Why is the back of printed copies smudged with ink on my Riso EZ 330 All in One Printer?
- PPaul JonesAug 6, 2025
If the back of your printed copies from the Riso All in One Printer is smudged with ink, it is likely that the Pressure Roller has been stained. To resolve this, remove the Print Drum (Cylinder) and clean the Pressure Roller.