Konica Minolta A00F011 Service Manual - Page 67
Toner flow
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magicolor 4650EN magicolor 4650DN 12. Print unit section (developing) Theory of operation Ver.1.0 Nov. 2007 12.2.3 Toner flow 1. Toner stored in the toner cartridge is agitated by the agitating blade and conveyed onto the front side of the toner cartridge by the conveyance screw. 2. Toner conveyed onto the front side of the toner cartridge is conveyed through the toner collecting port and then conveyed to the print unit collecting port. 3. The toner conveyed to the collecting port is conveyed into the toner chamber by the replenishing screw. 4. The toner level detection system provided on the front side of the developing unit (the sensor is mounted on the main body side) detects, at this time, the level of toner still available for use in the toner chamber. 5. The toner conveyed to the toner chamber is agitated (charged) by the replenishing screw and agitating screw. 6. Toner conveyed onto the rear side of the toner chamber is fed to the supply roller. 7. Toner fed to the supply roller is conveyed onto the developing roller. At this time, the regulator blade/1st and /2nd regulate the height of toner on the surface of the developing roller. 8. Toner on the developing roller is fed to the electrostatic latent image formed on the surface of the photo conductor. 9. Toner left on the developing roller is neutralized and returned to the supply roller. 10. The toner on the surface of the photo conductor is transferred onto the transfer belt. 11. Toner left on the surface of the photo conductor is scraped off by the cleaning blade. 12. The toner scraped off by the cleaning blade is conveyed to the waste toner conveyance section by the toner collecting screw. 13. The toner conveyed by the toner collecting screw is conveyed and stored as waste toner in the waste toner bottle. Toner collecting screw Composition/Operation Replenishing screw Toner collecting port Replenishing screw Agitating screw Supply roller Developing roller 32 Agitating screw K C M Y A011T2E079DA Transfer belt Photo conductor Cleaning blade Toner collecting screw