Electrostatic printing |
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| 申请号 | US40118853 | 申请日 | 1953-12-30 | 公开(公告)号 | US2758939A | 公开(公告)日 | 1956-08-14 |
| 申请人 | RCA CORP; | 发明人 | SUGARMAN JR MEYER L; | ||||
| 摘要 | |||||||
| 权利要求 | 1. A METHOD OF ELECTROSTATIC PRINTING COMPRISING PROJECTING A LIGHT IMAGE UPON A LAYER OF A PHOTOCONDUCTIVE INSULATING DEVELOPER POWDER, CHARGING IN ONE POLARITY THE DEVELOPER POWDER LYING IN THE ILLUMINATED AREAS OF THE LIGHT IMAGE, AND THEN ESTABLISHING AN ELECTRIC FIELD ACROSS SAID DEVELOPER POWDER LAYER WHEREBY THE CHARGED DEVELOPER POWDER IS ATTRACHED AWAY TO A REGION OF OPPOSITE POLARITY. |
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| 说明书全文 | |||||||
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