Smudge Marks Appear on the Back Side of Printouts
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
Perform Countermeasures to Stains on Printed Images.
Setting [Prevent Stains on Printed Images] to [On] may improve the situation.
Touch Panel Model
[Home] on the control panel  [Menu] [Adjustment/Maintenance] [Adjust Image Quality] [Special Processing] [Prevent Stains on Printed Images] [On] |
5 Lines LCD Model
 on the control panel [Adjustment/Maintenance]  [Adjust Image Quality] [Special Processing] [Prevent Stains on Printed Images] [On] |
* When you select [On], the printing speed may decrease.
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