Sharp AR-C330 (serv.man5) Service Manual ▷ View online
AR-C330 SETTING AND ADJUSTMENTS 7 - 30
The print density should vary gradually from the lower density to
the higher density without reversion of changing direction.
the higher density without reversion of changing direction.
The density level of each color should be almost the same.
It is acceptable for patch B not to be copied.
Patch A is not copied.
When, however, the color balance is adjusted according to the
user's request, there is no need to adjust to the standard color bal-
ance as stated above.
user's request, there is no need to adjust to the standard color bal-
ance as stated above.
5) Select the color to be adjusted and select the adjustment point
with the scroll key.
6) Enter the adjustment value with the 10-key and press the OK
key.
The adjustment value can be selected in the range of 245 –
755 (1 – 999). When SIM 46-24 is used to perform the auto-
matic color balance and the density adjustment, all the set val-
ues of this simulation are set to 500.
755 (1 – 999). When SIM 46-24 is used to perform the auto-
matic color balance and the density adjustment, all the set val-
ues of this simulation are set to 500.
To increase the density, increase the adjustment value. To
decrease the density, decease the adjustment value.
decrease the density, decease the adjustment value.
Repeat procedures 3) – 6) until the condition of procedure 4) is
satisfied.
satisfied.
When the overall density is low or patch A is copied with a high
density, use the arrow keys to change all the adjustment values of
A – O simultaneously and uniformly.
density, use the arrow keys to change all the adjustment values of
A – O simultaneously and uniformly.
Then perform the patch density adjustment. This allows to make
an efficient adjustment.
an efficient adjustment.
By using the black patch as the reference, adjust so that the color
balance of the black patch of each process (CMY) in A – O
becomes virtually same as the black patch.
balance of the black patch of each process (CMY) in A – O
becomes virtually same as the black patch.
In this simulation mode, press CLEAR key to return to the normal
copy mode and make actual copies of the service chart and user
documents. Check the adjustment result.
copy mode and make actual copies of the service chart and user
documents. Check the adjustment result.
7) Execute SIM 44-21.
The initial setup of half tone image correction is performed.
This procedure is to store the copy color balance adjustment data
as the reference data for half-tone correction.
as the reference data for half-tone correction.
This procedure should be always executed immediately after com-
pletion of ADJ M17/ADJ 3 (Color balance adjustment (Manual))
with SIM 46-21.
pletion of ADJ M17/ADJ 3 (Color balance adjustment (Manual))
with SIM 46-21.
When ADJ M17/ADJ2 (Color balance adjustment (Auto)) is per-
formed with SIM 46-24, this procedure is automatically performed.
formed with SIM 46-24, this procedure is automatically performed.
When EXECUTE key is pressed, it is highlighted and the opera-
tion is started.
tion is started.
It takes several minutes to complete the operation. When the
operation is completed, the screen returns to the original state.
After completion of the operation, cancel the simulation.
operation is completed, the screen returns to the original state.
After completion of the operation, cancel the simulation.
8) Execute the half tone image correction. (Forcible execution)
(SIM 44-26)
When EXECUTE key is pressed, it is highlighted and the opera-
tion is started. It takes several minutes to complete the operation.
When the operation is completed, the screen returns to the origi-
nal state.
tion is started. It takes several minutes to complete the operation.
When the operation is completed, the screen returns to the origi-
nal state.
After completion of the operation, cancel the simulation.
9) Use the test chart UKOG-0283FCZZ and check the copy color
balance and the density in the Text/Printed photo mode.
(Refer to the section of the copy color balance and the density
check.)
(Refer to the section of the copy color balance and the density
check.)
If the copy color balance and the density are not in the specified
level, repeat procedures 7) through 9) until they are in the speci-
fied level.
level, repeat procedures 7) through 9) until they are in the speci-
fied level.
However, repetition is limited to three times. If repetition of the
above procedures does not set the copy color balance and the
density to the specified level, there may be some other reason.
Investigate the reason and repair or fix the problem, then perform
all the procedures of print quality adjustment from the beginning.
above procedures does not set the copy color balance and the
density to the specified level, there may be some other reason.
