Apparatus and method for precise velocity control
    33.
    发明公开
    Apparatus and method for precise velocity control 失效
    Apparat und Verfahrenfürgenaue Geschwindigkeitssteuerung

    公开(公告)号:EP0714161A1

    公开(公告)日:1996-05-29

    申请号:EP95308369.8

    申请日:1995-11-22

    申请人: XEROX CORPORATION

    IPC分类号: H02P5/00 G03G15/00 G03G15/16

    摘要: An apparatus and method for precisely controlling a driven component (10) in an electromechanical system, particularly for controlling the speed of a photoreceptor or intermediate transfer belt in an electrophotographic printing machine. A sensor (160) monitors the speed of the driven belt (10) and generates and sends a signal indicative thereof to a controller (90). A second sensor monitors the rotational speed of the shaft (172) of the drive motor (170) and also generates a signal indicative thereof and sends that signal to the controller (90). The controller (90) processes the signals so that a preselected belt speed is maintained while minimizing or eliminating torque disturbances caused by the rapid fluctuation of the motor velocity without the necessity of using an inertial flywheel.

    摘要翻译: 一种用于精确地控制机电系统中的从动部件(10)的设备和方法,特别是用于控制电子照相印刷机中的感光体或中间转印带的速度。 传感器(160)监视从动带(10)的速度,并产生并发送指示给控制器(90)的信号。 第二传感器监测驱动马达(170)的轴(172)的旋转速度,并且还产生指示其的信号,并将该信号发送到控制器(90)。 控制器(90)处理信号,使得保持预选的皮带速度,同时最小化或消除由马达速度的快速波动引起的扭矩扰动,而不需要使用惯性飞轮。

    Apparatus and method for controlling lateral movement of a moving belt
    34.
    发明公开
    Apparatus and method for controlling lateral movement of a moving belt 失效
    装置和方法,用于控制移动带的横向移动

    公开(公告)号:EP0699968A1

    公开(公告)日:1996-03-06

    申请号:EP95305944.1

    申请日:1995-08-24

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/00 B65G39/16

    摘要: An apparatus and method for controlling lateral movement of a belt (10) supported on two or more rollers (6,8) in an electrophotographic printing machine. The belt is rotated for several revolutions and the actual profile of the belt edge is sensed and stored. A steering roll is then tilted at an angle (Θ) large enough to overcome any steering system backlash and the belt drift rate is measured. Incremental steering adjustments are then made in the opposite direction until the belt drift rate reverses direction. The steering system backlash is then determined as a function of the incremental angle (θ) (which is a known number of steering motor steps) and the number of corrective steering changes made. The backlash for the system in the opposite direction is then determined in the same manner. Steering corrections to the belt are then made by the belt edge detector (100,102) and printing machine controller (90) with compensation for backlash so that the steering system is more responsive.

    摘要翻译: 用于控制带(10)的横向运动的装置和方法支持在电子照相印刷机的两个或更多个辊(6,8)。 带旋转数圈和皮带边缘的实际轮廓被感测并存储。 的转向辊,然后在大到足以克服任何转向系统齿隙和带漂移测量角度(THETA)的速率倾斜。 增量转向调整是在相反的方向,直至带漂移率相反的方向做出。 转向系统齿隙然后确定性开采作为增量角度的函数(θ驱动;)(所有这些是已知数量的转向马达步),制成校正转向变化的数量。 该系统在相反的方向上的齿隙然后确定性开采中相同的方式。 转向校正到带,然后由带边缘检测器(100,102)和印刷机器控制器(90)具有用于间隙补偿由所以做了转向系统的响应速度。

    Single pass color printer
    35.
    发明公开
    Single pass color printer 失效
    单通彩色打印机

    公开(公告)号:EP0552926A3

    公开(公告)日:1993-11-03

    申请号:EP93300365.9

    申请日:1993-01-20

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/01 H04N1/46 G06K15/12

    摘要: A single pass highlight color printer is disclosed which utilizes two pairs of Raster Output Scan (ROS) systems mounted symmetrically about a common polygon motor assembly (38,40). Four identical optical systems (30,32,34,36) are thus provided , with diode laser outputs (6,8,10,12) directed from a ROS frame (4') parallel and separated to allow the appropriate spacing for xerographic components situated adjacent the xerographic belt. Each ROS unit includes a 90° mirror pair (36D1,36D2) which is mounted on a roof mirror carriage (36F) which in turn is connected to a focus carriage (36G) via a flexible guide system (50,52,54; 58,60,62). The interaction between the focus carriage and the roof mirror carriage enables a skew alignment and process (beam steering) adjustment to be accomplished with a high degree of precision.

    Copier with selective editing
    36.
    发明公开
    Copier with selective editing 失效
    具有选择性版本的COPI

    公开(公告)号:EP0249479A3

    公开(公告)日:1988-02-03

    申请号:EP87305178

    申请日:1987-06-11

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/32

    CPC分类号: G03G15/5016 G03G15/36

    摘要: A light lens scanning system (8) operable in a document scan mode to reproduce documents (30) onto a photosensitive record medium (12) is modified to operate in a document edit mode. A document is placed face-up on a platen surface by the operator and the edit mode is selected. A laser generated light spot output from a raster output scanner (102) is introduced into the optical system and is directed along an optical path which is opposite to the optical path of a projected document image. The light spot output is visible to the operator at the platen (40) as a light cursor. This movement of the cursor is under control of the operator via switches on the control panel (88). The cursor is moved through x and y coordinates (X o Y o ; X o Y₁; X₁Y₁; X₁Y₀) to delineate an area of the document to be selectively erased. Coordinate positions are entered into a microcontroller memory. Following exposure of the entire image at the record medium, control means (89) generate signals in response to the entered coordinate positions and these signals are used to actuate an erase mechanism for a time sufficient to erase the portion of the copy corresponding to the selected portion of the document.

