Driving The Fixing Cleaning Web - Canon CLC5000 Service Manual

6.9 Driving the Fixing Cleaning Web

a.Upper Fixing Web
The upper fixing web used to clean the fixing roller is taken up 0.56 mm each time the
upper fixing web take-up solenoid (SL3) turns on and off.
The fixing web take-up solenoid turns on once for every 8 sheets of paper (small-size,
smaller than A3).
The end of the web is provided with a cut-off to enable detection of its length. When the
web is taken up as far as the cut-off, the arm supported by the web falls through the cut-off,
causing the web length sensor (PS36) to turn on; as a result, the control panel will indicate
an alarm.
The upper web moves away from the upper fixing roller when the upper fixing web re-
leasing solenoid (SL4) turns on.
b. Lower Fixing Web
The lower fixing web is used to clean the lower fixing roller by the drive of the lower fix-
ing web motor (M30).
The lower fixing web motor is used to take up the lower fixing web 0.04 mm for each
sheet of paper. Dirt left behind the web is scraped off by the lower fixing blade operated by
the work of a spring. The lower fixing web is not equipped with a detection mechanism, and
it must be replaced whenever the upper fixing web is replaced.
Upper fixing web
1. 'E005' will be indicated when the upper fixing web take-up solenoid
turns on and off about 270 times after the Replace Web message has
been indicated on the control panel.
2. The web is 7.4 m long, and a cut-off is found 7.1 m from its lead edge.
3. After replacing the upper and lower fixing webs, be sure to execute the
following in service mode and turn off and then on the power switch:
FUNC>FUSER>E005-RLS.
COPYRIGHT © 2001 CANON INC.
Sensor arm
F02-609-01
2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
CHAPTER 2 NEW FUNCTIONS
(front of machine)
Web length sensor
2-133