Sharp DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man5) Service Manual ▷ View online
DX-C401 ADJUSTMENTS 4 – 65
15-F
Copy/Printer color balance and density
adjustment (Automatic adjustment)
adjustment (Automatic adjustment)
This adjustment is needed in the following situations:
* When a consumable part (developer, OPC drum, transfer belt) is
* When a consumable part (developer, OPC drum, transfer belt) is
replaced.
* When the CCD unit is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
a. General
SIM46-74 is used to perform the automatic copy color balance and
density adjustment (SIM46-24) and the automatic printer color bal-
ance and density adjustment (SIM67-24) continuously.
Since it is desirable to perform the copy color balance adjustment
(automatic adjustment) before the automatic printer color balance
and density adjustment, it is advisable to perform the adjustment in
this mode.
This mode is also advisable to effectively perform both of the auto-
matic copy color balance and density adjustment (SIM46-24) and
the automatic printer color balance and density adjustment (SIM67-
24). It saves considerable time when compared with performing
each of the auto copy/printer color balance and the density adjust-
ment individually.
b. Note for execution of the copy color balance adjustment
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
a. General
SIM46-74 is used to perform the automatic copy color balance and
density adjustment (SIM46-24) and the automatic printer color bal-
ance and density adjustment (SIM67-24) continuously.
Since it is desirable to perform the copy color balance adjustment
(automatic adjustment) before the automatic printer color balance
and density adjustment, it is advisable to perform the adjustment in
this mode.
This mode is also advisable to effectively perform both of the auto-
matic copy color balance and density adjustment (SIM46-24) and
the automatic printer color balance and density adjustment (SIM67-
24). It saves considerable time when compared with performing
each of the auto copy/printer color balance and the density adjust-
ment individually.
b. Note for execution of the copy color balance adjustment
(Automatic adjustment for each dither)
1)
For the color balance adjustment, use the recommended color
paper. (For the recommended paper, refer to [2].)
If the other kind of paper is used for the color balance adjust-
ment, the proper image quality (color balance, density) may
not be obtained.
paper. (For the recommended paper, refer to [2].)
If the other kind of paper is used for the color balance adjust-
ment, the proper image quality (color balance, density) may
not be obtained.
2)
When setting the adjustment pattern on the document table in
the automatic color balance adjustment procedures, place 5
sheets of white paper on the adjustment pattern in order to
prevent back copying and adverse effects of paper wrinkles as
far as possible.
the automatic color balance adjustment procedures, place 5
sheets of white paper on the adjustment pattern in order to
prevent back copying and adverse effects of paper wrinkles as
far as possible.
DX-C401 ADJUSTMENTS 4 – 66
b. Adjustment procedures
(Auto color balance adjustment by the serviceman)
(Auto color balance adjustment by the serviceman)
PCL printer?
Copy/printer color balance and density adjustment (Automatic adjustment)
(SIM46-74) procedure flowchart
(SIM46-74) procedure flowchart
Start
Execute ADJ15F Copy color balance and density/Printer color balance and density
adjustment (automatic density). (SIM46-74)
adjustment (automatic density). (SIM46-74)
Set the adjustment pattern on the document table. Select the factory target or the
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11) to make a copy in the Text
/Printed Photo mode, and check the copy color balance and density.
/Printed Photo mode, and check the copy color balance and density.
Use SIM46-21 to print the color balance check pattern, and check the patch color
balance and density in the process gray. (If the color balance is slightly shifted to
Magenta, it is properly adjusted.)
balance and density in the process gray. (If the color balance is slightly shifted to
Magenta, it is properly adjusted.)
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11) to make a copy in
the Text/Printed Photo mode, and check the color balance and density.
the Text/Printed Photo mode, and check the color balance and density.
Set the adjustment pattern on the document table. Select the factory target or the
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
service target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is automatically performed to
print the check pattern.) (*1)
NO
YES
YES
NO
(Copy color balance and density adjustment (automatic adjustment)
Enter the SIM46-74 mode, and select A4 (11" x 8.5") paper. (Automatic selection)
Press [OK] key. (The initial setting of the half tone image correction is automatically
performed.) (*3)
performed.) (*3)
Check that the initial setting of the half tone image correction was properly
performed. (*2)
performed. (*2)
Press [EXECUTE] key. (The adjustment pattern is printed.)
