| 摘要 |
PROBLEM TO BE SOLVED: To attach a unit to a device main body in a state where appropriate positional relation between a photoreceptor drum mounted on the unit and other processing equipment is maintained. SOLUTION: The photoreceptor drum 222a is positioned in a copying machine main body 1 by a rotary driving shaft 6, and other processing equipment mounted on the processing unit 2 is positioned in the main body 1 by a boss 5 and a lock member 16. The boss 5 positions the shaft 6 in the main body 1, and the member 16 is fit to the end of the front side of the shaft 6 so as to be positioned in the main body 1 by the shaft 6, then other processing equipment mounted on the unit 2 is positioned in the main body 1 by the shaft 6 through the boss 5 and the member 16. Therefore, the drum 222a and other processing equipment which should maintain the specified positional relation each other in the main body 1 are positioned in the main body 1 by the shaft 6. |
