Apparatus for exposure of printing plates using image modification
    5.
    发明公开
    Apparatus for exposure of printing plates using image modification 审中-公开
    对于印刷板的图像畸变校正曝光装置

    公开(公告)号:EP0918255A3

    公开(公告)日:2003-01-29

    申请号:EP98309320.4

    申请日:1998-11-13

    摘要: A recorded image is distorted on a printing plate when an image information for a computer is recorded in the form of a band with a band width of a plurality of image elements on a printing plate wound around a drum. This invention provides an undistorted recording on the printing plate, made possible by an arrangement that has a printing plate wound around a drum in the form of a right circular cylinder, and exposure unit to record image information in the form of a band on the printing plate by means of a light beam, a moving mechanism to move the exposure unit by one band width in the direction of the drum axis in relation to the drum while the drum makes a revolution, an image treating apparatus with the image information stored in the form of a right quadrangle, and an image modulator to rearrange and slant each band of image information readout from said image treatment apparatus by one band width in the opposite direction to the movement of said moving mechanism.

    Vorrichtung und Verfahren zur Verbesserung der Druckeffizienz

    公开(公告)号:EP1229490A2

    公开(公告)日:2002-08-07

    申请号:EP02001101.1

    申请日:2002-01-23

    发明人: Housel, Edward M.

    IPC分类号: G06K15/02 B41B19/00

    摘要: Beschrieben werden Verfahren und Vorrichtungen zum Erzeugen eines Proofsatzes eines digitalen Druckauftrags und Verzögern der Fertigstellung des Drucksatzes so lange, bis der Proofsatz freigegeben ist. Die Erfindung umfasst zudem das Erstellen eines Proofsatzes, der Druckmerkmalsinformationen auf Seitenebene umfasst, die auf dem Proofsatz in einer Wasserzeichenschrift aufgedruckt werden.

    摘要翻译: 使用数字打印机(10)进行数字打印的设备,以及以数字格式生成打印作业的相关数据处理设备。 数据处理装置确定打印作业是否包括使得必要的打印证明集的特性,如果是这种情况,则数据处理装置还确定证明集是否需要打印在证明页上的某些打印特性。 独立权利要求是用于打印文件证明集的方法。

    Inner drum type image recording device
    8.
    发明公开
    Inner drum type image recording device 有权
    Innentrommel-Bildaufzeichnungsgerät

    公开(公告)号:EP1112842A2

    公开(公告)日:2001-07-04

    申请号:EP00128283.9

    申请日:2000-12-22

    IPC分类号: B41B19/00

    CPC分类号: B41B19/00

    摘要: An inner drum type image recording device is provided which, in exposure of a photosensitive lithographic printing plate, eliminates unnecessary light (reflected scattered light) other than light for main exposure, and eliminates fluctuations in a dot percent. By limiting baffles to a minimum number of positions necessary, fluctuations in the dot percent caused by reflected scattered light are suppressed, and a sufficient space needed for maintenance work on a spinner mirror and the like can be ensured. Further, by making the baffle fan-shaped and disposing the baffle at a periphery of the spinner mirror, light of a subscanning component of reflected scattered light can be reliably blocked.

    摘要翻译: 提供一种内鼓型图像记录装置,其在感光性平版印刷版的曝光中消除了除了用于主曝光的光之外的不必要的光(反射散射光),并且消除了点百分比的波动。 通过将挡板限制在所需的最少位置数量,可以抑制由反射的散射光引起的点百分比的波动,并且可以确保在旋转镜等上进行维护所需的足够的空间。 此外,通过使挡板扇形并将挡板设置在旋转镜的周边,可以可靠地遮挡反射的散射光的副扫描成分的光。

    Image scanning apparatus
    9.
    发明公开
    Image scanning apparatus 失效
    图像扫描设备

    公开(公告)号:EP0827829A1

    公开(公告)日:1998-03-11

    申请号:EP97306698.8

    申请日:1997-09-01

    发明人: Blevings, George

    IPC分类号: B41B19/00 B41B21/18

    CPC分类号: B41B19/00 B41B21/18

    摘要: Image scanning apparatus comprises an elongate image support (1) having a curved cross-section. A scanning system (7-10) is positioned radially inwardly of the support for scanning a radiation beam (11) in a circumferential direction across a record medium (2) on the support. Relative movement is caused between the support and the scanning system parallel with an axis of the support. At least one pair of axially extending resilient baffles (12-16) is mounted on axially opposed sides of the scanning system and extends close to the support to as to impede radiation reflected by a record medium on the support impinging on another part of the record medium.

    摘要翻译: 图像扫描设备包括具有弯曲横截面的细长图像支撑件(1)。 扫描系统(7-10)定位在支撑件的径向内侧,用于在支撑件上的记录介质(2)上沿圆周方向扫描辐射束(11)。 在支架和扫描系统之间产生平行于支架轴线的相对运动。 至少一对轴向延伸的弹性挡板(12-16)安装在扫描系统的轴向相对侧上并延伸靠近支撑件,以阻止由支撑件上的记录介质反射的辐射撞击记录的另一部分 中。