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1. 发明授权

US12053980B2 Printer media low sensing using motor current drawn when feeding 有权
公开(公告)号：US12053980B2
公开(公告)日：2024-08-06
申请号：US17818849
申请日：2022-08-10
申请人： Honeywell International Inc.
发明人： Phek Thong Lee , Cheng Khoon Ng , Sze Ping Ching
IPC分类号： B41J2/045 , B41J11/00 , B41J11/04
CPC分类号： B41J2/0452 , B41J2/04555 , B41J11/0075 , B41J11/04
摘要： Printer circuits and components for detecting a media low condition on a printer are provided. The printer circuit comprises a motor coupled to a platen roller, a current sense resistor coupled in series with the motor, a current measuring circuit comprising an operational amplifier circuit configured to receive input voltage and output voltage of the current sense resistor, generate a differential voltage based at least in part on the input voltage and the output voltage, and convert the differential voltage to a current, and an analog-to-digital converter and control mechanism configured to receive the current from the current measuring circuit and control operation of the motor based at least in part on the current.

2. 发明授权

US11840060B2 Information processing apparatus, information processing method, and storage medium 有权
公开(公告)号：US11840060B2
公开(公告)日：2023-12-12
申请号：US17674889
申请日：2022-02-18
申请人： CANON KABUSHIKI KAISHA
发明人： Ryosuke Otani
IPC分类号： B41J2/045 , B41J2/21 , G06K15/10 , B41J2/155
CPC分类号： B41J2/2132 , B41J2/0452 , B41J2/04525 , B41J2/04536 , B41J2/04545 , G06K15/107 , B41J2/155
摘要： In the technology of the present disclosure, multiple nozzles included in a printing head are stably driven while disparity in the usage frequency of each nozzle is suppressed. The dot counter scans the digital halftone data in the X direction and performs accumulation-counting on the pixel value Ixy (the number of printing dots) of each pixel for each address y with the accumulation counter CntCum(y). The signal value Gxy of the corresponding pixel address (x, y) is obtained from the division pattern memory unit. The nozzle selection unit selects the nozzle to be used for forming a printing dot, based on the counted values of the accumulation counter CntCum and the signal value Gxy of the division pattern. Then, the address n of the nozzle memory corresponding to the selected nozzle to form a printing dot is determined.

3. 发明授权

US10864720B2 Drive circuit and liquid ejecting apparatus 有权
公开(公告)号：US10864720B2
公开(公告)日：2020-12-15
申请号：US16751252
申请日：2020-01-24
申请人： SEIKO EPSON CORPORATION
发明人： Hidehiko Yajima , Tetsuo Takagi
IPC分类号： B41J2/045 , G01R31/317
CPC分类号： B41J2/04541 , B41J2/0451 , B41J2/0452 , B41J2/04581 , G01R31/31715
摘要： There is a provided a drive circuit in which a first drive signal output circuit includes a first control circuit that controls an output of a first drive signal, and a first abnormality detection circuit that detects an abnormality in a first drive signal output circuit, a second drive signal output circuit includes a second control circuit that controls an output of a second drive signal, and a second abnormality detection circuit that detects an abnormality in a second drive signal output circuit, the first drive signal output circuit transmits an occurrence of abnormality to the second drive signal output circuit, when the first abnormality detection circuit detects the abnormality, and the second drive signal output circuit transmits an occurrence of abnormality to the first drive signal output circuit, when the second abnormality detection circuit detects the abnormality.

4. 发明申请

US20180229496A1 INKJET HEAD AND DRIVING METHOD BY THE SAME 审中-公开
公开(公告)号：US20180229496A1
公开(公告)日：2018-08-16
申请号：US15883118
申请日：2018-01-30
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Noriyuki Kikuchi
IPC分类号： B41J2/045 , B41J2/14 , B41J2/16
CPC分类号： B41J2/0452 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/14201 , B41J2/14209 , B41J2/1433 , B41J2/1618 , B41J2/1623 , B41J2002/14491 , H01L41/042 , H01L41/0973 , H01L41/1876 , H01L41/312
摘要： In accordance with an embodiment, an inkjet head comprises a pressure chamber, an actuator, a nozzle plate, and a head drive circuit. The pressure chamber accommodates ink. The actuator is arranged in correspondence with the pressure chamber. The nozzle plate has a nozzle communicating with the pressure chamber. The head drive circuit applies a drive pulse signal, which includes a first pulse for returning a volume of the pressure chamber after expansion, a second pulse for returning the volume of the pressure chamber after contraction, and a third pulse for returning the volume of the pressure chamber after contraction, to the actuator in such a manner that the second pulse is applied without providing a standby time before the first pulse, and the third pulse is applied without providing the standby time after the first pulse.

