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1. 发明授权

US4739368A Reader-printer apparatus and method for variable length copying of information on a standard sheet length 失效
标题翻译：用于在标准纸张长度上对信息进行可变长度复印的读取器 - 打印机设备和方法
公开(公告)号：US4739368A
公开(公告)日：1988-04-19
申请号：US853590
申请日：1986-04-18
申请人： Eugene W. Lachut , Francis L. Soucy , Bruce A. Holroyd , Richard E. Brown
发明人： Eugene W. Lachut , Francis L. Soucy , Bruce A. Holroyd , Richard E. Brown
IPC分类号： G03B27/32 , G03B21/11 , G03G15/04 , G03G15/043 , G03G15/22 , G03G15/00
CPC分类号： G03G15/223 , G03B21/118
摘要： A microform reader-printer apparatus includes a viewing screen having ruler-like fiducial marks that are indicative of distance from an edge of an image frame being viewed. The apparatus includes a keyboard permitting the operator to input data to a printer control regarding the portion of the image frame which is desired to be copied by the printer. In the printing mode the portion of the image frame selected for reproduction is printed using an electrophotographic reproduction engine. An electro-static image of the image selected for reproduction is formed on a photoconductive drum by translating a pair of scanning mirrors. Means including a notched bracket movable with the scanning mirror is provided for controlling the "on" time of a projection lamp and/or corona charger so that electrostatic image formation occurs only for the portion of the image frame selected for reproduction. Adjustments to lamp "on" time are also made for different lamp brightness readings, since brighter lamps take a longer time to quench. Means are also provided for controlling lamp brightness in accordance with the exposure requirements of the portion selected for reproduction. The electrostatic image is then developed and transferred to a standard size copy sheet. The copy sheet thus includes only the image area selected for reproduction and clear areas upon which notes or comments may be written.
摘要翻译：微型读取器 - 打印机设备包括具有尺寸基准标记的观察屏幕，其指示与正在观看的图像帧的边缘的距离。该装置包括一个键盘，允许操作者向打印机控制器输入关于期望由打印机复制的图像帧部分的数据。在打印模式中，使用电子照相再现引擎打印选择用于再现的图像帧的部分。通过平移一对扫描反射镜，在感光鼓上形成选择用于再现的图像的静电图像。包括可移动扫描镜的切口支架的装置被设置用于控制投影灯和/或电晕充电器的“接通”时间，使得仅对于用于再现的图像帧的部分进行静电图像形成。对于不同的灯亮度读数，也可对灯“开”时间进行调整，因为更亮的灯需要更长的时间来淬火。还提供了用于根据选择用于再现的部分的曝光要求来控制灯的亮度的装置。然后将静电图像显影并转移到标准尺寸的复印纸上。因此，复印件仅包括选择用于再现的图像区域和可写入注释或注释的清晰区域。

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