Locking Operation (Fixing/Feeding Unit) - Canon NP6251 Service Manual

CHAPTER 6 FIXING SYSTEM
G. Locking Operation (fixing/feeding unit)
If copy paper is trapped over the fixing/feeding unit and the holding tray unit when
the machine is stopped because of a jam, i.e., if paper is over the internal delivery sensor
(PS12), the main motor (M1) and the fixing/feeding unit locking solenoid (SL13) is turned
on for about 3 sec, thereby lowering the locking lever from the fixing/feeding unit to the
rear of the holding tray unit.
Because of the foregoing design, the holding tray unit will also slide out when the
fixing/feeding unit is drawn out for removal of the jam, thereby preventing tearing the
copy paper over two units.
This locking mechanism is released during initial rotation of the main motor after jam
removal.
Spring clutch
Fixing/feeding
assembly
Holding tray
assembly
6-14
COPYRIGHT © 1997 CANON INC.
Fixing/feeding unit locking solenoid drive signal
Fixing/feeding unit locking
solenoid (SL13)
M1
Main motor
Locking lever
Figure 6-108
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
J108B-2
(FFULSD)