Transfer Belt Drive Mechanism - Ricoh G147 Service Manual

6.12.2 TRANSFER BELT DRIVE MECHANISM

After the main motor switches on during printing, the transfer belt contact clutch [A] switches
on after a specified interval and the cam [F] makes a half-turn to raise the contact lever [E]
and bring the transfer belt [D] into contact with the drum.
The actuator [C], on the same axis as the cam, and the transfer belt position sensor [B]
detect whether the drum and transfer belt are in contact.
When the main motor is off, or when the ID sensor pattern is being measured, the transfer
belt unit separates from the drum. The ID sensor pattern must not be transferred to the belt.
Also, the transfer belt and drum must not remain in contact for too long, to prevent
contamination of the drum with oil or other foreign material from the transfer belt.
SM 6-51 G147