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| Application No. | Application Title | Issue Date |
| 20120127225 | LIQUID EJECTION APPARATUS AND CONTROL METHOD THEREOF A drive signal generating circuit of the liquid ejection apparatus may output a second drive signal including a first unit signal including a set of two ejection drive pulses, and a fine vibration drive pulse, and a second unit signal including a set of two ejection dri... | 05/24/2012 |
| 20120105526 | Using light-scattering drop detector to determine turn-on-energy for fluid-ejection nozzle For each energy value of a number of energy values, the energy value is applied to cause a fluid-ejection nozzle to eject a fluid drop. After the energy value has been applied to the fluid-ejection nozzle, a velocity of the fluid drop is determined using a light-scatter... | 05/03/2012 |
| 20120105527 | INKJET PRINTER A inkjet printer including a plurality of heads installed in a staggered arrangement, and a relay board for receiving image data, a control signal conforming to each head, and a timing signal for determining timed intervals to emit ink particles from the control unit of... | 05/03/2012 |
| 20120081430 | LIQUID EJECTING APPARATUS AND CONTROLLING METHOD THEREOF Two ink droplets are coupled in the air before landing on a recording paper sheet. Referring to most closely located two nozzle rows, a driving signal including a first driving pulse and a second driving pulse is provided to an actuator corresponding to a nozzle in one ... | 04/05/2012 |
| 20120081431 | LIQUID EJECTING APPARATUS A piezoelectric vibrator varies the pressure in a pressure chamber in accordance with a drive signal, whereby ink contained in the pressure chamber is ejected from a nozzle. The drive signal includes a slight-vibration pulse used to change the pressure in the pressure c... | 04/05/2012 |
| 20120081429 | METHOD OF PRINTING AT DOT DENSITY EXCEEDING NOZZLE DENSITY IN STATIONARY PAGEWIDTH PRINTHEAD A method of printing at a dot density exceeding a nozzle density in a stationary pagewidth printhead. The method includes the steps of: (i) advancing a print medium transversely past the stationary printhead at a rate of one line per one line-time; and (ii) firing dropl... | 04/05/2012 |
| 20120069070 | DRIVING APPARATUS AND DRIVING METHOD FOR INKJET HEAD According to one embodiment, a driving apparatus configured to drive an inkjet head configured to cause plural nozzles to discharge ink according to deformation of an electromechanical energy converting element includes: a signal generating unit configured to generate a... | 03/22/2012 |
| 20120050363 | Inkjet recording apparatus and method An inkjet recording apparatus includes: a paper conveying device which conveys paper; a line-type inkjet head which performs image formation on the paper by ejecting ink droplets to the paper conveyed by the paper conveying device; a paper conveyance speed measuring dev... | 03/01/2012 |
| 20120044288 | RECORDING APPARATUS AND RECORDING METHOD A recording apparatus drives a recording element to perform recording on a recording medium. The recording apparatus includes: a drive waveform data acquisition device configured to acquire drive waveform data which contain waveform value information for a plurality of ... | 02/23/2012 |
| 20120044289 | Drop Mass Calibration Method Based on Drop Positional Feedback A method compensates for changes in drop mass of drops ejected by ink jets in a printhead of an ink jet imaging device. The method comprises identifying an average drop placement position for a printhead with reference to ink drop positions on an image receiving member ... | 02/23/2012 |
| 20120038695 | NOZZLE ASSEMBLY 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, and control logic for outputting a control pulse in response to input data. The nozzle assembly a... | 02/16/2012 |
| 20120033005 | METHOD FOR SETTING UP DRIVE SIGNAL A method for setting up a condition for a drive signal in a liquid ejection head that includes a plurality of linearly-arranged nozzles and driving elements provided for each of the nozzles, includes: calculating an average value or a median value of ejection rates for ... | 02/09/2012 |
| 20120019578 | CROSSTALK REDUCTION IN PIEZO PRINTHEAD Crosstalk in a piezo printhead is reduced by storing a coefficient that expresses an amount of crosstalk between a first nozzle and an adjacent nozzle. A drive waveform voltage is pre-biased using the coefficient, and the pre-biased waveform is applied to a piezoelectri... | 01/26/2012 |
