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1151SBMOSO0A
The photoconductive drum used in this copier is the organic photoconductor (OPC)
type. The drum is made up of two distinct, semiconductive materials on an alumi-
num alloy base. The outer of the two layers is called the Charge Transport Layer
(CTL), while the inner layer is called the Charge Generating Layer (CGL).
The PC Drum has its grounding point inside at its rear end. When the Imaging Unit
is installed in the copier, the shaft on which the PC Drum Drive Coupling Gear is
mounted contacts this grounding point.
Handling
Precautions
This photoconductor exhibits greatest light fatigue after being exposed to light over
an extended period of time. It must therefore be protected from light by a clean, soft
cloth whenever the Imaging Unit has been removed from the copier. Further, use
utmost care when handling the PC Drum to prevent it from being contaminated.
PC Drum Cross-Sectional View
PC Drum
CTL
CGL
Aluminum
Cylinder
OL:
Gear
Shaft
1159SBMO600A
me IMAGING UNIT
This copier is equipped with an Imaging Unit, or IU, which integrates a PC Drum,
PC Drum Charge Corona, Developing Unit, Cleaning Unit, and Toner Recycling
mechanism into one assembly. The Unit also includes the Upper Synchronizing
Roller which facilitates clearing of a paper misfeed.
Developer
Mixing
Chamber
1159MO43AA
Corona
Upper Synchronizing Roller
Coupled to Gear
M-9
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