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    AIRFLOW CONTROL IN A PRINTING SYSTEM USING A MOVABLE BAFFLE, AND RELATED DEVICES, SYSTEMS, AND METHODS
    2.
    发明申请
    AIRFLOW CONTROL IN A PRINTING SYSTEM USING A MOVABLE BAFFLE, AND RELATED DEVICES, SYSTEMS, AND METHODS 有权

    公开(公告)号：US20220314647A1

    公开(公告)日：2022-10-06

    申请号：US17217388

    申请日：2021-03-30

    Applicant: XEROX CORPORATION

    Inventor： Peter John KNAUSDORF ,  Anthony Salvatore CONDELLO ,  Jack T. LESTRANGE ,  Palghat S. RAMESH ,  Joseph C. SHEFLIN

    IPC: B41J11/00

    Abstract: A printing system comprises an ink deposition assembly, a media transport device, and an airflow control system. The ink deposition assembly comprises a printhead to eject ink through a carrier plate opening in a carrier plate. The media transport device holds a print medium against a movable support surface by vacuum suction and transports the print media through a deposition region. The airflow control system comprises a baffle that is movable between an upstream-blocking configuration and a downstream-blocking configuration, and an actuator configured to move the baffle. In the upstream-blocking configuration the baffle blocks airflow through an upstream side of the printhead opening while allowing airflow through a downstream side of the printhead opening. In the downstream-blocking configuration the baffle blocks airflow through the downstream side of the printhead opening while allowing airflow through the upstream side of the printhead opening.

    CONTAMINATION-PROOF IMAGING MEMBER CLEANING DEVICE AND METHOD
    3.
    发明申请
    CONTAMINATION-PROOF IMAGING MEMBER CLEANING DEVICE AND METHOD 审中-公开

    公开(公告)号：US20180281380A1

    公开(公告)日：2018-10-04

    申请号：US15474812

    申请日：2017-03-30

    Applicant: XEROX CORPORATION

    Inventor： Jack T. LESTRANGE ,  Peter J. KNAUSDORF ,  Anthony S. CONDELLO

    IPC: B41F35/06 ,  B41F7/02

    CPC classification number: B41F35/06 ,  B41F7/02

    Abstract: A cleaning apparatus includes an inker roller and an ink source holding ink for the inker roller. The inker roller contacts a reimageable surface of an imaging member downstream of an ink image transfer station that transfers an ink image from the surface to a print sheet, with the surface having residual ink remaining thereon after the transfer of the ink image. The inker roller applies ink from the ink source against the reimageable surface. However, instead of the ink transferring from the inker roller to the surface, the ink stays with the inker roller and removes the residual ink from the surface to clean the surface for a subsequent ink image. The inker roller is not contaminated from removing the residual ink as the inker roller is designed to be coated by ink that adds to its coating of ink via the removed residual ink.

    SYSTEMS AND METHODS FOR IMPLEMENTING ADVANCED STRIPPING OF IMAGE RECEIVING MEDIA SUBSTRATES IN IMAGE FORMING DEVICES
    4.
    发明申请
    SYSTEMS AND METHODS FOR IMPLEMENTING ADVANCED STRIPPING OF IMAGE RECEIVING MEDIA SUBSTRATES IN IMAGE FORMING DEVICES 有权
    在图像形成装置中实现图像接收介质基板的高级剥离的系统和方法

    公开(公告)号：US20160033905A1

    公开(公告)日：2016-02-04

    申请号：US14448982

    申请日：2014-07-31

    Applicant: XEROX Corporation

    Inventor： Jason M. LEFEVRE ,  Jack T. LESTRANGE

    IPC: G03G15/16

    CPC classification number: G03G15/161 ,  G03G15/1605 ,  G03G15/6529 ,  G03G15/6532

    Abstract: A system and method are provided implementing advanced stripping of image receiving media substrates, including substrates involved in any cut-sheet image forming process in an image forming device that includes a pressure nip necessitating an ability to reliably remove the sheets of image receiving media substrate from a conformable belt and/or roller surface. An appropriate peel force is applied to and opposite side of the image receiving media substrate that effectively peels an image receiving media substrate and image combination from an intermediate transfer belt downstream of a conformable transfer nip. A relatively small diameter stripper roller is positioned downstream of, and in close proximity to, the conformable transfer nip as an apparatus by which to effect application of the appropriate peel force. The small diameter stripper roller has a contact surface formed of an appropriately tacky material, including certain silicone materials, to apply the peel force.