| 20120001970 | DROPLET EJECTION DEVICE AND DROPLET EJECTION METHOD A droplet ejection device in which cavitation is prevented and droplets are favorably ejected includes a nozzle, a liquid chamber communicating with the nozzle and arranged to house a material solution supplied through a liquid supply channel, a piezoelectric vibrator p... | 01/05/2012 |
| 20120001971 | INKJET RECORDING APPARATUS AND CONTROL METHOD OF THE INKJET RECORDING APPARATUS An inkjet recording apparatus includes a heating unit configured to produce thermal energy for discharging ink, and two electrodes which electrically connect with each other through the ink. Voltage is applied between the two electrodes, and a current value flowing thro... | 01/05/2012 |
| 20110316914 | BODY DIODE FORWARD CONDUCTION PREVENTION A device has an output circuit arranged to receive a voltage pulse, a body diode associated with the output circuit, and a detection circuit electrically coupled to the voltage pulse and the output circuit, such that when the voltage pulse transitions from high to low, ... | 12/29/2011 |
| 20110316915 | LIQUID EJECTING APPARATUS AND METHOD OF CONTROLLING SAME The driving signal generation circuit generates a first driving signal which includes a first ejection driving pulse in a unit period and a second driving signal which includes a second ejection driving pulse which is generated before the first ejection driving pulse in... | 12/29/2011 |
| 20110316916 | LIQUID EJECTING APPARATUS AND METHOD OF CONTROLLING SAME A liquid ejecting apparatus includes a recording head that has a first column of nozzles, in which nozzles that eject dye ink are provided in line in a sub-scanning direction intersecting a main scanning direction of the recording head and recording paper, and a second ... | 12/29/2011 |
| 20110310147 | LIQUID EJECTING DEVICE CAPABLE OF REDUCING VOLTAGE APPLICATION PERIOD AND PREVENTING LEAKAGE OF LIQUID A driving-signal applying section maintains a first driving signal at a first low voltage prior to and subsequent to a first voltage application period during which voltage is applied to a first active potion based on image data for one recording medium, maintains a sec... | 12/22/2011 |
| 20110310148 | 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 ma... | 12/22/2011 |
| 20110292107 | PIEZOELECTRIC ACTUATOR APPARATUS AND INK-JET PRINTER A piezoelectric actuator apparatus which is connectable to a power supply includes: a piezoelectric actuator which is provided with a plurality of piezoelectric elements each of which is sandwiched by two types of electrodes; a drive device which is connected to the pow... | 12/01/2011 |
| 20110292108 | INK JET HEAD AND METHOD OF DRIVING THE SAME According to one embodiment, an ink jet head includes pressure chambers filled with liquid, nozzles discharging the liquid that is in the pressure chambers, actuators changing the capacity of the pressure chambers, and a processor. The processor repeatedly outputs a wav... | 12/01/2011 |
| 20110285772 | LIQUID EJECTION DEVICE AND LIQUID TESTING METHOD A liquid ejection device includes a plurality of nozzles, a plurality of piezoelectric elements, a drive signal generating portion and a common ejection testing portion. The nozzles are arranged to eject a liquid. The piezoelectric elements are provided in respective co... | 11/24/2011 |
| 20110285773 | LIQUID EJECTION DEVICE AND LIQUID TESTING METHOD A liquid ejection device includes a plurality of nozzles, a plurality of piezoelectric elements, a drive signal generating portion, a selection portion and an ejection testing portion. The nozzles are arranged to eject a liquid. The piezoelectric elements are provided i... | 11/24/2011 |
| 20110279500 | INKJET PRINTER AND IMAGE RECORDING METHOD In a head part of inkjet printer, a leading droplet and a following droplet are ejected from an outlet by inputting one driving signal, and the leading droplet and the following droplet land onto a recording paper. At this time, a waveform of the driving signal is set s... | 11/17/2011 |
| 20110279501 | INKJET PRINTER AND IMAGE RECORDING METHOD In recording an image by an inkjet printer, when not forming a dot on a recording paper, non-ejection operation of droplet is performed in a head part by a non-ejection pulse (P21) which indicates the non-ejection operation and which is included in each driving s... | 11/17/2011 |
| 20110273498 | DRIVING DEVICE, RECORDING HEAD, AND APPARATUS USING THE SAME According to an aspect of the present invention, a high-resolution, small-size, low-cost driving device includes a clock signal generating unit configured to receive a first clock signal of a differential signaling system and generate a second clock signal, an input uni... | 11/10/2011 |
