Canon PC940 Service Manual - Page 140

CHAPTER 5 PICK-UP/FEEDING SYSTEM 5. Registration Paper Delay Jam After reaching the vertical path roller paper sensor, if copy paper fails to reach the pre-registra- tion roller paper sensor within a specific period of time, the machine will identify the condition as a registration paper delay jam, stop the operation immediately, and flash the Jam indicator. SCRV SCFW indication SCRV Vertical path roller paper sensor (PS4) Jam check Pre-registration roller paper sensor (Q751) Main motor (M1) 2.6sec Normal 2.6sec Jam 1.5sec Figure 5-121 6. Registration Paper Stationary Jam If copy paper does not move past the pre-registration roller paper sensor within a specific period of time because of feeding faults, the machine will identify the condition as a registration paper stationary jam, stop the operation immediately, and flash the Jam indicator. Copy Start key ON STBY INTR SCFW SCRV indication SCFW Registration clutch solenoid (SL2) Jam check Pre-registration roller paper sensor (Q751) Main motor (M1) 4.6sec Normal 4.6sec Jam 1.5sec Figure 5-122 5-16 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)