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1344 条记录 (耗时 0.027 秒)

    MULTIPLEXED MULTILEVEL CONVERTER AMPLIFIER
    4.
    发明公开
    MULTIPLEXED MULTILEVEL CONVERTER AMPLIFIER 审中-公开

    公开(公告)号：EP3400137A1

    公开(公告)日：2018-11-14

    申请号：EP16884177.3

    申请日：2016-12-16

    申请人： Apex Microtechnology, Inc.

    发明人： VASIC, Miroslav ,  GARCIA, Oscar ,  ALOU, Pedro ,  OLIVER, Jesus ,  COBOS, Jose A. ,  BOERE, Eric J.

    IPC分类号： B41J2/045

    CPC分类号： B41J2/04548 ,  B41J2/04541 ,  B41J2/0455 ,  B41J2/04581 ,  H02M7/487 ,  H02M2007/4835 ,  H03F3/2173 ,  H03H19/004 ,  H03M2201/17

    摘要： A multiplexed multilevel converter amplifier. The converter is configured to generate a converter voltage. The converter voltage varies among a plurality of voltage levels. A multiplexer is comprised of at least four switches configured to generate a positive output voltage and a negative output voltage according to a configuration of the at least four switches. The positive output voltage varies between the converter voltage and a positive supply rail and the negative output voltage varies between the converter voltage and a negative supply rail. An amplifier is supplied by the multiplexer, and the amplifier generates an output voltage that varies between the positive output voltage and the negative output voltage. A control module is configured to control the configuration of the at least four switches of the multiplexer and the plurality of voltage levels of the converter voltage, such that the converter voltage is synchronized with the output voltage.

    HEAD UNIT CONTROL CIRCUIT
    5.
    发明公开
    HEAD UNIT CONTROL CIRCUIT 审中-公开

    公开(公告)号：EP3393810A1

    公开(公告)日：2018-10-31

    申请号：EP16878954.3

    申请日：2016-12-22

    申请人： Seiko Epson Corporation

    发明人： YAMADA, Tomonori ,  ENDO, Hironori ,  MATSUYAMA, Toru

    IPC分类号： B41J2/01 ,  B41J2/14 ,  B41J29/00

    CPC分类号： B41J2/01 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04591 ,  B41J2/14 ,  B41J29/00 ,  B41J29/38 ,  B41J2002/14491

    摘要： A connection cable that electrically connects a head unit and a head unit control circuit, the head unit including: an ejecting section that includes a piezoelectric element, and can eject a liquid corresponding to displacement of the piezoelectric element, the piezoelectric element being displaced corresponding to a change in potential of a drive signal when the drive signal has been supplied to the piezoelectric element; a determination circuit that determines whether or not the piezoelectric element has a predetermined electrical storage capability; and an ejection limit circuit that stops the supply of the drive signal to the piezoelectric element and limits the ejection of the liquid from the ejecting section when a result of the determination is negative, the head unit control circuit controlling the head unit, and being provided outside the head unit, the connection cable including: a first connection line that supplies an instruction signal to the head unit, the instruction signal being generated by the head unit control circuit, and instructing the head unit to execute the determination; a second connection line that supplies the drive signal to the head unit, the drive signal being generated by the head unit control circuit; and a third connection line that is provided between the first connection line and the second connection line, the third connection line being smaller in potential change width than the second connection line when the ejecting section ejects the liquid.

    LIQUID DISCHARGING APPARATUS AND CIRCUIT SUBSTRATE
    7.
    发明公开
    LIQUID DISCHARGING APPARATUS AND CIRCUIT SUBSTRATE 审中-公开

    公开(公告)号：EP3378648A1

    公开(公告)日：2018-09-26

    申请号：EP18160693.0

    申请日：2018-03-08

    申请人： Seiko Epson Corporation

    发明人： ITO, Sukehiro ,  ASAKAWA, Masashi ,  HIRAMATSU, Kazunori

    IPC分类号： B41J2/045

    CPC分类号： B41J2/04515 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/15 ,  B41J29/377 ,  H05K1/0203 ,  H05K2201/066

    摘要： A liquid discharging apparatus includes a print head that has a driving element and discharges a liquid when a drive signal is applied and the driving element is driven, a drive signal generation circuit that generates the drive signal based on a drive signal generation control signal for controlling generation of the drive signal, and a drive circuit substrate on which the drive signal generation circuit is provided. The drive circuit substrate has an input connector that inputs the drive signal generation control signal into the drive circuit substrate and an output connector that outputs the drive signal from the drive circuit substrate. A distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the input connector. The distance between the input connector and the output connector is shorter than a distance between the drive signal generation circuit and the output connector.

