| 摘要 |
1,271,562. Electrostatic printing. RICOH K.K. April 10, 1969 [April 10, 1968], No.55143/71. Divided out of 1,271,561. Heading G2H. An electrostatic printing device comprising a rotary drum supporting a master having electrically hydrophobic image areas and electrically conductive, hydrophilic areas, means for charging the master to form a charge image thereon, means for transferring the charge image from the master to a copy sheet, means for developing the transferred image, and means for fixing the developed image.
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