PRINTERS AND CONTROLLERS
    1.
    发明申请

    公开(公告)号:US20220143973A1

    公开(公告)日:2022-05-12

    申请号:US17418961

    申请日:2019-07-24

    Abstract: Example implementations relate to controllers and printers to operate at least one liquid ejection device of a printhead; the liquid ejection device comprising a nozzle and an associated print liquid chamber bearing a transducer to eject print liquid from the nozzle in response to a firing signal; the print chamber being fluidically coupled to a nozzle supply channel; the at least one liquid ejection device comprising a channel coupled to the print liquid chamber and the nozzle supply channel; the channel having a respective actuator to urge print liquid through the print chamber in response to a circulation signal; wherein the controller comprises temperature control circuitry to actuate the respective actuator using a temperature control signal to increase the temperature of print liquid in the print liquid chamber.

    DROPS BASED ON MEDIA TEMPERATURE
    2.
    发明申请

    公开(公告)号:US20190389203A1

    公开(公告)日:2019-12-26

    申请号:US16481506

    申请日:2017-05-03

    Abstract: In an example, a print system identifies a number of drops to eject corresponding to an expected variation in print fluid based on media temperature and generate print instructions to operate a fluid eject device to that effect. In another example, a print system includes a temperature engine to identify a temperature, a compensator engine to identify a number of drops of print fluid based on the media temperature, and a control engine to generate print instructions to operate a fluid ejection device to place the number of drops of print fluid on media.

    Image generation on a transparent or semitransparent substrate

    公开(公告)号:US10940697B2

    公开(公告)日:2021-03-09

    申请号:US16977736

    申请日:2018-04-23

    Abstract: A method of generating an image on a transparent or semitransparent substrate, the method comprising analyzing a first image to be printed on a first side of the substrate to identify a region associated with a predominant color, printing, on the first side of the substrate a color patch with the identified predominant color, printing, on a second side of the substrate, a test color pattern overlapping with the color patch on the first side of the substrate, determining, in a transmission geometry, a color distribution in the color patch, and generating from the determined color distribution, for the region associated with the predominant color identified in the first image, a transmission mode color profile for printing on the second side of the substrate.

    Apparatus and method for controlling a printing device
    8.
    发明授权
    Apparatus and method for controlling a printing device 有权
    用于控制打印装置的装置和方法

    公开(公告)号:US09004642B2

    公开(公告)日:2015-04-14

    申请号:US13752173

    申请日:2013-01-28

    CPC classification number: B41J2/07 B41J2/2114

    Abstract: An apparatus and method for controlling a printing device are described. In examples, a printing device has a first printhead interface, a first printhead for use in applying a treatment fluid to a print medium and a second printhead interface, a second printhead for use in applying ink to the print medium. The first and second printhead interfaces are consecutively aligned along a common axis and each printhead has a plurality of nozzles that extend in a direction of relative movement of the print medium in relation to said printheads. An example apparatus then has a controller arranged to, when the printheads are installed, configure activation of nozzles of at least one of the first and second printheads in the direction of relative movement to spatially offset useable nozzles of the first printhead with respect to useable nozzles of the second printhead in said direction.

    Abstract translation: 描述了一种用于控制打印设备的设备和方法。 在示例中,打印装置具有第一打印头接口,用于将打印介质施加处理流体的第一打印头和第二打印头接口,用于向打印介质施加墨水的第二打印头。 第一和第二打印头接口沿着共同的轴线连续对齐,并且每个打印头具有多个喷嘴,其沿打印介质相对于所述打印头的相对运动的方向延伸。 一个示例性装置然后具有控制器,其布置成当打印头被安装时,在相对运动的方向上配置第一和第二打印头中的至少一个的喷嘴的激活,以便相对于可用的喷嘴空间上抵消第一打印头的可用喷嘴 的第二打印头。

    Online spitting
    10.
    发明授权

    公开(公告)号:US11220108B2

    公开(公告)日:2022-01-11

    申请号:US17050469

    申请日:2018-06-19

    Abstract: An example of a printing apparatus comprising a scanning printhead and a controller is disclosed. The scanning printhead comprises a plurality of nozzles to print using a mask comprising a ramp area and non-ramp area. A first subset of nozzles of the plurality of nozzles is assigned to the ramp area and the second subset of nozzles of the plurality of nozzles is assigned to the non-ramp area. The controller is to calculate a number of spits of a nozzle from the second subset of nozzles for a pass. The controller is also to calculate a number of spits of a nozzle from the first subset of nozzles for the pass based on the number of spits of the nozzle from the second subset of nozzles. The controller is further to instruct the nozzle from the first subset of nozzles to eject online an amount of a composition on a service zone based on the number of spits of the first subset of nozzles.

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