Investigate the reason and repair or fix the problem, then perform
all the procedures of print quality adjustment from the beginning.
10) When the color balance is customized, register the color bal-
ance as the service target by SIM 63-7.
When the color balance is not customized, there is no need to
perform this work.
perform this work.
If the customized color balance is registered as the service tar-
get, when the color balance is adjusted in the next time, the
automatic color balance adjustment mode can be used. In the
next color balance adjustment, select the service target color
balance in the automatic color balance adjustment mode, and
the color balance will be adjusted to the same color balance
as registered this time.
get, when the color balance is adjusted in the next time, the
automatic color balance adjustment mode can be used. In the
next color balance adjustment, select the service target color
balance in the automatic color balance adjustment mode, and
the color balance will be adjusted to the same color balance
as registered this time.
AR-C330 SETTING AND ADJUSTMENTS 7 - 31
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.
consumable parts or take necessary measures.
Perform the following procedures.
Check that the following simulation values are in the specified range. If not, troubleshoot the cause and repair.
SIM No
ITEM
SPEC
NOTE
GR
BS
DV
BS
Standard value
Fixed
Standard value
Fixed
44-9
(NORMAL
MODE)
(2/6)
MODE)
(2/6)
BLACK
333 to 900
545
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.)
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.)
CYAN
305 to 900
555
125 to 700
MAGENTA
YELLOW
JOB No
WORK ITEM
SIM No
Trouble caused by improper
adjustment
NOTE
ADJ M4 High
voltage
adjustment
adjustment
ADJ 1
Main
charger
grid voltage
adjustment
charger
grid voltage
adjustment
8-2
Improper image density
(especially in the high density
section), improper copy, image
density section copy abnormality,
chip on the edge of half-tone
images
(especially in the high density
section), improper copy, image
density section copy abnormality,
chip on the edge of half-tone
images
If the digital
multi-meter
and the high
voltage
probe
specified on
the Service
Manual are
not available,
set the
adjustment
value to the
default.
multi-meter
and the high
voltage
probe
specified on
the Service
Manual are
not available,
set the
adjustment
value to the
default.
Check and adjust when the high
voltage PWB (Main charger / DV
bias) is replaced. / Adjust when
the output is not in the specified
level. / Check and adjust when the
copy/print quality (density, color
balance) adjustment does not
provide a satisfactory result.
voltage PWB (Main charger / DV
bias) is replaced. / Adjust when
the output is not in the specified
level. / Check and adjust when the
copy/print quality (density, color
balance) adjustment does not
provide a satisfactory result.
ADJ 2
DV bias
voltage
adjustment
voltage
adjustment
8-1
Improper image density, improper
copy, image density section copy
abnormality, chip on the edge of
half-tone images
copy, image density section copy
abnormality, chip on the edge of
half-tone images
Check and adjust when the high
voltage PWB (Main charger / DV
bias) is replaced. / Adjust when
the output is not in the specified
level. / Check and adjust when the
copy/print quality (density, color
balance) adjustment does not
provide a satisfactory result.
voltage PWB (Main charger / DV
bias) is replaced. / Adjust when
the output is not in the specified
level. / Check and adjust when the
copy/print quality (density, color
balance) adjustment does not
provide a satisfactory result.
ADJ 3
Transfer
voltage
adjustment
voltage
adjustment
44-30
Improper image density, half-tone
image section improper copy, high
density image section density
unevenness and improper copy,
low density inside image outline
image section improper copy, high
density image section density
unevenness and improper copy,
low density inside image outline
Check and adjust when the high
voltage PWB (Transfer) is
replaced. / Adjust when the output
is not in the specified level. /
Check and adjust when the copy/
print quality (density, color
balance) adjustment does not
provide a satisfactory result.
voltage PWB (Transfer) is
replaced. / Adjust when the output
is not in the specified level. /
Check and adjust when the copy/
print quality (density, color
balance) adjustment does not
provide a satisfactory result.
