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Sean AlexanderSep 23, 2025
What to do if my Riso RZ1090 Printer displays 'Wrong-Type Print Drum (Cylinder) Installed'?
- KKevin CherrySep 23, 2025
If your Riso printer displays 'Wrong-Type Print Drum (Cylinder) Installed', it means an incorrect Print Drum (Cylinder) is installed. Install a correct Print Drum (Cylinder) that is specifically designed and approved for use with this machine. Failure to do so may cause problems or damage to the machine.









