. The liquid droplet jetting apparatus includes: a plurality of pressure chambers, in each of which is disposed a nozzle for jetting a liquid filling the pressure chambers; a common supply channel that is equipped with branching channels connected to each of the pressure chambers and which supplies the liquid to each of the pressure chambers from the branching channels such that the liquid fills each of the pressure chambers; and a pressure applying component that applies pressure to the liquid filling the pressure chambers to cause the liquid to be jetted from the nozzles such that a frequency of pressure waves propagating in the liquid inside the common supply channel when pressure has been applied to the liquid filling the pressure chambers does not become equal to a resonance frequency of the common supply channel. | 09-09-2010 |
20100253746 | ELECTROSTATIC ACTUATOR, LIQUID DROPLET DISCHARGING HEAD, METHODS FOR MANUFACTURING THEM, AND LIQUID DROPLET DISCHARGING APPARATUS - To allow formation of an insulation film to be applied even to a glass substrate without depending on a substrate material so as to improve pressure generated by an electrostatic actuator, as well as to achieve improvement in driving stability and driving durability of the electrostatic actuator at a low cost. An electrostatic actuator including an individual electrode formed on a substrate, a vibration plate arranged opposite to the individual electrode via a predetermined gap and a driving means for causing a displacement of the vibration plate by generating an electrostatic force between the individual electrode and the vibration plate includes an insulation film provided on one or both of opposing surfaces of the fixed electrode and the movable electrode and a surface protection film provided on the insulation film. The surface protection film is made of a hard ceramic film or a hard carbon film. | 10-07-2010 |
20100265300 | INK FOR PRINTING ON A GAME BALL - An ink, method of inkjet printing the ink and game ball utilizing the ink are disclosed. The ink preferably comprises a diacrylate oligomer. The ink more preferably comprises an acrylate monomer in an amount ranging from 15 to 40 parts of a solid component of the ink, a diacrylate oligomer in an amount of 20 to 40 parts of a solid component of the ink, a pigment in an amount of 5 to 15 parts of a solid component, and a thinning agent. | 10-21-2010 |
20100271433 | INKJET INKSET AND METHODS - There is disclosed an ink set and method for printing an inkjet ink image on a nonporous substrate. The inkset and method comprise one or more inkjet inks comprising at least one first pigment-based inkjet ink having a first colorant load of a pigment and a polymeric latex binder; and at least one second pigment-based inkjet ink having a second colorant load of the pigment and a polymeric latex binder, the second colorant load being less than the first colorant load, and the second pigment-based inkjet ink applied to a substrate in an amount to provide a total ink loading of from about 10 g/m | 10-28-2010 |
20100271434 | PRINTHEAD WITH MOVABLE EJECTION ORIFICE - An inkjet printhead that has a first layer with an opening, a second layer with a hole and a flexible element supported by the second layer. The flexible element has an orifice through which ink is ejected. An actuator deflects the flexible element to force the ink through the orifice. The hole and the opening are in fluid communication to supply ink to the flexible element. | 10-28-2010 |
20100271435 | RECORDING INK, INK CARTRIDGE, INK RECORD, INKJET RECORDING APPARATUS, AND INKJET RECORDING METHOD - The object of the invention to provide a recording ink with excellent discharge stability and storage stability, which rapidly penetrates into a recording medium and forms a coating, and which will never generate smearing upon high-speed printing or double-sided printing, and which excels in marker resistance, and which enables high quality image recording with less bleeding, and the ink cartridge, the ink record, the inkjet recording apparatus, and the inkjet recording method using the recording ink. The recording ink containing at least water, a colorant, a resin fine-particle, a water-soluble organic solvent and a penetrant, in which the penetrant is a diol compound whose carbon number is 7 to 11 and the resin fine-particle is a silicone modified acrylic resin not containing a hydrolyzable silyl group | 10-28-2010 |
20100277548 | INKJET RECORDING INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDING APPARATUS, AND INK RECORDED MATTER - The present invention provides an inkjet recording ink containing at least a pigment dispersion liquid A containing at least a first carbon black, a dispersant, and water, and a self-dispersible pigment dispersion liquid B which contains a second carbon black having a surface functional group, wherein a mass ratio (Ac:Bc) of the amount of the first carbon black (Ac) in the pigment dispersion liquid A to the amount of the second carbon black (Bc) having a surface functional group in the self-dispersible pigment dispersion liquid B is 98:2 to 50:50. | 11-04-2010 |
20100295901 | FLUID DISPENSING SUBASSEMBLY WITH POLYMER LAYER - A fluid dispensing subassembly has a diaphragm arranged to be operated on by a transducer, a body pressure chamber arranged to be operated on by the diaphragm, and an adhesive attachment layer arranged between the diaphragm and the body pressure chamber. A fluid dispensing subassembly has a body pressure chamber formed of either a single plate or set of plates, a diaphragm arranged to operate on the body pressure chamber, and an adhesive layer arranged between the body pressure chamber and the diaphragm. A method of manufacturing a fluid dispensing subassembly includes forming a body pressure chamber from a body plate or a set of plates including a body plate, and adhesively bonding a diaphragm plate to at least the body plate of the fluid dispensing subassembly. | 11-25-2010 |
20100302319 | PATTERN DRAWING METHOD AND PATTERN DRAWING APPARATUS - Disclosed herein is a fine and thick wiring drawn at high speed in such a manner that a region on the substrate, on which region the liquid droplet is scheduled to impact, is heated beforehand, and that immediately after the impact of the liquid droplet on the substrate, the liquid droplet is promptly solidified so as thereby to suppress the spread of the liquid droplet due to the wettability of the liquid droplet to the substrate, and also to suppress the clogging of the nozzle due to the heating of the substrate. Thereby, even in the case where a liquid droplet having a larger volume than before is used, high-speed drawing of a thick and fine wiring having a line width approximately equal to the liquid droplet size is realized independently of the substrate material. | 12-02-2010 |
20100309259 | PRINT HEAD DIAPHRAGM SUPPORT - A print head ( | 12-09-2010 |
20100315470 | LIQUID EJECTION METHOD, LIQUID EJECTION APPARATUS AND LIQUID EJECTION HEAD - There is provided a liquid ejecting method using a liquid ejection head including a first ejection port for ejecting an ink containing a color material, a first energy generating element for generating energy utilized for ejecting the ink from the first ejection port, a second ejection port for ejecting an improvement liquid for improving recording property of the ink, and a second energy generating element for generating energy utilized for ejecting the improvement liquid from the second ejection port. The method includes ejecting the ink from the first ejection port by driving the first energy generating element, and ejecting the improvement liquid from the second ejection port by driving the second energy generating element, in a state where a liquid level of the improvement liquid in the second ejection port has moved forward in a liquid ejection direction than a liquid level of the ink in the first ejection port when the first energy generating element is driven. | 12-16-2010 |
20100321443 | MICRO-FLUIDIC ACTUATOR FOR INKJET PRINTERS - An inkjet printing device includes an ink reservoir containing ink and having an outlet through which the ink passes for ejection onto a print medium; a micro-fluidic actuator having at least (i) an inlet channel through which fluid enters; (ii) a chamber through which the fluid is received from the inlet channel; (iii) an outlet channel that receives the fluid from the chamber and passes the fluid through the outlet channel so that a conduit pathway for the fluid is formed from the inlet channel, chamber and outlet channel; (iv) a flexible member that forms a portion of a wall of the chamber and that displaces in response to fluidic pressure; (v) at least a first valve in the conduit pathway which, when the valve is activated, causes flow of the fluid through the conduit pathway to be altered so that pressure of the fluid passing through the chamber changes which, in turn, causes the flexible member to displace which, in turn, causes the ink to be ejected or not ejected from the ink reservoir according to the displacement of the flexible member. | 12-23-2010 |
20100321444 | INKJET PRINTERS HAVING MICRO-FLUIDIC ACTUATORS - A printer includes (a) an ink reservoir containing ink and having an outlet through which the ink passes for ejection onto a print medium; (b) a micro-fluidic actuator having (i) an inlet channel through which fluid enters; (ii) a chamber through which the fluid is received from the inlet channel; (iii) an outlet channel that receives the fluid from the chamber and passes the fluid through the outlet channel so that a conduit pathway for the fluid is formed from the inlet channel, chamber and outlet channel; (iv) a flexible membrane that forms a portion of a shared wall between the chamber and the ink reservoir and that displaces in response to fluidic pressure; (v) at least a first valve in the conduit pathway which, when the valve is activated, causes flow of the fluid through the conduit pathway to be altered so that pressure of the fluid passing through the chamber changes which, in turn, causes the flexible membrane to displace which, in turn, causes the ink to be ejected or not ejected from the ink reservoir according to the displacement of the flexible membrane. | 12-23-2010 |
20100321445 | INK JET PRINTER AND AN INK JET PRINTING PROCESS - The invention provides a drop-on-demand ink jet printing apparatus for printing inks comprising water or a volatile solvent onto a continuous web substrate, the printing apparatus comprising: a print head, a chamber for retaining water or solvent vapour in the vicinity of the print head, the chamber having an inlet for the continuous web substrate and an outlet for the printed continuous web substrate, and means for feeding the continuous web substrate through the chamber inlet into the chamber, past the print head and out of the chamber outlet. | 12-23-2010 |
20100321446 | LIQUID DISCHARGE RECORDING HEAD - A liquid discharge recording head comprising a plurality of recording element boards for discharging black ink and color ink, by which image quality of color ink is improved without decreasing image quality of black ink. The liquid discharge recording head including: a first recording element board including a first discharge aperture for discharging liquid; a second recording element board including a second discharge aperture, the second discharge aperture being smaller than the first discharge aperture; and a support member including a face for supporting the first recording element board and the second recording element board. A distance from the face of the support member to the second discharge aperture is longer than a distance from the face of the support member to the first discharge aperture. | 12-23-2010 |
20100328401 | THERMAL INK JET INK COMPOSITION - A solvent-based inkjet ink composition for inkjet printing includes at least 50 weight percent solvent, a colorant, a humectant, from 0.3 weight % to 8 weight % of a binder resin, and not more than 5 weight percent water. The ink composition is compatible with components of a thermal ink jet printer. | 12-30-2010 |
20110018943 | LIQUID EJECTING HEAD, MANUFACTURING METHOD THEREOF, AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes: a flow path forming substrate; an actuator device having a plurality of mounting portions provided on the flow path forming substrate; a wiring substrate which has flexibility and is electrically connected to the mounting portions to supply a driving signal to the actuator device; and a protective substrate provided on the mounting portions side of the flow path forming substrate, wherein a plurality of through-holes, into which the wiring substrate can be inserted, is provided in the protective substrate, a partition wall partitioning the mounting portions is provided between at least adjacent through-holes, and resin is provided in the through-holes. | 01-27-2011 |
20110025783 | SURFACE-TREATED PIGMENT, INK COMPOSITION, AND INK JET RECORDING METHOD - Provided is a surface-treated pigment that is a metallic pigment composed of plate-like particles of which surfaces are treated with an alkoxysilane compound having at least one glycidyl group and one methoxy group. | 02-03-2011 |
20110057992 | LIQUID EJECTION HEAD, MANUFACTURING METHOD THEREFOF, AND IMAGE FORMING APPARATUS - A liquid ejection head is disclosed. The liquid ejection includes a flow channel plate, the flow channel plate being formed from one thin plate, the flow channel plate being formed with one or more pressure generating chambers, a fluid resistance section which supplies liquid to the pressure generating chamber, and a nozzle hole which opposes the pressure generating chamber. The flow channel plate is made of a metal material, and wherein the flow plate includes the pressure generating chamber which is formed of a groove-shaped indentation; the nozzle hole which is formed at one end in a longitudinal direction of the groove-shaped indentation; and the fluid resistance section which is formed at the other end in the longitudinal direction of the groove-shaped indentation. The pressure generating chamber, the nozzle head, and the fluid resistance section are formed such that they deform the thin plate in a thickness direction. | 03-10-2011 |
20110074887 | Inkjet Printing Device - Drop-on-demand inkjet printing device ( | 03-31-2011 |
20110102511 | MANUFACTURING METHOD FOR INK JET RECORDING HEAD CHIP, AND MANUFATURING METHOD FOR INK JET RECORDING HEAD - A manufacturing method for a substrate for an ink jet head, including formation of an ink supply port in a silicon substrate, the method includes a step of forming, on one side of the substrate, an etching mask layer having an opening at a position corresponding ink supply port; a step of forming unpenetrated holes through the opening of the etching mask layer in at least two rows in a longitudinal direction of the opening; and a step of forming the ink supply port by crystal anisotropic etching of the substrate in the opening. | 05-05-2011 |
20110102512 | SUBSTRATE FOR LIQUID DISCHARGING HEAD AND LIQUID DISCHARGING HEAD - In a liquid-discharging-head substrate including a plurality of ink supply ports, if lines are provided on the substrate between adjacent elements, energy generating elements cannot be arranged in high density. A liquid-discharging-head substrate according to the present invention includes an element array in which a plurality of elements configured to generate energy for discharging liquid are arranged, a first common line, a second common line, first individual lines configured to connect the elements and the first common line, and second individual lines configured to connect the elements and the second common line. The element array is provided between the first common line and the second common line, the first individual lines are provided in an area between the element array and the first common line, and the second individual lines are provided in an area between the element array and the second common line. | 05-05-2011 |
20110109697 | Bonded Housing and Fluid Ejector - A method of forming a fluid ejector includes positioning a fluid ejection module such that it is adjacent to a mounting frame, applying heat to a thermohardening glue that is between the fluid ejection module and the mounting frame, and curing the glue to secure the fluid ejection module to the mounting frame. The heat is applied with a heating element at least partially embedded in the glue. | 05-12-2011 |
20110109698 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a momentum as the liquid moves through the liquid ejector channel. A liquid return channel receives the liquid after the liquid passes through the liquid ejector channel. A diverter member forms at least a portion of a wall of the liquid ejector channel. A portion of the diverter member is selectively movable away from the liquid flowing through the liquid ejector channel. The momentum of the liquid causes some of the liquid to be diverted through the outlet opening when the portion of the diverter member is moved away from the liquid flowing through the liquid ejector channel. | 05-12-2011 |
