| 摘要 |
FIELD: facsimile receivers. SUBSTANCE: device has driving gear rotated by first drive, first gear for rotating drive roller to transmit document to contact image sensor. In the process, contact image signal shaper reads out, codes, compresses, and transmits document data. Second gear is provided to vary driving track according to direction of rotation of driving gear; there is also third gear locked or separated from first one according to direction of rotation of second gear which varies machine resolution. EFFECT: simplified design of device. 4 cl, 4 dwg
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