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    Method of shifting an image or paper to reduce show through in duplex printing
    112.
    发明公开
    Method of shifting an image or paper to reduce show through in duplex printing 有权
    一种用于图像或文档的位移过程，以通过显示-减少双面打印

    公开(公告)号：EP1292115A2

    公开(公告)日：2003-03-12

    申请号：EP02255881.1

    申请日：2002-08-22

    Applicant: Xerox Corporation

    Inventor： Conrow, Brian R. ,  Kerxhalli, David M.

    IPC: H04N1/409

    CPC classification number: H04N1/4095 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/00092 ,  H04N1/047 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04756 ,  H04N2201/04768 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

    Abstract: The relationship between first and second side images is evaluated to determine how the position of the paper and/or the size and arrangement of an image can be manipulated to compensate for paper shrinkage caused by fusing. Show through is reduced by performing setup (S2000) to adjust a pixel clock frequency and/or a photoreceptor speed, determining a residual magnification error (S3000), determining margin shifts (S4000) to compensate for the residual magnification error, and applying the margin shifts (S5000). Paper shrink effects on registration can be compensated for using determinations made during a typical printer setup. Show through errors can be reduced without using a paper conditioner to pre-shrink or re-wet the paper. In simplex and duplex printing, the show through errors worsen as the image moves away from the registration edge. Using information obtained during setup, a margin shift is determined that results in a significant reduction in the maximum show through for each image.

    Abstract translation: 第一和第二侧的图像之间的关系进行评估，以确定如何矿的纸和/或图像的尺寸和布置的位置可被操纵，以补偿由熔化引起的纸的收缩。 显示通过通过进行设置（S2000）来调整一个像素时钟频率和/或光接受器速度，确定性采矿残余放大误差（S3000），确定性采矿余量位移（S4000），以补偿残余倍率误差，以及将余量减小 移位（S5000）。 上登记纸收缩的效果可以使用典型的打印机安装过程中进行的确定来补偿。 通过错误去可以在不使用纸调理预收缩或重新润湿纸被减小。 在单面和双面打印，该节目通过误差恶化，将图像移动从登记边缘移开。 使用安装过程中获得的信息，边缘移位确定性通过对于每个图像开采确实导致在最大显示一个显著减少。

    A method for preparing a lithographic printing plate
    116.
    发明公开
    A method for preparing a lithographic printing plate 失效
    Verfahren zur Vorbereitung von einer Lithographische Druckplatte

    公开(公告)号：EP0713324A1

    公开(公告)日：1996-05-22

    申请号：EP94203326.7

    申请日：1994-11-15

    Applicant: AGFA-GEVAERT naamloze vennootschap

    Inventor： Van Hunsel, Johan, c/o Agfa-Gevaert N.V., ,  Bosschaerts, Jacobus, c/o Agfa-Gevaert N.V.,

    IPC: H04N1/047

    CPC classification number: G03F7/2055 ,  H04N1/047 ,  H04N1/1008 ,  H04N1/1135 ,  H04N2201/02443 ,  H04N2201/03108 ,  H04N2201/03158 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04756 ,  H04N2201/04767 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04798

    Abstract: A modulated writing light beam (18) having a wavelength to which an imaging element (33) is sensitive and a reference light beam (46) having a wavelength to which the imaging element (33) is insensitive are generated and simultaneously directed to a moving optical device (22) to cause the writing light beam (18) to scan across the surface of the imaging element (33) in a first scanning direction (C) and the reference light beam (46) to scan across the surface of a light detecting element (50) in the first scanning direction (C) to generate signals indicative of the position of the writing light beam (18) on the surface of the imaging element (33). The writing light beam (18) is modulated and the imaging element (33) is moved in a second scanning direction (B) in response to the signals generated by the light detecting element (50). Thereafter the exposed imaging element (33) is processed to prepare a lithographic printing plate. The invention is applicable to both positive and negative imaging working systems.