20110109699 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a momentum as the liquid moves through the liquid ejector channel. A liquid return channel receives the liquid after the liquid passes through the liquid ejector channel. A diverter member forms at least a portion of a wall of the liquid ejector channel. A portion of the diverter member is selectively movable into the liquid flowing through the liquid ejector channel. The momentum of the liquid causes some of the liquid to be diverted through the outlet opening when the portion of the diverter member is moved into the liquid flowing through the liquid ejector channel. | 05-12-2011 |
20110134190 | IMAGE FORMING APPARATUS - An image forming apparatus including a first carriage having a recording head that ejects black liquid droplets and is movable in a main scanning direction, a second carriage having a recording head that ejects color liquid droplets and is detachably attachable to the first carriage to move in the main scanning direction together with the first carriage while attached to the first carriage, and a cap member that caps the recording head of the second carriage while the first carriage is moving with the second carriage separated from the first carriage. Attachment and detachment of the second carriage to and from the first carriage are performed within a scanning range through which the first carriage is movable. | 06-09-2011 |
20110141197 | SUBSTRATE FOR LIQUID-EJECTION HEAD, LIQUID EJECTION HEAD, METHOD FOR MANUFACTURING SUBSTRATE FOR LIQUID-EJECTION HEAD, AND METHOD FOR MANUFACTURING LIQUID EJECTION HEAD - When an insulating layer is provided in order to protect an energy generating element, there arises a possibility that the layer dissolves in a contacting liquid. Therefore, in order to eject liquid, a first protection layer containing metal is provided on the insulating layer facing a substrate for a liquid-ejection head and a second protection layer containing metal is provided on the surface of a liquid supply port to which a base containing silicon is exposed. | 06-16-2011 |
20110148987 | LIQUID EJECTION RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - A method includes preparing a liquid ejection recording head that includes a substrate including an element generating energy used to eject liquid, a first supporting portion supporting the substrate, a wiring member including a plurality of electrode leads connected to a plurality of electrode pads provided for the substrate, and a second supporting portion supporting the wiring member, the wiring member including a vent that communicates with a region defined by the substrate, the first supporting portion, and the electrode leads and also communicates with an atmosphere, applying a sealing member to surfaces of the electrode leads, and sucking air in the region through the vent to introduce the sealing member into the region. | 06-23-2011 |
20110148988 | FLUID DROPLET EJECTING - A system for ejecting droplets of a fluid is described. The system includes a substrate having a flow path body that includes a fluid pumping chamber, a descender fluidically connected to the fluid pumping chamber, and a nozzle fluidically connected to the descender. The nozzle is arranged to eject droplets of fluid through an outlet formed in an outer substrate surface. The flow path body also includes a recirculation passage fluidically connected to the descender. The system for ejecting droplets of a fluid also includes a fluid supply tank fluidically connected to the fluid pumping chamber, a fluid return tank fluidically connected to the recirculation passage, and a pump fluidically connecting the fluid return tank and the fluid supply tank. In some implementations, a flow of fluid through the flow path body is at a flow rate sufficient to force air bubbles or contaminants through the flow path body. | 06-23-2011 |
20110157280 | PRINTHEAD NOZZLE ARRANGEMENTS WITH MAGNETIC PADDLE ACTUATORS - A printhead has a plurality of nozzle arrangements. Each nozzle arrangement includes a wafer substrate defining a nozzle chamber, said chamber having a roof wall with an ink ejection port defined therein and an ink supply channel defined through the substrate for supplying the chamber with ink; a magnetic coil arrangement positioned around the inlet of the nozzle chamber; bridge members spanning over the magnetic coil arrangement, the bridge members being supported on support posts protruding from the magnetic coil arrangement and having a resilient characteristic; and a magnetic paddle supported from the bridge members over the inlet, the magnetic paddle for ejecting ink from the chamber via the ejection port. | 06-30-2011 |
20110164091 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - An intermediate liquid chamber is formed between an ink conducting path to which ink is supplied from an ink supply source such as an ink cartridge and a common liquid chamber to which ink to be provided to a plurality of pressure chambers is supplied. The intermediate liquid chamber communicates with both the ink conducting path and the common liquid chamber. The intermediate liquid chamber includes a conducting opening which communicates with the ink conducting path and a discharge opening which is opened to the common liquid chamber. The discharge opening is formed from one edge portion to the other edge portion of the common liquid chamber along a pressure chamber arrangement direction. | 07-07-2011 |
20110169894 | ELECTROSTATIC LIQUID-EJECTION ACTUATION MECHANISM - An electrostatic liquid-ejection actuation mechanism includes a membrane, a frame, and one or more deformable beams. The frame has two sides and a number of cross members that are non-parallel to the two sides. The two sides and the cross members define one or more areas individually corresponding to one or more liquid chambers. The deformable beams are disposed between the membrane and the frame. The deformable beams individually correspond to the liquid chambers, and define a number of slits. Each slit is adjacent to one of the two sides of the frame. The deformable beams have a width that is less than a width of the liquid chambers, due at least to the slits. | 07-14-2011 |
20110175967 | ELECTROMECHANICAL TRANSDUCER FILM AND METHOD FOR MANUFACTURING ELECTROMECHANICAL TRANSDUCER FILM - A method for manufacturing an electromechanical transducer film including a lower electrode and plural layers of a sol-gel solution film formed on the lower electrode by an inkjet method, the method including the steps of a) modifying a surface of the lower electrode, b) forming a first sol-gel solution film on the surface of the lower electrode by ejecting droplets of a sol-gel solution to the surface of the lower electrode, and c) forming a second sol-gel solution film on the first sol-gel solution film by ejecting droplets of the sol-gel solution to a surface of the first sol-gel solution film. Adjacent dots formed on the surface of the lower electrode by the droplets ejected in step b) overlap each other. Adjacent dots formed on the surface of the first sol-gel solution film by the droplets ejected in step c) do not overlap each other. | 07-21-2011 |
20110175968 | Method of Ink-Jet Recording by Ejecting Ink-Jet Ink-Receptive Composition - An ink-jet ink-receptive composition, which resolves problems such as blurring of images and show-through occurring when water soluble dye inks are employed on uncoated paper such as plain paper or ordinary postcards and which provide a high density and high quality image, contains a specific silica particle aggregate and polyvinylpyrrolidone. | 07-21-2011 |
20110175969 | NOZZLE ARRANGEMENT INCLUDING ACTIVE AND STATIC INK EJECTING MEMBERS DEFINING VARIABLE-VOLUME CHAMBER - A nozzle arrangement for an inkjet printhead includes an ink inlet; a static ink ejecting member bounding the ink inlet; an active ink ejecting member having a roof defining an ink ejection port and sidewalls depending from the roof towards the substrate, the active ink ejecting member and the static ink ejecting member together defining a nozzle chamber; and an actuator arrangement configured to reciprocate the active ink ejection member relative to the static ink ejecting member to eject ink in the nozzle chamber out through the ink ejection port. The static ink ejecting member is located within bounds delimited by the sidewalls of the active ink ejecting member, the static ink ejecting member includes a sealing structure defined along an edge of the static ink ejecting member and spaced from the sidewall, and the sealing structure is shaped to facilitate a surface tension of a fluid in the variable-volume nozzle chamber to form a fluidic seal between the active and static ink ejecting members. | 07-21-2011 |
20110175970 | INKJET PRINTHEAD INTEGRATED CIRCUIT INCORPORATING FULCRUM ASSISTED INK EJECTION ACTUATOR - An inkjet printhead integrated circuit includes a substrate; a drive circuitry layer positioned on the substrate, the substrate and the drive circuitry layer defining a plurality of ink inlet channels; nozzle chamber walls positioned on the substrate, the nozzle chamber walls supporting roof structures to define nozzle chambers in fluid communication with the ink inlet channels; ink ejection ports defined in the roof structures; ink ejection members positioned in respective nozzle chambers and displaceable with respect to the roof structures to eject ink from the ink ejection ports; fulcrum formations fast with the substrate, each fulcrum formation having an effort formation on one side and a load formation on an opposite side; and thermal actuators outside of and associated with respective nozzle chambers and connected to the drive circuitry layer to move with respect to the substrate on receipt of electrical signals from the drive circuitry layer. Each ink ejection member is fast with a respective load formation. Each effort formation is fast with a respective thermal actuator, whereby reciprocal movement generated by the thermal actuators results in reciprocal movement of the ink ejection members and subsequent ink drop ejection from the ink ejection ports The fulcrum, effort and load formations are composite with a primary layer and a secondary layer. | 07-21-2011 |
20110181666 | FAST-DRYING, SOLVENT-BASED INKJET COMPOSITION AND A METHOD AND SYSTEM FOR PRINTING SUCH INK - Disclosed herein is a fast drying solvent-based inkjet ink composition for thermal inkjet printing. The ink composition includes at least 40 weight percent base solvent, a solvent-compatible colorant, not more than 25 weight percent propellant, a decap-controlling additive, from 0.5 weight % to 3.5 weight % of a binder resin and not more than 5 weight % water. The application also relates to the method and system for inkjet printing with the above-described ink. | 07-28-2011 |
20110187796 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - There is provided a liquid ejecting head including pressure generation chambers that communicate with nozzle openings from which liquid droplets are discharged, liquid flow paths that communicate with the pressure generation chambers, and pressure generation units that generate pressure for discharging liquid droplets in the pressure generation chambers. In the liquid ejecting head, foam members formed with closed cells are provided in the liquid flow paths. | 08-04-2011 |
20110187797 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head is provided. The liquid injecting head includes two reservoirs. The reservoirs include expansion chambers arranged in parallel in a direction in which pressure chambers are arranged. Each reservoir includes multiple expansion chambers formed so that an inner wall surface of one of the reservoirs protrudes toward the other reservoir. Each expansion chamber having a liquid introduction opening. Constriction portions are formed so that the inner wall surface of one reservoir protrudes at locations that oppose the expansion chambers of the other reservoir. The constriction portions narrow the flow channel width in the direction intersecting with the direction in which the pressure chambers are arranged. The liquid introduction openings provided in the expansion chambers disposed on either side of the constriction portion are formed in locations that are at different distances from the constriction portion and have different cross-sectional areas. | 08-04-2011 |
20110199435 | LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - An ink introducing port is provided on the upstream side of the center of a row of pressure chambers in the direction of gravity g, the pressure due to ink introduction is applied to a region where the influence by the head is small. | 08-18-2011 |
20110199436 | FAST-DRYING, SOLVENT-BASED INKJET INK COMPOSITION AND A METHOD AND SYSTEM FOR PRINTING SUCH INKS - The present disclosure relates to a fast drying solvent-based inkjet ink composition for thermal inkjet printing, the ink composition comprising at least 40 weight percent base solvent, a solvent-compatible colorant, not more than 25 weight percent propellant, a decap controlling additive, and not more than 5 weight percent water. The present disclosure also relates to the method and system for inkjet printing with the above-described ink. | 08-18-2011 |
20110211019 | Pressure independent droplet generation - The invention relates to an apparatus for ejecting droplets of a fluid material, comprising: a reservoir for storing the material, a channel connected with the reservoir, which is provided with at least one outflow opening from which, in use, flows a jet of the material breaking up into droplets, a pump for pressurizing the fluid material in the reservoir, so as to pass the material under pressure through the channel in the direction of the outflow opening, and a movable member provided in the reservoir, the member formed by a plurality of surfaces shaped to induce a pressure variation in the fluid material upstream of the outflow opening, for the purpose of obtaining the jet breaking up into droplets; the movable member mounted to have each opposed surface receiving identical hydrostatic pressure, to generate a net resulting zero force exerted on the movable member by the hydrostatic pressure. Accordingly, a simple mechanism is provided for providing multiple printing nozzles. | 09-01-2011 |
20110211020 | PRINTHEAD MICRO-ELECTROMECHANICAL NOZZLE ARRANGEMENT WITH MOTION-TRANSMITTING STRUCTURE - A micro-electromechanical nozzle arrangement for a printhead integrated circuit the nozzle arrangement includes a nozzle chamber bounded by a distal sidewall and a proximal sidewall, and capped by a roof defining an ink ejection port; a paddle located in the nozzle chamber below the ink ejection port; an actuator arm positioned outside of the nozzle chamber in the vicinity of the proximal sidewall, the actuator arm having a fixed end fixed to a substrate of the nozzle arrangement and a working end displaceable towards and away from the substrate; and a motion transmitting structure interconnecting the working end of the actuator arm and the paddle. The motion transmitting structure defines part of the proximal sidewall. | 09-01-2011 |
20110221824 | LIQUID JETTING HEAD, METHOD OF CHARGING LIQUID FOR LIQUID JETTING HEAD, LIQUID JETTING RECORDING DEVICE, AND METHOD OF USING SAME - To improve a space factor of a liquid jet head to improve flexibility in designing a liquid jet recording apparatus, and to improve the ability to collect excess liquid to prevent contamination with excess liquid and stabilize jetting of liquid after the liquid is filled, provided is a liquid jet head including a nozzle guard ( | 09-15-2011 |
20110228006 | IMAGE FORMING APPARATUS - An image forming apparatus that forms an image on a sheet by discharging a liquid droplet from a nozzle hole to the sheet, includes a voltage applying part that applies a voltage to an electrostatic attraction member to cause the electrostatic attraction member to attract the sheet, and acts as an electrically charging part that causes the liquid droplet to be electrically charged; and a checking part that detects an electrical charge or an induced electric current of the liquid droplet that has been electrically charged, for checking a state of the liquid droplet being discharged from the nozzle hole, wherein an electric potential applied by the voltage applying part is different between at a time when the liquid droplet is separating from the nozzle hole and at a time when the liquid droplet is flying. | 09-22-2011 |