Press [EXECUTE] key. (The adjustment pattern is printed.)
Cancel SIM46-74.
Execute the initial setting of the half tone image correction. (*2)
Execute the half tone image correction. (SIM44-26)
Check the printed check pattern for any streaks or unclear copy. (*4)
Check the printed check pattern for any streaks or unclear copy. (*4)
(Printer color balance and density adjustment (Automatic adjustment))
Check the copy color balance and density adjustment result.
Are the color balance and density
at the specified level?
at the specified level?
Are the color balance and density
at the specified level?
at the specified level?
Check the printer color balance and density adjustment result with the self print
check pattern.
check pattern.
Use SIM67-25 to print the self print
check pattern, and check the printer
color balance and density.
check pattern, and check the printer
color balance and density.
Use SIM64-5 to print the self print check
pattern, and check the printer color balance
and density.
pattern, and check the printer color balance
and density.
Are the color balance
and density at the
specified level?
and density at the
specified level?
End
Automatic adjustment color balance target change
Change the factory color balance and density target
which is available in 3 kinds. (SIM63-11)
which is available in 3 kinds. (SIM63-11)
Change the factory color balance and density
(available in 3 kinds). (SIM67-26)
(available in 3 kinds). (SIM67-26)
Execute ADJ14C (Copy color balance and density
adjustment) (Manual adjustment). (SIM46-21/44-21)
(*3)
adjustment) (Manual adjustment). (SIM46-21/44-21)
(*3)
Execute ADJ15A (Printer color balance and
density adjustment)
(Automatic adjustment). (SIM67-24)
density adjustment)
(Automatic adjustment). (SIM67-24)
Though the factory color
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM63-11),
or the service target is
selected.
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM63-11),
or the service target is
selected.
Though the factory color
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM67-26),
or the service target is
selected.
balance and density target
(available in 3 kinds) is
changed, satisfactory color
balance and density are
not obtained (SIM67-26),
or the service target is
selected.
Automatic color balance target change
Execute ADJ15C (Printer color balance
and density adjustment)
(Manual adjustment). (SIM67-25)
and density adjustment)
(Manual adjustment). (SIM67-25)
*1:
When the color balance and
density are customized and
registered as the service
target, select the service
target.
When the color balance and
density are customized and
registered as the service
target, select the service
target.
*2:
If the initial setting of the half
tone image correction is not
properly adjusted, satisfactory
color balance and density
cannot be obtained. In this
case, check the print engine
for any problems.
If the initial setting of the half
tone image correction is not
properly adjusted, satisfactory
color balance and density
cannot be obtained. In this
case, check the print engine
for any problems.
*3:
If satisfactory color balance and
density are not obtained with
ADJ14C (Copy color balance
and density adjustment) (Manual
adjustment) (SIM46-21/44-21),
check the print engine for any
problems.
If satisfactory color balance and
density are not obtained with
ADJ14C (Copy color balance
and density adjustment) (Manual
adjustment) (SIM46-21/44-21),
check the print engine for any
problems.
*4:
If there is any streak or unclear
copy on the printed check
pattern, check the print engine
for any problems.
If there is any streak or unclear
copy on the printed check
pattern, check the print engine
for any problems.
NO
NO
YES
YES
NO
YES
NO
YES
DX-C401 ADJUSTMENTS 4 – 67
1)
Enter the SIM46-74 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
2)
Press [EXECUTE] key.
The high density process control is performed, and the copy
color patch image (adjustment pattern) is printed out. (A4 or
11" x 8.5" paper is automatically selected.)
(4.3 Inch LCD model)
The high density process control is performed, and the copy
color patch image (adjustment pattern) is printed out. (A4 or
11" x 8.5" paper is automatically selected.)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
3)
Set the color patch image (adjustment pattern) paper printed in
procedure 2) on the document table.
Set the printed color patch image (adjustment pattern) on the
document table. Place the color patch image so that the fine
lines are on the left side in the center reference. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
procedure 2) on the document table.
