When the printer is polluting your media with for example uncured ink or glue, check the buffer plate. In case of pollution, you can clean the buffer plate.
Video: Clean the buffer plate
Use Colorado M-series prescribed:
Microflex gloves for handling ink
Lint free cloths
Cleaning liquid (IPA)
For information on the prescribed maintenance materials, see List of Colorado M-series maintenance materials.
Wear the prescribed gloves when contact with ink or maintenance materials is possible. Gloves should always overlap sleeves. Follow the Safety Data Sheets (SDS) guidelines carefully in order to ensure maximum safety.
Use the prescribed cleaning liquid. Do not use any other cleaners.