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    • 2. 发明授权
    • Charge retention xeroprinting
    • 充电保持打印
    • US4967236A
    • 1990-10-30
    • US457614
    • 1989-12-27
    • Orville C. RodenbergWilliam MeyFrancis M. PaczkowskiSalvatore Leone
    • Orville C. RodenbergWilliam MeyFrancis M. PaczkowskiSalvatore Leone
    • G03G15/22
    • G03G15/228
    • Xeroprinting is performed without fusing a master toner image. A master toner image is made by conventional electrophotography, for example, by charging, imagewise exposing and applying toner to a photoconductive imaging member to create a first toner image. The first toner image is charged with charges of a first polarity opposite that of the toner image and the member is erased with erase illumination through its base. This creates a toner image with a charge opposite that of the original toner image which is tightly held by opposite charges which have migrated to the portion of the electrophotosensitive member just under the toner. The imaging member is then toned again with toner of the same polarity as the original toner to create a second toner image that overlies the first toner image. The imaging member is again erased through its base, and the second toner image is transferred to a receiving sheet without disturbing the first toner image. The toner image may then be used as a master to repeat the process but without the necessity of creating the master toner image again.
    • 执行Xeroprinting而不熔化主色调图像。 通过常规的电子照相术,例如通过对感光成像构件进行充电,成像曝光和施加调色剂以产生第一调色剂图像来制成主调色剂图像。 第一调色剂图像用与调色剂图像相反的第一极性的电荷充电,并且通过其基底通过擦除照明擦除该部件。 这产生具有与原始调色剂图像的电荷相反的电荷的调色剂图像,该原始调色剂图像被刚好在调色剂下方的迁移到光电敏感部件的部分的相反电荷紧密地保持。 然后再次用与原始调色剂极性相同的调色剂调色成像构件,以产生覆盖在第一调色剂图像上的第二调色剂图像。 成像构件再次通过其底座擦除,并且第二调色剂图像被转印到接收片材上,而不会干扰第一调色剂图像。 然后可以将调色剂图像用作母版以重复该过程,但不需要再次创建主色调剂图像。