Canon NP6621 Service Manual page 155

12. Pick-Up Delay Jam (cassette unit)
Copy paper does not reach the cassette vertical path sensor (PS1cu, PS3cu, PS5cu) within a specific time
after the cassette pick-up clutch (CL1cu, CL2cu, CL3cu) has turned ON because of feeding faults.
Cassette pick-up clutch (*1)
Jam check
Cassette vertical path sensor (*2)
Cassette unit motor (M1cu/M2cu)
1 Cassette 3 pick-up clutch (CL1cu)
Cassette 4 pick-up clutch (CL2cu)
Cassette 5 pick-up clutch (CL3cu)
2 Cassette 3 vertical path sensor (PS1cu)
Cassette 4 vertical path sensor (PS3cu)
Cassette 5 vertical path sensor (PS5cu)
COPYRIGHT © 1998 CANON INC.
Copy Start key
ON
STBY INTR
1.3 sec
Figure 3-455 Sequence of Operations
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
JAM flashed
SCFW SCRV
1.3 sec
Normal Error
OPERATIONS AND TIMING
SCFW
3–99