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| Number | Title | Issue Date |
| 8113613 | System and method for maintaining or recovering nozzle function for an inkjet printhead A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a p... | 02/14/2012 |
| 8109587 | Capacitive load driving circuit and liquid droplet jetting apparatus A capacitive load driving circuit including: a filter including an inductor to which an analog driving signal is input, and a capacitor with a fixed capacitance where one electrode is connected the inductor and other electrode grounded; a plurality of capacitive loa... | 02/07/2012 |
| 8109586 | Fluid ejection device Embodiments of a fluid ejection device are disclosed. ... | 02/07/2012 |
| 8109588 | 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; a pressure chambe... | 02/07/2012 |
| 8104856 | Printer A printer includes a holding unit, a printer head, a supporting device, a movement controller and a printing controller. The holding unit is configured to hold a print substrate having a surface to be printed. The axes X and Y pass through the print substrate. The m... | 01/31/2012 |
| 8100492 | Liquid ejecting apparatus A liquid ejecting apparatus includes a liquid ejecting head disposed on a transport path of a target to eject liquid from nozzles at a nozzle forming surface, a target transport unit transporting the target on the basis of a driving force of a first driving source s... | 01/24/2012 |
| 8100491 | Liquid jet apparatus and printing apparatus A liquid jet apparatus includes a plurality of nozzles provided to the liquid jet head, an actuator provided corresponding to each of the nozzles, drive unit that applies a drive signal to the actuator, drive waveform signal generation unit that generates a drive wa... | 01/24/2012 |
| 8096631 | Ink-jet type image-forming apparatus and ink-jet type image-forming method An image-forming apparatus is provided which prevents irregularity of an image density and improves the life of heating elements. In a half of recording heads (a group of recording heads 22K2, 22K4, 22K6 not adjacent to each other), off t... | 01/17/2012 |
| 8091973 | Printing system with power regulation A printing system comprising: a printhead cartridge comprising a printhead; a cradle unit for supporting the printhead cartridge; and an interface at which the cradle unit is removably engageable with the printhead cartridge, the interface comprising connections for... | 01/10/2012 |
| 8091974 | Coloring material recording device, coloring material recording program, and image forming apparatus A coloring material recording device comprises a plurality of image recording elements and a control unit. The plurality of image recording elements record with a plurality of coloring materials on a recording medium and form an image, and one of the plurality of im... | 01/10/2012 |
| 8087740 | Continuous ink jet apparatus and method using a plurality of break-off times A method of operating a continuous liquid drop emission apparatus includes providing a liquid drop emitter that emits a plurality of continuous streams of liquid through a plurality of nozzles. A jet stimulation apparatus transfers energy to the liquid sufficient to... | 01/03/2012 |
| 8075076 | Signal processing apparatus, droplet ejection apparatus and signal processing method A signal processing apparatus has a first circuit board having a digital/analog converter, a second circuit board having an operational amplifier, a connector connecting the first circuit board and the second circuit board, a transmitter on the first circuit board, ... | 12/13/2011 |
| 8056999 | Printer with configurable memory A printer is described that has a configurable memory to which waveform definitions are uploaded just prior to a printing process. The printer manufacturer can program a printer controller with waveforms that have been created by the printer manufacturer, instead of... | 11/15/2011 |
| 8057000 | Element substrate, printhead, head cartridge, and printing apparatus This invention relates to an element substrate capable of confirming an electrical connection status before a printhead malfunctions. The element substrate is a substrate for a printhead, which is detachable from a printing apparatus and includes a plurality of prin... | 11/15/2011 |
| 8052239 | Driving apparatus of inkjet head An inkjet head driving apparatus, wherein serial data indicating emission or non emission of nozzles respectively for a plurality of heads, is latched and memorized, and the nozzles are driven respectively based on the data memorized, the inkjet head driving apparat... | 11/08/2011 |
| 8052240 | Droplet ejecting apparatus and current control method A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a co... | 11/08/2011 |
| 8042898 | Inkjet recording apparatus and method The inkjet recording apparatus includes: an inkjet recording head which includes a nozzle through which liquid is ejected; a pressure regulating unit which includes a liquid chamber that communicates with the nozzle and a gas chamber that is partitioned from the liq... | 10/25/2011 |
| 8042897 | Method for compensating shift in on resistance of transistor of printhead Disclosed is a method for compensating a shift in an ON resistance of a transistor in a chip of a printhead of an inkjet printer. The method includes determining a value of a life indication parameter of the printhead and comparing the determined value of the life i... | 10/25/2011 |
| 8038241 | Inkjet recording device An inkjet recording device according to an aspect of the invention comprises: an ejection head configured to eject ink on a recording medium; a conveying unit configured to convey the recording medium on a conveying path, the conveying path including a first conveyi... | 10/18/2011 |
| 8038242 | Droplet ejecting apparatus and current control method A droplet ejecting component of the present invention includes an ejecting component having a charge and discharge characteristic, an applying component being provided with a transistor, and an increasing component. The ejecting component ejects a droplet. When a co... | 10/18/2011 |
| 8033626 | Ink jet printhead module and ink jet printer An ink jet printhead module adapted for use in a printing apparatus, the ink jet printhead module being capable of receiving address signals and chip selection signals from a printhead drive unit of the printing apparatus. The printhead module includes chip control ... | 10/11/2011 |
