Back Of The Paper Is Smudged - Canon PIXMA iP2850 Online Manual

Back of the Paper Is Smudged

Did you confirm the paper and print quality settings?
Check1
Print Results Not Satisfactory
Perform the Bottom Plate Cleaning to clean the inside of the printer.
Check2
Cleaning Inside the Printer
Note
• When performing duplex printing or too much printing, the inside may become stained with ink.
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