Sharp AR-C150 Service Manual page 91

Check that the following simulation values are in the specified range. If not, set the values as specified.
AR-C100/C150
SIM No ITEM
Default
48-6
RRM 55
BELTM 51
FSM(L) 45
FSM(S) 40
DM(BK) 42
DM(CL) 37
Check that the following simulation values are in the specified range. If not, set the values as specified.
SIM No ITEM
46-6 B A(OFFSET ODD)
B(OFFSET EVEN)
C(GAIN ODD)
D(GAIN EVEN)
G A(OFFSET ODD)
B(OFFSET EVEN)
C(GAIN ODD)
D(GAIN EVEN)
R A(OFFSET ODD)
B(OFFSET EVEN)
C(GAIN ODD)
D(GAIN EVEN)
Check that the following items are properly set. If any adjustment is improper, adjust it properly.
JOB No WORK ITEM
ADJ M1 DV Doctor gap adjustment
ADJ M2 DV roller main pole position adjustment
(Auto color balance adjustment service target gamma setup)
a. Outline
Auto color balance adjustment is performed with a certain color balance (gamma) as a target. There are following two kinds of targets:
Only the service target among them allows optional setup of a color balance (gamma) target.
This setup must be performed in the following cases.
•
When the user requests to customize the color balance.
•
When the service target gamma is found to be incorrect.
•
When the copy color balance and the density adjustment is manually performed. (SIM 46-21)
•
When a U2 trouble occurs.
•
When the ICU main PWB is replaced.
•
When the EEPROM on the ICU main PWB is replaced.
SPEC
AR-C250
Standard Standard
Default
value value
± 0 ± 0
55
± 0 ± 0
51
50 (Japan)
Default Default
40 (Except
+ 20 + 20
Japan)
45 (Japan)
Default Default
40 (Except
+ 20 + 20
Japan)
± 0 ± 0
42
± 0 ± 0
37
SPEC
AR-C150 AR-C250/C160/C270
150
150
120
120
150
150
140
140
150
150
180
180
Improper image density, improper copy, improper color balance, toner dispersion, developer
dispersion
Phenomenon
caused when
AR-C160/C270
the set value
Standard
Default
is changed
value
Change in the
resist motor
± 0
55 RPM
Change in the
transfer belt
± 0
51 rotation speed
55 (Japan) Change in the
Default
50 (Except fusing roller
+ 20
Japan) rotation speed
60 (Japan)
Default
55 (Except
+ 20
Japan)
Change in the
black OPC
± 0
42 drum rotation
speed
Change in the
color OPC
± 0
37 drum rotation
speed
Phenomenon caused when the value is
not as specified
150 Improper image
scan level (density,
150
color balance)
150
150
150
150
130
130
150
150
160
160
NOTE
7 – 37
Phenomenon
caused when the
set value is outside
the specified range
Improper image at
the rear end in the
paper transport
direction (color shift,
flow, dirt, deflection)
Greater banding,
improper image
(color shift, flow,
deflection, flow),
toner dispersion
Improper image at
the rear end in the
paper transport
direction (color shift,
flow, dirt, deflection)
Greater banding,
improper image
(color shift, flow,
deflection, flow),
toner dispersion
Greater banding,
improper image
(color shift, flow,
deflection, flow),
toner dispersion
NOTE
Improper image Be sure to set as
density, improper specified.
color balance
NOTE