Canon imageFORMULA CR-135i Operation & Maintenance Manual page 18

8
Close the Front Maintenance Cover in the order shown in
the diagram below.
9
Replace the Roller Cover.
10
Carefully replace the Top Cover.
IMPORTANT
If paper jams and double feeds (two papers being fed at the same
time) still occur after cleaning the rollers, the rollers may be worn. The
rollers need to be changed. Some rollers are replaceable. (See
"Replacing the Rollers" on p. 26.) If the rollers are not replaceable,
contact your local authorized Canon dealer or service representative
to have the scanner serviced.
18