PCU (Photo Conductor Unit)
G133 6-28 SM
Drum Cleaning
The cleaning blade [A] scrapes off the used toner that stays on the drum. The toner
collection auger [B] transports the used toner towards the toner collection duct. Then it
goes to the toner collection duct. The brush roller [C] put lubricant on the drum to make
toner removal easy the next time the drum rotates past the cleaning blade.
If the temperature is above the value of SP3-517, the drum reverses briefly at the end of
the job to prevent the blade from flipping over.
The brush roller rubs against the lubricant bar [D] and lubricates the drum surface.
Lubricant is uniformly applied on the surface of the drum by the lubricant application blade
[E].
The toner collection auger [B] in each PCU is driven by gears [F] at the end of the drum.
This toner then goes to the toner collection bottle (see "p.6-3 "Toner Collection Path and
Drive"" in this chapter).
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