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    RESTRICTING REPLACEMENT OF COMPONENTS
    1.
    发明申请
    RESTRICTING REPLACEMENT OF COMPONENTS 审中-公开

    公开(公告)号：WO2021045757A1

    公开(公告)日：2021-03-11

    申请号：PCT/US2019/049657

    申请日：2019-09-05

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： PORTNOY, Vitaly ,  ASSENHEIMER, Michel

    IPC: G06F3/12

    Abstract: A computer-implemented method is disclosed. The method includes receiving a first indication that a first replaceable component of a print apparatus has been replaced; receiving, prior to any print impressions being made using the print apparatus since receiving the first indication, a second indication of an intention to replace a second replaceable component of the print apparatus; retrieving data regarding previous replacements of replaceable components of the print apparatus; determining, based on the retrieved data, whether or not replacement of the second replaceable component is to be restricted; and responsive to determining that replacement of the second replaceable component is to be restricted, restricting replacement of the second replaceable component. An apparatus and a machine-readable medium are also disclosed.

    ESTIMATING A NUMBER OF REMAINING IMPRESSIONS FOR A COMPONENT IN A PRINTING DEVICE
    2.
    发明申请
    ESTIMATING A NUMBER OF REMAINING IMPRESSIONS FOR A COMPONENT IN A PRINTING DEVICE 审中-公开

    公开(公告)号：WO2019190452A1

    公开(公告)日：2019-10-03

    申请号：PCT/US2018/024291

    申请日：2018-03-26

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： PORTNOY, Vitaly ,  ASSENHEIMER, Michel ,  LAVON, Amiran ,  PERLMUTTER, Pinni

    IPC: B41L39/02 ,  B41J29/20

    Abstract: An apparatus comprises a counter to determine a number of impressions already printed by a component in a printing device; and a controller, coupled to the counter, to use the number of impressions already printed and information relating to lifespan performance of the component in a printing device, to determine an estimated number of remaining impressions for the component, and to communicate the estimated number of remaining impressions to a user. The information relating to lifespan performance provides an indication of an estimated number of remaining impressions, for the number of impressions already printed, derived from statistical lifespan data selected in dependence on a lifespan threshold corresponding to the number of impressions already printed.

    DETECTING COLORANTS WITHIN CARRIER LIQUID
    4.
    发明申请
    DETECTING COLORANTS WITHIN CARRIER LIQUID 审中-公开
    检测载体液体中的色素

    公开(公告)号：WO2009110880A1

    公开(公告)日：2009-09-11

    申请号：PCT/US2008/055575

    申请日：2008-03-01

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  KELLA, Dror ,  SCHLUMM, Doron ,  GILAN, Ziv ,  ASSENHEIMER, Michel ,  FORGACS, Peter

    Inventor： KELLA, Dror ,  SCHLUMM, Doron ,  GILAN, Ziv ,  ASSENHEIMER, Michel ,  FORGACS, Peter

    IPC: B41J2/175 ,  B41J2/21 ,  B41J2/525

    CPC classification number: G03G15/0824 ,  G03G15/0827 ,  G03G15/0849 ,  G03G15/0855 ,  G03G15/105

    Abstract: A detecting apparatus is to at least assist in determining the concentration of colorants within a carrier liquid. The colorants at least absorb light and/or diverge light. The detecting apparatus includes one or more light sources to emit light, and one or more light detectors to detect light. The light sources and the light detectors are positionally configured in relation to one another such that both light directly emitted by the light sources and that has not been absorbed or diverged by the colorants, as well as light diverged by the colorants within the carrier liquid, are detected and/or determined. The concentration of colorants is determined based on the light directly emitted by the light sources that has not been absorbed or diverged by the colorants and/or on the light diverged by the colorants within the carrier liquid.

    Abstract translation: 检测装置至少有助于确定载液中着色剂的浓度。 着色剂至少吸收光和/或发散光。 检测装置包括用于发光的一个或多个光源和用于检测光的一个或多个光检测器。 光源和光检测器相对于彼此位置地配置，使得由光源直接发射并且未被着色剂吸收或分离的光以及由载体液体内的着色剂发散的光， 被检测和/或确定。 着色剂的浓度基于未被着色剂吸收或分散的光源和/或由载体液体内的着色剂发散的光直接发射的光来确定。

    PHOTORECEPTOR TEMPERATURE CONTROL
    5.
    发明申请
    PHOTORECEPTOR TEMPERATURE CONTROL 审中-公开

    公开(公告)号：WO2020242500A1

    公开(公告)日：2020-12-03

    申请号：PCT/US2019/034996

    申请日：2019-05-31

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： PORTNOY, Vitaly ,  MAISTER, Dmitry ,  YAACOBOV, Yossi ,  ASSENHEIMER, Michel ,  TANI, Brian Schmitz ,  BOAZ COSTA LEITE, Nailson

    IPC: G03G21/20

    Abstract: There is disclosed a device such as a printer or temperature control device for a printer. The device may comprise a photoreceptor. The device may further comprise a heat exchanger to regulate a temperature of the photoreceptor. The device may further comprise a temperature regulator to measure a temperature of a surface of the photoreceptor and control the heat exchanger based on the measured temperature. The device may further comprise a superior temperature controller to, during a pre-print phase of a print action, inhibit the control of the heat exchanger by the temperature regulator and control the heat exchanger to provide a specified amount of heat exchange.

    PRINTER
    7.
    发明申请
    PRINTER 审中-公开

    公开(公告)号：WO2023003557A1

    公开(公告)日：2023-01-26

    申请号：PCT/US2021/042808

    申请日：2021-07-22

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： PORTNOY, Vitaly ,  KELLA, Dror ,  ASSENHEIMER, Michel ,  KFIR, Yuval

    IPC: G03G15/01 ,  G03G15/10 ,  H04N1/60

    Abstract: In one example, a printing process includes gathering a first group of individual color separations for an image sequentially on an intermediate transfer roller, transferring the first group from the intermediate transfer roller to a printable substrate, gathering a second group of individual color separations for the image sequentially on the intermediate transfer roller, and transferring the second group from the intermediate transfer roller to the substrate.

    CLEANING A PRINT APPARATUS
    8.
    发明申请
    CLEANING A PRINT APPARATUS 审中-公开

    公开(公告)号：WO2021216077A1

    公开(公告)日：2021-10-28

    申请号：PCT/US2020/029693

    申请日：2020-04-24

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： YAACOBOV, Yossi ,  ZION SHTIVI, Tsafi ,  ASSENHEIMER, Michel ,  YONA, Yaniv ,  LAVON, Amiran

    IPC: G03G15/14 ,  G03G21/00

    Abstract: In one example a method comprises moving, by a processor, a photoreceptor of a print apparatus. The photoreceptor is movable between a fully engaged position in which the photoreceptor is to engage a transfer member of the print apparatus to transfer an image from the photoreceptor to the transfer member and a fully disengaged position in which the photoreceptor is remote from the transfer member. The method comprises moving, by a processor, the photoreceptor to an intermediate position between the fully engaged and fully disengaged positions. The method comprises engaging, by a processor, a cleaning system of the print apparatus with the photoreceptor when the photoreceptor is in the intermediate position.

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