Detecting The Waste Toner Feeding Screw (Locking) - Canon NP6251 Service Manual

CHAPTER 4 IMAGE FORMATION SYSTEM
D. Detecting the Waste Toner Feeding Screw (locking)
If the waste toner pipe becomes stopped up by waste toner inside it and, as a result,
the rotation of the feeding screw is hindered, waste toner can start to pour out because
of feeding faults.
To prevent such a problem, the machine is equipped with a feeding screw detection
mechanism.
The gear (Figure 4-210) used to drive the waste toner feeding screw becomes
subject to force in the axial direction, and slides along the shaft.
The movement of the gear
detecting switch (MS4). When MS4 is pushed by the gear
stop, and the DC controller will indicate 'E013' on the control panel.
Cleaning assembly
waste toner feeding
screw
Waste toner feeding screw
Waste toner pipe
Waste toner
4-38
COPYRIGHT © 1997 CANON INC.
Download service manual and resetter printer at http://printer1.blogspot.com
is monitored by the waste toner feeding screw
Cleaning assembly
When the waste toner
feeding screw becomes
locked, the gear A will
slide in the direction of
Figure 4-210 (rear view)
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
, the main motor (M1) will
DC controller PCB
Waste toner feeding
screw detection (MS4)
Gear A
the arrow.
M1
Main motor