| 摘要 |
<p>PURPOSE:To secure the accuracy of a position at the time of attaching and detaching a photoreceptor, by having constitution in which a belt unit of the photoreceptor converted to in a cassette and a developing unit are unified by clamp to fit in on a main body. CONSTITUTION:When the restraint by a pin of a tension lever 29 is released, a tension roller 23 is pushed by a spring 32 and a belt 2 of the photoreceptor is stretched. When a belt unit 1 is pushed into a main body of a copying machine while putting a guide pin 31 along a rail 35, a crank pin 36 is engaged to a blanket 37 and a correct position is determined. A developing unit 6 is fitted to the main body by engaging a channel 38 to a pivot 39 and rotating a crank lever 40 and pushing a crank pin 42 by a crank spring 41. When a belt unit made in a cassette is fitted to the main body by such a way, as the belt unit is made in one body with the developing unit by a clamp means, the accuracy of a position at the time of attaching and detaching a photoreceptor is secured easily.</p> |
