| 摘要 |
PROBLEM TO BE SOLVED: To realize miniaturization of a device main body without causing cost increase or deterioration in an assembling property. SOLUTION: A pressure releasing cam 45c on a driving source side is excessively rotated from a predetermined separated position in consideration of fitting backlash, engagement backlash of gears, torsion of a shaft, or the like. Thus, the pressure releasing cam 45c on a non-driving side can push a separation member to the predetermined separated position. COPYRIGHT: (C)2007,JPO&INPIT
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