Canon MAXIFY MB5160 - Back of Paper Is Smudged

Back of Paper Is Smudged
Check1
Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2
Perform bottom plate cleaning to clean inside of printer.
Cleaning Inside the Machine (Bottom Plate Cleaning)
Note
•
During duplex printing or too much printing, ink may stain the inside of the printer.
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