Random Pitched Banding - Ricoh B051 Service Manual

Tech Service Bulletin No. B051/B052 – 014 REISSUE

RANDOM PITCHED BANDING:

SYMPTOM:
As shown in the illustration, random-pitched banding appearing at random intervals .
CAUSE:
Toner drops out from the development unit onto the
OPC grounding brush, preventing the OPC belt from
being properly grounded.
SOLUTION:
Clean the grounding brush by inserting a sheet of paper
between the brush and OPC belt. Then, clean any
dropped toner in and around the PCU with a vacuum
or cotton cloth, being very careful not to damage
the OPC surface.
CÓPIA NÃO CONTROLADA
Random-pitched banding,
uneven ID across the image
Paper Feed
Direction
Insert a sheet of paper to
clean the grounding brush.
CÓPIA NÃO CONTROLADA
Grounding Brush
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