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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7887149 | Capacitive load driving circuit and image forming device There is provided a capacitive load driving circuit connected to a capacitive load that causes ejection, from an ejecting nozzle, of a liquid droplet of a droplet amount that corresponds to a voltage level of charging voltage, the capacitive load driving circuit inc... | 02/15/2011 |
| 7887150 | Controlling fire signals Embodiments for controlling fire signals are disclosed. ... | 02/15/2011 |
| 7874630 | Recording system having a plurality of controllers arranged respectively for a plurality of recording heads A recording system for performing a recording operation on a target includes a plurality of recording heads, a plurality of controllers that are arranged respectively for the plurality of recording heads, a data distributor that distributes second data to each of th... | 01/25/2011 |
| 7862134 | Liquid ejecting apparatus and method of driving liquid ejecting head Provided is a liquid ejecting apparatus including: pressure generation chambers communicating with nozzle openings for ejecting a liquid; and a liquid ejecting head including pressure generation units which cause pressure variations in the pressure generation chambe... | 01/04/2011 |
| 7862133 | Liquid discharging method and liquid discharging apparatus A liquid discharging head is appropriately driven to effectively prevent a satellite from being generated irrespective of conditions such as a property of a discharge liquid or a head structure. The liquid discharging head is driven using volume variation in a manne... | 01/04/2011 |
| 7850264 | 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... | 12/14/2010 |
| 7850265 | 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 ... | 12/14/2010 |
| 7841678 | 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... | 11/30/2010 |
| 7828401 | Recording apparatus A recording apparatus including: (a) recording heads for performing a dot recording operation using a recording material that is ejected by activation of actuators; (b) a main circuit for outputting drive waveform signal sets each of which controls ejection of the r... | 11/09/2010 |
| 7823997 | Droplet ejection device A droplet ejection device includes a carriage capable of moving back and forth, a droplet ejection head which is mounted on the carriage and has a plurality of nozzles, and a droplet receiver positioned capable of receiving liquid ejected from the nozzles. The nozzl... | 11/02/2010 |
| 7819491 | Ink jet head driver An ink jet head driver including a control section that calculates a first head passing time required for the paper sheet from the leading edge to the tailing edge to pass the ink jet head, drives the piezoelectric element of the ink jet head for a predetermined tim... | 10/26/2010 |
| 7815271 | Recording medium driving device and recording medium driving method A recording medium driving device includes a recording and/or playback unit for performing at least one of recording of a data signal on the recoding surface of a recording medium, and playback of a data signal from the recording surface, a printing unit for printin... | 10/19/2010 |
| 7806495 | Head substrate, printhead, head cartridge, and printing apparatus This invention relates to a head substrate capable of reducing power loss and achieving a high integration degree or downsizing at low cost. The head substrate includes at least plural printing elements, plural driving elements which drive the plural printing elemen... | 10/05/2010 |
| 7806496 | Printhead substrate, inkjet printhead, and inkjet printing apparatus A detector circuit for detecting a malfunction of a circuit due to a low third power supply voltage that has the same amplitude and potential as an input signal is provided. Based on an output signal of the detector circuit, whether an output of a second power suppl... | 10/05/2010 |
| 7802862 | Printhead having sequenced nozzle firing on integrated circuit A printhead is provided having an integrated circuit having at least one row including a plurality of sets of n adjacent nozzles, each of the nozzles being configured to expel ink in response to fire signals, and a controller for supplying the fire signals to the in... | 09/28/2010 |
| 7798588 | Liquid ejecting apparatus and liquid ejecting method A liquid ejecting apparatus includes a plurality of nozzles that eject a liquid, a sensor that detects a defective nozzle in which defective ejection occurs when the liquid is to be ejected, a recovery mechanism that recovers the defective nozzle to its normal state... | 09/21/2010 |
| 7794033 | Printing system for triggering the print head of a printer cartridge A printing system triggers the print head of a conventional printer cartridge configured per se for water-based printing ink. The printer cartridge print head includes ink ejector elements arranged in a matrix and a heating element of an ink ejector element that is ... | 09/14/2010 |
| 7775614 | Ink jet recording apparatus and method of controlling the same for complementary recording The present invention provides complementary recording in that when a defective nozzle is generated, recording is performed by other normal nozzles. According to the present invention, a mask pattern used for multipath recording, which completes an image by multiple... | 08/17/2010 |
| 7770988 | 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... | 08/10/2010 |
| 7770989 | 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... | 08/10/2010 |
| 7762639 | Inkjet printer having printhead with multiple controllers An inkjet printer is provided having a printhead having inkjet nozzles and a plurality of controllers configured to process print data for printing and to output the processed data to the printhead. The plurality of controllers are connected to a common input of the... | 07/27/2010 |
| 7753463 | Processing of images for high volume pagewidth printing An image processing apparatus for a printer (10) includes a print engine controller (48) that is configured to receive image data in an image storage format. The print engine controller includes data processing circuitry that is configured to process t... | 07/13/2010 |
| 7740333 | Printhead, head cartridge, and printing apparatus using restriction circuit for restricting input of signals A printhead tolerant of switching noise that occurs when concurrently driving plural printing elements, a head cartridge using the printhead, and a printing apparatus can be provided. The printhead includes plural printing elements and plural driving elements for dr... | 06/22/2010 |
| 7712854 | Piezoelectric fluid injection devices and driving voltage calibration methods thereof A piezoelectric fluid injection device and a driving voltage calibration method thereof. The piezoelectric fluid injection device includes at least one inkjet printhead comprising a plurality of nozzles, at least one voltage control element connecting to the inkjet ... | 05/11/2010 |
| 7712855 | Universal inkjet printer device and methods A signal converter that may perform functions to enable a thermally based technology to be used with a piezo-electric printhead. The signal converter and piezo-electric printhead may optionally be used in conjunction with a chassis assembly having an adjustable vert... | 05/11/2010 |
| 7708362 | Printhead error compensation A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a seco... | 05/04/2010 |
| 7703870 | Liquid ejection apparatus A liquid ejection apparatus includes: a liquid ejection head (26) having a nozzle (21) with an inner diameter of 15 μm or less to eject droplets of charged solution onto a substrate; an ejection voltage supply (25) to apply an ejection voltage ... | 04/27/2010 |
| 7690742 | Inkjet printer head driving apparatus and control method thereof An inkjet printer head driving apparatus and a control method thereof include a switching unit turning on and off each of heating elements to heat and eject ink through nozzles, a level shift unit having a level converter converting to a predetermined potential leve... | 04/06/2010 |
| 7686407 | Printing method, printing system, and storage medium having program recorded thereon The printing method includes the following steps of: preparing a printing apparatus that includes an element that is driven in order to form a dot, a first drive signal generation section that generates drive signals for driving the element, and a second drive signa... | 03/30/2010 |
| 7686408 | Electrically-chargeable element control device, liquid ejection device, and method for controlling electrically-chargeable element An electrically-chargeable element control device includes a plurality of coils, a switch circuit, and a controller. One end of each of a plurality of the coils is connected to a power supply. The switch circuit is connected to an other end of each of a plurality of... | 03/30/2010 |
| 7686409 | Driver device and print head A print head has m driver devices 1 that are fed with a supply voltage VDD and that control the driving of resistive elements acting as heaters and a regulator 2 that is fed with a supply voltage VH higher than the supply voltage VDD and that converts ... | 03/30/2010 |
