21.
    发明专利
    未知

    公开(公告)号:DE60138451D1

    公开(公告)日:2009-06-04

    申请号:DE60138451

    申请日:2001-11-22

    Applicant: XEROX CORP

    Abstract: A belt drive module and a corresponding method includes or employs a belt (10) that moves along a path, at least one support roller (12) or other structure that supports the belt as it moves along the path, a drive roller (11) that effects movement of the belt along the path, a tension roller (74) that applies a tension force to the belt in order to maintain engagement of the belt with the drive and/or support rollers, at least one processing station (e.g., an image processing station) disposed along the path that performs a process relative to a predetermined position of the belt, and a torque assist drive that applies a torque assist force (Td) at a location between the drive roller and the tension roller. Torque assist may be provided by a current limited DC motor or by a constant torque friction clutch applied to a roller (66), e.g., a stripper roller of an electrophotographic imaging system. Advantageously, the torque assist force (Td) facilitates accurate positioning of the belt (e.g., latent image registrations in a color imaging process employing multiple imaging processing stations) by reducing slippage between the drive roller and the belt that may be encountered due to belt wear, toner contamination and/or other debris.

    24.
    发明专利
    未知

    公开(公告)号:DE69318680D1

    公开(公告)日:1998-06-25

    申请号:DE69318680

    申请日:1993-11-23

    Applicant: XEROX CORP

    Abstract: A variable sheet sized sheet feeder adapted to be reloaded while running in a dual tray mode. A dual tray sheet feeder having a sheet transport (121) to reload a stack of sheets from a holding station (104) to an active feed station (102) is provided. The dual tray design allows the holding station to be reloaded while the active tray is feeding thereby providing load while run capability. The feed tray is further provided with tray extensions (103) to allow the loading and feeding of oversized sheets within the same confines. Multiple sensors and movable stack guides (112,114) are provided to allow the transfer of the sheet stack from one tray to another and to report the status of each tray to the operator through a user interface.

    25.
    发明专利
    未知

    公开(公告)号:DE69209665T2

    公开(公告)日:1996-11-07

    申请号:DE69209665

    申请日:1992-01-02

    Applicant: XEROX CORP

    Abstract: A sheet feeding apparatus has a sheet pocket (16) with a first end (18) and a second end (20), rollers (30, 32, 34, 36) spaced a predetermined distance from the first end and including a plurality of sheet-feeder nips (31, 33, 35), one of the nips (33) being an inlet nip for directing a sheet into the first end of the sheet pocket, and at least one other of the nips being an exit nip for directing a sheet out of the first end of the sheet pocket, and bypass rollers (26, 28) for selectively permitting a sheet to exit the sheet pocket via the second end thereof.

    Photoconductive member for asynchronous timing of printing machine

    公开(公告)号:JP2004163910A

    公开(公告)日:2004-06-10

    申请号:JP2003354570

    申请日:2003-10-15

    CPC classification number: G03G15/0152 G03G15/0163 G03G2215/0161

    Abstract: PROBLEM TO BE SOLVED: To provide a photoconductive member which optimizes the length of a photoconductive belt and utilizes the length of the belt to the maximum to print a copy. SOLUTION: The photoconductive member 10 for use in a single pass multi-color printing machine includes an inter-seam zone 92 having a physical seam. The inter seam zone includes one (89) of a plurality of image-on-image registration marks. A plurality of interdocument zones 90 and 84 is also included on the photoconductive member wherein process control marks are formed. While the inter-seam zone is used for monitoring image-to-image registration, the process control marks are monitored to adjust the timing of the printing machine so that copy media synchronizes with an asynchronous placement of the images on the photoconductive member 10. COPYRIGHT: (C)2004,JPO

    Method for diagnosing color image forming apparatus
    27.
    发明专利
    Method for diagnosing color image forming apparatus 有权
    用于诊断彩色图像形成装置的方法

    公开(公告)号:JP2005182054A

    公开(公告)日:2005-07-07

    申请号:JP2004368843

    申请日:2004-12-21

    Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for selectively omitting various constitutional elements of a printing station and tracing the main cause of an irregular color trouble in a full color image forming apparatus. SOLUTION: This method comprises a step S200 of selecting one 1st substation out of a 1st printing station and selecting at least one 2nd substation out of a 2nd printing station, a step S800 of adjusting the setting of the 1st substation based on a distance between the 1st substation and the 2nd substation, a step S1000 of making at least some non-selected substations in the image forming apparatus in a non-active state, and a step S1200 of generating a test image based on the selected substation and identifying the cause from the test image. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种用于选择性省略印刷台的各种构成元件并追踪全色图像形成装置中不规则色彩问题的主要原因的系统和方法。 解决方案:该方法包括从第一打印站中选择一个第一变电站并从第二打印站中选择至少一个第二变电站的步骤S200;步骤S800,其基于第一变电站 第一变电站和第二变电站之间的距离,使图像形成装置中的至少一些未选择的变电站处于非活动状态的步骤S1000,以及基于所选择的变电站生成测试图像并识别 来自测试图像的原因。 版权所有(C)2005,JPO&NCIPI

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