Fixing Oil Applying Mechanism - Canon 1130 Service Manual

Fixing upper
cleaning belt
C. Fixing Oil Applying Mechanism
The copier uses a circulatory method to apply fixing oil, and oil is applied directly to the fixing
upper roller and spread by oil applying felt to prevent offset.
The fixing oil inside the oil tank is drawn by means of an oil pump (PSP1; piezoelectric
oscillator type), and is supplied to the fixing upper roller.
The oil pump consists of a piezoelectric element and backflow preventing valves (one each on
the suction and discharge sides). The piezoelectric element warps to take on a convex or concave
shape when a voltage is applied, servicing to move fixing oil from the suction side to the discharge
side by repeating this operation.
The filter inside the oil pan serves to clean the fixing oil in circulation. Foreign matter and
excess fixing oil are moved away to the oil pan by the fixing blade.
The level of fixing oil inside the oil tank is monitored by a fixing oil level sensor (PS10) of a
reflecting type found inside the oil tank; when the fixing oil is more than a specific level, the light
directed by PS10 to the oil is reflected and received by PS10 (fixing oil detection signal FXOILD=1).
If PS10 does not detect fixing oil for about 10 sec, the copier will indicate the Add Fixing Oil
message on its control panel.
COPYRIGHT © 2002 CANON INC.
(front)
Arm
Figure 8-202
CANON CLC1100/1130/1150/1160/1180 REV.1 JAN. 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 8 FIXING SYSTEM
Fixing upper cleaning
belt length sensor (PS11)
Fixing lower cleaning belt
(rear)
Arm
Fixing lower cleaning
belt length sensor (PS67)
8-7