Originally Posted by
slimslob
To my knowledge there is no replacement part for the charge rollers on Ricoh color machines. If the charge roller is indeed cracked, you need to replace the drum unit. If it is a color drum, there are a number of threads on modifications to use a Black drum to replace a color drum. If the charge roller is just dirty, the assembly holding the charge roller and cleaning roller can be removed from the bottom of the drum unit. On older style drum units, there are three tabs that lock into a flexible plastic piece. Release the tabs and rotate the unit up and lift it out. Be careful. If you break the tabs or the pivot pins, you will need to replace the entire drum unit. The newer units have two screws holding the end closest to the developer and three tabs. After removing the screws and releasing the tabs the unit lifts out. To clean the charge roller, rotate a sheet or two of paper between the charge roller and charge cleaning brush roller to keep the brush roller dry. Use a clean soft cloth or paper towel. Moisten it with water, do not over moisten. Wipe the roller from end to end, turning the roller slightly between pass. Once you have cleaned the entire roller surface, let it dry before removing the paper. When removing and reinstalling the charge assembly, do not bend the charge contact that is on one end. If the problem returns, or if the drum unit has over 80K on it replace the drum unit.
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