Ricoh D014 Service Manual page 455

Black level detection error
During AGC the value for black level
SC141 D
was not within ±3 of the prescribed
value.
White level detection error
During AGC the value for
SC142 D
white level was not within -7 of
the prescribed value.
SBU Auto Adjust Error
At power on the automatic
SC143 C
white level adjustment
failed.
SM
CÓPIA NÃO CONTROLADA
Clean the white plate
Clean the optics and lenses
Check the connectors between the
SBU and IPU.
Replace the SBU
Replace the IPU
Replace the VBCU
Replace the exposure lamp
4-5
CÓPIA NÃO CONTROLADA
Service Call Tables
SBU defective
Harness defective
Check harnesses between
SBU and IPU
IPU defective
VBCU defective
Exposure lamp defective
Harness disconnected, damaged
Dirty exposure glass, optics
Scanner motor, drive assembly
defective
SBU board defective
D014/D015/D078/D079