Canon MX720 Series, Online Manual, Page: 130 / 248

Cleaning the ADF (Auto Document Feeder)
Important
Be sure to turn off the power and disconnect the power plug before cleaning the machine.
- The power cannot be turned off while the machine is sending or receiving a fax, or when unsent
faxes are stored in the machine's memory. Make sure if the machine completed sending or
receiving all the faxes before disconnecting the power plug.
- The machine cannot send or receive faxes when the power is turned off.
- If the power plug is disconnected, the date/time settings will be reset and all documents stored in
the machine's memory will be lost. Send or print a necessary document, or save it on a USB flash
drive before disconnecting the power plug.
Do not use tissue paper, paper towels, rough-textured cloth, or similar materials for cleaning so as
not to scratch the surface. Paper tissue powder or fine threads may remain inside the machine and
cause problems such as print head blockage and poor printing results. Be sure to use a soft and dry
cloth.
Never use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean
the machine, as this may cause a malfunction or damage the surface of the machine.
1. Open the document tray.
2. Open the document feeder cover.
3. With a soft, clean, lint-free and dry cloth, wipe off any paper dust from the inside of
the document feeder cover
(A) .