Drum Cleaning And Toner Recycling; Drum Cleaning - Ricoh A230 Service Manual

DRUM CLEANING AND TONER RECYCLING

2.7 DRUM CLEANING AND TONER RECYCLING

2.7.1 DRUM CLEANING

[D]
[E]
[A]
[B]
[C]
[A]
A231D507.WMF
The cleaning blade [A] removes any toner remaining on the drum after the image is
transferred to the paper. This model uses a counter blade system.
The toner remaining on the drum is scraped off by the cleaning blade, and is
transferred to the toner collection coil [B] by the toner collection plate [C].
The collar [D] on the cleaning blade bracket contacts the outer rim of cam gear [E],
and this gear moves the cleaning blade from side to side. (This gear is the same
cam gear that moves the charge roller cleaning pad from side to side.) This
movement helps to disperse spots of accumulated toner to prevent early blade
edge wear at any particular location.
To remove the toner and other particles that are accumulated at the edge of the
cleaning blade, the drum turns in the reverse direction for about 5 mm at the end of
every copy job.
A230/A231/A232 SM
2-47