Canon ImageCLASS MF7480 - Manual (Page 278)

10‑9
Maintenance
10
Close the feeder.
Be careful not to get your fingers caught.
Automatic Feeder Cleaning
If your originals have black streaks or appear dirty after scanning them through the feeder,
clean the rollers of the feeder by repeatedly feeding blank sheets of paper through it.
It takes approximately 20 seconds to clean the feeder.
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1
Press (Additional Functions).
2
3