Class / Patent application number | Description | Number of patent applications / Date published |
347018000 | With particular cooling means | 40 |
20090051724 | HEAD ARRAY UNIT AND IMAGE FORMING APPARATUS - A head array unit includes a plurality of liquid discharging heads configured to discharge liquid and a head supporter configured to support the plurality of liquid discharging heads. The head supporter includes a plurality of liquid inlets, a channel system, and at least two ports. The plurality of liquid inlets is configured to supply liquid to the plurality of liquid discharging heads, respectively. The channel system is configured to sandwich or surround each of the plurality of liquid inlets and contain coolant to control a temperature of the head array unit. The at least two ports are connected to the channel system. | 02-26-2009 |
20090058917 | LIQUID DISCHARGING DEVICE - A liquid discharging device is provided. The liquid discharging device includes a sub coolant tank that is held by a carriage and stores a coolant for cooling a discharge head; and a coolant replacement portion that includes a main coolant tank which can communicate with the sub coolant tank, and replaces the coolant in the sub coolant tank with a coolant in the main coolant tank when the main coolant tank communicates with the sub coolant tank. The sub coolant tank does not communicate with the main coolant tank when the carriage is disposed at a liquid discharge position, and the sub coolant tank communicates with the main coolant tank when the carriage is disposed at a liquid refill position. | 03-05-2009 |
20090066745 | RECORDING UNIT - A recording unit is mounted on a thermal transfer printer in which heating elements of a thermal head are heated to thermally transfer ink a recording material. The recording unit includes a head unit having the thermal head; and a cooling unit having a cooling medium flow path for circulating a cooling medium to cool the thermal head. The cooling unit is configured to cause the head unit to be held at an immovable state relative to the cooling medium flow path so as to surround the cooling medium flow path by the pressure contact of the cooling medium flow path by means of a pressure contact and release mechanism. Separation of the head unit from the cooling unit body is allowed by the release of the pressure contact and release mechanism. | 03-12-2009 |
20090085950 | LIQUID DISCHARGING APPARATUS - A liquid discharging apparatus includes: a liquid discharging head that is provided on a carriage being moved with respect to a recording medium, a recording liquid, which is supplied from a recording liquid supply source, being supplied to the liquid discharging head through a recording liquid flow channel on the carriage; a heat emitting element that emits heat with an discharging operation of the liquid discharging head; a cooling liquid flow channel that is provided on the carriage and passes around the heat emitting element; and a heat sink that is provided between the heat emitting element and the cooling liquid flow channel, at least a part of the heat sink being exposed to the cooling liquid flow channel so as to serve as a part of an inner surface of a wall partitioning the cooling liquid flow channel. | 04-02-2009 |
20090085951 | LIQUID DISCHARGING APPARATUS - A liquid discharging apparatus is provided. The liquid discharging apparatus includes a liquid discharging head that is provided on a carriage reciprocating in a running direction of the carriage, a cooling liquid flow channel that is provided on the carriage; a cooling liquid outgoing channel; and a cooling liquid returning channel, wherein the recording liquid flow channel is led to a first side of the running direction from the carriage, at least one of the cooling liquid outgoing channel and the cooling liquid returning channel is led to a second side that is opposite the first side of the running direction from the carriage, and the recording liquid flow channel and the cooling liquid flow channel are partially separated from each other by a pressure transmission unit so as to enable the recording liquid flow channel and the cooling liquid flow channel to transmit pressure to each other. | 04-02-2009 |
20090135219 | METHOD OF COOLING AND SERVICING AN INKJET PRINT HEAD ARRAY - A compliant cooling conduit is employed to extract heat from an inkjet print head array. The cooler conduit is implemented as a flexible conduit placed between the heat emitting surfaces. Cooling fluid pressure presses the conduit to the heat emitting parts of the print head modules. When fluid pressure is removed the conduit collapses and provides convenient access for print head service. | 05-28-2009 |
