Canon TR150 Series Online Manual page 94

If the problem is not resolved after cleaning the paper feed roller, turn off the power, unplug the power cord,
then wipe the paper feed roller (A) located on the right side inside the rear tray with a moistened cotton
swab or the like while rotating them manually. Do not touch the roller with your fingers. Rotate the roller two
or more times.
After cleaning the paper feed roller with a cotton swab, turn on the power, then clean the paper feed roller
again.
If the problem is not resolved after cleaning the paper feed roller, contact your nearest Canon service center
to request a repair.
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