Outline - Canon Image Reader-A1 iR5000i Service Manual

CHAPTER 5 PICK-UP/FEEDING SYSTEM

4.1.3 Outline

The feeding path for the first side of a double-sided print is formed when the delivery
flapper solenoid (SL5) tuns off and the reversing flapper solenoid (SL8) turns on, thereby
shifting up the delivery flapper and the reversing flapper.
When the leading edge of a sheet after printing on its first side reaches the delivery as-
sembly jam sensor (PS48), the reversing flapper solenoid turns on. After the delivery assem-
bly jam sensor (PS48) turns on and when the paper reaches a specific point, the reversal mo-
tor (M14) starts to rotate to move the paper to the duplexing reversing assembly.
When the paper moves past the reversal sensor 2 (PS38) and reaches a specific point, the
reversal motor (M19) stops to rotate, holding the paper in wait in the reversing assembly.
When the reversal motor (M14) starts to rotate once again (in reverse this time), the paper
in the reversing assembly is moved to the duplexing wait position by the work of the
duplexing feed left/right roller, which is driven by the duplexing feeding left/right motor
(M29, M18).
The duplexing feed right roller also causes the paper to arch while moving it, thereby re-
moving the skew. The horizontal registration operation is executed in 100 msec after the pa-
per is made to arch.
Thereafter, the duplexing feed left/right motor (M29, M18) turns on once again to feed
the paper to the duplexing wait position.
In thick paper mode, the paper is not arched.
Memo
5-28 P
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001