Read Sharp AR-C270 (serv.man11) Service Manual online
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.
parts or take necessary measures.
(AR-C150)
SIM No
ITEM
SPEC
NOTE
GR
BS
DV
BS
Standard value
Fixed
Standard value
Fixed
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)
525
(AR-C100/C150)
545 (AR-C250/C160/
C270)
150 – 700
325
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.)
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.)
(NORMAL
MODE)
(2/6)
MODE)
(2/6)
CYAN
305 to 850 (PCU Ver6.01
Sub PCU Ver5.04 or
before) / 305 to 900 (PCU
Ver6.02a Sub PCU
Ver5.05 or later)
525 (AR-C100/C150)
545 (AR-C250)
555 (AR-C160/C270)
125 to 700
MAGENTA
YELLOW
(AR-C250)
SIM No
ITEM
SPEC
NOTE
GR
BS
DV
BS
Standard value
Fixed
Standard value
Fixed
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)
525 (AR-C100/C150)
545 (AR-C250/C160/
545 (AR-C250/C160/
C270)
150 – 700
325
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.)
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.)
(NORMAL
MODE)
(2/6)
MODE)
(2/6)
CYAN
305 to 850 (PCU Ver4.0D
Sub PCU Ver3.0D or
before) / 305 to 900 (PCU
Ver4.01 Sub PCU
Ver3.01 or later)
525 (AR-C100/C150)
545 (AR-C250)
555 (AR-C160/C270)
125 to 700
MAGENTA
YELLOW
(AR-C160/C270)
SIM No
ITEM
SPEC
NOTE
GR
BS
DV
BS
Standard value
Fixed
Standard value
Fixed
44-9
BLACK
333 to 900
525 (AR-C100/C150)
545 (AR-C250/C160/
545 (AR-C250/C160/
C270)
150 – 700
325
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.)
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.)
(NORMAL
MODE)
(2/6)
MODE)
(2/6)
CYAN
305 to 900
525 (AR-C100/C150)
545 (AR-C250)
555 (AR-C160/C270)
125 to 700
MAGENTA
YELLOW
7 – 33
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