Canon IMAGEFORMULA DR-2020U - Manual (Page 61)

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2
Close the feeder gently.
CAUTION
When closing the feeder, be careful not to get your fingers caught, as
this may result in personal injury.
Cleaning the Roller Unit and
Separation Pad
If streaks appear in scanned images, or if scanned documents
become dirty, the roller unit and separation pad may be dirty. Be sure
to clean them regularly.
Hint
The roller unit and separation pad are located inside the feeder
cover. Be sure to remove the roller unit and separation pad, as shown
below, before cleaning them.
Removing the Roller Unit and Separation
Pad
1
Open the document feed tray and feeder cover.
2
Raise the roller unit’s lock lever. (Gently bend the lock
lever inward, then raise it.)