4. PCU (PHOTOCONDUCTOR UNIT)
4.1 OVERVIEW
The PCU consists of the components shown in the above illustration. An
organic photoconduntor (OPC) drum (diameter: 30 mm) is used in this
machine.
1. OPC Drum 8. Toner Collection Coil
2. Doctor Blade 9. Cleaning Blade
3. Developer Cartridge 10. Charge Roller Thermistor
4. TD Sensor 11. Charge Roller
5. Mixing Auger 1 12. Charge Roller Cleaning Pad
6. Mixing Auger 2 13. Humidity Sensor
7. Development Roller
The output of the humidity sensor is used for toner density control processing.
12
10
13
8
9
7
5
6
4
3
2
1
11
A193D010.wmf
1 August 1996 PCU (PHOTOCONDUCTOR UNIT)
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