20090141062 | INKJET PRINT HEAD AND INKJET PRINTING APPARATUS - A print head having high printing reliability, in which temperature unevenness is suppressed even when printing is performed using a print head having an increased length and density of an ejection opening array can be provided. Specifically, a temperature equalizing member such as a heat pipe and a cooling liquid passage is disposed between a first support substrate and each of second support substrates or is disposed inside the first support substrate. This makes it possible to equalize temperature among the plurality of second support substrates and further equalize temperature among the printing element substrates bonded to these support substrates. In addition, the temperature equalizing member is made close to the printing element substrate, thus making it possible to efficiently equalize temperature. | 06-04-2009 |
20090141063 | INKJET PRINTING HEAD AND INKJET PRINTING APPARATUS - A temperature rise of a head due to a printing operation with a higher speed and a higher density is suppressed. To realize this, an inkjet printing head is provided in which a plurality of printing element substrates having an ejection opening array consisting of a plurality of ejection openings for ejecting ink are arranged on a support plate in a direction of the ejection opening array. The support plate includes therein a heat pipe and a flow path through which cooling liquid is flowed. | 06-04-2009 |
20090141064 | INK JET RECORDING HEAD AND INK JET RECORDING APPARATUS - An ink jet recording head includes a flow passage for a liquid for cooling a recording element substrate. The flow passage is provided inside a support plate that supports the recording element substrate along a recording element array of the recording element substrate. The shortest distance between a recording element and the flow passage at the end of the support plate is larger than the shortest distance between a recording element and the flow passage in the middle of the support plate. | 06-04-2009 |
20090160899 | Printer - An inkjet printer performs printing by circulating cyan, magenta, yellow and black inks in their respective passages. The printer includes a heat exchanger which the passages enter together, and which is configured to promote the temperatures of the inks to be equal to each other. | 06-25-2009 |
20090184995 | LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD - A liquid ejecting apparatus includes: a head which ejects a liquid in accordance with a driving signal; a driving signal generator which generates the driving signal; a sensor which detects the temperature of the head; and a controller which allows the head to wait the liquid ejection performed in accordance with the driving signal on the basis of the detection result of the sensor. | 07-23-2009 |
20090219327 | Inkjet Printer - A heating lamp unit ( | 09-03-2009 |
20090267985 | LIQUID EJECTING APPARATUS - There is provided a liquid ejecting apparatus including a head for ejecting liquid on a medium, a moving mechanism for moving the head in a predetermined direction, and a fan. The fan flows air in the liquid ejecting apparatus in the predetermined direction. | 10-29-2009 |
20100013887 | HEAD CHIP FOR INK JET TYPE IMAGE FORMING APPARATUS - A head chip for an ink jet type image forming apparatus with an improved cooling structure is disclosed. The head chip includes a plurality of nozzles to eject ink, a plurality of heaters for ink ejection to apply heat to ink so that the ink is ejected through the plurality of nozzles, and a cooling channel to circulate a refrigerant around the plurality of heaters for ink ejection. | 01-21-2010 |
20100066785 | INK JET PRINTER - An ink jet printer printing an image using a plurality of types of color ink. The heat exchanger cools and heats the ink to adjust the temperature of the ink. The heat exchanger has a contact and separate mechanism which, for ink cooling, tightly contacts a radiation section with a heat exchange section and which, for ink heating, separates the radiation section from the heat exchange section. | 03-18-2010 |
20100110136 | DROPLET DEPOSITION APPARATUS - Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit. | 05-06-2010 |
20100156986 | INK JET PRINTING APPARATUS - The present invention is to provide an inkjet printing apparatus configured to improve throughput by promoting fixation of ink on a print medium and to effectively promote cooling of a heating member using a relatively simple configuration. To achieve this, the present invention utilizes vaporization heat generated when vaporization components contained in ink ejected to the print medium are vaporized, to take heat from a metal member coming into contact with the print medium. The metal member is then used to cool the print head. | 06-24-2010 |
20100220141 | INK-JET PRINTER - A head carriage of an ink-jet printer is equipped with a heat lamp unit. The heat lamp unit is located very close to ink droplets discharged from an ink-jet head and landing on a recording medium and can directly heat and cure the ink droplets, so that the ink droplets can be efficiently fixed. If the heat lamp unit is placed very close to the ink-jet head, clogging of a nozzle of the ink-jet head and thermal failure of the ink-jet head itself may be caused by heat release of the heat lamp unit, but the heat lamp unit can be cooled efficiently by a cooling mechanism which circulates a refrigerant through a refrigerant circulating pipe by a refrigerant circulating pump, so that the ink-jet head can be prevented from being heated. | 09-02-2010 |
