Canon imageFORMULA DR-4010C Reference Manual page 41

4
Dampen a cloth with water, wring it out thoroughly, and then wipe
the rollers of the upper unit while turning them.
Do not try to turn the rollers in the lower part of the scanner. Clean
these rollers simply by wiping the exposed part.
IMPORTANT
• Do not use detergent to clean the rollers, since any detergent
remaining on the rollers could cause a feeding error.
• Do not try to turn the rollers in the lower part of the scanner.
Turning these rollers by force may damage them and lead to
feeding errors.
5
Remove the roller unit and the retard roller for cleaning.
(See "Cleaning the Roller Unit," on p. 38 and "Cleaning the Retard
Roller," on p. 40.)
CAUTION
When removing or installing the roller unit or retard roller, do
not use excessive force, as this may damage the scanner.
6
Make sure that the upper unit is completely closed by pushing on
both edges with both hands until you hear a click.
CAUTION
When closing the upper unit, be careful not to get your fingers
caught, as this may result in personal injury.
Clean while turning
Clean only
exposed part
Maintenance 37