Canon imageCLASS MF753Cdw Multifunction Wireless Color Laser Printer - Manual (Page 663)

Smudge Marks Appear on the Back Side of Printouts
84CU-0R2
Troubleshoot by checking in the following order:
Are You Using Paper That Is Smaller Than the Size of the Print Data?
Replace with paper that is the same size as the print data. Loading Paper(P. 131)
Have You Cleaned the Fixing Assembly?
These symptoms may occur when the fixing assembly is dirty. In this case, clean the fixing assembly.
Cleaning the Fixing Assembly(P. 599)
Have You Cleaned the Transfer Belt?
These symptoms may occur when the transfer belt is dirty. In this case, clean the transfer belt. Cleaning the
Transfer Belt(P. 600)
Troubleshooting
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