Canon PC980 Service Manual - Page 131

CHAPTER 5 PICK-UP/FEEDING SYSTEM 5. Controlling the Single-feeder Pickup Roller The single-feeder pickup roller is controlled by the pickup clutch solenoid (SL1) and the single-feeder paper sensor (PS5). When copy paper is inserted into the single-feeder, the single-feeder paper sensor turns on and the main motor starts to rotate. The drive of the main motor reaches the signal feeder pickup roller through a gear. When the single-feeder pickup roller starts to rotate, copy paper is picked up from the signal feeder and is sent as far as the registration roller, which controls the paper so that its leading edge will match the leading edge of the image on the photosensitive drum. DC controller PCB Single-feeder paper detection signal (SFPD) M1 Pickup clutch Single-feeder paper sensor SL1 PS5 Copy paper Single-feeder Pickup roller Figure 5-107 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-7