5. 发明授权

US09969157B1 Fluidic die 有权
公开(公告)号：US09969157B1
公开(公告)日：2018-05-15
申请号：US15665560
申请日：2017-08-01
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Scott A. Linn , George H. Corrigan, III , Michael W. Cumbie
IPC分类号： B41J2/045 , B41J2/14 , B41J2/21
CPC分类号： B41J2/04573 , B41J2/0452 , B41J2/14016 , B41J2/14024 , B41J2/14129 , B41J2/14201 , B41J2/2125 , B41J2002/14362
摘要： A fluidic die may include a number of actuators. The number of actuators form a number of primitives. The fluidic die may include a digital-to-analog converter (DAC) to drive a number of the delay circuits. The delay circuits delay a number of activation pulses that activate the actuators associated with the primitives to reduce peak power demands of the fluidic die. A number of delay circuits may be coupled to each primitive.

6. 发明授权

US09831868B2 Driving circuit for driving a piezoelectric element 有权
公开(公告)号：US09831868B2
公开(公告)日：2017-11-28
申请号：US15150690
申请日：2016-05-10
申请人： Seiko Epson Corporation
发明人： Shuji Otsuka , Tadashi Kiyuna , Toshifumi Asanuma
IPC分类号： B41J2/045 , H03K17/687 , B41J2/14 , H03K19/0175
CPC分类号： H03K17/6871 , B41J2/0452 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596 , B41J2/14201 , H03K19/017509
摘要： A drive signal generator includes a drive signal generator that generates a drive signal for driving a capacitive load. In the drive signal generator, a set of a first MOSFET and a second MOSFET which are electrically connected in series between a wire of a high potential and a wire of a low potential is arranged in plurality in series. A part or all of the first MOSFETs and the second MOSFETs in the plurality of sets have different sizes from each other.

7. 发明授权

US09385296B2 Driving device for capacitance type actuator and driving device for ink jet head 有权
标题翻译：用于电容式致动器的驱动装置和用于喷墨头的驱动装置
公开(公告)号：US09385296B2
公开(公告)日：2016-07-05
申请号：US14278166
申请日：2014-05-15
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Noboru Nitta
IPC分类号： H02J7/00 , H01L41/04 , B41J2/045
CPC分类号： H01L41/042 , B41J2/04506 , B41J2/0452 , B41J2/04541 , B41J2/04548 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2202/10
摘要： An actuator is sequentially charged with output voltage “E/2” of a voltage source and output voltage “E” of a voltage source. After the charging, “Q/2” of electric charge “Q” stored in the actuator is discharged on a path returning to the voltage source. Subsequent to the discharging, the remaining all electric charge “Q/2” stored in the actuator is discharged on a closed circuit.
摘要翻译：致动器依次充满电压源的输出电压“E / 2”和电压源的输出电压“E”。在充电之后，存储在致动器中的电荷“Q”的“Q / 2”在返回到电压源的路径上放电。在放电之后，存储在致动器中的剩余全部电荷“Q / 2”在闭合电路上放电。

