Sharp AR-C150 Service Manual page 87

Troubleshooting on copy color balance and density
If the copy quality adjustment cannot provide a normal copy quality, check the following items.
Check that the following simulation values are in the specified range. If any value is improper, check the machine conditions and replace consumable
parts or take necessary measures.
(AR-C150)
SIM No ITEM
44-9 BLACK 333 to 875 (PCU Ver6.01
Sub PCU Ver5.04 or
before) / 333 to 900 (PCU
Ver6.02a Sub PCU
Ver5.05 or later)
(NORMAL CYAN 305 to 850 (PCU Ver6.01
MODE) Sub PCU Ver5.04 or
MAGENTA
(2/6) before) / 305 to 900 (PCU
YELLOW
Ver6.02a Sub PCU
Ver5.05 or later)
(AR-C250)
SIM No ITEM
44-9 BLACK 333 to 875 (PCU Ver4.0D
Sub PCU Ver3.0D or
before) / 333 to 900 (PCU
Ver4.01 Sub PCU
Ver3.01 or later)
(NORMAL CYAN 305 to 850 (PCU Ver4.0D
MODE) Sub PCU Ver3.0D or
MAGENTA
(2/6) before) / 305 to 900 (PCU
YELLOW
Ver4.01 Sub PCU
Ver3.01 or later)
(AR-C160/C270)
SIM No ITEM
44-9 BLACK
(NORMAL CYAN
MODE)
MAGENTA
(2/6)
YELLOW
SPEC
GR BS
Standard value Fixed
525
(AR-C100/C150)
545 (AR-C250/C160/
C270)
525 (AR-C100/C150)
545 (AR-C250)
555 (AR-C160/C270)
SPEC
GR BS
Standard value Fixed
525 (AR-C100/C150)
545 (AR-C250/C160/
C270)
525 (AR-C100/C150)
545 (AR-C250)
555 (AR-C160/C270)
SPEC
GR BS
Standard value Fixed
525 (AR-C100/C150)
333 to 900 545 (AR-C250/C160/
C270)
525 (AR-C100/C150)
305 to 900 545 (AR-C250)
555 (AR-C160/C270)
DV BS
Standard value Fixed
150 – 700
325
125 to 700
DV BS
Standard value Fixed
150 – 700
325
125 to 700
DV BS
Standard value Fixed
150 – 700
325
125 to 700
7 – 33
NOTE
A greater difference between
GR-BS(XXX) and DV-BS(XXX) means
a greater correction quantity of the DV
bias voltage and of the main charger
grid voltage. It may be judged that the
image process section conditions are
degraded. (The deterioration degree of
developer, the OPC drum, the transfer
belt, the transfer roller, and the main
charger, etc. may be presumed.)
NOTE
A greater difference between
GR-BS(XXX) and DV-BS(XXX) means
a greater correction quantity of the DV
bias voltage and of the main charger
grid voltage. It may be judged that the
image process section conditions are
degraded. (The deterioration degree of
developer, the OPC drum, the transfer
belt, the transfer roller, and the main
charger, etc. may be presumed.)
NOTE
A greater difference between
GR-BS(XXX) and DV-BS(XXX) means
a greater correction quantity of the DV
bias voltage and of the main charger
grid voltage. It may be judged that the
image process section conditions are
degraded. (The deterioration degree of
developer, the OPC drum, the transfer
belt, the transfer roller, and the main
charger, etc. may be presumed.)