Canon C70 - Manual (Page 285)

Chapter 12 Maintenance 12-11
Maintenance
6. When you are finished, close the operation panel by pressing it
down from the centre as shown.
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Be sure to close the operation panel until it locks into place, or the unit
will not function properly.
7. Plug the unit back in.
Cleaning the Rollers
You will need to clean the unit’s rollers after using a package of High
Resolution Paper HR-101. This process removes paper dust from the
printer’s rollers, preventing paper feed problems. For details, refer to
Using the Cleaning Sheet on page 5-22.