    Printhead control
    8.
    发明授权
    Printhead control 有权

    公开(公告)号：EP2666636B1

    公开(公告)日：2018-08-08

    申请号：EP12169098.6

    申请日：2012-05-23

    申请人： Tonejet Limited

    发明人： Clippingdale, Andrew John ,  Bacon, Robin Timothy

    IPC分类号： B41J2/15 ,  B41J2/155 ,  B41J2/06

    CPC分类号： B41J2/04541 ,  B41J2/04593 ,  B41J2/06 ,  B41J2/15 ,  B41J2/155 ,  B41J2202/20

    摘要： A method of printing a two-dimensional bit-mapped image having a number of pixels per row for printing is disclosed. The method and apparatus use either a plurality of overlapping printheads (300) or a printhead or plurality of printheads indexed through overlapping positions. The or each printhead has a row of ejection channels (301), each of which has associated ejection electrodes to which a voltage is applied to cause particulate concentrations to be formed from within a body of printing fluid. In order to cause volumes of charged particulate concentrations of one of a number of predetermined volume sizes to be ejected as printed droplets from selected ejection channels of the overlapping printheads, voltage pulses (V E ) of respective predetermined amplitude and duration, as determined by respective image pixel bit values, are applied to the electrodes of the selected ejection channels. For each row of the image, the values of the voltage pulses to be applied to the overlapping printheads to form pixels printed by overlapped ejection channels are adjusted in dependence on the position of the pixel within an overlapped region of the printheads and in dependence on the predetermined volume size of the pixel.

    FLUID EJECTION DEVICE
    9.
    发明公开
    FLUID EJECTION DEVICE 审中-公开

    公开(公告)号：EP3318407A3

    公开(公告)日：2018-08-01

    申请号：EP17207536.8

    申请日：2005-04-06

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： BANJAMIN, Trudy L. ,  AXTELL, James P.

    IPC分类号： B41J2/05

    CPC分类号： B41J2/0458 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/0455

    摘要： A fluid ejection device comprising first (1004a, 1004b, 1004c) and second sets of firing groups (1004d, 1004e,1004f) is provided. First and second address generators (1000, 1002) for generating addresses (~A1-~A7 and ~B1-~B7) for the respective first and second firing groups (1004a, 1004b, 1004c,1004d, 1004e,1004f) are provided. The address generators (1000, 1002) are connected to control (1010) and select lines (1008a-1008e) for receiving the same control (CSYNC) and select pulses (SEL1 to SEL6), wherein the first and second address generators (1000, 1002) respond within a first series of select pulses (SEL) to a control pulse (CSYNC) coincident with a select pulse on a respective first or second select line to set a direction of addressing. The address generators (1000, 1002) respond to control pulses coincident with other select pulses in a second series of select pulses to initiate firing groups addressing and the address generators generate addresses for the firing groups within a third series of select pulses.

    AN IMPROVED ACTUATOR AND METHOD OF DRIVING THEREOF
    10.
    发明授权
    AN IMPROVED ACTUATOR AND METHOD OF DRIVING THEREOF 有权

    公开(公告)号：EP3027413B1

    公开(公告)日：2018-07-18

    申请号：EP14766817.2

    申请日：2014-07-31

    申请人： I.C. S.R.L.

    发明人： GUIDOTTI, GianMario ,  BARBANTI, Giovanni ,  FARETRA, Marco

    IPC分类号： B41J2/045 ,  B41J2/14

    CPC分类号： B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2202/05

    摘要： An actuator (1), for a printhead, wherein the actuator (1) comprises: an actuating element (2) an obturator assembly (3), engageable with the actuator element (2); wherein the actuating element (2) is operable to assume, depending on a drive signal applied thereto: a rest configuration, in which the obturator assembly (3) is at a first distance (X0) from a reference plane (A); a first deformed configuration, in which the obturator assembly (3) is at a second distance (X1) from the reference plane (A) greater than the first distance (X0), and a second deformed configuration, in which the obturator assembly (3) is in contact with the reference plane (A), wherein: a control module (4) is configured for regulating a drive signal to the actuating element (2) to cause the obturator assembly (3) to move between the rest configuration and the first deformed configuration during a first operating cycle, to reduce the effects of impact on the obturator assembly.