| 8025352 | Ink jet printing apparatus and ink jet printing method An ink jet printing apparatus is provided which is capable of producing an image with a good balance between image quality and printing speed, without unduly shortening a longevity of a print head, even when an odd-numbered-pass bidirectional printing is performed. ... | 09/27/2011 |
| 8020954 | Recording apparatus and data processing method for recording apparatus A host device sends, as setting data, data including a registration adjustment value corresponding to a relative distance between nozzle arrays in a scanning direction. A recording apparatus includes a recording buffer 4 that stores recording data of each noz... | 09/20/2011 |
| 8011747 | Printer controller for controlling a printhead with horizontally grouped firing order A printer controller for controlling a printhead comprising at least one monolithic printhead module, the at least one printhead module having a plurality of rows of nozzles configured to extend, in use, across at least part of a printable pagewidth of the printhead... | 09/06/2011 |
| 8002373 | Driver device and liquid droplet ejection device In a switch provided in a driver device and connected to a driver, a terminal and a lever is separated from each other (in the separated state) when a predetermined electric potential is not applied to a gate electrode. When a predetermined electric potential is app... | 08/23/2011 |
| 7997671 | Capacitive load driving circuit and method, liquid droplet ejection device, and piezoelectric speaker driving device There is provided a capacitive load driving circuit which applies a driving signal to a capacitive load. The driving circuit includes: an operational amplifier outputting a difference signal between signals from an inverting input terminal and a non-inverting input ... | 08/16/2011 |
| 7992952 | Enhanced communications protocol for improved modularity in a micro-fluid ejection device Methods and apparatus for improving modularity in a micro-fluid ejection device and for providing instruction data to a plurality of data handling devices within a micro-fluid ejection device. The method includes generating device data and appending an address to th... | 08/09/2011 |
| 7988248 | Print engine for rotated ejection nozzle correction A print engine is provided having printhead modules and a controller. Each printhead module has a plurality of ejection nozzles. The nozzles of at least one of the printhead modules is rotationally displaced relative to the other printhead modules. The controller co... | 08/02/2011 |
| 7988247 | Ejection of drops having variable drop size from an ink jet printer A method for causing ink to be ejected from an ink chamber of an ink jet printer includes causing a first bolus of ink to be extruded from the ink chamber; and following lapse of a selected interval, causing a second bolus of ink to be extruded from the ink chamber.... | 08/02/2011 |
| 7954917 | Exposure device, exposure system, light-emitting element circuit board and image forming apparatus An exposure device includes a circuit board, a light-emitting element member, a driving signal generating unit and a first voltage supply unit. The light-emitting element member is disposed on the circuit board. The light-emitting element includes plural light-emitt... | 06/07/2011 |
| 7954916 | Droplet ejecting apparatus for forming dots on a medium An apparatus for ejecting droplets includes an actuator which applies ejection pressure to a pressure chamber which stores ink; a nozzle communicating with the pressure chamber and capable of ejecting a main droplet having a trajectory and a satellite droplet having... | 06/07/2011 |
| 7950758 | Liquid discharge apparatus and image forming apparatus A liquid discharge apparatus is disclosed that includes a liquid discharge head that discharges plural types of liquid droplets; a drive waveform generating unit that generates and outputs a drive waveform including a first drive signal group made up of one or more ... | 05/31/2011 |
| 7946671 | Inkjet printer for photographs A photo printer that prints 6″×4″ photos that has a stationary printhead. The printhead has a plurality of color channels, each color channel comprising at least one nozzle row extending along the length of said printhead, each nozzle in a color channel ejectin... | 05/24/2011 |
| 7946672 | Printing apparatus and printing method A printing apparatus including a plurality of ink cartridges each supplying ink; an image processor generates print data for each ink based on input print data; a buffer which stores the print data generated by the image processor for each ink; a print head for disc... | 05/24/2011 |
| 7946670 | Inkjet printer with a replaceable quality-assured ink cartridge An inkjet printer includes a replaceable ink cartridge. The ink cartridge stores ink to be printed. The ink cartridge includes a quality assurance (QA) integrated circuit (IC) containing cartridge data. A controller unit is configured to read the cartridge data from... | 05/24/2011 |
| 7922276 | Ink jet printhead module and ink jet printer An ink jet printhead module including multiple chip control circuits is provided. The ink jet printhead module is capable of receiving multiple address signals and multiple chip selection signals from a printhead drive unit of the printing apparatus. Each of the chi... | 04/12/2011 |
| 7918519 | Methods and apparatus for handheld printing with optical positioning Methods and apparatus include a handheld printer manipulated by an operator to print an image on a media. A controller correlates a location of a printhead to the image and causes printing or not. A position sensor provides input to the controller. Its signal typifi... | 04/05/2011 |
| 7896455 | Element substrate, and printhead, head cartridge, and printing apparatus using the element substrate An element substrate has a plurality of printing elements, and a block selection unit which divides the plurality of printing elements into a plurality of blocks and time-divisionally drives the blocks. The element substrate includes a plurality of input terminals w... | 03/01/2011 |
| 7891749 | Printhead IC with multiple operating modes A printhead IC for receiving print data from a print engine controller (PEC) which may be one of a plurality of different types of PEC. The printhead IC has an array of nozzles for ejecting drops of printing fluid onto a media substrate and drive circuitry for drivi... | 02/22/2011 |
| 7887150 | Controlling fire signals Embodiments for controlling fire signals are disclosed. ... | 02/15/2011 |
