Canon PIXMA MG4200 Series On-Screen Manual page 149

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Document Cover
C151
Cleaning the Platen Glass and Document Cover
Important
Be sure to turn off the power and disconnect the power plug before cleaning the machine.
Do not use tissue paper, paper towels, rough-textured cloth, or similar materials for cleaning so as
not to scratch the surface. 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.
With a soft, clean, lint-free and dry cloth, wipe the platen glass
cover (white sheet) (B) gently. Make sure not to leave any residue, especially on the glass surface.
Important
The inner side of the document cover (white sheet)
> Maintenance > Cleaning the Machine
(B) is easily damaged, so wipe it gently.
> Cleaning the Platen Glass and
(A) and the inner side of the document
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