ADJ M6 Image
density
sensor
adjustment
sensor
adjustment
ADJ 1
Image
density
sensor
calibration
density
sensor
calibration
44-13
Because of improper operation of
the process correction (high
density section image density
correction), parameters of the
voltage, the current, and the laser
power of the process section
become improper to cause
improper image density, improper
copy, abnormal copy, chip on the
edge of half-tone image, tone gap,
improper color balance, etc. / Error
F2-44 – 45, 80 – 90
the process correction (high
density section image density
correction), parameters of the
voltage, the current, and the laser
power of the process section
become improper to cause
improper image density, improper
copy, abnormal copy, chip on the
edge of half-tone image, tone gap,
improper color balance, etc. / Error
F2-44 – 45, 80 – 90
Adjust when the copy/print quality
(density, color balance)
adjustment does not provide a
satisfactory result or when an
error F2-44 – 45, 80 – 90 occurs.
(density, color balance)
adjustment does not provide a
satisfactory result or when an
error F2-44 – 45, 80 – 90 occurs.
ADJ 2
Image
density
sensor
position
adjustment
density
sensor
position
adjustment
44-23
SIM No
ITEM
Display value at 25°C,
70% (Reference value)
Phenomenon when the sensor operation is abnormal
NOTE
44-14
TEMPERATURE 100 to 120
The process section
correction for change in
temperature/humidity is
not performed. (Toner
density, transfer voltage,
resist roller RPM
corrections)
correction for change in
temperature/humidity is
not performed. (Toner
density, transfer voltage,
resist roller RPM
corrections)
(Improper color balance,
abnormal copy, improper
copy, toner dispersion,
improper image density,
image deflection, image dirt,
decreased density inside
image outline)
abnormal copy, improper
copy, toner dispersion,
improper image density,
image deflection, image dirt,
decreased density inside
image outline)
Check the relationship
between the actual
environment and the
sensor output level, and
check that the sensor is
operating properly.
between the actual
environment and the
sensor output level, and
check that the sensor is
operating properly.
HUMIDITY
35 to 45
AR-C330 SETTING AND ADJUSTMENTS 7 - 32
Check that the following simulation values are normal. If not, troubleshoot the cause and repair.
Check that the following simulation values are in the specified range. If not, troubleshoot the cause and readjust.
Check the following simulation values are in the specified range. If not, set the values to the specified range.
SIM No
ITEM
LAST(BUP)
LEVEL
Phenomenon caused by improper
set value
NOTE
44-16
BLACK
Improper image density, improper
copy, improper color balance, toner
dispersion, developer dispersion
copy, improper color balance, toner
dispersion, developer dispersion
If the difference between LAST
(BUP) and LEVEL is extremely
great, the toner density control may
not function properly.
(BUP) and LEVEL is extremely
great, the toner density control may
not function properly.
(TONER
DENSITY)
(1/3)
DENSITY)
(1/3)
CYAN
MAGENTA
YELLOW
SIM No
ITEM
LV-ORG
DV
HUD
LV
Phenomenon caused by improper set
value
NOTE
44-16
BLACK
Toner density
correction is
nor performed
properly.
correction is
nor performed
properly.
Improper image
density, improper copy,
improper color balance,
toner dispersion,
developer dispersion
density, improper copy,
improper color balance,
toner dispersion,
developer dispersion
The toner density correction
levels for the use frequency
of developer and the
humidity are displayed.
Check that those levels are
proper.
levels for the use frequency
of developer and the
humidity are displayed.
Check that those levels are
proper.
(ATC
SENSITIVIT
Y REVISE)
(3/3)
SENSITIVIT
Y REVISE)
(3/3)
CYAN
MAGENTA
YELLOW
SIM No
ITEM
SPEC
Phenomenon caused when the adjustment value is not in the
normal value range.
NOTE
Default
Standard value
44-2
DMGNDY
–
185 ± 10 / 0 to 255
Improper adjustment of OPC drum phase Image color shift,
banding, F2-50 – 57
Check the
sections related
to the OPC
drum and the
OPC drum mark
sensor.
sections related
to the OPC
drum and the
OPC drum mark
sensor.