20100309245 | INKJET PRINTER MAINTENANCE SYSTEM - An inkjet printer maintenance system includes a manifold having an air removal passageway communicating with an ink reservoir, a valve in the manifold actuatable for opening and closing the air removal passageway for periodically drawing out air from the flow of ink in the ink reservoir and a valve actuator in the form of an electrically conductive wire sensitive to change in temperature. In response to application of electric current, and termination of application of electric current, the wire correspondingly contracts and extends in length causing the opening and permitting the closing of the air removal passageway by the valve. | 12-09-2010 |
20110007109 | APPARATUS, SYSTEM, AND METHOD FOR COOLING AND HEATING - The present disclosure is generally directed towards an apparatus for use in printing systems. The apparatus may include an ink filter having an ink chamber configured to allow ink to flow therethrough and a coolant chamber configured to allow coolant to flow therethrough. The coolant chamber may be further configured to cool ink in the ink chamber. Numerous other embodiments are also within the scope of the present disclosure. | 01-13-2011 |
20110102491 | Cooler For A Printer - An inkjet printer has been developed that reduces the effects of show-through by depositing ink onto a cooled print medium. The inkjet printer includes a printhead and a cooler. The printhead is configured to eject ink onto an ink receiving member as the ink receiving member is transported along a portion of a media path through the inkjet printer. The cooler is positioned proximate the media path to cool the ink receiving member prior to the printhead ejecting ink onto the ink receiving member. | 05-05-2011 |
20110115842 | LIQUID EJECTING APPARATUS AND CONTROL METHOD THEREOF - In the ejection process in which the ink is ejected by using the ejection driving pulse, the ink is heated by a heating mechanism. On the other hand, in the maintenance process in which the ejection ability of the printing head is recovered by repeatedly applying the maintenance driving pulse to the piezoelectric oscillator, the ink is cooled by a cooling mechanism. | 05-19-2011 |
20110148973 | Pre-Leveler Cooling Device for Continuous Feed Imaging Devices - A temperature leveling system for thermally conditioning ink deposited onto a print media includes a non-contact cooling device for reducing temperatures of ink deposited onto a print media to a first average temperature. A leveler includes a thermal control for maintaining the leveler at a second temperature that is different than the first average temperature. The leveler is configured to bring the temperatures of the ink to within a predetermined range about the second temperature after the reduction in temperature at the non-contact cooling device. A heater is positioned to heat the ink and media to a third temperature after the leveler, the third temperature being greater than the second temperature. | 06-23-2011 |
20110211010 | Apparatus For Controlled Freezing Of Melted Solid Ink In A Solid Ink Printer - An apparatus controls dissipation of heat from melted ink within a component storing melted ink within a solid ink imaging device. The apparatus includes a housing, a passage within the housing that is configured to store melted ink, and a temperature control connector mechanically coupled to the housing and passage, the temperature control connector being configured to mitigate void formation in melted ink as the melted ink cools in the passage. | 09-01-2011 |
20110227987 | THERMAL INKJET PRINTHEAD FEED TRANSITION CHAMBER AND METHOD OF COOLING USING SAME - A thermal inkjet printhead and a method of cooling convectively cool the printhead with ink passing through a feed transition chamber. The thermal inkjet printhead includes a bridge beam and feed channels adjacent to the bridge beam. The printhead further includes a feed transition chamber between inputs to the feed channels and an ink reservoir. The ink flows through the feed transition chamber between the ink reservoir and the feed channels to convectively cool. The method of cooling includes providing the feed transition chamber and flowing ink through the feed transition chamber from the ink reservoir to the feed channels. The flowing ink establishes a temperature gradient between walls of the feed transition chamber and the ink. The temperature gradient facilitates convective cooling of the printhead. | 09-22-2011 |
20120062640 | INKJET RECORDING DEVICE - An inkjet recording device for ejecting ink onto a recording medium to form an image on the recording medium while a recording head is moved with relative movement to the recordin medium in a direction along an upper surface of the recordin medium including: a recording head for ejecting ink onto a recording medium; a heating device for heating the recording medium; a conveyance device for conveying the recording medium having been heated by the heating device to under the recording head; and a cooling device which is provided in a state of insulation from the recording head, and has a cooling surface which is cooled to a temperature lower than a temperature of a nozzle surface of the recording head, wherein the cooling surface and the nozzle surface of the recording head are disposed along a direction of the relative movement and to face the recording medium. | 03-15-2012 |