20110228007 | INK PRINTHEAD HAVING CERAMIC NOZZLE PLATE DEFINING MOVABLE PORTIONS - An inkjet printhead includes a ceramic nozzle plate having a plurality of movable portions defined therein and a polymeric material covering the nozzle plate and the plurality of movable portions. | 09-22-2011 |
20110234701 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - Concave portions are provided at both side faces of the reinforcing plate in the juxtaposition direction of the actuators on a discharge face side in which the nozzle orifices are opened. Second exposed portions, in which corner portions that include the discharge face sides of convex portions formed by the concave portions and the side faces of the reinforcing plate are exposed, are provided at both side faces of the case in the juxtaposition direction of the actuators. | 09-29-2011 |
20110234702 | CAPACITIVE LOAD DRIVING DEVICE AND FLUID EJECTION DEVICE - A capacitive load driving device includes a drive waveform generator adapted to generate a drive waveform signal, a subtraction section adapted to output a differential signal between the drive waveform signal and two feedback signals, a modulator adapted to perform pulse modulation on the differential signal to obtain a modulated signal; a digital power amplifier adapted to power-amplify the modulated signal to obtain an amplified digital signal, a low pass filter including an inductor and a capacitor, and adapted to smooth the amplified digital signal to obtain a drive signal of a capacitive load, a first feedback circuit adapted to feedback the drive signal to the subtraction section as a first feedback signal, and a second feedback circuit adapted to set forward a phase of the drive signal and to feed back the drive signal to the subtraction section as a second feedback signal. | 09-29-2011 |
20110242224 | INKJET HEAD, INKJET RECORDING APPARATUS, AND METHOD OF PRODUCING INKJET HEAD - An inkjet head includes a plurality of nozzles through which ink is dischargeable out of the inkjet head, a pressure chamber plate that is made of metal, a plurality of pressure chambers that are groove portions formed in the pressure chamber plate for applying to the ink a pressure that is necessary in order to discharge the ink from the plurality of nozzles, an actuator that faces a first face of the pressure chamber plate and that includes a plurality of pressure generating portions, and a pressure chamber support member that supports the pressure chamber plate from a second face of the pressure chamber plate, the second face being an opposite face to the first face, and that is made from a material that has a Young's modulus that is greater than a Young's modulus of a material from which the pressure chamber plate is made. | 10-06-2011 |
20110249063 | LIQUID EJECTION HEAD - Provided is a continuous-type charge deflection liquid ejection head that is suitable for higher-density and multiple nozzles. This liquid ejection head includes: an orifice plate having a plurality of nozzles arranged in a two-dimensional manner; a charging electrode plate having a charging electrode to charge ink droplets from each of the plurality of nozzles; and first and second deflection electrode plates each having a deflection electrode to deflect each of the ink droplets charged by the charging electrode, in which each of the charging member, the first deflection member, and the second deflection member has through-holes that ink droplets pass through, and the charging member, the first deflection member, and the second deflection member are laminated in this order in an ejecting direction of the ink droplets. | 10-13-2011 |
20110279547 | LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD OF THE LIQUID DISCHARGE HEAD - The invention provides, between a discharge element substrate and a supply member, a support member containing a mixture that contains: a material having an affinity for a material forming the supply member; and another material. | 11-17-2011 |
20110279548 | LIQUID DISCHARGE HEAD AND ELECTRIC WIRING SUBSTRATE - A liquid discharge head includes a recording element substrate having a plurality of discharge ports for discharging liquid, and a plurality of recording elements for generating energy to discharge liquid, and an electric wiring substrate electrically connecting the recording element substrate and a driving circuit substrate having a circuit for driving the plurality of recording elements, the electric wiring substrate having a plurality of first electrical contact groups including a plurality of electrical contacts, for electrically connecting with the driving circuit substrate, provided along a disposed direction in which the plurality of discharge ports are disposed. The plurality of first electrical contact groups are detachably attached to a plurality of second electrical contact groups electrically connected with the driving circuit substrate, such that adjacent first electrical contact groups do not overlap each other in the disposed direction and in a direction orthogonal to the disposed direction. | 11-17-2011 |
20110279549 | LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A liquid discharge head includes a recording element substrate including a recording element that generates energy for discharging liquid from a discharge port, a base plate including a mounted surface on which the recording element substrate is mounted, an electric wiring substrate including a portion disposed on another surface of the base plate different from the mounted surface, adjacent to the mounted surface, and configured to be electrically connected to the recording element substrate, and an shield member having electric conductivity and configured to shield the portion. | 11-17-2011 |
20110279550 | LIQUID JET HEAD AND METHOD FOR MANUFACTURING LIQUID JET HEAD - A liquid discharge head includes a recording element substrate including an energy generating element, a wiring substrate including wiring, a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, and a sealing member, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion. | 11-17-2011 |
20110285792 | Liquid Droplet Spraying Apparatus and Method - The present invention relates to a liquid droplet spraying apparatus and method. The liquid droplet spraying apparatus of the present invention includes a chamber containing a fluid; a nozzle body having a nozzle for spraying the fluid in the chamber to one side of a material to be printed; an electrostatic spray module which is arranged in the vicinity of the chamber or the nozzle, and which forms an electrostatic field for the fluid contained in the chamber to provide a first spray force for spraying the fluid via the nozzle to form a liquid droplet; a physical spray module which is arranged in the chamber and opposite the nozzle, and which provides a second spray force for assisting the first spray force when the first spray force is generated; and a control unit for controlling the electrostatic spray module and the physical spray module such that the first spray force and the second spray force can be provided in a specific pattern. The liquid droplet spraying method of the present invention includes the steps of forming an electrostatic field for the fluid contained in the chamber using the electrostatic spray module arranged in the vicinity of the chamber or the nozzle to provide a first spray force for spraying the fluid via the nozzle to form a liquid droplet, and providing a second spray force for assisting the first spray force using the physical spray module arranged in the chamber and opposite the nozzle, thus spraying the fluid and forming a liquid droplet. | 11-24-2011 |
20110285793 | METHOD OF CONFIGURING PRINTHEAD TO EJECT INK DROPLETS OF PREDETERMINED VOLUME - A method of configuring a printhead to eject ink droplets of a predetermined volume. The method includes the steps of: (i) providing a printhead having a plurality of bend-actuated nozzles assemblies; (ii) varying a bulk hydrostatic pressure of ink supplied to the printhead so as to vary a volume of ejected ink droplets; (iii) determining an optimal bulk hydrostatic ink pressure corresponding to the predetermined volume; and (iv) configuring an ink supply system to supply ink to the printhead at the optimal bulk hydrostatic ink pressure. | 11-24-2011 |
20110292129 | PARTITIONED ARRAY EJECTION CHIPS FOR MICRO-FLUID APPLICATIONS - A micro-fluid ejection head has multiple ejection chips joined adjacently to create a lengthy array across a media to-be-imaged. The chips have fluid firing elements arranged adjacently along corresponding ones of fluid vias skewed variously or not to enable seamless stitching of printed images from the adjacent firing elements. The firing elements are energized to eject fluid and individual ones are spaced according to colors or fluid types. Overlapping firing elements serve redundancy efforts during imaging for reliable print quality. Variable chips sizes and shapes, including chevrons, are disclosed as are relationships between differently colored fluid vias. Skew angles range variously each with noted advantages. Bond pads and overlying encapsulation materials are still other features as are metallization lines for distributing power to ones of firing elements. Singulating chips from larger wafers provide still further embodiments as does increased usage of the wafer. | 12-01-2011 |
20110292130 | LIQUID EJECTING HEAD - A liquid ejecting head according to the present invention comprises a passage unit and an actuator unit. The passage unit includes: a plurality of liquid passages each of which contains a first opening for ejecting liquid and a pressure chamber connected to the first opening; and a surface having a plurality of second openings by which the pressure chambers are exposed. The actuator unit is fixed to the surface of the passage unit with a binder and covers the second openings. The actuator unit contains a plurality of actuators which face the second openings and apply ejection energy to the liquid inside the pressure chambers, respectively. The passage unit includes a plurality of plates which are stacked one another and have holes structuring the liquid passages. Of the plates, a first plate having the surface and at least another plate adjacent to the first plate have a dummy passage which is not in communication with the liquid passages. The dummy passage extends from one or more third openings formed within a fix area of the actuator unit on the surface of the first plate to one or more fourth openings formed on a surface of any of the plates, via a space formed in a plate other than the first plate. The dummy passage is opened to the atmosphere through the one or more fourth openings. | 12-01-2011 |
20110310181 | INKJET PEN/PRINTHEAD WITH SHIPPING FLUID - An inkjet pen includes a printhead firing chamber, a nozzle plate having at least one nozzle in fluid communication with the firing chamber, and a layer of shipping fluid within the firing chamber and covering the nozzle plate and the at least one nozzle. The shipping fluid has a density that is different than that of the ink that will be ejected from the firing chamber to form an image on media. | 12-22-2011 |
20110316934 | DROPLET EJECTION HEAD - In a droplet ejection head, each of droplet ejection units includes: a nozzle which ejects droplets of liquid, a pressure chamber which is filled with the liquid and connected to the nozzle, a drive element which applies pressure to the liquid inside the pressure chamber, and an individual supply channel and an individual recovery channel which are connected to the pressure chamber. The liquid is supplied to and recovered from the pressure chamber through the individual supply channel and the individual recovery channel. In each of the droplet ejection units, a diameter Dn (μm) of the nozzle, a flow channel resistance R1 (Ns/m | 12-29-2011 |
20120007921 | FLUID EJECTION DEVICE WITH CIRCULATION PUMP - A fluid ejection assembly includes a fluid slot, a plurality of drop generators, and a fluid circulation pump to circulate fluid from the fluid slot through each drop generator individually and back into the fluid slot. | 01-12-2012 |
20120007922 | LIQUID EJECTING HEAD UNIT, MANUFACTURING METHOD FOR A LIQUID EJECTING HEAD UNIT, AND LIQUID EJECTING APPARATUS - A sub-carriage includes a housing unit that houses at least part of each of multiple recording heads, and a head passage opening and an upper opening serving as opening portions through which the housing unit passes. A flow channel anchoring member for anchoring a flow channel member is attached to the sub-carriage so as to span across the aforementioned opening portions, and each of the recording heads is sequentially anchored to the sub-carriage to which the flow channel anchoring member has been attached. | 01-12-2012 |
20120019600 | LAMINATE MANIFOLDS FOR MESOSCALE FLUIDIC SYSTEMS - Laminate manifolds, and their manufacture. The laminate manifolds ( | 01-26-2012 |
20120026248 | Inkjet head assembly and method for manufacturing the same - There are provided an inkjet head assembly and a method for manufacturing the same. The inkjet head assembly includes: an inkjet head plate having an ink flow passage formed therein and having an actuator formed thereon, the actuator providing driving force for discharging ink; a flexible printed circuit board (FPCB) applying voltage to the actuator; and an intermediate substrate provided so as to electrically connect the actuator to the flexible printed circuit board and having a second bonding portion bonded to the flexible printed circuit board formed inwardly of a first bonding portion, bonded to the actuator in a width direction of the inkjet head plate. | 02-02-2012 |
20120033016 | METHOD TO REFRESH THE INK IN NOZZLES OF AN INKJET PRINT HEAD IN AN INKJET PRINTING APPARATUS - In a method to regenerate during operation ink in nozzles of at least one inkjet print head operating according to drop on demand in an inkjet print apparatus, nozzles of the print head that generate print dots on a printing substrate are activated such that the nozzles output first ink droplets of a predetermined volume in a direction towards the printing substrate. Nozzles that are not being currently used to generate print dots on the printing substrate are activated such that they output at least one second ink droplet of a smaller volume in comparison to the first ink droplets volume. During at least the outputting of the second ink droplet, a suction flow is generated between the inkjet print head and the printing substrate of such strength that the second ink droplet is deflected so it does not arrive at the printing substrate. | 02-09-2012 |
20120033017 | LIQUID DISCHARGE RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid discharge recording head includes: a recording element substrate, an electric wiring board, and a supporting plate that supports the recording element substrate and the electric wiring board, wherein a gap is formed between the recording element substrate and the electric wiring board; the liquid discharge recording head further including: a connecting member that electrically connects, across the gap, an electrode provided in the recording element substrate and an electrode terminal provided in the electric wiring board; and a first resin agent that is filled in the gap, a second resin agent that seals the electrode, the electrode terminal, and the connecting member, and a third resin agent that is provided between the first resin agent and the supporting plate and has a lower modulus of elasticity than the first resin agent and the second resin agent. | 02-09-2012 |
20120038712 | METHOD FOR PRODUCING ELECTROMECHANICAL TRANSDUCER, ELECTROMECHANICAL TRANSDUCER PRODUCED BY THE METHOD, LIQUID-DROPLET JETTING HEAD, AND LIQUID-DROPLET JETTING APPARATUS - A method of producing an electromechanical transducer includes a first step of partially modifying a surface of a first electrode; a second step of applying a sol-gel liquid including a metal composite oxide to a predetermined area of the partially-modified surface of the first electrode; a third step of performing drying, thermal decomposition, and crystallization on the applied sol-gel liquid to form an electromechanical transduction film; a fourth step of repeating the first, second, and third steps to obtain the electromechanical transduction film with a desired thickness; and a fifth step of forming a second electrode on the electromechanical transduction film. | 02-16-2012 |
20120044299 | Droplet Actuator Devices and Methods - A microfluidic device having a substrate with an electrically conductive element made using a conductive ink layer underlying a hydrophobic layer. | 02-23-2012 |