| 20110273499 | METHOD FOR DETECTING ADJUSTMENT VALUE OF FLUID EJECTION DEVICE, AND FLUID EJECTION DEVICE An adjustment method is a method for adjusting a fluid ejection device having first and second heads with the first head disposed on an upstream side of the second head in a feed direction in which a medium is conveyed, the second head forming dot rows of a fluid betwee... | 11/10/2011 |
| 20110273501 | LIQUID JET APPARATUS AND PRINTING APPARATUS A liquid jet apparatus according to the present invention is a liquid jet apparatus including a plurality of nozzles, an actuator provided for each nozzle and connected to the respective nozzle, a drive waveform signal generation unit that generates a drive pulse, and a... | 11/10/2011 |
| 20110273500 | LIQUID EJECTING APPARATUS A liquid ejecting apparatus includes a liquid ejecting head with a plurality of nozzle groups each having a plurality of nozzles. Each nozzle ejects a liquid onto a landing target by an ejection pulse applied to the liquid. A movement unit relatively moves the liquid ej... | 11/10/2011 |
| 20110261098 | LIQUID EJECTING APPARATUS A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a first level-data setting unit for setting a selected first level data from... | 10/27/2011 |
| 20110261097 | DRIVER CIRCUIT FOR DRIVING A PRINT HEAD OF AN INKJET PRINTER An inkjet printing apparatus includes a print head having an ink duct, a piezoelectric element operatively coupled to the ink duct, and a control device for controlling an ink drop ejection from the ink duct by actuation of the piezoelectric element. The control device ... | 10/27/2011 |
| 20110254887 | CAPACITIVE LOAD DRIVING DEVICE AND LIQUID JET APPARATUS A capacitive load driving device includes a drive waveform generator that generates a drive waveform signal, a subtractor that outputs a difference signal between the drive waveform signal and a feedback signal, a modulator that pulse-modulates the difference signal to ... | 10/20/2011 |
| 20110249050 | Liquid Ejecting Apparatus and Control Method of Liquid Ejecting Apparatus Liquid ejecting apparatus and related methods of operation are disclosed. A liquid ejecting apparatus includes an ejecting head having liquid-ejecting nozzles, a platen disposed to support a recording medium and face the ejecting head, a movement section that moves the ... | 10/13/2011 |
| 20110242170 | METHOD FOR OPERATING CONTINUOUS PRINTERS A method for operating a continuous inkjet printer, the method includes forming drops with a drop formation period being the time between consecutive drop formations; creating a portion of the drops that strike the print media for forming print drops; creating a portion... | 10/06/2011 |
| 20110242171 | LIQUID EJECTING APPARATUS An ejection pulse DP sequentially and continuously includes an expansion phase p1 where a voltage changes so as to cause a pressure chamber to expand, an expansion hold phase p2 where a potential at an end edge of the expansion phase is maintained for a pr... | 10/06/2011 |
| 20110242172 | CAPACITIVE LOAD DRIVING CIRCUIT, INK JET PRINTER, AND FLUID EJECTING APPARATUS A capacitive load driving circuit includes: a drive waveform signal generator that generates a drive waveform signal; a subtractor that outputs a differential signal between the drive waveform signal and a feedback signal; a modulator that pulse-modulates the differenti... | 10/06/2011 |
| 20110242169 | CONTINUOUS PRINTER WITH ACTUATOR ACTIVATION WAVEFORM A method for operating a drop generating device for selective formation of large-volume droplets and small-volume droplets, said method includes the steps of defining a small-drop waveform at least a pulse to form a small volume drop; defining a large-drop waveform that... | 10/06/2011 |
| 20110234668 | Jetting Device with Reduced Crosstalk A printing device for jetting a liquid includes a flow path body having a plurality of jetting flow paths, a liquid in the plurality of jetting flow paths, a piezoelectric actuator associated with each jetting flow path, a feed substrate having a plurality of fluid inle... | 09/29/2011 |
| 20110234669 | FLUID EJECTION DEVICE A fluid ejection device includes a plurality of address lines and a fire line for communicating a fire signal. The device also includes a plurality of nozzle circuits coupled to the fire line and the plurality of address lines. Each nozzle circuit is configured, when en... | 09/29/2011 |
