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| Number | Title | Issue Date |
| 8186796 | Element substrate and printhead An element substrate capable of obtaining a high-quality printed image for a long period. The element substrate has a plurality of heaters, driving elements each of which is provided in correspondence with each of the plurality of heaters to selectively drive the pl... | 05/29/2012 |
| 8172355 | Liquid discharge head and liquid discharge apparatus using liquid discharge head A compact and highly reliable recording head enabling precise detection of temperature information for each nozzle and rapid as well as highly accurate detection of nozzles with a discharge defect can be achieved. An electrothermal transducing member is provided on ... | 05/08/2012 |
| 8167398 | Liquid jet head A recording apparatus includes: a recording head that has: an inlet; an outlet; a supply and discharge flow path; a nozzle; and a liquid supply flow path, a liquid flow forming unit that forms a flow of liquid toward the outlet in the supply and discharge flow path;... | 05/01/2012 |
| 8141975 | Temperature monitoring system for a media preheater A temperature monitoring system for a media heater of an imaging device comprises a temperature indicator overlying a surface of a media heater of an imaging device. The temperature indicator is configured to vary an optical property in response to changes in temper... | 03/27/2012 |
| 8136907 | System and method for compensating for registration errors arising from heated rollers in a moving web printing system A method compensates for thermal expansion of rollers in a web print zone. The method includes receiving an angular velocity signal from a first encoder for a roller in a print zone of a moving web printing system, receiving a signal from a first temperature sensor ... | 03/20/2012 |
| 8136905 | Drop volume compensation for ink supply variation The present invention relates to a method that enables image quality of a printed image to be maintained by reducing unintended variations in drop volume, through the adjustment of ink drop ejecting conditions depending on the amount of ink remaining in an ink tank ... | 03/20/2012 |
| 8136906 | Image recording apparatus and ink amount calculation method for this image recording apparatus An image forming apparatus calculates an ink temperature considering a thermal capacity near nozzles and an ink circulation flow quantity of a circulation pump in addition to an ink temperature when flowing into a recording head and an ink temperature when flowing o... | 03/20/2012 |
| 8136908 | Apparatus and method for ink jet printing The present invention provides an ink jet printing apparatus and a method for controlling temperature for the ink jet printing apparatus wherein the temperature of a print head, which may lower during printing, is controlled before printing without using any sub-hea... | 03/20/2012 |
| 8113616 | Liquid ejecting apparatus A liquid ejecting apparatus, including: a liquid ejecting head having a plurality of liquid-ejection openings, a liquid channel, and a plurality of actuators; an inflow liquid temperature sensor which detects a temperature of a liquid to be flowed into the liquid ch... | 02/14/2012 |
| 8109593 | Substrate for inkjet head and inkjet head using the same A substrate has M×N heater elements divided into N blocks and time divisionally driven in units of the block, and signal lines for supplying M bits of signals for selecting elements to be driven in each block. The signal lines are divided into two groups, each exte... | 02/07/2012 |
| 8109592 | Liquid-ejecting head, liquid-ejecting device, liquid-ejecting method, and ejection medium for liquid-ejecting head A liquid-ejecting head includes a liquid cell that contains an ejection medium that is liquid at normal temperature, a nozzle for ejecting the ejection medium in the liquid cell, an energy unit for supplying ejection energy to the ejection medium in the liquid cell,... | 02/07/2012 |
| 8104858 | Inkjet head An inkjet head may comprise an ejection port which ejects ink and an ink flow path which supplies the ink to the ejection port. The inkjet head may also comprise an ejection actuator which supplies ejection energy to the ink in the ink flow path. The ejection energy... | 01/31/2012 |
| 8096634 | Temperature compensation for full-width arrays write heads A method and system for compensating for temperature changes is disclosed that includes a mounting bar, a plurality of imaging chips adaptively mounted on the mounting bar, each imaging chip including a plurality of imaging elements, and a temperature determiner to ... | 01/17/2012 |