20120056940 | LIQUID EJECTION HEAD AND INK JET PRINTING APPARATUS - A power supply-heater wiring and a heater-driving circuit wiring for a heater located on the right side of a supply port can be laid out utilizing a beam portion configured to separate supply ports from each other. Furthermore, a plurality of supply ports are provided to supply ink to channels and pressure chambers and separated from one another by beam portions. Thus, an ejection structure such as an ejection opening can be located on both sides of each of the supply ports. Even if the ejection structures are relatively densely arranged, the heaters and the like can have necessary and sufficient sizes and locations without being restricted by the arrangement. A wiring connecting the heater to the power supply wiring or driving circuit is also laid out on the beam portion serving as a partition wall for the supply ports. | 03-08-2012 |
20120056941 | PRINTHEAD HAVING FLUID SUPPLY THROUGH SEALING FILM - A printhead is provided having a printhead integrated circuit having ejection nozzles and fluid channels for supplying fluid to the nozzles, a support structure supporting the integrated circuit, the support structure having conduits for supplying fluid to the channels, and a sealing film fixing the integrated circuit to the support structure. The sealing film has apertures providing sealed fluid communication between the conduits and the channels. The channels are divided into isolated channel sections by walls. Each aperture of the sealing film is positioned at one of the walls so as to provide fluid communication to both of the channel sections either side of the respective wall. | 03-08-2012 |
20120062655 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head that includes a fluid channel formation substrate and pressure generation units. The fluid channel formation substrate is made of a silicon single crystal substrate having a crystal face orientation of. The fluid channel formation substrate has a plurality of separate flow channels that include at least pressure generation chambers demarcated by partition walls, each of the pressure generation chambers being in communication with a nozzle opening that ejects liquid drops. The fluid channel formation substrate further has a communication portion that is in communication with each of the separate flow channels. The pressure generation units are provided so as to correspond to the pressure generation chambers and generate a pressure change in the pressure generation chambers so as to cause ejection of liquid drops. | 03-15-2012 |
20120069094 | LIQUID EJECTION HEAD AND MANUFACTURING METHOD THEREFOR - Provided is a liquid ejection head including a substrate including a liquid supply port and an energy generating element, in which the liquid supply port has at least one groove shape formed in a wall surface thereof, the at least one groove shape extending from a rear surface, which is a surface opposite to a front surface on which the energy generating element is formed, toward the front surface. | 03-22-2012 |
20120069095 | INKJET HEAD AND IMAGE FORMING APPARATUS HAVING THE SAME - An inkjet head includes: an ink tank plate that includes a nozzle to discharge a liquid; a drive circuit member connected to an electromechanical transducer to apply a voltage to the electromechanical transducer to generate a pressure in an ink tank to discharge a liquid from the nozzle; a liquid supply plate stacked approximately in parallel with the drive circuit member on the ink tank plate; and a sealing material that hermetically seals an electrical connection between the drive circuit member and the wiring member. The liquid supply plate is provided with a receptacle having a hole portion or a concave portion and a mount area surrounded by the receptacle. The drive circuit member is received in the mount area. The sealing material is filled inside the mount area after the liquid supply plate is bonded to the ink tank plate. | 03-22-2012 |
20120069096 | NOZZLE ARRANGEMENT FOR PRINTHEAD - A nozzle arrangement for a printhead is provided which has a chamber defined on a substrate configured to hold fluid, an ejection port defined in the chamber, and an actuator for moving the ejection port relative to the substrate to eject the held fluid therethrough. | 03-22-2012 |
20120081467 | INKJET PRINTHEAD HAVING COMMON CONDUCTIVE TRACK ON NOZZLE PLATE - An inkjet printhead includes: a substrate having a drive circuitry layer; a plurality of nozzle assemblies disposed on an upper surface of the substrate and arranged in one or more nozzle rows extending longitudinally along the printhead; a nozzle plate extending across the printhead; and a conductive track disposed on the nozzle plate which extends longitudinally along the printhead and parallel with the nozzle rows. The conductive track is connected to a common reference plane in the drive circuitry layer via a plurality of conductor posts extending between the drive circuitry layer and the conductive track. | 04-05-2012 |
20120081468 | LIQUID 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 20 mPa·s, wherein the liquid ejecting head includes: nozzles which eject the liquid; | 04-05-2012 |
20120086755 | LIQUID EJECTING APPARATUS AND CONTROL METHOD THEREFOR - A first activation signal has ejection activation pulses that eject ink from nozzles; a second activation signal has a micro-oscillating activation pulse (non-ejection activation pulse) for inducing pressure fluctuation on ink within the pressure chamber of a level such that liquid is not ejected from the nozzle; a minimum electric potential of the micro-oscillating activation pulse is no greater than a maximum electric potential of the ejection activation pulse; and the ejection activation pulse is supplied to a piezoelectric element corresponding to an ejecting nozzle ejecting ink in a unit cycle, and the micro-oscillating activation pulse is at least supplied to a piezoelectric element corresponding to a non-ejecting nozzle located adjacent to the ejecting nozzle. | 04-12-2012 |
20120092420 | FLUID EJECTION NOZZLE HAVING STACKED CAPACITIVE EJECTOR - A fluid ejection nozzle arrangement is provided having drive circuitry deposited on a substrate, subsequent etchant layers deposited on the drive circuitry to define a nozzle chamber with walls and a roof structure defining a fluid ejection port, and a stacked capacitive actuator arranged in the chamber. The actuator has alternate electrode plates sandwiched between a compressible polymer. Activation of the stacked actuator draws the electrode plates together to compress the polymer storing energy therein, with subsequent de-activation releasing the energy to eject fluid within the chamber from the ejection port. | 04-19-2012 |
20120098890 | DISPENSING LIQUID USING DISPENSER INCLUDING SECONDARY MANIFOLD - A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate is provided. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate and is in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate and is in fluid communication with the liquid return channel. A liquid manifold is provided that includes a liquid supply duct and a liquid return duct. The liquid supply duct is in fluid communication with each liquid supply passage of each liquid dispensing element. The liquid return duct is in fluid communication with each liquid return passage of each liquid dispensing element. A liquid flows from the liquid supply duct of the liquid manifold through each liquid dispensing element to the liquid return duct of the liquid manifold. A liquid drop is ejected from the outlet opening of the liquid dispensing channel of one of the liquid dispensing elements by selectively actuating the diverter member of the liquid dispensing element to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel of the liquid dispensing element. | 04-26-2012 |
20120098891 | DISPENSING LIQUID USING CURVED VENT 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 wall. The wall includes a surface. A portion of the wall defines an outlet opening. Another portion of the wall defines a drain located in the wall downstream from the outlet opening. The drain includes a radius of curvature as viewed from a direction perpendicular to the wall. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. 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 |
20120098892 | DISPENSING LIQUID USING SLOPED OUTLET OPENING 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 wall. The wall includes a surface. A portion of the wall defines an outlet opening that includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is sloped relative to the surface of the wall of the liquid dispensing channel. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. 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 |
20120098893 | DISPENSER INCLUDING OVERLAPPING OUTLET AND RETURN PORT - 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 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 extends through the second wall and is in fluid communication with the liquid supply channel. A liquid return passage is positioned 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 supply provides liquid that flows from the liquid supply passage through the liquid supply channel, through the liquid dispensing channel, and through the liquid return channel to the liquid return passage. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098894 | DISPENSING LIQUID USING CURVED OUTLET OPENING DISPENSER - A liquid dispenser includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening that includes an upstream edge relative to a direction of liquid flow through the liquid dispensing channel. The upstream edge includes a radius of curvature when viewed from a direction perpendicular to the surface of the wall. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. 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 |
20120098895 | DISPENSER INCLUDING ARRAY OF LIQUID DISPENSING ELEMENTS - A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate in fluid communication with the liquid return channel. A liquid supply provides liquid that flows from each liquid supply channel through each liquid dispensing element to each liquid return channel. Each diverter member is selectively activated to divert a portion of the liquid flowing through the associated liquid dispensing channel through the outlet opening of the associated liquid dispensing channel to dispense a drop of the liquid. | 04-26-2012 |
20120105548 | AQUEOUS INKJET PRINTING FLUID COMPOSITIONS - An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex comprising a divalent or a trivalent metal M and one or more organic ligands of Formula (I): | 05-03-2012 |
20120105549 | AQUEOUS INKJET PRINTING FLUID COMPOSITIONS - An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex of Formula (I): | 05-03-2012 |
20120105550 | AQUEOUS INKJET PRINTING FLUID COMPOSITIONS - An aqueous inkjet printing fluid composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous printing fluid composition, comprising in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous printing fluid composition a soluble metal ligand complex of Formula (I): | 05-03-2012 |
20120113192 | LIQUID EJECTION HEAD AND FLEXIBLE WIRING SUBSTRATE USED IN LIQUID EJECTION HEAD - A flexible wiring substrate that is used in a liquid ejection head having an element substrate provided with energy generating elements for generating energy for ejecting liquid includes: a bending portion; a base member including resin; electrical wiring lines formed on the base member and electrically connected to the element substrate, the electrical wiring lines extending over a ridge of the bending portion; and a metal layer that is arranged on an area of the base member in which no electrical wiring lines are provided and that is not electrically connected to the element substrate, the metal layer extending over the ridge. | 05-10-2012 |
20120133709 | MANUFACTURING METHOD OF INKJET HEAD AND INKJET HEAD - According to one embodiment, when an electrode protection film of an inorganic material, which is apt to form a pin hole by influence of roughness of a ground, is used, an electrode as a smoothed electrode is formed on the ground of the electrode protection film by a plating method, or a film is formed as a smoothed layer (film) by an inorganic coating material such as SIRAGUSITAL (trade name: New Technology Creating Institute Co., Ltd.), such that the thickness of the electrode protection film is 1.0 μm or more, and the average surface roughness of the ground of the electrode protection film is 0.6 μm or less. | 05-31-2012 |
20120139999 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - The dimensions/shape of ink flow channels in a recording head are designed so that when the inertance of nozzles is represented by Mn, the inertance of the ink supply channels is represented by Ms, the combined resistance obtained by combining the flow channel resistance in the nozzles, the flow channel resistance in pressure chambers, and the flow channel resistance in the supply channels is represented by R, and a unique vibration cycle of the pressure fluctuation arising in the ink within the pressure chambers is represented by Tc, the following Equation (A) holds true. | 06-07-2012 |
20120162318 | LIQUID DISCHARGE HEAD - A liquid discharge head includes first and second element substrates including: a discharge port array; energy generating elements; and electric contacts electrically connected to the energy generating elements and including first and second electric contacts disposed linearly along one end and the other end. The first and second element substrates are configured such that a distance between the gravity center of the first electric contact and that of a discharge port provided at an end of the discharge port array on the first electric contacts side is different from a distance between the gravity center of the second electric contact and that of a discharge port provided at an end of the discharge port array on the second electric contacts side. The first electric contacts of the first element substrate and the second electric contacts of the second element substrates are disposed linearly, and vice versa. | 06-28-2012 |
20120182352 | INK-JET HEAD - Disclosed is an ink-jet head that can suppress occurrence of the crosstalk and facilitate a smooth ink circulation in pressure chambers. The ink jet head includes two or more pressure chambers | 07-19-2012 |
20120182353 | METHOD, HEAD, AND APPARATUS FOR EJECTING LIQUID - A liquid ejecting method includes ejecting a liquid through a liquid ejecting head. Viscosity of the liquid falls within a range from 6 mPa·s to 15 mPa·s. The liquid ejecting head includes a nozzle that ejects the liquid, a pressure compartment that causes a change in the pressure of the liquid to eject the liquid through the nozzle, and a supply unit that communicates with the pressure compartment and supplies the liquid to the pressure compartment. A channel flow resistance of the supply unit ranges from equal to or higher than a channel flow resistance of the pressure compartment to equal to or lower than twice the channel flow resistance of the pressure compartment. A channel length of the pressure compartment ranges from equal to or longer than a channel length of the supply unit to equal to or shorter than twice the channel length of the supply unit. | 07-19-2012 |
20120182354 | LIQUID-EJECTING HEAD AND LIQUID-EJECTING APPARATUS - A liquid-ejecting head includes a channel which is in communication with a nozzle opening and which includes a pressure-generating chamber, a circulation channel that serves to circulate a liquid in the channel, and a pressure generator that serves to generate pressure change. The circulation channel has a narrow portion including a first wall and a second wall, the first wall tilting with respect to a forward direction of a liquid flows and serving to gradually decrease the cross-sectional area, the second wall tilting with respect to the flow direction and serving to gradually increase the cross-sectional area. The tilt angle of the first wall with respect to the inner surface of the circulation channel is larger than the tilt angle of the second wall with respect to the inner surface of the circulation channel at the downstream side. | 07-19-2012 |
20120188312 | INKJET RECORDING INK, INK CARTRIDGE, INKJET RECORDING DEVICE, INKJET RECORDING METHOD, AND INK RECORDED MATTER - To provide an inkjet recording ink, which contains water, a water-soluble organic solvent, a colorant, and a surfactant, wherein the colorant contains a surfactant-dispersible pigment (A) dispersed by the surfactant, and a resin-coated pigment (B), and wherein the surfactant is a surfactant selected from the group consisting of anionic surfactants represented by the following formula (1), and having HLB value of 12 or higher: | 07-26-2012 |
