The edges of the paper are dirty
Was printing borderless or on small paper?
The platen may become dirtied by printing borderless or on small paper sizes.
Open the top cover and clean the platen.
Cleaning Inside the Top Cover
Is Extension for borderless printing in the touch screen menu set to Large or
Set Paper with adequate width in Extension for borderless printing to Small.
Is the media type specified in the printer driver the same as the media type in the printer?
Make sure the same type of paper is specified on the printer as in the printer driver.
Changing the Type of Paper
Follow the steps below to change the printer driver settings.
1. To stop printing, press the Stop button.
2. Change the type of paper in the printer driver and try printing again.
Is the paper creased or curled?
Straighten out the wrinkles or curls and reload the paper. Do not use paper that has been printed on previously.
Loading the Upper Roll on the Printer
Loading Sheets in the Printer
Is Cut-dust reduction in the touch screen menu Advanced paper settings set to ON?
A cut dust reduction line is printed at the paper cut position when Cut-dust reduction is set to ON.
If cutting dust reduction is not required, set Cut-dust reduction to OFF.