Canon imageRUNNER ADVANCE 4551i III Guía De Preguntas Frecuentes página 17

If the DADF-AV is attached to the
imageRUNNER ADVANCE 4535i III/4525i III :
1.
Open the feeder, and clean the lower side
document feed scanning area 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.
2.
Close the feeder.
N O T E
If black streaks still appear after dirt removal,
perform the following procedure to execute [Clean
Feeder].
User's Guide
For more information
17