8. 发明授权

US09028031B2 Peak energy reduction printhead system 有权
标题翻译：峰值能量减少打印头系统
公开(公告)号：US09028031B2
公开(公告)日：2015-05-12
申请号：US14374807
申请日：2012-01-31
申请人： Garrett E. Clark , Chris Bakker , Eric T. Martin , Vincent Gerard Heesen , Mark H. Mackenzie
发明人： Garrett E. Clark , Chris Bakker , Eric T. Martin , Vincent Gerard Heesen , Mark H. Mackenzie
IPC分类号： B41J2/15 , B41J2/045 , B41J2/21
CPC分类号： B41J2/0457 , B41J2/0452 , B41J2/04543 , B41J2/04586 , B41J2/2054 , B41J2/2132
摘要： A printhead system to reduce peak energy usage may include a printhead including a plurality of primitives including nozzles. A printhead control module may control the printhead to increase printed pixel resolution and to reduce peak pixel fill density for print media. The printhead control module may further control the printhead such that all the nozzles with a same address generally disposed in a column do not fire at the same time.
摘要翻译：用于减少峰值能量使用的打印头系统可以包括包括多个包括喷嘴的图元的打印头。打印头控制模块可以控制打印头以增加打印像素分辨率并减少打印介质的峰值像素填充密度。打印头控制模块可以进一步控制打印头，使得具有通常设置在列中的相同地址的所有喷嘴不会同时触发。

9. 发明申请

US20150035883A1 LIQUID EJECTING APPARATUS, AND CONTROL METHOD FOR LIQUID EJECTING APPARATUS 有权
标题翻译：液体喷射装置和液体喷射装置的控制方法
公开(公告)号：US20150035883A1
公开(公告)日：2015-02-05
申请号：US14337913
申请日：2014-07-22
申请人： SEIKO EPSON CORPORATION
发明人： Shunya FUKUDA
IPC分类号： B41J2/045
CPC分类号： B41J2/04541 , B41J2/0452 , B41J2/04581 , B41J2/04588
摘要： In a recording suspension period when a recording head is accelerated or decelerated in a non-recording region on a recording medium, or stops moving in the course of performing a printing process (printing job), a second driving signal is generated from a driving signal generation portion. Second vibration driving pulses of the second driving signal are applied to all piezoelectric elements, so that a vibration operation is performed without ejecting the liquid. Since a second reference potential of the second driving signal is set to be lower than a first reference potential of a first driving signal generated in a recording period as much as possible, a general potential (driving voltage) of the second driving signal is reduced, and reduce power consumption in the recording suspension period is reduced. As a result, it is possible to contribute to the power consumption saving of a printer.
摘要翻译：在记录头在记录介质上的非记录区域中被加速或减速的记录暂停期间或在执行打印处理（打印作业）的过程中停止移动时，从驱动信号产生第二驱动信号生成部分。将第二驱动信号的第二振动驱动脉冲施加到所有压电元件，从而进行振动操作而不喷射液体。由于第二驱动信号的第二参考电位被设置为低于在记录周期中产生的第一驱动信号的第一参考电位，所以第二驱动信号的一般电位（驱动电压）减小，并降低了记录暂停期间的功耗。结果，可以有助于打印机的功耗节省。

10. 发明申请

US20150029251A1 FLUID EJECTION DEVICE AND FLUID EJECTION PRINTER WITH A POWER AMPLIFIER STOPPING SECTION 有权
标题翻译：具有功率放大器停止部分的流体喷射装置和流体喷射打印机
公开(公告)号：US20150029251A1
公开(公告)日：2015-01-29
申请号：US14512302
申请日：2014-10-10
申请人： SEIKO EPSON CORPORATION
发明人： Kunio TABATA , Atsushi OSHIMA , Noritaka IDE , Shinichi MIYAZAKI , Hiroyuki YOSHINO
IPC分类号： B41J2/045
CPC分类号： B41J2/04588 , B41J2/0452 , B41J2/04541 , B41J2/04548 , B41J2/0457 , B41J2/04581 , B41J2/04593 , B41J2/04596
摘要： A fluid ejection device includes: a modulator adapted to pulse-modulate a drive waveform signal forming a basis of a drive signal of an actuator to obtain a modulated signal; a digital power amplifier circuit adapted to power-amplify the modulated signal to obtain a power-amplified modulated signal; a low pass filter adapted to smooth the power-amplified modulated signal to obtain the drive signal; and a power amplification stopping section operating when holding a voltage of the actuator constant.
摘要翻译：流体喷射装置包括：调制器，适于脉冲调制形成致动器的驱动信号的基础的驱动波形信号以获得调制信号; 数字功率放大器电路，其适于对所述调制信号进行功率放大以获得功率放大调制信号; 低通滤波器，用于平滑功率放大调制信号以获得驱动信号; 以及在保持致动器的电压恒定时工作的功率放大停止部。

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