General Procedures and Information
FaxCentre 2121/2121L 11/06 6-57
• The imaging cartridge consists of a T/C (Toner Cartridge) and a D/C (Drum Cartridge) (see
the illustration below).
Figure 3
Figure 4
Drum
• The Drum used in this printer is the organic photoconductor (OPC) type.
• The drum consists of two layers - Charge Transport Layer (CTL) and the Charge Generating
Layer (CGL) - applied to an aluminium alloy base (cylinder).
Handling precautions
The Drum of this type exhibits light fatigue after being exposed to light for a long time, which re-
sults in its sensitivity being changed. Therefore, always wrap the drum in the drum cloth or a soft
cloth immediately after it has been removed from the printer. Use utmost care to prevent the sur-
face of the Drum from being dirtied.
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