20120200638 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR MANUFACTURING LIQUID EJECTING HEAD - A liquid ejecting head includes a channel unit having a plurality of pressure chambers respectively communicating with a plurality of nozzles opened to a nozzle formation surface, a plurality of reservoirs for supplying liquid to the plurality of the pressure chambers, and a plurality of compliance units formed by partitioning at least a part of the surface of each reservoir opposite to the nozzle formation surface by a film member; and a head case joined to a surface of the channel unit. A concave chamber formed by depressing a part of a surface joined to the channel unit in a side opposite to the reservoir and an atmosphere opening passage whose one end communicates with the concave chamber and the other end is opened to the atmosphere are formed at the head case. The concave chamber is formed in series over the compliance units. | 08-09-2012 |
20120200639 | COATING DEVICE AND INKJET RECORDING DEVICE - Provided are a coating device and an inkjet recording device capable of reliably removing liquid attached to a drum. A process liquid is coated by pressing a coating roller against a surface of paper to be transported by a process liquid coating drum. The process liquid attached to an outer peripheral surface of the process liquid coating drum is removed by a blade coming into contact with the outer peripheral surface of the process liquid coating drum. The blade is separated from the process liquid coating drum by an installation portion of a gripper. The process liquid remaining in the process liquid coating drum during separation is removed by air that is ejected from air nozzles. | 08-09-2012 |
20120218355 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus including: a plurality of pressure chambers communicating with a plurality of nozzles respectively; and a plurality of liquid ejecting heads having a common liquid chamber configured to supply liquid common to the plurality of pressure chambers, wherein each of the liquid ejecting heads includes a liquid supply channel communicating with the common liquid chamber and supplying liquid from the liquid storage tank toward the common liquid chamber by the liquid feeding unit and a liquid discharge channel communicating with the common liquid chamber and discharging the liquid from the communicating chamber toward the liquid storage tank by the liquid feeding unit, and the directions of flows of the liquid in the common liquid chamber flowing from the liquid supply channels through the common liquid chamber toward the liquid discharge channels are opposite from each other between the adjacent liquid ejecting heads. | 08-30-2012 |
20120249683 | DROPLET EJECTING DEVICE AND PRINTING DEVICE - A droplet ejecting device includes an ejection head, a moving body, a guide part, an attachment part, a fixed part and a liquid reservoir. The ejection head is configured and arranged to eject liquid droplets onto a substrate. The moving body supports the ejection head, and is configured and arranged to move integrally with the ejection head with respect to the substrate. The guide part is configured and arranged to guide a relative movement of the moving body. The attachment part is attached to the guide part and supporting the moving body, and configured and arranged to move integrally with the moving body. The fixed part is fixed to the attachment part separately from the moving body. The liquid reservoir is provided to the fixed part, and configured and arranged to store the liquid supplied to the ejection head. | 10-04-2012 |
20120256989 | LIQUID EJECTING HEAD, LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a liquid channel having a pressure generating chamber communicated with a nozzle opening that ejects liquid, and a first liquid chamber installed at one end of the pressure generating chamber to communicate a plurality of pressure generating chambers; a pressure generating unit for changing pressure in the pressure generating chamber so that liquid is discharged from the nozzle opening; a heating unit for heating liquid in the liquid channel at an upstream of the pressure generating chamber; a second liquid chamber installed at the other end of the pressure generating chamber; and a circulating channel formed among a pressure generating chamber group having at least one pressure generating chamber to connect the first liquid chamber and the second liquid chamber. | 10-11-2012 |
20120268525 | CONTINUOUS EJECTION SYSTEM INCLUDING COMPLIANT MEMBRANE TRANSDUCER - A continuous liquid ejection system includes a substrate and an orifice plate affixed to the substrate. Portions of the substrate define a liquid chamber. The orifice plate includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the liquid chamber and is free to move relative to the liquid chamber. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member and a second portion of the compliant membrane is anchored to the substrate. The compliant membrane includes an orifice. A liquid supply provides a liquid to the liquid chamber under a pressure sufficient to eject a continuous jet of the liquid through the orifice located in the compliant membrane of the orifice plate. The MEMS transducing member is selectively actuated to cause a portion of the compliant membrane to be displaced relative to the liquid chamber to cause a drop of liquid to break off from the liquid jet. | 10-25-2012 |
20120268526 | FLUID EJECTOR INCLUDING MEMS COMPOSITE TRANSDUCER - A fluid ejector includes a substrate, a MEMS transducing member, a compliant membrane, walls, and a nozzle. First portions of the substrate define an outer boundary of a cavity. Second portions of the substrate define a fluidic feed. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. The compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member. A second portion of the compliant membrane is anchored to the substrate. Partitioning walls define a chamber that is fluidically connected to the fluidic feed. At least the second portion of the MEMS transducing member is enclosed within the chamber. The nozzle is disposed proximate to the second portion of the MEMS transducing member and distal to the fluidic feed. | 10-25-2012 |
20120268527 | FLOW-THROUGH EJECTION SYSTEM INCLUDING COMPLIANT MEMBRANE TRANSDUCER - A liquid dispenser includes a substrate. A first portion of the substrate defines a liquid dispensing channel including an outlet opening. A second portion of the substrate defines an outer boundary of a cavity. Other portions of the substrate define a liquid supply channel and a liquid return channel. A liquid supply provides a continuous flow of liquid from the liquid supply through the liquid supply channel through the liquid dispensing channel through the liquid return channel and back to the liquid supply. A diverter member is selectively actuatable to divert a portion of the liquid flowing through the liquid dispensing channel through outlet opening of the liquid dispensing channel. The diverter member includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member. A second portion of the compliant membrane is anchored to the substrate such that the compliant membrane forms a portion of a wall of the liquid dispensing channel. The wall is positioned opposite the outlet opening. | 10-25-2012 |
20120268528 | FLOW-THROUGH LIQUID EJECTION USING COMPLIANT MEMBRANE TRANSDUCER - A method of ejecting liquid includes providing a liquid dispenser including a substrate and a diverter member. A first portion of the substrate defines a liquid dispensing channel including an outlet opening and a second portion of the substrate defines an outer boundary of a cavity. Other portions of the substrate define a liquid supply channel and a liquid return channel. The diverter member includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member. A second portion of the compliant membrane is anchored to the substrate such that the compliant membrane forms a portion of a wall of the liquid dispensing channel. The wall is positioned opposite the outlet opening. A continuous flow of liquid is provided from a liquid supply through the liquid supply channel through the liquid dispensing channel through the liquid return channel and back to the liquid supply. The diverter member is selectively actuated to divert a portion of the liquid flowing through the liquid dispensing channel through outlet opening of the liquid dispensing channel when drop ejection is desired. | 10-25-2012 |
20120268529 | CONTINUOUS LIQUID EJECTION USING COMPLIANT MEMBRANE TRANSDUCER - A method of continuously ejecting liquid includes providing a liquid ejection system that includes a substrate and an orifice plate affixed to the substrate. Portions of the substrate define a liquid chamber. The orifice plate includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the liquid chamber. The second portion of the MEMS transducing member is free to move relative to the liquid chamber. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member and a second portion of the compliant membrane is anchored to the substrate. The compliant membrane includes an orifice. Liquid is provided under a pressure sufficient to eject a continuous jet of the liquid through the orifice located in the compliant membrane of the orifice plate by a liquid supply. A drop of liquid is caused to break off from the liquid jet by selectively actuating the MEMS transducing member which causes a portion of the compliant membrane to be displaced relative to the liquid chamber. | 10-25-2012 |
20120268530 | FLOW-THROUGH EJECTION SYSTEM INCLUDING COMPLIANT MEMBRANE TRANSDUCER - A liquid dispenser includes a substrate. A first portion of the substrate defines a liquid dispensing channel including an outlet opening. A second portion of the substrate defines a liquid supply channel and a liquid return channel. A liquid supply provides a continuous flow of liquid from the liquid supply through the liquid supply channel through the liquid dispensing channel through the liquid return channel and back to the liquid supply. A diverter member, positioned on a wall of the liquid dispensing channel that includes the outlet opening, is selectively actuatable to divert a portion of the liquid flowing through the liquid dispensing channel through outlet opening of the liquid dispensing channel. The diverter member includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the wall of the liquid dispensing channel that includes the outlet opening. A second portion of the MEMS transducing member extends into a portion of the liquid dispensing channel that is adjacent to the outlet opening and is free to move relative to the outlet opening. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane separates the MEMS transducing member from the continuous flow of liquid through the liquid dispensing channel. A second portion of the compliant membrane is anchored to the wall of the liquid dispensing channel that includes the outlet opening. | 10-25-2012 |
20120268531 | FLOW-THROUGH LIQUID EJECTION USING COMPLIANT MEMBRANE TRANSDUCER - A method of ejecting a liquid includes providing a liquid dispenser including a substrate. A first portion of the substrate defines a liquid dispensing channel including an outlet opening. A second portion of the substrate defines a liquid supply channel and a liquid return channel. A diverter member is positioned on a wall of the liquid dispensing channel that includes the outlet opening. The diverter member includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the wall of the liquid dispensing channel that includes the outlet opening. A second portion of the MEMS transducing member extends into a portion of the liquid dispensing channel that is adjacent to the outlet opening and is free to move relative to the outlet opening. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane separates the MEMS transducing member from the liquid dispensing channel. A second portion of the compliant membrane is anchored to the wall of the liquid dispensing channel that includes the outlet opening. A continuous flow of liquid is provided from a liquid supply through the liquid supply channel through the liquid dispensing channel through the liquid return channel and back to the liquid supply. The diverter member is selectively actuated to divert a portion of the liquid flowing through the liquid dispensing channel through outlet opening of the liquid dispensing channel. | 10-25-2012 |
20120287204 | INK EJECTION NOZZLE EMPLOYING VOLUME VARYING INK EJECTING MEANS - A nozzle arrangement for ejecting ink includes a substrate defining an ink supply passage; a first endless wall extending from the substrate and bounding the ink supply passage; an elongate actuator anchored at a fixed end to the substrate, the actuator configured to bend towards and away from the substrate; and a cover terminating a free end of the actuator, the cover defining a second endless wall suspended from the cover within the confines of the first endless wall to define an ink chamber with the first endless wall. The bending of the actuator varies a volume of the ink chamber and effects ejection of ink through an ink ejection port. The first and second endless walls define a gap therebetween. The width of the gap is conducive to the formation of a fluidic seal effected via surface tension of the ink. | 11-15-2012 |
20120293586 | ENHANCING SUPEROLEOPHOBICITY AND REDUCING ADHESION THROUGH MULTI-SCALE ROUGHNESS BY ALD/CVD TECHNIQUE IN INKJET APPLICATION - Various embodiments provide a device having a multi-scale superoleophobic surface and methods for forming and using the device, wherein a particulate composite layer including metal-containing particulates is formed on a textured micron-/sub-micron surface of a semiconductor layer to provide device with multi-scale rough surface. | 11-22-2012 |
20120306971 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a liquid ejecting head having a nozzle formation surface in which a nozzle is formed that causes a liquid to be ejected through the nozzle toward a landing target by driving a pressure generation unit; a support unit that supports the landing target that is disposed at a landing-capable distance from the nozzle formation surface of the liquid ejecting head; and a liquid droplet collection unit disposed in a location that is distanced from an ejection region. Here, the liquid droplet collection unit has a landing surface on which the liquid lands when carrying out flushing operations; and the distance between the landing surface and the nozzle formation surface of the liquid ejecting head is set to be smaller than the landing-capable distance, and the nozzle formation surface and the landing surface are set to the same voltage at least during the flushing operations. | 12-06-2012 |
20130010032 | IMAGE FORMING DEVICE - An image forming device has: a supporting/conveying member that supports a sheet-shaped recording medium from a bottom surface of the recording medium, and conveys the recording medium while rotating; an abutment member that abuts a leading end portion of the recording medium and stops the leading end portion of the recording medium; and a pushing roller that is provided at an upstream side in a conveying direction of the recording medium so as to face the supporting/conveying member, and pushes the leading end portion of the recording medium against the abutment member by rotating while contacting the recording medium and sliding on the recording medium. | 01-10-2013 |
20130033546 | ACHIEVING ACCURATE PAGE YIELDS - A system for achieving accurate page yields includes a first droplet generator comprising a nozzle aperture with a first cross sectional area and a first passageway to an ink reservoir. A second droplet generator includes a nozzle aperture with a second cross sectional area that is larger than the first cross sectional area and a second passageway to the ink reservoir with minimum cross sectional area that is smaller than the second cross sectional area. A method for achieving accurate page yields is also provided. | 02-07-2013 |
20130033547 | LIQUID EJECTION HEAD - Provided is a liquid ejection head, including a substrate including an energy-generating element for generating energy to be used for ejecting a liquid, and a supply port that is a through-hole for supplying the liquid to the energy-generating element; and an orifice plate including an ejection orifice for ejecting the liquid. A plurality of the energy-generating elements are arranged in a first direction. The supply port is formed between the plurality of the energy-generating elements in the first direction, and the supply port is formed so as to be adjacent to the energy-generating element in a second direction orthogonal to the first direction. | 02-07-2013 |