    Copier with selective editing
    37.
    发明公开
    Copier with selective editing 失效
    Kopierer mit selektiver Ausgabe。

    公开(公告)号:EP0249479A2

    公开(公告)日:1987-12-16

    申请号:EP87305178.3

    申请日:1987-06-11

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/32

    CPC分类号: G03G15/5016 G03G15/36

    摘要: A light lens scanning system (8) operable in a document scan mode to reproduce documents (30) onto a photosensitive record medium (12) is modified to operate in a document edit mode. A document is placed face-up on a platen surface by the operator and the edit mode is selected. A laser generated light spot output from a raster output scanner (102) is introduced into the optical system and is directed along an optical path which is opposite to the optical path of a projected document image. The light spot output is visible to the operator at the platen (40) as a light cursor. This movement of the cursor is under control of the operator via switches on the control panel (88). The cursor is moved through x and y coordinates (X o Y o ; X o Y₁; X₁Y₁; X₁Y₀) to delineate an area of the document to be selectively erased. Coordinate positions are entered into a microcontroller memory. Following exposure of the entire image at the record medium, control means (89) generate signals in response to the entered coordinate positions and these signals are used to actuate an erase mechanism for a time sufficient to erase the portion of the copy corresponding to the selected portion of the document.

    摘要翻译: 以文件扫描模式操作以将文档(30)再现到感光记录介质(12)上的光透镜扫描系统(8)被修改为在文档编辑模式下操作。 操作者将文件面朝上放置在压板表面上,并选择编辑模式。 将从光栅输出扫描器(102)输出的激光产生的光点引入到光学系统中,并且沿着与投影的文档图像的光路相对的光路被引导。 光斑输出对于作为光标的压板(40)的操作者是可见的。 光标的移动由操作员通过控制面板(88)上的开关控制。 光标通过x和y坐标(XoYo; XoY1; X1Y1; X1Y0)移动,以描绘要被选择性地擦除的文档区域。 坐标位置输入到微控制器存储器中。 在整个图像在记录介质上曝光之后,控制装置(89)响应于所输入的坐标位置产生信号,并且这些信号用于致动擦除机构一段足以擦除与所选择的对应的副本的部分的时间 文件的一部分。

    Modular color xerographic printing architecture
    39.
    发明公开
    Modular color xerographic printing architecture 审中-公开
    Modulare xerografische Farbdruckarchitektur

    公开(公告)号:EP2214060A2

    公开(公告)日:2010-08-04

    申请号:EP10152504.6

    申请日:2010-02-03

    申请人: Xerox Corporation

    IPC分类号: G03G15/01

    摘要: A printing apparatus comprises a plurality of substantially identical modules forming a common sheet path. Each module includes an image receptor, a supply of marking material of a predetermined type, and a marking engine for creating an image of marking material on the sheet. Within each module a transport receives a sheet, moves the sheet to receive the image from the marking engine, and makes the sheet available for printing by a subsequent module in the sheet path. A sheet sensing system within each module detects a position of the sheet and uses that information to adjust the position of the image to be transferred to the sheet.

    摘要翻译: 打印装置包括形成公共片材路径的多个基本相同的模块。 每个模块包括图像接收器,预定类型的标记材料的供应,以及用于在片材上产生标记材料的图像的标记引擎。 在每个模块内,传送器接收纸张,移动纸张以从标记引擎接收图像,并使片材可用于片材路径中的后续模块进行打印。 每个模块内的纸张检测系统检测纸张的位置,并使用该信息来调整要转印到纸张上的图像的位置。

    Transfer roll engagement method for minimizing media induced motion quality disturbances
    40.
    发明公开
    Transfer roll engagement method for minimizing media induced motion quality disturbances 有权
    传输辊接合方法,用于最小化介质引起的运动质量扰动

    公开(公告)号:EP1533990A1

    公开(公告)日:2005-05-25

    申请号:EP04027783.2

    申请日:2004-11-23

    申请人: Xerox Corporation

    IPC分类号: H04N1/047 B41J11/00

    摘要: A method of maintaining a rotational velocity of an imaging drum (14) during engagement with a transfer roll (22) in an image producing device including: forming a nip (29) to transfer an image from the imaging drum to media when the imaging drum is in engagement with the transfer roll; maintaining a substantially constant imaging drum rotational velocity mode during engagement with the transfer roll; sensing a lead edge of portion of the media prior to entering the nip; augmenting torque assist to increase the torque of the transfer roll when the media is in the nip for a defined period; and resuming the substantially constant imaging drum rotational velocity mode while a second portion of the media is in the nip.

    摘要翻译: 一种在与图像生成装置中的转印辊(22)接合期间保持成像鼓(14)的旋转速度的方法,该方法包括:当成像鼓(22)形成辊隙(29)以将成像鼓 与转印辊接合; 在与转印辊接合期间保持基本恒定的成像鼓转速模式; 在进入辊隙之前感测介质的一部分的前缘; 当介质处于咬合区一段限定的时间时,增大扭矩辅助以增加传送辊的扭矩; 并且当介质的第二部分处于辊隙中时恢复基本恒定的成像鼓转速模式。