Set the printed color patch image (adjustment pattern) on the
document table. Place the color patch image so that the fine
lines are on the left side in the center reference. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
4)
Select [FACTORY] target on the operation panel, and press
[EXECUTE] key.
When the color balance is customized by the manual color bal-
ance adjustment (SIM 46-21) according to the user's request,
and the color balance is registered with SIM63-7 as the service
target, if the color balance is required to be adjusted, select the
[SERVICE] target.
(4.3 Inch LCD model)
[EXECUTE] key.
When the color balance is customized by the manual color bal-
ance adjustment (SIM 46-21) according to the user's request,
and the color balance is registered with SIM63-7 as the service
target, if the color balance is required to be adjusted, select the
[SERVICE] target.
(4.3 Inch LCD model)
(8.5 Inch LCD model)
The copy color balance adjustment is automatically executed
and prints the color balance check patch image.
If there is any streak or unclear print on the printed check pat-
tern, check the print engine for any problems.
and prints the color balance check patch image.
If there is any streak or unclear print on the printed check pat-
tern, check the print engine for any problems.
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DX-C401 ADJUSTMENTS 4 – 68
Remark:
(Descriptions on the factory service key button in the color bal-
ance automatic adjustment menu)
There are two kinds of the gamma target for the color balance
automatic adjustment: the factory target and the service target.
FACTORY key and SERVICE key are used to select one of the
above two.
Factory target color balance: Standard color balance
(The color balance can be selected from the three kinds of
fixed ones with SIM63-11.)
Service target color balance: The color balance can be cus-
tomized according to the user's request. (Variable)
When shipping from the factory, the service target gamma data
and the factory target gamma data are the same.
Both are set to the standard color balance when shipping from
the factory. For the service target, a customized color balance
gamma can be registered with SIM63-7.
(Descriptions on the factory service key button in the color bal-
ance automatic adjustment menu)
There are two kinds of the gamma target for the color balance
automatic adjustment: the factory target and the service target.
FACTORY key and SERVICE key are used to select one of the
above two.
Factory target color balance: Standard color balance
(The color balance can be selected from the three kinds of
fixed ones with SIM63-11.)
Service target color balance: The color balance can be cus-
tomized according to the user's request. (Variable)
When shipping from the factory, the service target gamma data
and the factory target gamma data are the same.
Both are set to the standard color balance when shipping from
the factory. For the service target, a customized color balance
gamma can be registered with SIM63-7.
5)
Press [EXECUTE] key.
The printer color patch image (adjustment pattern) is printed
out. (A4 or 11" x 8.5" paper is automatically selected.)
(4.3 Inch LCD model)
The printer color patch image (adjustment pattern) is printed
out. (A4 or 11" x 8.5" paper is automatically selected.)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
6)
Set the color patch image (adjustment pattern) paper printed in
procedure 5) on the document table.
Set the printed color patch image (adjustment pattern) on the
document table. Place the color patch image so that the fine
lines are on the left side in the center reference. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
procedure 5) on the document table.
Set the printed color patch image (adjustment pattern) on the
document table. Place the color patch image so that the fine
lines are on the left side in the center reference. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
7)
Select [FACTORY] target on the operation panel, and press
[EXECUTE] key.
When the color balance is customized with the manual color
balance adjustment (SIM 67-25) according to the user's
request and the color balance is registered as the service tar-
get with SIM 67-27, if the color balance is adjusted to that color
balance, select the service target.
(4.3 Inch LCD model)
[EXECUTE] key.
When the color balance is customized with the manual color
balance adjustment (SIM 67-25) according to the user's
request and the color balance is registered as the service tar-
get with SIM 67-27, if the color balance is adjusted to that color
balance, select the service target.
(4.3 Inch LCD model)
(8.5 Inch LCD model)
The printer color balance adjustment (step 1) is automatically
performed and the color balance check patch image is printed
out.
If there is any streak or unclear print on the printed check pat-
tern, check the print engine for any problems.
performed and the color balance check patch image is printed
out.
If there is any streak or unclear print on the printed check pat-
tern, check the print engine for any problems.
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