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OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
1. After the Copy Start key is pressed for the second side, the set-back roller and the duplexing unit outlet
roller rotate clockwise.
2. When the first copy paper reaches the duplexing unit outlet sensor, the set-back roller and the duplexing
unit outlet roller stop; the outlet roller duplex rotates.
Figure 3-422
Figure 3-423
3. When the trailing edge of the first copy paper leaves the set-back roller, the set-back roller rotates
counterclockwise, thereby returning the second copy paper.
Figure 3-424
Set-back rollers Outlet roller duplex (CL4)
Slip roller
Set-back roller
Photosensitive
drum
Duplex exit detect sensor (PS14)