DMGNDM
–
DMGNDC
–
DMGNDK
–
MKY/GND
–
30 to 70
MKM/GND
–
MKC/GND
–
MKK/GND
–
PCLEDC
–
0 to 255
Because of improper image sensor
sensitivity adjustment, the process
correction (high density section image
density correction) is not performed
properly, resulting in improper parameters
of the voltage, the current, and the laser
power of the process section. / Because
of improper half-tone process correction,
the laser ON duty becomes improper.
sensitivity adjustment, the process
correction (high density section image
density correction) is not performed
properly, resulting in improper parameters
of the voltage, the current, and the laser
power of the process section. / Because
of improper half-tone process correction,
the laser ON duty becomes improper.
Improper image
density, improper
copy, abnormal copy,
chip on the edge of
half-tone image, tone
gap, improper color
balance / Errors F2-
44 – 45, 80 – 90
density, improper
copy, abnormal copy,
chip on the edge of
half-tone image, tone
gap, improper color
balance / Errors F2-
44 – 45, 80 – 90
Check the
sections related
to the transfer
belt and the
image density
sensor.
sections related
to the transfer
belt and the
image density
sensor.
PCLEDK
–
P_BK_B
–
SIM44-4
(PCS_B_TARGET_ID)
± 2 / 0 to 255
P_CY
SIM44-13 (P_CYI)
± 2 / 0 to 255
SIM
No
ITEM
SPEC
Phenomenon cause when the set value is changed
Phenomenon caused when the set value is
not in the normal value range
NOTE
Default
Standard
value
44-4 PCS_C_TARGET_ID
102
–
Change in the color image sensor sensitivity (When
the set value is increased, the image density is
decreased. When the set value is decreased, the
image density is increased.)
the set value is increased, the image density is
decreased. When the set value is decreased, the
image density is increased.)
Because of improper image sensor
sensitivity adjustment, the process
correction (high density section image
density correction) is not performed
properly, resulting in improper parameters
of the voltage, the current, and the laser
power of the process section. / Because of
improper half-tone process correction, the
laser ON duty becomes improper. Improper
image density, improper copy, abnormal
copy, chip on the edge of half-tone image,
tone gap, improper color balance / Errors
F2-44 – 45, 80 – 90
sensitivity adjustment, the process
correction (high density section image
density correction) is not performed
properly, resulting in improper parameters
of the voltage, the current, and the laser
power of the process section. / Because of
improper half-tone process correction, the
laser ON duty becomes improper. Improper
image density, improper copy, abnormal
copy, chip on the edge of half-tone image,
tone gap, improper color balance / Errors
F2-44 – 45, 80 – 90
PCS_B_TARGET_ID
133
–
Change in the black image sensor sensitivity (When
the set value is increased, the image density is
increased. When the set value is decreased, the
image density is decreased.)
the set value is increased, the image density is
increased. When the set value is decreased, the
image density is decreased.)
AR-C330 SETTING AND ADJUSTMENTS 7 - 33
Check that the following simulation values are in the specified range. If not, set it to the proper value.
If the copy quality adjustment cannot provide a normal copy quality, check that the following simulation values are in the specified range. If
not, set the values as specified.
not, set the values as specified.
If the copy quality adjustment cannot provide a normal copy quality, check the following parts for any abnormality.
44-4 Y_PAT_TARGET_ID
90
–
Change in the process correction (Yellow image high
density section image density correction) level (When
the set value is increased, the image density in the
high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
density section image density correction) level (When
the set value is increased, the image density in the
high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
Color image high density section abnormal
copy, improper image density, improper
copy, improper color balance, toner
dispersion, developer dispersion
copy, improper image density, improper
copy, improper color balance, toner
dispersion, developer dispersion
M_PAT_TARGET_ID
100
–
Change in the process correction (Magenta image
high density section image density correction) level
(When the set value is increased, the image density
in the high density section is increased and abnormal
copy is decreased. When the set value is decreased,
the image density in the high density section is
decreased and abnormal copy is increased.)
high density section image density correction) level
(When the set value is increased, the image density
in the high density section is increased and abnormal
copy is decreased. When the set value is decreased,
the image density in the high density section is
decreased and abnormal copy is increased.)
