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OUTLINE OF THE MACHINE
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3.13 DEVELOPMENT SYSTEM
3.13.1 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
developer unit is driven by the main motor to rotate the mixers and developer sleeve.
Fig. 3-33
3.13.2 Construction
Developer unit Developer material PM parts
Mixers-1, -2 and -3
Developer sleeve (Magnet roller)
Doctor blade
Auto-toner sensor S4
Drum thermistor THMS4
EPU memory board EPU
Recovered toner supply mechanism
(Toner recycling auger)
Toner cartridge Toner cartridge PC board CTRG
Toner cartridge interface PC board CTIF
Toner motor M4
Doctor blade
Drum
Developer sleeveAuto-toner sensor
Mixer-3
Mixer-1Mixer-2
Drum thermistor
Toner recycling auger
Toner
recovery roller
(35ppm/45ppm/50ppm)
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