Image Transfer Belt Cleaning Unit; Image Transfer Belt Cleaning; Waste Toner Collection; Set Switch And Full Sensor - Ricoh U-C1 B051 Service Manual

26 July 2002 PHOTOCONDUCTOR UNIT (PCU)

6.7.6 IMAGE TRANSFER BELT CLEANING UNIT

[N]
[A]
[M]
[B]
[A]: Cleaning blade
[B]: Toner collection auger 1
[L] [C]
[C]: Image transfer belt
[D]: Toner conduit
[E]: Waste toner sensor feeler
[F]: Waste toner bottle switch
[E]
[D]
[G]: Actuator
[H]: Waste toner full sensor
[K]
[I]: Waste toner bottle
[J]: Transfer roller
[K]: Toner collection auger 2
[L]: Cleaning brush
[M]: Lubricant bar
[F]
[N]: Cleaning roller
[J]
[I] [H] [G]
B051D318.WMF

Image Transfer Belt Cleaning

Cleaning roller [N] is positively charged, and transfers this charge to the cleaning
brush [L].
The cleaning brush attracts residual toner from the image transfer belt [C]. This
toner is attracted to the cleaning roller, where it is removed by the cleaning blade
[A].

Waste Toner Collection

The toner removed by the cleaning blade is transported by the toner collection
auger 1 [B] to the rear, where it falls into the toner bottle [I] through the toner
conduit [D].
Toner collection auger 2 [K] levels the toner in the bottle.
There is a shutter on the top of the waste toner bottle. While out of the unit, the
shutter is kept closed by a spring attached to it. When it is put back in the unit, a
hook on top of the shutter is caught by the image transfer belt unit, and the shutter
opens.

Set Switch and Full Sensor

When the bottle is full, a message appears on the operation panel. After this, 100
more prints can be output. Then the machine stops and printing is disabled.
6-39