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10 February 2005
PHOTOCONDUCTOR UNIT (PCU)
Waste Toner Collection
The cleaning brush [B] and the cleaning blade [J] removes the toner remaining on
the OPC belt [K] surface. (☛ ! Photocopying Processes – Cleaning – Counter
Blade + Brush)
Toner collection auger 1 [G] moves this toner to the front side, where it is collected
in the waste toner bottle [I].
Toner collection auger 2 [H] levels the toner in the bottle.
The waste toner feeler [E] at the rear of the bottle is gradually lifted as the toner
level in the bottle rises. When the feeler pushes the feeler link [C], the waste toner
full sensor [D] is activated and the machine detects that the bottle is full.
When the bottle becomes full, a message appears on the operation panel. The
machine can make 100 more prints, then further printing is disabled.
The bottle has a cap on the waste toner outlet. Empty the bottle when you visit the
customer.
Drive
[D]
[B] [C]
[E]
[A]
[F]
[A]: Development motor for Y,
M
[B]: OPC belt cleaning clutch
[C]: Gear
[D]: Gear
[E]: Cleaning brush
[F]: Toner collection auger 1
[H]
[G]: Opening for waste toner
[H]: Toner collection auger 2
[G]
B156D312.WMF
Development motor [A] " Gear " Timing belt " OPC belt cleaning clutch [B] "
Gears [C, D] " OPC belt cleaning unit (including the brush and toner collection
augers)
The clutch cuts the drive to the cleaning unit when the development motor reverses
(this is done each development to prevent toner blockages in the development unit).
6-37
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