When you see your print is polluted with a clear ink stamp coming from the guide plate, you must clean the guide place and replace the foams and roller assy.
Use Océ Colorado 1640 prescribed:
Nitrile gloves for handling ink
Lint free cloths and swabs
Cleaning liquid (IPA)
For information on the prescribed maintenance materials, see List of Océ Colorado 1640 maintenance materials.
Wear the Océ Colorado 1640 prescribed nitrile gloves. You can only wear the gloves for ten minutes. After ten minutes you must put on new gloves to prevent contact with the ink.
If necessary, dampen the cloth with the cleaning liquid to remove any remaining ink.
Use the prescribed cleaning liquid. Do not use any other cleaners.