    Abstract translation: 产生具有成像元件（33）敏感的波长的调制写入光束（18）和具有成像元件（33）不敏感的波长的参考光束（46），同时指向移动 光学装置（22），使得写入光束（18）沿第一扫描方向（C）扫描成像元件（33）的表面，并且参考光束（46）扫过光的表面 在所述第一扫描方向（C）上检测元件（50），以产生指示所述写入光束（18）在所述摄像元件（33）的表面上的位置的信号。 响应于由光检测元件（50）产生的信号，调制写入光束（18）并且成像元件（33）在第二扫描方向（B）上移动。 此后，对曝光的成像元件（33）进行处理以制备平版印刷版。 本发明适用于正，负成像工作系统。

    Write head controller
    118.
    发明公开
    Write head controller 失效
    写头控制器

    公开(公告)号：EP0327929A3

    公开(公告)日：1991-11-27

    申请号：EP89101633.9

    申请日：1989-01-31

    Applicant: POLAROID CORPORATION

    Inventor： Plummer, William T.

    IPC: G06K15/22 ,  H04N1/04

    CPC classification number: H04N1/0678 ,  G01D5/264 ,  G01D5/36 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04727 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

    Abstract: A system for precisely positioning a printing element relative to a rotating drum, as in a drum printer, employs two position signals for alignment purposes. A pair of linear grids is disposed along a path of travel of the printing element for generating, with the aid of optical beam and sensor devices, a periodic electric signal which varies in accordance with printing element position. One of the grids is stationary and the second of the grids moves with a carriage supporting the printing element. An encoder positioned alongside the drum is operative with a set of markings having a variation in spatial frequency, or a grid overlay, to produce an alternating electric signal which varies in accordance with rotational position of the drum. Motors which rotate the drum as well as a lead screw which translates the printing element may be constructed as synchronous motors to permit phase locking to each other. Circuitry responsive to periodic signals outputted by the linear grids and the encoder introduce phase shift between motor drive signals to align position of the printing element with position of the drum independently of any backlash which may be present between the lead screw and the carriage driven by the lead screw.

    Film-based dual energy radiography
    120.
    发明公开
    Film-based dual energy radiography 失效
    基于电影的双能量摄影

    公开(公告)号：EP0137465A3

    公开(公告)日：1988-02-24

    申请号：EP84111953

    申请日：1984-10-05

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Andrews, Edward William ,  Lambert, Thomas Wayne

    IPC: H05G01/60 ,  H04N05/32 ,  G06F15/68

    CPC classification number: H04N1/0635 ,  H04N1/0607 ,  H04N1/0671 ,  H04N1/203 ,  H04N1/2032 ,  H04N1/2036 ,  H04N5/3205 ,  H04N2201/03108 ,  H04N2201/03158 ,  H04N2201/0412 ,  H04N2201/04703 ,  H04N2201/04718 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04749 ,  H04N2201/04756 ,  H04N2201/04767 ,  H04N2201/04789 ,  H04N2201/04791 ,  H05G1/60

    Abstract: Apparatus for reading out individual x-ray images recorded on a double-emulsion radiographic film or on separate films that were coincident when exposed simultaneously to a polyenergetic or broad x-ray photon energy spectrum beam emergent from a body and where an image corresponding to one obtained with a low energy part of the spectrum is formed on one film and an Image corresponding to a higher energy part of the spectrum is formed on the other. One readout apparatus ia for the case of two separate films which, after development, are illuminated from the back and optically scanned to derive analog signals representative of the intensities of spatially corresponding picture elements on each film. Another apparatus is for the case where the two images are on opposite sides of a film and are represented by alternate fine image information lines obtained by interposing a grid during the x-ray exposure. Another is for the case where a reflective layer is disposed between the film images during readout. In all cases the films are optically scanned and the resulting analog signals are digitized and variously processed to yield an image representative of that which is different between the two original different energy images.

    Abstract translation: 用于读出记录在双重乳剂放射线照相胶片上的单独X射线图像或在同时暴露于来自身体的多能或宽X射线光子能量光束的同时暴露的单独膜上的单独X射线图像的装置，并且其中图像对应于一个 在一个膜上形成具有低能量部分的光谱，并且另一个膜上形成对应于光谱的较高能量部分的图像。 一个读出装置用于两个分开的膜，在显影之后，它们从后面被照射并被光学扫描以得到代表每个胶片上的空间对应的像素的强度的模拟信号。 另一种装置是这样的情况，其中两个图像在胶片的相对两侧，并且由在X射线曝光期间插入格栅而获得的交替的精细图像信息线表示。 另一个是在读出期间将反射层设置在胶片图像之间的情况。 在所有情况下，膜被光学扫描并且所得到的模拟信号被数字化并进行各种处理以产生代表在两个原始不同能量图像之间不同的图像。

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