Cross Mixing - Ricoh FT8680 Service Manual

DEVELOPMENT 31 July 1995

6.3 CROSS MIXING

[E] [A]
[D]
[C]
[B]
A171D600.img
This copier uses a standard cross-mixing mechanism to keep the toner and
developer evenly mixed. It also helps agitate the developer to prevent
developer clumps from forming, and helps create the triboelectric charge.
The developer on the turning upper development roller is split into two parts
by the doctor blade. The part trimmed by the doctor blade goes to the
backspill plate [A].
As the developer slides down the backspill plate to the agitator [B], the mixing
vanes [C] move it slightly toward the rear of the unit.
Part of the developer falls into the auger inlet [D] and is transported to the
front of the unit by the auger [E].
The agitator moves the developer slightly to the front as it turns, so the
developer stays level in the development unit.
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