Canon NP6621 Service Manual page 118

OPERATIONS AND TIMING
Copying on the 2nd Side
(forward)
2. Sequence of Operations (two-sided; 1 copy, A4)
Registration paper sensor (PS6)
Registration roller clutch (CL1)
Delivery sensor (PS8)
Duplexing unit inlet paper sensor
(PS15)
Duplexing unit motor (M5)
Duplexing unit outlet clutch (CL4)
Duplexing unit outlet sensor (PS14)
3–62
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Figure 3-407
Copy Start
key ON
SCFW
SCRV LSTR
Figure 3-408
COPYRIGHT © 1998 CANON INC.
Copy Start key
ON (2nd side)
STBY INTR
CW rotation CCW rotation
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
SCRV LSTR STBY
SCFW