20130057618 | METHOD OF MANUFACTURING A LIQUID EJECTION HEAD AND LIQUID EJECTION HEAD - Provided is a method of manufacturing a liquid ejection head, including: forming a covering resin layer including a photocationic polymerization initiator and a cationically polymerizable resin on a substrate having provided thereon an energy generating element for generating energy for ejecting liquid and a solid layer which is formed of a positive resist and serves as a pattern for a liquid flow path which communicates with a liquid ejection orifice for ejecting the liquid; exposing the covering resin layer to development to form the liquid ejection orifice; and removing the solid layer to form the liquid flow path, in which the covering resin layer includes, as a cationic polymerization inhibitor, an amine compound having a perfluoroalkyl group. Also provided is a liquid ejection head obtained by the method. | 03-07-2013 |
20130076835 | LIQUID DISCHARGE HEAD - A liquid discharge head includes a plurality of discharge ports configured to discharge liquid, a supply port configured to retain the liquid to be discharged from the plurality of discharge ports, a first pressure chamber including a first energy generation element to discharge a predetermined amount of liquid droplets, a second pressure chamber including a second energy generation element to discharge an amount of liquid droplets greater than the predetermined amount, a first flow path through which the supply port and the first pressure chamber communicate with each other, and a second flow path through which the first pressure chamber and the second pressure chamber communicate with each other. | 03-28-2013 |
20130076836 | INK JET HEAD AND INK JET RECORDING APPARATUS - An ink jet head is provided which includes: nozzles forming a predetermined array; liquid chambers respectively provided for the nozzles; pressure generation elements respectively provided for the liquid chambers which respectively discharge liquid in the liquid chambers; individual supply flow paths which respectively supply the liquid to the liquid chambers; a common supply flow path that is connected to each individual supply flow path and supplies the liquid into each individual supply flow path; and a liquid supply unit that circulates the liquid of the common supply flow path so as to make the liquid flow in one direction in the common supply flow path. The common supply flow path has a shape in which a cross-sectional area is increased and decreased at a predetermined interval. Each individual supply flow path is provided at a position where the cross-sectional area of the common supply flow path is increased. | 03-28-2013 |
20130088546 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head that includes a fluid channel formation substrate and pressure generation units. The fluid channel formation substrate is made of a silicon single crystal substrate having a crystal face orientation of. The fluid channel formation substrate has a plurality of separate flow channels that include at least pressure generation chambers demarcated by partition walls, each of the pressure generation chambers being in communication with a nozzle opening that ejects liquid drops. The fluid channel formation substrate further has a communication portion that is in communication with each of the separate flow channels. The pressure generation units are provided so as to correspond to the pressure generation chambers and generate a pressure change in the pressure generation chambers so as to cause ejection of liquid drops. | 04-11-2013 |
20130106957 | PRINT MEDIA BOTTOM PORTION PRINTING | 05-02-2013 |
20130135395 | SILICON SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND INKJET PRINT HEAD - There is provided a silicon substrate including: a first connection part connected to a manifold and having a first width of a first size; a second connection part connected to a pressure chamber and having a second width of a second size; and a restrictor part connecting the first connection part to the second connection part and having a third width of a third size smaller than the first size or the second size, wherein a boundary part connecting the restrictor part to the first connection part or the restrictor part to the second connection part is formed to be curved. | 05-30-2013 |
20130135396 | INKJET PRINT HEAD - There is provided an inkjet print head, including: a first substrate in which a first restrictor and a pressure chamber are formed; and a second substrate in which a manifold, a second restrictor, and a nozzle are formed, wherein the first restrictor is connected to the manifold and the second restrictor, and the second restrictor is connected to the first restrictor and the pressure chamber. | 05-30-2013 |
20130155152 | FLUID EJECTION DEVICE INCLUDING RECIRCULATION SYSTEM - A fluid ejection device including, at least, one recirculation system is disclosed. Such recirculation system contains, at least, one drop generator, recirculation channels that include an inlet channel, an outlet channel and a connection channel and a fluid feedhole that communicates with the drop generator via the inlet channel and the outlet channel of the recirculation channel. Also disclosed are inkjet pen containing it and method of using it. | 06-20-2013 |
20130155153 | Printhead Module - A printhead including a body; an actuator attached to the body, and an enclosed space between the actuator and the body forms a chamber; an opening defined by the body for releasing pressure in the chamber; and a seal attached to the opening to seal the chamber while permitting pressure to be released. | 06-20-2013 |
20130162722 | INKJET PRINTING METHOD AND SYSTEM - Pigment-based ink composition, and inkjet printing systems and methods employing such ink composition. The ink contains an aqueous polyurethane additive including polyurethane polymer chains including at least first segments having a polysiloxane group of Mw greater than about 10,000 pendant to the polyurethane polymer chain backbone, wherein (i) the polyurethane additive further comprises polyurethane polymer chains including second segments having a polysiloxane group of Mw less than about 6,000 either pendant to the polyurethane polymer backbone or a part of the polyurethane polymer backbone or (ii) the composition further comprises a polysiloxane polymer additive of Mw of less than about 6,000 which is not pendant to a polyurethane polymer backbone or a part of a polyurethane polymer backbone. The polyurethane additive has a Mw of at least 10,000 and a sufficient number of acid groups to provide an acid number greater than 20. | 06-27-2013 |
20130162723 | INK JET PRINTING SYSTEMS AND METHODS WITH PRE-FILL AND DIMPLE DESIGN - Systems and methods of ejecting ink drops from an inkjet printer are disclosed. The systems and methods can include a printhead with one or more actuators with associated nozzles and membranes. A voltage waveform can be applied to the actuators to fill the actuators with a volume of ink and eject the ink through the nozzles as ink drops. The voltage waveform can have associated pre-fill voltage to fill the actuator with ink and a firing voltage to eject the ink. The actuator membranes can have multi-height dimples to protect the membranes from contacting electrodes and reduce the electric field. | 06-27-2013 |
20130194350 | THIN FILM FORMING APPARATUS, THIN FILM FORMING METHOD, ELECTRO-MECHANICAL TRANSDUCER ELEMENT, LIQUID EJECTING HEAD, AND INKJET RECORDING APPARATUS - A thin film forming apparatus which automatically forms, on an electrode layer formed on a substrate, a functional thin film which is crystallized from a precursor layer is disclosed, including a water-repellant film forming unit which forms, on a region other than a region on which is to be formed the functional thin film on the electrode layer, a water-repellant film which includes a self-assembled monolayer; an inkjet coating unit which coats, on the region on which is to be formed the functional thin film on the electrode layer, the precursor layer by an inkjet method; and a controller which controls, to within a predetermined time, a time from forming the water-repellant film with the water-repellant film forming unit to coating the precursor layer with the inkjet coating unit. | 08-01-2013 |
20130235122 | LIQUID DROPLET JETTING APPARATUS - There is provided a liquid droplet jetting apparatus, including: a liquid droplet jetting head configured to include a liquid droplet jetting surface formed with a plurality of nozzles from which liquid droplets are jetted, an energy applying mechanism configured to apply a jetting energy to a liquid in each of the nozzles, and a driving device configured to drive the energy applying mechanism; a relative movement mechanism configured to relatively move, along the liquid droplet jetting surface, the liquid droplet jetting head and an object to be jetted; and a heat radiating member configured to be provided in the liquid droplet jetting head to radiate heat generated in the driving device. The heat radiating member includes a heat radiating surface which is positioned on a plane including the liquid droplet jetting surface or which projects toward the object as compared with the plane including the liquid droplet jetting surface. | 09-12-2013 |
20130242001 | LIQUID-JET HEAD AND IMAGE FORMING APPARATUS - A liquid-jet head includes a channel plate forming an individual liquid chamber in communication with nozzles configured to eject liquid drops, a wall surface member forming a wall surface of the individual liquid chamber, and a drive unit disposed on the wall surface member side and configured to generate a pressure applied to a drive region inside the individual liquid chamber. In the liquid-jet head, a fluid resistance part is formed by disposing an island part in a liquid supply channel configured to supply a liquid to the individual liquid channel, and the island part includes a gradient part on the channel plate side, at least a part of the gradient part being formed such that the part of the gradient part faces the drive region inside the individual liquid chamber. | 09-19-2013 |
20130242002 | METHOD OF PRODUCING AN ELASTIC PLATE MEMBER FOR A LIQUID JET HEAD - A method for producing an elastic plate for a liquid jet head, which includes etching a rolled metal plate based on a rolling direction of the rolled metal plate, to form an etched portion and a non-etched portion on the rolled metal plate. The thickness of the etched portion is thinner than the thickness of the non-etched portion and the rolling direction is substantially perpendicular to a long side of the rolled metal plate. | 09-19-2013 |
20130257991 | FUNCTIONAL LIQUID DEPOSITION USING CONTINUOUS LIQUID DISPENSER - A method of dispensing liquid includes providing a carrier liquid under pressure using a first liquid supply that flows from the first liquid supply through a first liquid supply channel through a liquid dispensing channel through a liquid return channel and back to the first liquid supply continuously during a drop dispensing operation. A functional liquid is provided to the liquid dispensing channel through a second liquid supply channel using a second liquid supply. A drop formation device is selectively actuated to form a discrete drop of the functional liquid in the carrier liquid flowing through the liquid dispensing channel. The functional liquid is immiscible in the carrier liquid. The drop ejection device is selectively actuated to divert the discrete drop of the functional liquid and a portion of the carrier liquid flowing through the liquid dispensing channel toward an outlet opening of the liquid dispensing channel. | 10-03-2013 |
20130257992 | DIGITAL DROP PATTERNING DEVICE AND METHOD - A liquid dispensing system includes a liquid dispenser array structure that includes a functional liquid transfer region located between a liquid dispensing channel and a liquid return channel. A first liquid supply provides a carrier liquid that flows continuously through the dispensing channel, functional liquid transfer region, and return channel during a drop dispensing operation. Liquid dispensers, located on a common substrate, include a second liquid supply that provides a functional liquid, immiscible in the carrier liquid, to the dispensing channel. A drop formation device, associated with an interface of the supply channel and the dispensing channel, is selectively actuated to form discrete functional liquid drops in the flowing carrier liquid. A receiver conveyance mechanism and the functional liquid transfer region are positioned relative to each other such that functional liquid drops are applied to a receiver while the carrier liquid flows through the functional liquid transfer region. | 10-03-2013 |
20130257993 | LIQUID DROPLET DISCHARGE HEAD - A liquid droplet discharge head includes a plurality of discharge unit parts, each of which extends in a first direction. The discharge unit parts are arranged in a second direction intersecting with the first direction. Each of the discharge unit parts includes: a nozzle column configured by a plurality of nozzles; a liquid droplet discharge surface; a common flow path; a plurality of pressure chambers; a damper chamber extending in the first direction; a damper wall arranged between the damper chamber and the common flow path; and a pillar part connecting the damper wall and a separate wall that is different from the damper wall in the damper chamber. A position of the pillar part of at least one discharge unit part of the discharge unit parts in the first direction is deviated from a position of the pillar part in the other discharge unit part. | 10-03-2013 |
20130265368 | LIQUID EJECTING HEAD AND METHOD FOR PRODUCING THE SAME - A method for producing a liquid ejecting head of the present invention includes the steps of: forming an etching stop layer on a portion corresponding to a region in which an independent supply port is formed, on a first face of a substrate; conducting dry etching treatment for the substrate from a second face side until the etched portion reaches the etching stop layer; and removing the etching stop layer by isotropic etching to form the independent supply port, after having conducted the dry etching treatment, wherein the isotropic etching is conducted in such a state that a side etching stopper portion having etching resistance to the isotropic etching is formed in the side face perimeter of the etching stop layer. | 10-10-2013 |
20130286100 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus has a head component that ejects a liquid through nozzle openings to attach the liquid to an object. The liquid contains a tabular grain material, and the head component discharges the liquid in droplets weighing 1 ng to 7 ng, both inclusive, in a way that the droplets reach the object at a velocity of 5 m/s to 8 m/s, both inclusive. | 10-31-2013 |
20130286101 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus has a head component that ejects a liquid through nozzle openings to attach the liquid to an object. The liquid contains a particulate material having a particle size of 200 nm to 1 μm, both inclusive, and the head component discharges the liquid in droplets weighing 1 ng to 7 ng, both inclusive, in a way that the droplets reach the object at a velocity of 5 m/s to 9 m/s, both inclusive. | 10-31-2013 |
20130286102 | Fluid Ejection Device Having Firing Chamber With Contoured Floor - A fluid ejection device includes a firing chamber having a chamber floor with an orifice opposite the chamber floor and a heating element partially covering the chamber floor, a region of the chamber floor being contoured to define a cavity extending into the chamber floor. | 10-31-2013 |
20130293637 | Inlet Manifold for an Inkjet Printhead - An ink manifold for an inkjet printhead is provided, comprising a number of substantially parallel transverse channels | 11-07-2013 |
20130300802 | INK JET INK, INK SET, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPRATUS - An ink to be applied to a recording head having a common liquid chamber, pressure chambers developing pressure applied to the liquid, individual channels through which the liquid is introduced into the pressure chambers from the common liquid chamber, and a group of nozzles which communicate with the pressure chambers and eject the liquid, where first nozzles having short individual channels and second nozzles having long ones are alternately arranged at arrangement intervals of less than 30 μm along one side or sides of the common liquid chamber, contains an aqueous medium, a surfactant and a coloring material. The aqueous medium consists of water and a water-soluble organic compound containing at least one alkanediol and has a surface tension of from 40 mN/m or more to less than 60 mN/m in an environment of temperature 25° C. and humidity 50%. | 11-14-2013 |