| 8083311 | Ink-jet printing apparatus, control method therefor, program, and storage medium An object of this invention is to prevent prolongation of the time taken for a suction recovery operation while suppressing wasteful consumption of ink in the suction recovery operation. An ink-jet printing apparatus includes a plurality of caps which, when a plural... | 12/27/2011 |
| 8075079 | Ink cartridge with bubble point pressure regulator defined in laminated wall An ink cartridge for an inkjet printer having a laminated wall. The laminated wall defines: an air inlet; a regulator channel having a first end communicating with the air inlet and a second end defining a bubble outlet; and a wetting system for maintaining liquid i... | 12/13/2011 |
| 8066347 | Recording element substrate, recording head, and ink jet recording apparatus having the recording head Measurement accuracy in temperature of a substrate for an ink jet head is improved. A substrate for an ink jet head includes diode sensors and aluminum sensors and as plural kinds of substrate temperature sensing elements, each of which has an output voltage propert... | 11/29/2011 |
| 8042902 | Pressure adjustment apparatus and image forming apparatus, and pressure adjustment method and liquid remaining amount determination method A pressure adjustment apparatus for adjusting a pressure of liquid inside a liquid ejection head including nozzles and flow channels includes: a tank; a pump; a buffer chamber; a first switching device; and a second switching device. The tank includes a movable film... | 10/25/2011 |
| 8038249 | Ink jet recording apparatus, and method for controlling recording head temperature An ink jet recording apparatus for effecting recording using a recording head for ejecting ink, the ink jet recording apparatus including a heating section for heating the recording head, a detecting unit for detecting a temperature of the recording head, a setting ... | 10/18/2011 |
| 8033631 | Recording head and test apparatus for recording head A recording head in which a plurality of recording elements is arranged in an order is provided. The recording head includes a plurality of driving circuits that generate signals for driving transistors, each of the plurality of driving circuits being provided for a... | 10/11/2011 |
| 8016379 | Printhead controller for controlling printhead on basis of thermal sensors A printhead controller is provided for supplying dot data to a printhead module having a plurality of nozzles for expelling ink. The printhead module includes a plurality of thermal sensors. Each of the thermal sensors is configured to respond to a temperature at or... | 09/13/2011 |
| 8007068 | Printer having recycling ink and pressure-equalized upstream and downstream ink lines A printer comprising a printhead and a pressure-regulating chamber containing ink at a predetermined first level relative to the printhead. The chamber comprises an outlet port, a return port positioned in a base of the chamber, a snorkel extending from the return p... | 08/30/2011 |
| 7997677 | Convertible printer A convertible printer usable with either a flexible media or rigid media is disclosed. ... | 08/16/2011 |
| 7971955 | Method and control unit for controlling the power supplied to a plurality of heat sources in a printer A control unit for a printing apparatus has a plurality of heat sources, each heat source being operable at an individual power level. The control unit is configured to control the power supplied to the heat sources such that, at each instant, the sum of the deliver... | 07/05/2011 |
| 7959249 | Liquid-ejecting head, liquid-ejecting device, liquid-ejecting method, and ejection medium for liquid-ejecting head A liquid-ejecting head includes a liquid cell that contains an ejection medium that is liquid at normal temperature, a nozzle for ejecting the ejection medium in the liquid cell, an energy unit for supplying ejection energy to the ejection medium in the liquid cell,... | 06/14/2011 |
| 7950764 | Pressure regulating mechanism and liquid ejecting apparatus A pressure regulating mechanism which includes a pressure regulating chamber that introduces a liquid from a liquid supply source through an inlet port, stores the liquid, and discharges the stored liquid to an object through an outlet port, an on/off valve, a press... | 05/31/2011 |
| 7950765 | Liquid discharge head and liquid discharge apparatus using liquid discharge head A compact and highly reliable recording head enabling precise detection of temperature information for each nozzle and rapid as well as highly accurate detection of nozzles with a discharge defect can be achieved. An electrothermal transducing member is provided on ... | 05/31/2011 |
