| 摘要 |
PROBLEM TO BE SOLVED: To improve operability in ejecting/inserting a unit.SOLUTION: A unit attachable to/detachable from an apparatus body includes a coupling for receiving rotary drive from the apparatus body. The apparatus body also includes a coupling which is engaged with the coupling of the unit. At least one of the couplings can be pressed in parallel with a rotary shaft and one of the couplings includes a slope. When attaching/detaching the unit, one coupling is pushed by the slope and pressed on, thereby disengaging the couplings. |