20130342609 | PRINTHEAD SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS - A printhead substrate, comprising a plurality of printing elements which are assigned to a plurality of groups, a plurality of driving circuits which are arranged in correspondence with the respective groups and drive the printing elements, a first current source configured to generate currents of a plurality of current amounts corresponding to the respective groups, second current sources which are arranged in correspondence with the respective driving circuits and configured to generate currents to be supplied to the printing elements, and setting units configured to generate voltages in accordance with currents generated by the first current source and set currents to be generated by the second current sources based on the voltages. | 12-26-2013 |
20140002548 | PRINTHEAD AND METHOD OF MAKING THE PRINTHEAD | 01-02-2014 |
20140015901 | LARGE-PARTICLE INKJET DISCHARGED-AREA DEVELOPMENT PRINTING - A method of producing a print on a recording medium includes receiving negative image data for the print to be produced. A selected region of the recording medium is discharged. Charged fluid is deposited in a selected charged-fluid pattern corresponding to the negative image data on the selected region of the recording medium. Charged dry ink having charge of the same sign as the charge in the deposited charged-fluid pattern is deposited onto the recording medium. The deposited dry ink is repelled by the charged-fluid pattern and adheres to the recording medium outside the charged-fluid pattern. | 01-16-2014 |
20140022306 | MEMBRANE MEMS ACTUATOR WITH MOVING WORKING FLUID - A liquid dispenser includes a first liquid chamber and a second liquid chamber. The first liquid chamber includes a nozzle. A liquid supply channel is in fluid communication with the second chamber. A liquid return channel is in fluid communication with the second chamber. A heater is associated with the second liquid chamber. A flexible membrane is positioned to separate and fluidically seal the first liquid chamber and the second liquid chamber relative to each other. A liquid supply provides a liquid that flows continuously from the liquid supply through the liquid supply channel through the second liquid chamber through the liquid return channel and back to the liquid supply. | 01-23-2014 |
20140022307 | LIQUID DISPENSER INCLUDING ACTIVE MEMBRANE ACTUATOR - A liquid dispenser includes a first liquid chamber and a second liquid chamber. The first liquid chamber includes a nozzle. The second chamber is in fluid communication with a liquid supply channel and a liquid return channel. A flexible membrane is positioned to separate and fluidically seal the first liquid chamber and the second liquid chamber from each other. The flexible membrane includes a bimorph actuator that causes the flexible membrane to move from a first position to a second position to eject liquid through the nozzle of the first liquid chamber. In one example embodiment, a liquid supply provides a liquid that flows continuously from the liquid supply through the liquid supply channel through the second liquid chamber through the liquid return channel and back to the liquid supply during a drop dispensing operation. | 01-23-2014 |
20140022308 | LIQUID DISPENSER INCLUDING PASSIVE PRE-STRESSED FLEXIBLE MEMBRANE - A liquid dispenser includes first and second liquid chambers. The second liquid chamber is in fluid communication with liquid supply and liquid return channels. A flexible membrane separates and fluidically seals the first and second liquid chambers from each other. The flexible membrane, residing in a first position, includes a residual compressive stress that exceeds an onset buckling stress of the flexible membrane. A heater, associated with the second liquid chamber, is selectively actuated to create a pressure pulse in a liquid that causes the flexible membrane to move from the first position to a second position to eject liquid through a nozzle of the first liquid chamber. In one embodiment, a liquid supply provides liquid that flows continuously from the liquid supply through the liquid supply channel through the second liquid chamber through the liquid return channel and back to the liquid supply during a drop dispensing operation. | 01-23-2014 |
20140022309 | PRINT HEAD AND INK JET PRINTING APPARATUS - A print head and an ink jet printing apparatus are provided which can have smaller sizes if a print head is used which includes a substrate with a plurality of ejection port arrays and a substrate with ejection port arrays longer than the plurality of ejection port arrays. A drive circuit formed in a substrate is formed outside ejection port arrays in the substrate along the extending direction of the ejection port arrays. The drive circuit formed on an overlapping side of the substrate where the ejection port arrays overlap is formed to be longer, along the extending direction of the ejection port arrays, than a drive circuit formed on a side of the substrate which is opposite to the overlapping side. Furthermore, the ejection port arrays and the ejection port arrays overlap in the extending direction of ink supply ports, and the substrates are mounted on a support. | 01-23-2014 |
20140036001 | Fluid Droplet Ejection - A system for ejecting droplets of a fluid is described. The system includes a substrate having a flow path body that includes a fluid pumping chamber, a descender fluidically connected to the fluid pumping chamber, and a nozzle fluidically connected to the descender. The nozzle is arranged to eject droplets of fluid through an outlet formed in an outer substrate surface. The flow path body also includes a recirculation passage fluidically connected to the descender. The system for ejecting droplets of a fluid also includes a fluid supply tank fluidically connected to the fluid pumping chamber, a fluid return tank fluidically connected to the recirculation passage, and a pump fluidically connecting the fluid return tank and the fluid supply tank. In some implementations, a flow of fluid through the flow path body is at a flow rate sufficient to force air bubbles or contaminants through the flow path body. | 02-06-2014 |
20140043397 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold. | 02-13-2014 |
20140071205 | Phase Change Ink Reservoir for a Phase Change Inkjet Printer - A phase change inkjet printer including a heated phase change ink reservoir configured to reduce or prevent improper jetting of ink from a printhead. The reservoir includes a vent to atmosphere to provide substantially consistent and accurate jetting of the heated ink. A selective barrier, such as a filter, disposed adjacent to the vent substantially prevents ink from entering the vent while still enabling the vent to direct a pressure into the reservoir during printing and during purging. | 03-13-2014 |
20140078222 | PRINTING APPARATUS AND PRINTING SYSTEM - To provide a printing apparatus where printing is possible by easily and rapidly acquiring a desired image, a multi-functional tablet device is provided with an imaging section which acquires an image, a display section which displays the image, an designating section for designating using a fingertip with regard to the displayed image, a printing section which prints an imaging image on a medium, and a control section which creates the imaging image, which is based on the image, based on designation from the designating section and which prints the created imaging image in the printing section, where the control section determines the printing range with regard to the image which is captured by the imaging section based on the designation from the designating section, creates the imaging image by editing the image in the printing range, and determines a printing position where the imaging image is printed on the medium. | 03-20-2014 |
20140092174 | TECHNIQUES RELATED TO SATELLITE AEROSOLS - Examples described herein illustrate techniques related to satellite aerosol generation. In some examples, aerosols are sensed based on the interaction between satellite aerosols and a corona discharge from a corona source. | 04-03-2014 |
20140118443 | LIQUID-EJECTING HEAD AND LIQUID-EJECTING APPARATUS - A liquid-ejecting head includes a channel which is in communication with a nozzle opening and which includes a pressure-generating chamber, a circulation channel that serves to circulate a liquid in the channel, and a pressure generator that serves to generate pressure change. The circulation channel has a narrow portion including a first wall and a second wall, the first wall tilting with respect to a forward direction of a liquid flows and serving to gradually decrease the cross-sectional area, the second wall tilting with respect to the flow direction and serving to gradually increase the cross-sectional area. The tilt angle of the first wall with respect to the inner surface of the circulation channel is larger than the tilt angle of the second wall with respect to the inner surface of the circulation channel at the downstream side. | 05-01-2014 |
20140125736 | METHOD OF WORKING SMALL RECESS PORTION, METHOD OF FABRICATING LIQUID EJECTION HEAD AND LIQUID EJECTION HEAD - The invention is directed to a method of working a small recess portion. In the method, prior to press-forming small recess portions arrayed in a row by pressing a predetermined number of pieces of aligned male dies to a metal base plate, the metal base plate is previously formed with a highly rigid portion at a predetermined portion at a vicinity of an imaginary line extending in a row direction along end portions of predicted press portions to which the respective male dies are pressed. | 05-08-2014 |
20140125737 | PRINT HEAD AND INKJET PRINTING APPARATUS - The print head includes an energy generating element, a chamber for accommodating liquid, and an ejection opening arranged in a position corresponding to the energy generating element. The ejection opening includes at least one projection projecting inside of the ejection opening, the ejection opening having a first region between a front end of the projection and an inner wall of the ejection opening positioned at the shortest distance from the front end, and second regions positioned in both sides of the projection and different from the first region, and when a width of the projection at a chamber-side opening face is represented as a | 05-08-2014 |
20140160206 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a first member including a communication flow path communicating with a pressure chamber, and a second member joined to the first member and including a nozzle communicating with the communication flow path. The communication flow path includes a first flow path section adjacent to the pressure chamber, a second flow path section adjacent to the nozzle and wider than the first flow path section, and an intermediate flow path section including a sloped surface formed between the first flow path section and the second flow path section. An equation “H−Wtan(π/4−θ/2)≧0” is satisfied in which H represents a length of the second flow path section, W represents a maximum width of the second flow path, and θ represents an angle between an imaginary plane parallel to the bottom face of the communication flow path and the sloped surface. | 06-12-2014 |
20140168320 | LIQUID JET HEAD, LIQUID JET APPARATUS, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A liquid jet head | 06-19-2014 |
20140184699 | FILM MEMBER AND LIQUID EJECTING APPARATUS - A film member includes an inside film layer which is disposed on a surface in contact with liquid; an outside film layer which is disposed on the opposite side to the surface of the inside film layer in contact with the liquid; and a junction layer which is disposed between the inside film layer and the outside film layer to join the inside film layer and the outside film layer, in which an SP value (here, the SP value represents a solubility parameter value) of a resin material which forms the junction layer is equal to or larger than an SP value of a resin material that forms the inside film layer, and an SP value of a resin material that forms the outside film layer is equal to or larger than the SP value of the resin material that forms the inside film layer. | 07-03-2014 |
20140184700 | SUBSTRATE FOR INKJET HEAD AND INKJET HEAD - There are provided a substrate for an inkjet head and an inkjet head wherein in a case where a protection layer of heating resistors is energized, an electrical connection with portions around the protection layer is more reliably cut. A first protection layer provided for the substrate for an inkjet head includes individual sections provided at positions corresponding to the plurality of heating resistors and a common section which commonly connects the plurality of individual sections. The individual sections and the common section are connected via connect sections which are eluted and connect in a case where an electrochemical reaction occurs between the connect sections and ink when electricity flow therethrough, so that an electrical connection between the individual sections and the common section is cut. | 07-03-2014 |
20140192117 | PRINT HEAD FOR AN INK JET PRINTER - The invention relates to a print head for an ink jet printer, wherein the print head comprises at least one ink supply channel and at least one nozzle having a nozzle channel and an inflow opening, and ink can be pressed from the ink supply channel through the inflow opening into the nozzle channel and ejected therefrom, wherein the nozzle is arranged in a stationary manner on a side wall of the ink supply channel and in the ink supply channel a ram is provided, which can be moved back and forth between a reversal point (U | 07-10-2014 |
20140210911 | PRINTING METHOD AND APPARATUS - An apparatus and method for use in printing a swath in a multipass printing device are disclosed. The method comprises selectively depositing a drop of ink associated with a pixel to be printed on a print media based on a substantially uniform print mask function during a first pass of a print head, and selectively depositing a further drop of ink associated with the pixel on the print media based on a ramp print mask function during a further pass of the print head. | 07-31-2014 |
20140232791 | FIRING ACTUATOR POWER SUPPLY SYSTEM - A method and apparatus supply electrical current to a firing actuator of a printhead die across a high side switching transistor in a source follower arrangement and supply a regulated voltage, that is no greater than a concurrent voltage at a drain of the HSS transistor, to a gate of the high side switching transistor. | 08-21-2014 |
20140267500 | LIQUID JET HEAD AND LIQUID JET APPARATUS - A liquid jet head is provided with: a nozzle plate which includes a nozzle array having a plurality of nozzle holes arranged side by side along a Y direction; an actuator plate which is laminated on the nozzle plate and includes a channel group having a plurality of first channels communicating with the nozzle holes, the first channels being arranged in parallel at intervals along the Y direction; and an inlet ink chamber and an outlet ink chamber both communicating with the first channels on opposite ends in an extending direction of the first channels. A film member which can be warp-deformed along with pressure fluctuation inside the inlet ink chamber and the outlet ink chamber is arranged as a part of inner surfaces of each of the inlet ink chamber and the outlet ink chamber. | 09-18-2014 |
20140292938 | LIQUID EJECTING HEAD MODULE AND LIQUID EJECTING APPARATUS - A unit head has a head main body having a nozzle surface, and a substrate case having a fastening surface fastened to a fixation frame of a frame and accommodating a relay substrate. The fastening surface of a substrate case is formed at a position closer to a surface of an opposite side to a fixation frame than a side surface of a fastening surface side of the head main body, and the head main body is positioned further at an ink ejecting side than the fixation frame with the faster surface being fixed to the fixation frame, the other end of a first cable whose one end is connected to the electrode terminal of a piezoelectric element is connected to the relay substrate, a second cable connected to the relay substrate is drawn to an opposite side to a nozzle surface from a position close to a surface of an opposite side to the fastening surface, and the other end of the second cable is connected to a drive substrate. | 10-02-2014 |
20140292939 | LIQUID EJECTION HEAD AND PRODUCTION PROCESS THEREOF - The invention provides a process for producing a liquid ejection head, including the steps providing an element substrate provided with an element for generating energy to be utilized for ejecting a liquid, a wiring substrate electrically connected to the element substrate through a lead wire, and a support member provided with a first support portion and a second support portion; applying a sealant to the second support portion; placing the element substrate on the first support portion and bringing the lead wire into contact with the sealant applied to the second support portion; and curing the sealant. | 10-02-2014 |
