Canon imageRUNNER ADVANCE DX C7780i Foire Aux Questions page 19

Black Streaks Appear in
Images
Solution
Is the document feed scanning area
dirty?
1. Turn OFF the machine, and unplug the power
plug from the AC power outlet.
2.
Open the feeder, and clean the lower side
document feed scanning area (a) and feeder
white plate (b) using the supplied glass-cleaning
sheet.
N O T E
Do not use glass cleaner or an alcohol solution,
etc., as they will strip away the stain-proof
coating.
b
a
3. Open the cover.
1
Wipe the thin and
long glass area
and white plate.
2
4. Open the inner cover.
5. Wipe the original scanning area and feeder
white plate.
6. Close the cover and inner cover
7. Close the feeder.
8. Insert the power plug into the power outlet, and
turn the power ON.
N O T E
If black streaks still appear after dirt removal,
perform the following procedure to execute [Clean
Feeder].
For more information User's Guide
19