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PROCESS
OUTLINE AND COMPOSITION
In this digital copying machine, optical data (light beam) reflected from the original is converted into electrical signals, subjected to
image processing, then converted back into optical data (light beam) and directed onto the drum.
Figure 1 shows the composition of the machine, and Fig.2 an outline of the digital copying process.
Fig.1
Electrical signal
Image read Image processing
Original
Optical data
Electrical signal
Image write
Optical data
PCL Charging
Developing
Cleaning
Fixing
Separation ← Transfer corona
Fig.2
Polygon mirror
Developing unit
PCL
Image processing unit
Fixing unit
Cleaning
unit
Separation
corona unit
Transfer
corona unit
OPC drum
TSL
Charging corona unit
Image read unit
Image write unit
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