20120098882 | RECORDING APPARATUS - In a transfer inkjet recording system, a cooling unit is configured to independently cool multiple locations in a region in which an intermediate image of an intermediate transfer medium is formed in accordance with one of a temperature of the intermediate transfer medium after being heated by a heating unit or in accordance with image data. | 04-26-2012 |
20120113182 | PRINTER WITH COOLING FOR INKJET PRINT HEADS, AND METHOD FOR THIS - In a printer for printing a recording material, a printer frame bears a printing unit with a plurality of print heads arranged substantially horizontal and transverse to a transport direction of the recording material. A distributor is provided for air and a coupling unit is arranged stationary in the printer frame and via which air is supplied to the distributor. The distributor comprises at least one cooling air segment to supply cooling air in a vertical direction to the print heads and at least one exhaust air segment to discharge heated air. | 05-10-2012 |
20120162304 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An apparatus and method which can suppress the occurrence of set off when recording media are stacked on a discharge unit. Ink droplets are ejected to a sheet by inkjet heads in a drawing section, and an image is fixed to the sheet by heating in a fixing section. After that, during the sheet is conveyed by a conveying belt, cooling air is sent to plural fans by a cooler such that the cooling air is blown against the fans, and air is blown to the sheet by the plural fans. Accordingly, the sheet which is after fixing is cooled. The sheet, which has been cooled during being conveyed by the conveying belt, is stacked on a discharge tray. | 06-28-2012 |
20120200631 | COOLING RATE AND THERMAL GRADIENT CONTROL TO REDUCE BUBBLES AND VOIDS IN PHASE CHANGE INK - The Niyama number of a flow path for phase change ink is the ratio of cooling rate of the ink to the thermal gradient of the ink along the ink flow path. Print head assemblies can be designed and configured to achieve ink flow paths having Niyama numbers that are greater than a critical Niyama value. These designs reduce entrapment of air in the ink as the ink is changing phase and provide optimal bubble and void mitigation for phase change ink. The thermal gradient of the ink flow path can be achieved using passive and/or active thermal elements disposed along the ink flow path. | 08-09-2012 |
20130100198 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a cooling unit configured to actively cool a sheet, a humidification unit configured to increase a moisture content of the sheet by supplying a humidified gas onto the sheet, and an inkjet print head configured to perform printing on the sheet having a moisture content increased by the humidification unit. | 04-25-2013 |
20130169711 | Modular Web Roller Assembly - A modular roll bar assembly for use in a continuous web imaging device includes a plurality of roll bars, a support frame configured to operatively support the plurality of roll bars such that the plurality of roll bars define a web path having a non-linear shape with an entrance end and an exit end, the entrance end being configured to receive a substantially continuous web of substrate material, the plurality of roll bars being configured to guide the continuous web past the exit end, and a temperature control system having a source of thermally controlled air that is configured to supply air at a predetermined temperature and velocity, and a plenum positioned in the support frame that is configured to guide the thermally controlled air from the source to the plurality of roll bars to heat or cool the plurality of roll bars to a predetermined temperature. | 07-04-2013 |
20130201243 | PRINTING APPARATUS AND METHOD OF SUPPRESSING RISE OF TEMPERATURE OR PRINT HEAD UNIT - A printing apparatus includes an ink storage unit; a print head unit that includes an ink reception port, an ink discharging device, and an ink exhaust port; an ink circulation path that circulates ink which is exhausted from the ink exhaust port, and returns ink from the ink reception port to the print head unit; and a cooling device that is arranged in the ink circulation path, and cools ink which passes through the ink circulation path. | 08-08-2013 |
20130286077 | INKJET PRINTERS - The invention describes a method of and means for reducing solvent consumption in a continuous inkjet printer that comprises cooling the ink within the printer system. Ink from the ink reservoir is preferably circulated through a heat exchanger. | 10-31-2013 |
