Uneven Image Density At The Side Of The Image - Ricoh B051 Service Manual

Tech Service Bulletin No. B051/B052 – 014

UNEVEN IMAGE DENSITY AT THE SIDE OF THE IMAGE

Replace the charge unit
Y
Is there any change in
the image (position,
density, etc)?
N
Check and correct the PCU ground
terminal and PCU bias terminal.
N
Does the image
problem still occur?
Y
Replace the PCU
END
CÓPIA NÃO CONTROLADA
Print out the test pattern (SP5-955, No.8) for each
color.
Does the image problem
occur on all colors?
Y
Clean the dust shield glass in the laser
and charge units (wire and grid).
Y
Does the image
problem still occur?
Clean the development roller bias
terminal
N
Does the image
END
problem still occur?
CÓPIA NÃO CONTROLADA
Remove the toner cartridge showing the problem. Shake
the cartridge well (10 times), hold the cartridge so that the
toner supply opening faces up, then tap the cartridge 7-8
N
times.
Does the image
problem still occur?
Perform Forced Toner Supply
N
END
Does the image problem
still occur?
Check the condition of the development
roller showing the problem.
Y
Is there an even layer of
toner on the surface?
Y
Replace the development unit
N
END
Y
N
END
Y
Replace the
N
development
unit
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