Detecting The Locking Of The Waste Toner Feeding Screw - Canon NP6045 Service Manual

D. Detecting the Locking of the Waste Toner Feeding Screw
If, for some reason, the waste toner pipe becomes clogged with waste toner and the
waste toner feeding screw is prevented from rotation, the waste toner can fall out of the
pipe.
To prevent such a problem, a feeding screw locking detection mechanism is
provided.
The gear (Figure 4-210) for the waste toner feeding screw is subjected to a force
in the direction of the axis when the feeding screw gets locked and is moved along the
axis.
The movement of the gear
detection switch (MS4).
When MS4 is pushed by the gear
cation (E013) will be indicated on the control panel.
Cleaning assembly waste
toner feeding screw
Waste toner feeding screw
Waste toner pipe
Waste toner case
COPYRIGHT © 1997 CANON INC.
is monitored by the waste toner feeding screw locking
, the main motor (M1) stops, and an error indi-
Cleaning assembly
Figure 4-210 (rear view)
CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4 IMAGE FORMATION SYSTEM
DC controller PCB
Waste toner feeding screw
locking detection (MS4)
Gear A
If the waste toner feeding screw
gets locked, the gear A moves in
the direction of the arrow.
M1
Main motor
4-35