C_PAT_TARGET_ID
83
–
Change in the process correction (Cyan image high
density section image density correction) level (When
the set value is increased, the image density in the
high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
density section image density correction) level (When
the set value is increased, the image density in the
high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
K_PAT_TARGET_ID
22
–
Change in the process correction (Black image high
density section image density correction) level (When
the set value is increased, the image density in the
high density section is decreased and abnormal copy
is increased. When the set value is decreased, the
image density in the high density section is increased
and abnormal copy is decreased.)
density section image density correction) level (When
the set value is increased, the image density in the
high density section is decreased and abnormal copy
is increased. When the set value is decreased, the
image density in the high density section is increased
and abnormal copy is decreased.)
Black image high density section abnormal
copy, improper image density, improper
copy, improper color balance, toner
dispersion, developer dispersion
copy, improper image density, improper
copy, improper color balance, toner
dispersion, developer dispersion
SIM No
ITEM
SPEC
Change in copy quality
due to change in setting
Phenomenon caused
by improper setting
NOTE
Standard value
43-1
HL1 PLAIN PAPER
Default value
(Depending on the
destination. Refer to
Service Manual.)
–5 / +10 Fusing capability and
image gloss are changed.
Improper fusing,
image deflection,
image flow, image dirt
image deflection,
image flow, image dirt
Check that the
setting is made
according to the
destination. (Refer to
Service Manual.)
Check that the set
values are in the
specified range.
setting is made
according to the
destination. (Refer to
Service Manual.)
Check that the set
values are in the
specified range.
HL2 PLAIN PAPER
–5 / +10
HL1 READY
–0 / +0
HL2 READY
–0 / +0
HL1 E_STAR
–0 / +0
HL1 PRE-BK
–0 / +0
HL1 HEAVYPAPER1
–5 / +10
HL2 HEAVYPAPER1
–5 / +10
HL1 HEAVYPAPER2
–5 / +0
HL2 HEAVYPAPER2
–5 / +0
HL1 TRANSPARENCY
–5 / +10
HL2 TRANSPARENCY
–5 / +10
SIM No
ITEM
SPEC
Phenomenon caused when
the set value is changed
Phenomenon caused when
the set value is outside the
specified range
NOTE
BLUE RANK
RED RANK
NO-DISPLAY
RANK
43-7
A
12
12
12
When the set value is
decreased, the oil supply is
decreased. When the set
value is increased, the oil
supply is increased.
decreased, the oil supply is
decreased. When the set
value is increased, the oil
supply is increased.
Shortened life due to damage on
the heat roller surface, degraded
image gloss, abnormal image,
image dirt, improper fusing,
paper jam, oil leakage, oil dirt
the heat roller surface, degraded
image gloss, abnormal image,
image dirt, improper fusing,
paper jam, oil leakage, oil dirt
B
80
180
130
When the set value is
increased, the oil supply is
decreased. When the set
value is decreased, the oil
supply is increased.
increased, the oil supply is
decreased. When the set
value is decreased, the oil
supply is increased.
PART NAME
Phenomenon caused by abnormal parts
NOTE
Fusing oil application roller
Shortened life due to damage on the heat roller surface, degraded image
gloss, abnormal image, image dirt, improper fusing, paper jam, oil leakage, oil
dirt
gloss, abnormal image, image dirt, improper fusing, paper jam, oil leakage, oil
dirt
In case of an abnormality,
replace the part.
replace the part.
Fusing roller cleaning roller
Fusing application felt
Fusing application felt
Fusing application blade
Fusing roller
Fusing gear
Fusing gear
Greater banding, improper image (color shift, flow, deflection), toner dispersion
SIM
No
ITEM
SPEC
Phenomenon cause when the set value is changed
Phenomenon caused when the set value is
not in the normal value range
NOTE
Default
Standard
value
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