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CHAPTER 1 GENERAL DESCRIPTION
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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V. ROUTINE MAINTENANCE BY THE USER
Instruct the user to clean the following if images tend to be soiled or copy paper tends to jam
often.
1. Soiled Images
a. Copyboard Glass/Copyboard Cover
Clean the cover with a moist cloth (with water or mild detergent solution); then, dry wipe it.
b. Feeding Belt (ADF type)
b.1 Cleaning in Feeder Cleaning Mode
1) Turn on the machine, and hold down the Copy Density Mode Selection key for 4 sec or
more.
• The count/ratio indicator will indicate ‘U6’.
Figure 1-501
2) Place about 10 sheets of blank copy paper (A4/LTR) on the original tray of the ADF.
3) Press the Copy Start key.
• Copy paper will be fed from the original tray.
• The indicator flashes ‘U6’ while the feeder is being cleaned.
4) Press the Copy Density Mode Selection key to end the mode.
Caution:
• You cannot start feeder cleaning mode while the machine is making copies or if an error
exists.
• The auto power-off mechanism does not operate while feeder cleaning mode is being
executed.