Making Two-Sided Copies (1Copy) - Canon NP6621 Service Manual

B. Making Two-Sided Copies
(1 copy)
1. Outline
The copy paper takes the following path.
When copying on the first side, the delivery roller
reverses after the paper from the fixing assembly
has moved past the delivery sensor; the paper is
Copying on the 1st Side
Copy exit sensor
Outlet solenoid
Outlet motor
(forward)
(reverse)
COPYRIGHT © 1998 CANON INC.
Fixing film
Figure 3-405
Set-back rollers
Duplex inlet
sensor
Figure 3-406
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
then sent to the duplexing unit. The paper stops
several millimeters in front of the duplexing unit
outlet paper sensor (PS14) and waits for copying on
the second side.
The duplexing unit is capable of accommodating
10 sheets of A4, A4R (2 sheets of A3).
Registration
Separation
sensor roller
Outlet
roller
Duplex exit detect
sensor
OPERATIONS AND TIMING
Registration
paper sensor
3–61