Drum Cleaning And Toner Recycling; Drum Cleaning; Toner Recycling - Ricoh B291 Service Manual

6.10 DRUM CLEANING AND TONER RECYCLING

6.10.1 DRUM CLEANING

This machine employs a counter blade
system. After the image is transferred to
paper, a cleaning blade [A] removes any
toner remaining on the drum. The toner
collection coil [B] carries scraped off toner
to the toner collection plate [C].
The collar [D] on the cleaning blade
bracket contacts the outer rim of cam gear
[E], which moves the cleaning blade side to
side. This side-to-side movement
disperses accumulated toner to prevent
early blade edge wear at one location.
The drum reverses about 5 mm after every
print job to remove particles on the edge of
the cleaning blade.

6.10.2 TONER RECYCLING

Toner collected by the toner collection
coil [A] is transported to the opening [B].
This toner falls into the development unit
with new toner coming from the toner
bottle. The paddle roller [C] mixes the
collected toner with the new toner.
NOTE: A screen filter [D) has been
added to strain out paper dust
and other foreign matter.
SM
CÓPIA NÃO CONTROLADA
DRUM CLEANING AND TONER RECYCLING
[A]
6-69
CÓPIA NÃO CONTROLADA
[E]
[D]
[B]
B195D947.WMF
[D]
B291/B295/B296/B297
[C]
B195D946.WMF
[A]
[B]
[C]