12
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DEVELOPMENT SYSTEM
12 - 1
12. DEVELOPMENT SYSTEM
12.1 Configuration
The developer unit in this equipment has a recovered toner supply mechanism which recovers the
recovered toner scraped off by the drum cleaning blade and recycles the recovered toner. The devel-
oper unit is driven by the main motor to rotate the mixers and developer sleeve.
Development system consists of the following unit, components and control circuits.
• Toner cartridge drive unit / Toner cartridge installation switch
• Temperature/humidity sensor ( P.11-1 "11. DRUM RELATED SECTION")
• Developer unit
- Developer material
- Mixers -1, -2 and -3
- Developer sleeve (magnetic roller)
- Doctor blade
- Auto-toner sensor
- Drum thermistor ( P.11-1 "11. DRUM RELATED SECTION")
- Recovered toner supply mechanism (paddle, toner recycling auger)
- Toner recovery roller
Fig. 12-1
Doctor blade
Drum thermistor Drum
Mixer-3
Mixer-2 Mixer-1
Tone r
recovery roller
Developer sleeveAuto-toner sensor
Paddle
Toner recycling auger
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