| 7942492 | Liquid transporting apparatus having temperature regulation An ink transporting head includes a head main body in which, an ink channel is formed, a transporting electrode which is arranged on an inner surface of the ink channel, an insulating layer which is arranged on the inner surface of the ink channel to cover the trans... | 05/17/2011 |
| 7938501 | Ink jet printing apparatus and ink jet printing method A voltage pulse that keeps the ejection volume within a specified range is selected for a plurality of print element columns, based on the heater rank and ink temperature information that influences the ejection volume during ink ejection. At this time, the voltage ... | 05/10/2011 |
| 7938500 | Printhead IC with multiple temperature sensors A printhead IC comprising: an array of nozzles having a plurality of adjacent regions; and, drive circuitry for sending an electrical pulse to each of the nozzles individually such that they eject a drop of printing fluid; and, a plurality of temperature sensors for... | 05/10/2011 |
| 7926899 | Inkjet printer having robust bubble-point ink pressure regulator An inkjet printer includes an inkjet printhead and an ink pressure regulator in fluid communication with the printhead via an ink line. The regulator includes an ink chamber having an ink outlet connected to the ink line; an air inlet; a regulator channel having a f... | 04/19/2011 |
| 7926898 | Faster warm-up, lower energy, and quieter modes for solid ink printers A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then vari... | 04/19/2011 |
| 7918525 | Nozzle arrangement with sealing structure and thermal actuator A nozzle arrangement for an inkjet printer. the nozzle arrangement comprising a substrate assembly defining an inlet channel; a nozzle chamber wall and a roof wall collectively positioned on the substrate assembly to define a nozzle chamber in fluid communication wi... | 04/05/2011 |
| 7909423 | Ink jet recording head An ink jet recording head includes an ejection outlet array including a plurality of ejection outlets; an ink flow path portion in fluid communication with the ejection outlets to supply ink to the ejection outlets; a recording element substrate provided with the ej... | 03/22/2011 |
| 7883170 | Liquid droplet ejection apparatus and method for manufacturing device A liquid droplet ejection apparatus includes an ejection head having an ejection surface with an ejection outlet for ejecting a droplet of a functional liquid, a first container connected to the ejection head via a flow path to form a first space for containing the ... | 02/08/2011 |
| 7871143 | Ground structure for temperature-sensing resistor noise reduction An inkjet printhead. The inkjet printhead includes a temperature-sensing resistor with a low voltage end which is connected to a ground structure that at least partially encloses the temperature sensing resistor. ... | 01/18/2011 |
| 7862138 | Flow control in an ink pen In one embodiment a pressure regulator for an ink pen includes: a diaphragm between a lower pressure region and a higher pressure region, the diaphragm movable toward the lower pressure region in response to an increase in a pressure difference across the diaphragm;... | 01/04/2011 |
| 7857412 | Inkjet recording apparatus and method for controlling same An inkjet recording apparatus includes a head assembly in which a plurality of head chips, each having multiple nozzles arranged therein for discharging ink, are disposed in the arrangement direction of the nozzles. The discharge of ink from the nozzles of each head... | 12/28/2010 |
| 7841684 | Ink pressure regulator with improved liquid retention in regulator channel There is provided an ink pressure regulator for regulating a hydrostatic pressure of ink supplied to an inkjet printhead. The regulator comprises: an ink chamber having an ink outlet for fluid communication with the printhead via an ink line; an air inlet; a regulat... | 11/30/2010 |
| 7815277 | Image recording device An image recording device include a control section. The control section circulates the ink in the ink path by section of a circulation driving section, sets at least one of the heads selected based on a temperature of the heads as a temperature measurement head, an... | 10/19/2010 |
| 7798593 | Ink jet printing apparatus and method for controlling temperature of the same An ink jet printing apparatus and method can perform temperature control before printing so as to provide for a decrease in the temperature of a print head during printing without using any sub-heaters, to establish a favorable ejection state while preventing the he... | 09/21/2010 |