20130328963 | INKJET PRINTER - When an infrared-ray radiation device is arranged immediately above an ink jet head, the infrared-ray radiation device causes the temperature of a carriage to rise, resulting in ejection failure of ink. Further, employing a heat insulation material for the carriage requires cost and space for the heat insulation material. Even when a fan is mounted to an apparatus to introduce outside air, the temperature in the vicinity of the carriage is not easily decreased because the carriage is located at the center of the apparatus. When the outside air is actively introduced in a direction toward the carriage, the following problems arise. That is, the temperature of a recording medium is dropped, and hence the ink landing on the recording medium causes fixing failure. Further, the air is led to a nozzle surface of the ink jet head, and hence ejection failure occurs. Therefore, there is adopted a structure in which the outside air taken into the apparatus is directly taken into the carriage so that the temperature inside the carriage can be set close to the temperature of the outside air regardless of the temperature inside the apparatus, to thereby enable stable ejection by the ink jet head. At the same time, the outside air taken into the apparatus is discharged out of the apparatus through a duct located at a position away from a print surface, to thereby prevent decrease in temperature of the recording medium and ejection failure of the ink from the ink jet head. | 12-12-2013 |
20140049579 | IMAGE FORMING APPARATUS - An image forming apparatus disclosed herein includes: a conveying section that is provided in an apparatus main body and conveys a recording medium; a liquid droplet ejection head that ejects liquid droplets onto the recording medium which is conveyed by the conveying section; a dew condensation member that is provided around the liquid droplet ejection head and allows moisture in air to condense thereon; and a discharge section that discharges water droplets, which are condensed onto the dew condensation member, to an outside of the apparatus main body. | 02-20-2014 |
20140071197 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus including: at least two guide members; a drying section; an ink curing section that illuminates light onto a front surface of the recording medium that has been dried by the drying section and cures the ink; a single liquid coolant circulation device that circulates liquid coolant to respectively formed circulation flow paths between the liquid coolant circulation device and a plurality of cooling targets for which cooling is required due to heat of the drying section or heat of the ink curing section, that cools one of the cooling targets with intermittent circulation of liquid coolant, and that cools another of the cooling targets with continuous circulation of liquid coolant; and an opening and closing portion that opens and closes one of the circulation flow paths to intermittently circulate the liquid coolant of the one cooling target. | 03-13-2014 |
20140146107 | FILTER FLUID AND COOL AT LEAST ONE ELECTRICAL COMPONENT WITH FILTERED FLUID - A method of cooling at least one electrical component of a printing system includes establishing a fluid flow path by a fluid flow generator from a print zone to the at least one electrical component. The method also includes obtaining fluid including aerosol and air from the print zone to be transported along at least a portion of the fluid flow path. The method also includes filtering the aerosol from the air transported along the at least a portion of the fluid flow path by a filter unit to form a filtered fluid. Further, the method also includes directing the filtered fluid to the at least one electrical component by a duct unit to cool the at least one electrical component. | 05-29-2014 |
20140292887 | LIQUID EJECTION APPARATUS - A liquid ejection apparatus includes a plurality of liquid ejection heads each comprising a channel member having a plurality of ejection openings, a plurality of channels communicated with the plurality of ejection openings, and a heat body, and a plurality of radiators each provided for each of the plurality of liquid ejection heads. The liquid ejection apparatus further includes a plurality of temperature sensors each provided for each of the plurality of liquid ejection heads and outputting a signal indicating a temperature of the channel member, a heat-resistance change device changing a heat resistance between one of the plurality of radiators and one of the plurality of liquid ejection heads corresponding to the one of the plurality of radiators, and a controller controlling the heat-resistance change device based on the signal outputted from at least one of the plurality of temperature sensors. | 10-02-2014 |
20150124019 | PRINTHEAD INCLUDING INTEGRATED CIRCUIT DIE COOLING - One example provides a printhead including a substrate and a fluidics structure attached to the substrate. The fluidics structure includes actuators for ejecting ink from the printhead. The printhead includes an integrated circuit die attached to the substrate. The integrated circuit die is for driving the actuators. The integrated circuit die is cooled by a coolant contacting the integrated circuit die and flowing through the substrate. | 05-07-2015 |