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2. Product Specifications and Description
2.5.2. Imaging Unit
2.5.2.1. Drum Unit Overview
This machine has one Drum Unit and one Deve Unit.
The diameter of the drum is 60 mm (circumference: about 188.5 mm).
The drum unit has the charge roller to charge the drum surface and cleaning roller to clean the charge roller.
The CRUM is the sub part of the Drum Unit. It stores the count information and several data. If the Drum Unit is replaced,
the count information stored by the old Drum Unit could not be kept.
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Troubleshooting
