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    DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING AIRFLOW THROUGH VACUUM PLATEN OF PRINTING SYSTEM BY ROTATING VALVE
    1.
    发明申请
    DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING AIRFLOW THROUGH VACUUM PLATEN OF PRINTING SYSTEM BY ROTATING VALVE 有权

    公开(公告)号：US20220314649A1

    公开(公告)日：2022-10-06

    申请号：US17217448

    申请日：2021-03-30

    Applicant: XEROX CORPORATION

    Inventor： John Patrick BAKER ,  Brian M. BALTHASAR ,  Emmett James SPENCE ,  Robert Jian ZHANG ,  Megan ZIELENSKI

    IPC: B41J11/00 ,  B41J2/135 ,  B41J11/02

    Abstract: A printing system comprises an ink deposition assembly, a media transport device, and an airflow control system. The ink deposition assembly comprises printheads to deposit a print fluid, such as ink, on print media, such as paper, transported through a deposition region. The media transport device holds the print media against a movable support surface, such as a belt, by vacuum suction through holes in the media transport device and transports the print media though the deposition region. The airflow control system comprises one or more valves that are actuatable between an open state and a closed state, each valve blocking a subset of the holes in the closed state. The airflow control system also comprises one or more actuators to actuate the valve(s). The actuator(s) selectively actuate the valve(s) between the open and closed states based on a position of an inter-media zone between adjacent print media.

    FOUNTAIN SOLUTION THICKNESS MEASUREMENT USING PRINT ENGINE RESPONSE
    3.
    发明申请
    FOUNTAIN SOLUTION THICKNESS MEASUREMENT USING PRINT ENGINE RESPONSE 有权

    公开(公告)号：US20210402754A1

    公开(公告)日：2021-12-30

    申请号：US16913302

    申请日：2020-06-26

    Applicant: Xerox Corporation

    Inventor： Joseph C. SHEFLIN ,  Jack T. LESTRANGE ,  Anthony S. CONDELLO ,  Palghat S. RAMESH ,  Brian M. BALTHASAR

    IPC: B41F31/02 ,  B41F31/13

    Abstract: Examples of the preferred embodiments use printed content (e.g., halftones, difference in grayscale or darkness) to determine thickness of fountain solution applied by a fountain solution applicator on an imaging member surface and/or determine image forming device real-time image forming modifications for subsequent printings. For example, in real-time during the printing of a print job, a sensor may measure halftones or grayscale differences between printed content and non-printed content of a current printing on print substrate. Based on this measurement of printed content output from the image forming device, the image forming device may adjust image forming (e.g., fountain solution deposition flow rate, imaging member rotation speed) to reach or maintain a preferred fountain solution thickness on the imaging member surface for subsequent (e.g., next) printings of the print job.

    DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING AIRFLOW THROUGH VACUUM PLATEN OF PRINTING SYSTEM BY A MOVABLE DAMPER
    5.
    发明申请
    DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING AIRFLOW THROUGH VACUUM PLATEN OF PRINTING SYSTEM BY A MOVABLE DAMPER 有权

    公开(公告)号：US20220314648A1

    公开(公告)日：2022-10-06

    申请号：US17217399

    申请日：2021-03-30

    Applicant: XEROX CORPORATION

    Inventor： Megan ZIELENSKI ,  John Patrick BAKER ,  Brian M. BALTHASAR ,  Emmett James SPENCE ,  Robert Jian ZHANG

    IPC: B41J11/00

    Abstract: A printing system comprises a media transport device which holds print media, such as paper, against a movable support surface, such as a belt, by vacuum suction through holes in the media transport device and transports the print media though a deposition region of one or more printheads, which deposit a print fluid, such as ink, on the print media. The printing system comprises an airflow control device comprising one or more dampers that are moveable in a cross-process direction between an undeployed configuration and a deployed configuration, each damper blocking at least one row of the holes in the deployed configuration. The airflow control device also comprises one or more actuators to move the damper(s). The actuator(s) are controlled to selectively move the damper(s) between the undeployed and deployed configuration based on a position of an inter-media zone between adjacent print media held against the movable support surface.

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