Canon PC770 Service Manual - Page 98
Canon PC770 Manual
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iMMOPERATIONS AND TIMING 3. Pick-Up Stationary Jam If copy paper does not move past the registration sensor because of a feeding problem, the copier identifies a pick-up delay jam, stops copying operation, and flashes the Jam message. (This detection is not executed in singlefeeder mode.) Copy Start key ON V STBY INTR SCFW SCRV SCFW Registration clutch solenoid (SL2) Jam check Registration sensor (Q751) Main motor (M1) 5.0 sec 4 Normal Figure 3-426 5.0 sec S 4 Jam s1e.5c 4. Delivery Delay Jam If copy paper does not reach the delivery sensor within a specific period of time because of a feeding problem, the copier identifies a delivery delay jam, stops copying operation, and flashes the Jam message. Copy Start key ON 81, V STBY INTR SCFW SCRV SCFW Registration clutch solenoid (SL2) Jam check Delivery sensor (PS4) Main motor (M1) 3.4 sec Normal 3.4 sec 4 Jam s1e.5c Figure 3-427 5. Delivery Stationary Jam If copy paper does not reach the delivery sensor within a specific period of time because of a feeding problem, the copier identifies a delivery stationary jam, stops copying operation, and flashes the Jam message. SCFW SCRV SCFW SCRV SCFW Jam check Delivery sensor (PS4) Main motor (WI) 4.3 sec I. 4.3 sec II 4 Normal I Figure 3-428 Jam sec 3 - 58 COPYRIGHT 1994 CANONINC. CANON PC720/740R501770REV.OAUG.1994 PRINTEDIN JAPANDMPRIMEAUJAPON)