Theory of Operation
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er. 1.1 Apr. 2010
15. TO
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ER COLLECTIO
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COMPOSITION/
OPERA
TION
15.3 Operation
15.3.1
Toner collecting path
• The cleaning blade is used to scrape residual toner off the surface of the drum.
• The toner removed by the cleaning blade is scooped up by the toner scooping screw and
conveyed by way of toner conveyance screw/1 and toner conveyance screw/2 onto the
developer mixing chamber.
• The following control is provided to prevent paper dust from being wedged between the
cleaning blade and the drum. When the cumulative period of time through which the
drum has been driven reaches a predetermined value, the drum is turned backward (by
turning the Main Motor backward).
A0XXT2C524AA
Cleaning blade
Drum
Spent toner conveying screw 2
Spent toner conveying screw 1
Developer mixing chamber
Toner scooping screw
