- CANON ELECTRONICS INC. Scanner User Manual

5-6
Chapter 5 Maintenance
3. Wipe any dust off the scanning glass with a clean, dry
cloth.
4. Press the Stop key to turn off the lamp.
5. Carefully lower the upper unit (a). Press down on
both sides of the upper unit to ensure that it is
securely closed. (b)
Cleaning the Platen Rollers
The platen rollers are located near the upper and lower sides
of the scanning glass to brush away dust as the rollers turn
before scanning, and to provide the selected background
(white or black) for document images.
Clean the platen rollers periodically using the following
procedure.
Hint
The platen rollers are cleaned by wiping while rotating the rollers in
three stages.
1. Carefully raise the upper unit until it stops.
2. Press and hold the Stop key on the control panel for
approximately seconds.
Each time you press the Stop key, the upper and lower
platen rollers rotate in the following order: black ➔ white
➔ brush.
IMPORTANT
• Be careful not to touch the platen roller while it is turning.
• Always use the Stop key to turn the platen roller. Attempting
to turn the roller by hand may cause damage.
Stop Key
Stop Key
Platen Rollers (Black/White
Background Rollers)
White
Brush
Black