20140300668 | INKJET PRINTHEAD INCORPORATING OLEOPHOBIC MEMBRANE - An inkjet printhead includes an oleophobic membrane arranged at a location that allows the oleophobic membrane to simultaneously vent air from an ink flow channel of the printhead and to retain ink within the ink flow channel. The oleophobic membrane includes a metal structure having a nanostructured surface and low-surface energy coating disposed on the metal structure. | 10-09-2014 |
20140307032 | MEMBRANE MEMS ACTUATOR INCLUDING FLUIDIC IMPEDANCE STRUCTURE - A liquid dispenser includes a first liquid chamber including a nozzle and a second liquid chamber. A flexible membrane is positioned to separate and fluidically seal the first liquid chamber and the second liquid chamber. A heater is associated with the second liquid chamber. A liquid supply channel is in fluid communication with the second chamber. A liquid return channel is in fluid communication with the second chamber. A liquid supply provides a liquid that flows continuously from the liquid supply through the liquid supply channel through the second liquid chamber through the liquid return channel and back to the liquid supply. A fluidic impedance structure is positioned in the second liquid chamber between the heater and the liquid return channel. | 10-16-2014 |
20140307033 | PRE-HEATING LIQUID EJECTED FROM A LIQUID DISPENSER - A liquid dispenser array structure includes a substrate including a plurality of liquid dispensers. The plurality of liquid dispensers includes a liquid supply channel, a liquid dispensing channel including an outlet opening, and a liquid return channel including a vent located downstream relative to the location of the outlet opening of the liquid dispensing channel. A selectively actuatable first heater heats a portion of the liquid flowing through the liquid supply channel. A selectively actuatable second heater diverts the portion of the liquid previously heated by the first heater toward the outlet opening of the liquid dispensing channel. A liquid supply provides liquid under pressure to the plurality of liquid dispensers. | 10-16-2014 |
20140340450 | INK JET PRINTHEAD DEVICE WITH COMPRESSIVE STRESSED DIELECTRIC LAYER - An ink jet printhead device includes a substrate and at least one first dielectric layer above the substrate. A resistive layer is above the at least one first dielectric layer. An electrode layer is above the resistive layer and defines first and second electrodes coupled to the resistive layer. At least one second dielectric layer is above the electrode layer and contacts the resistive layer through the at least one opening. The at least one second dielectric layer has a compressive stress magnitude of at least 340 MPa. | 11-20-2014 |
20140340451 | DEVICE SUBSTRATE, LIQUID EJECTION HEAD, AND METHOD FOR MANUFACTURING DEVICE SUBSTRATE AND LIQUID EJECTION HEAD - A device substrate includes a substrate body having an energy generating device provided thereon, where the energy generating device generates energy for ejecting liquid, an ejection port forming member disposed on the substrate body, where the ejection port forming member has a pressure chamber that surrounds the energy generating device and an ejection port that communicates with the pressure chamber, and a supply port configured to supply the liquid to the pressure chamber. The ejection port forming member has a first surface that is in contact with the substrate body and a second surface other than the first surface, and the supply port is formed in the second surface. | 11-20-2014 |
20140354733 | Pulsed Air-Actuated Micro-Droplet On Demand Ink Jet - The present subject matter relates to a method and system for pulsed air-actuated micro-droplet on demand jetting, especially for jetting high viscosity liquids. A needle extends from a liquid chamber and terminates in a drop-forming orifice outlet from which micro-droplets are generated. At least two air jets direct a timed pulse of air at the drop-forming orifice outlet of the needle. The pulsed air is synchronized with the formation of a desired volume of liquid at the orifice outlet to extract and propel a micro-droplet at high velocity to a substrate. The air jets are turned on prior to the forming of the desired volume at the orifice outlet of the needle, and turned off after the micro-droplet had been produced. | 12-04-2014 |
20140354734 | NON-CONTACT BIO-PRINTING - A microfluidic electronic device is disclosed. This microfluidic electronic device may include a separate actuator mechanism from a microfluidic cartridge. The microfluidic cartridge may include a fluid reservoir coupled to a nozzle by a channel, where the fluid reservoir holds a fluid with a solvent and a material in solution, and the microfluidic cartridge may be remateably coupled to the microfluidic electronic device. During operation of the microfluidic electronic device, the microfluidic cartridge supplies fluid to the nozzle via the channel, and the actuator mechanism drives droplets from the nozzle without contact between the actuator mechanism and the fluid. Furthermore, the droplets may be driven from the nozzle onto a substrate without contact between the substrate and the nozzle, and a positioning mechanism in the microfluidic electronic device may accurately position the nozzle relative to the substrate. | 12-04-2014 |
20140375727 | LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - A head unit includes a head, an upstream member with an upstream passage supplied with liquid, a downstream member with a downstream passage communicating with the upstream passage and supplying liquid to the head, an elastic sealer connecting the upstream and downstream passages, and including a tube with a connection passage, and a support between the sealer and the downstream member. In the head unit, the upstream member and the sealer apply pressure in a penetration direction of the connection passage and hermetically seal the upstream passage, the sealer and the downstream member apply pressure in a direction perpendicular to the penetration direction of the tube and hermetically seal the downstream passage, and the support abuts a region on a surface of the sealer, the surface being opposite the upstream member, the region overlapping a region to which the sealer and the upstream member apply pressure. | 12-25-2014 |
20150029266 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a pressure chamber that communicates with a nozzle which has an opening at a nozzle formation surface; a communication plate where a common liquid chamber which supplies a liquid to the pressure chamber is formed; a liquid ejecting head having a flexible film which seals the opening surface at the nozzle formation surface side of the common liquid chamber in the communication plate; and a sealing member which has a cavity-shaped sealing hollow section and can be sealed by the nozzle formation surface being confronted in the sealing hollow section. The sealing member is configured so as to be sealable by at least a portion of the flexible film being confronted in the sealing hollow section in a sealed state of the nozzle formation surface. | 01-29-2015 |
20150049141 | FLUID EJECTION DEVICE WITH TWO-LAYER TOPHAT - In an embodiment, a fluid ejection device includes a substrate with a fluid slot, and a chamber layer over the substrate that defines a firing chamber and a fluidic channel extending through the firing chamber and in fluid communication with the slot at first and second ends. The device includes a tophat layer formed as a two-layer stack over the chamber layer, and a nozzle bore over the firing chamber that comprises a greater cavity formed in a first layer of the stack and a lesser cavity formed in a second layer of the stack, the greater cavity encompasses a larger volume than the lesser cavity. | 02-19-2015 |
20150109369 | LIQUID DISCHARGE HEAD - A liquid discharge head includes a substrate on the surface of which a liquid supply port opens, and a sealing material that is in contact with a side surface of the substrate and that seals the side surface of the substrate. On the surface of the substrate, an opening of the liquid supply port extends in a longitudinal direction. In a direction perpendicular to the longitudinal direction, the sealing material has a narrow region and a wide region. When the width of the narrow region is denoted as W1, and the width of the wide region is denoted as W2, W104-23-2015 | |
20150130876 | MEMS ACTUATOR PRESSURE COMPENSATION STRUCTURE FOR DECREASING HUMIDITY - A printhead including a venting system and an actuator array, wherein each actuator may include an actuator air chamber. The venting system includes an air path that vents each actuator air chamber to the atmosphere. The printhead further includes a dryer configured to remove moisture from air within the air path. The dryer may include a passive desiccant, an active resistive heater, or both. | 05-14-2015 |
20150138280 | Printhead Control - A method of printing a two-dimensional bit-mapped image having a number of pixels per row for printing is disclosed. The method and apparatus use either a plurality of overlapping printheads ( | 05-21-2015 |
20150145925 | PRINTHEADS WITH CONDUCTOR TRACES ACROSS SLOTS - The present disclosure describes a printhead circuit, devices, and methods of forming the printhead circuit. An example of a printhead circuit includes a substrate including a slot having a first, a second, and a third dimension in the substrate, circuitry on a first side and a second side of the slot, and a number of conductor traces routed across the slot along substantially a same geometrical plane as the circuitry on the first side and the second side of the slot. | 05-28-2015 |
20150321474 | LIQUID DISCHARGE HEAD, AND RECORDING DEVICE PROVIDED WITH SAME - The present invention aims to provide a liquid discharge head capable of reducing the possibility that ink intrudes into the interior thereof. The liquid discharge head includes a head body which has a plurality of discharge holes, a plurality of pressurizing chambers communicating with the discharge holes, and piezoelectric bodies disposed correspondingly to the pressurizing chambers, a flexible wiring board electrically connected to the piezoelectric bodies, a first member having a hole disposed on the head body, and a second member disposed on the first member. A part of the second member is disposed so as to cover the hole in a plan view. The flexible wiring board is passed through the hole and is led out from between the first member and the second member. | 11-12-2015 |
20150328895 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes an oscillation unit and a circuit board which is electrically connected to the oscillation unit within a case, in which the case includes ink introduction needles which are provided on a nozzle plate of an opposite side from a nozzle surface on which nozzles are formed and a liquid discharge path, one end of which is open in the base plate, and another of which extends to a nozzle surface side and is open toward an exterior of the case, and in which, while an opening of one end side of the liquid discharge path is positioned higher than the circuit board side in a vertical direction in the case, an opening of another end side of the liquid discharge path is positioned lower than the circuit board in the vertical direction in the case. | 11-19-2015 |
20160059554 | LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGE HEAD - A liquid discharge apparatus including a liquid discharge head having a substrate, plural pressure chambers two-dimensionally provided on one surface of the substrate, a discharge port, a pressure generating unit to discharge liquid through the discharge port and a flow path connected to the pressure chamber which are provided correspondingly to each pressure chamber, a common liquid chamber provided on the other surface of the substrate, and plural supply paths provided between adjacent pressure chambers and connected to the common liquid chamber; a moving unit to relatively move the liquid discharge head and a recording object; and a driving unit to drive the pressure generating unit. Flow paths respectively corresponding to the pressure chambers adjacent to the supply paths are connected to the supply paths. The driving unit outputs drive signals to the pressure generating units respectively corresponding to the pressure chambers connected to the supply paths at different timings. | 03-03-2016 |
20160059560 | CHIP LAYOUT TO ENABLE MULTIPLE HEATER CHIP VERTICAL RESOLUTIONS - An inkjet printer including a printhead with a fluid ejection chip and an associated method of forming is described. The fluid ejection chip includes a substrate, a plurality of groups of drive elements formed on the substrate, and a plurality of fluid ejection devices disposed on the substrate. Each group of drive elements includes at least two drive elements electrically coupled in parallel. Each fluid ejection device of the plurality of fluid ejection devices is electrically coupled with a respective group of the plurality of groups of drive elements so that the plurality of drive elements selectively activate the plurality of fluid ejection devices for causing fluid to be expelled from the printhead in accordance with image data. | 03-03-2016 |
20160075133 | LIQUID JET HEAD, LIQUID JET APPARATUS, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A liquid jet head includes ejection channels and dummy channels alternately arrayed across partitions to configure a channel row, and drive electrodes that are side surfaces of the partitions and are positioned from upper ends of the partitions in a depth direction, and an average depth of two drive electrodes positioned on facing side surfaces of the ejection channel is different from an average depth of two drive electrodes positioned on facing side surfaces of the dummy channel adjacent to the ejection channel. | 03-17-2016 |
20160082732 | FLUID EJECTION DEVICES WITH PARTICLE TOLERANT THIN-FILM EXTENSIONS - Fluid ejection devices with particle tolerant thin-film extensions are disclosed. An example apparatus includes a printer; a reservoir; and a printhead including: a firing chamber; a channel to receive fluid from the reservoir, the channel is coupled to the firing chamber, the channel having an opening; and a particle-tolerant film disposed adjacent the opening of the channel, the particle-tolerant film disposed between the channel and the reservoir, the particle-tolerant film to deter particles within the fluid from settling in an area adjacent the opening. | 03-24-2016 |
20160159094 | LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS, AND METHOD OF MANUFACTURING LIQUID DISCHARGE HEAD - A liquid discharge head including a substrate, and an energy-generating element. The substrate is provided with a flow path that penetrates through the substrate from the first surface to a second surface, the flow path supplying the liquid from the second surface side to the first surface side. The flow path includes a plurality of first flow paths and a second flow path that is positioned on the second surface side with respect to the first flow paths. The plurality of first flow paths are open on a bottom portion of the second flow path, and the plurality of first flow paths include a long flow path relatively long in a direction perpendicular to the first surface, and a relatively short flow path. The long flow path has a flow path resistance per unit length that is smaller than that of the short flow path. | 06-09-2016 |
20160176190 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS | 06-23-2016 |
20160185111 | VALVE JET PRINTER WITH INERT PLUNGER TIP - A valve jet printer includes a solenoid coil and a plunger rod having a magnetically susceptible shank. A first end of the shank and at least a portion of the shank are received within a bore of the solenoid coil. The printer also includes a nozzle including an orifice extending therethrough and a spring biasing a second end of the shank toward the nozzle. The second end of the plunger rod includes a tip formed of perfluoroelastomer (FFKM). The second end of the shank includes a cup-shaped cavity having a convex bottom and a circular side. The tip includes a concave base and an annular flange. In an assembled state, the concave base of the tip contacts the convex bottom of the cup-shaped cavity, and the end of the circular side opposite the convex bottom is rolled over the annular flange thereby securing the tip in the cup-shaped cavity. | 06-30-2016 |
20160193832 | AN IMPROVED ACTUATOR FOR A PRINTHEAD | 07-07-2016 |
20180022094 | RAISED FLUID PASS-THROUGH STRUCTURE IN PRINT HEADS | 01-25-2018 |