    Abstract translation: 提供一种实现图像接收介质基板的高级剥离的系统和方法，包括涉及图像形成装置中的任何切割片图像形成处理的基板，该图像形成装置包括需要将图像接收介质基板的片材可靠地从 适合的带和/或辊表面。 适当的剥离力被施加到图像接收介质基板的相对侧，其有效地将图像接收介质基板和图像组合从中间转印带下游到一致的转印间隙。 相对较小直径的剥离辊定位在适配转印辊隙的下方并且非常接近于作为施加适当剥离力的装置。 小直径剥离辊具有由适当的粘性材料（包括某些硅酮材料）形成的接触表面以施加剥离力。

    LEAD EDGE OFFSET CORRECTION FOR INTERMEDIATE TRANSFER DRUM IMAGING
    5.
    发明公开
    LEAD EDGE OFFSET CORRECTION FOR INTERMEDIATE TRANSFER DRUM IMAGING 审中-公开

    公开(公告)号：US20230288832A1

    公开(公告)日：2023-09-14

    申请号：US17490450

    申请日：2021-09-30

    Applicant: Xerox Corporation

    Inventor： Patricia J. DONALDSON ,  Jack T. LESTRANGE

    IPC: G03G15/01 ,  G03G15/00

    CPC classification number: G03G15/0194 ,  G03G15/0131 ,  G03G15/5058 ,  G03G2215/0158

    Abstract: An apparatus and method for compensating for variation of the image placement for each color station in an intermediate transfer drum system. A sensor detects the image placed by the previous station and triggers the imaging on the drum such that it properly registered to the previous image. However, the variation of the drum’s radius results in runout which creates an error in the image placement, since the surface drum travel will be larger or smaller than expected. The method to correct for a lead edge offset for radial runout involves dividing the drum into regions and calculating an offset center of each region. As the drum transitions from region to region the offset value is updated to determine when to start imaging for proper placement on the sheet. The offset can be derived from the image runout to find the distance traveled from the transfer point or can be measured directly from color-to-color registration variation.

    IMAGE BASED LEARNING CORRECTION FOR MITIGATING THERMAL GHOSTING IN A DIGITAL PRINTER
    6.
    发明申请
    IMAGE BASED LEARNING CORRECTION FOR MITIGATING THERMAL GHOSTING IN A DIGITAL PRINTER 有权

    公开(公告)号：US20220392039A1

    公开(公告)日：2022-12-08

    申请号：US17336729

    申请日：2021-06-02

    Applicant: Xerox Corporation

    Inventor： Joseph C. SHEFLIN ,  Jack T. LESTRANGE ,  Palghat S. RAMESH

    IPC: G06T7/00 ,  G03F7/20 ,  G01J5/00

    Abstract: An image based correction system compensates for the image quality artifacts induced by thermal ghosting on evolving imaging member surfaces. With thermal ghosting directly tied to previous image content, a feed forward system determines thermal ghosting artifacts based on images previously rendered and generates an open loop gray-level correction to a current image that mitigates undesirable ghosting. For example, the correction system compensates for the thermal ghosting by making the current image “lighter” in areas that will be imaged onto warmer blanket regions, thereby cancelling out TRC differences between different temperature regions. A temperature sensor is used to measure the temperature of the imaging blanket due to the stresses induced by the image. This data is used to learn the parameters of the temperature model periodically during operation, and used in subsequent corrections to mitigate thermal ghosting in spite of changes in blanket properties over use and time.

    FOUNTAIN SOLUTION THICKNESS MEASUREMENT USING PRINT ENGINE RESPONSE
    7.
    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.

    MATRIX ADDRESSABLE, LINE LASER, MARKING SYSTEM USING LASER ADDITIVES
    9.
    发明公开
    MATRIX ADDRESSABLE, LINE LASER, MARKING SYSTEM USING LASER ADDITIVES 审中-公开

    公开(公告)号：US20230158811A1

    公开(公告)日：2023-05-25

    申请号：US17531098

    申请日：2021-11-19

    Applicant: Xerox Corporation

    Inventor： Peter J. KNAUSDORF ,  Anthony S. CONDELLO ,  Jack T. LESTRANGE ,  Palghat S. RAMESH ,  Joseph C. SHEFLIN

    IPC: B41J2/47 ,  B41M5/26 ,  G02B26/08 ,  G02B7/18

    CPC classification number: B41J2/471 ,  B41M5/267 ,  G02B26/0833 ,  G02B7/1815

    Abstract: Apparatus and method for using a line laser (LL) to quickly mark a substrate or media by utilizing a laser additive on/within the substrate/media, which greatly reduces the power requirement for marking the substrate/media. The combination of the LL wide swath (>305 mm) and the improved media/surface sensitivity to laser wavelength allows the LL marking system to achieve faster marking than other systems. The LL is mounted over a transport which transports the sensitized substrate/media past the LL for marking. The desired image is projected from the LL line by line in synch with the moving media and once the media passes the beam path of the LL, marking is complete. In this case, the media has been physically-altered via the heat generated by the LL interacting with the photosensitized media and is permanent. A second method would use a photosensitizing agent coated on top of the media to be marked.

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