Issue
The back side of the paper is dirty
Cause and Solution
<Cause1> The Platen has become dirty after borderless printing or printing on small paper.
<Corrective Action1>
Open the Top Cover and clean the Platen.
<Corrective Action2>
Set CarriageScanWdth to Fixed.
<Cause2> The Platen has become soiled due to printing on the Platen because width detection is deactivated.
<Corrective Action1>
Activate width detection, and open the Top Cover and clean the Platen.
<Corrective Action2>
Open the Top Cover and clean the Platen. After this, manually advance the roll onto the Platen before printing.
<Cause3> The Paper Retainer is soiled.
<Corrective Action>
Clean the Paper Retainer.