Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man13) Service Manual ▷ View online
MX-4101N ADJUSTMENTS 5 – 85
6)
Check the color balance and density.
There are two methods to check the color balance and density.
(Method 1)
Check to insure that the printed color balance check patch
image is within the following specifications.
There are two methods to check the color balance and density.
(Method 1)
Check to insure that the printed color balance check patch
image is within the following specifications.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
(Method 2)
By printing the color balance adjustment sheet with SIM 67-25
and comparing each process (CMY) black patch color balance
with the black patch, the color balance adjustment can be
checked more precisely.
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
(Method 2)
By printing the color balance adjustment sheet with SIM 67-25
and comparing each process (CMY) black patch color balance
with the black patch, the color balance adjustment can be
checked more precisely.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)
(Method 3)
Use SIM64-5 to print the print test pattern, and check the color
balance and density.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed out.
Use SIM64-5 to print the print test pattern, and check the color
balance and density. (Refer to the item of the printer color bal-
ance and density check.)
When the factory target is selected in the procedure 4) and the
auto adjustment is executed but a satisfactory result is not
obtained on the color balance and the density, use SIM 67-26
to change the factory color balance target and repeat the pro-
cedures from 1).
If a satisfactory result is not obtained with the above proce-
dure, perform the manual color balance adjustment (ADJ
20C).
When the service target is selected in the procedure 4) and the
auto adjustment is executed but a satisfactory result is not
obtained, execute the manual color balance adjustment (ADJ
21C).
Cancel SIM 67-25.
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)
(Method 3)
Use SIM64-5 to print the print test pattern, and check the color
balance and density.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed out.
Use SIM64-5 to print the print test pattern, and check the color
balance and density. (Refer to the item of the printer color bal-
ance and density check.)
When the factory target is selected in the procedure 4) and the
auto adjustment is executed but a satisfactory result is not
obtained on the color balance and the density, use SIM 67-26
to change the factory color balance target and repeat the pro-
cedures from 1).
If a satisfactory result is not obtained with the above proce-
dure, perform the manual color balance adjustment (ADJ
20C).
When the service target is selected in the procedure 4) and the
auto adjustment is executed but a satisfactory result is not
obtained, execute the manual color balance adjustment (ADJ
21C).
Cancel SIM 67-25.
If a satisfactory result on the print color balance and the density is
not obtained with the automatic adjustment, execute the manual
adjustment (SIM 67-25) (ADJ 21B).
not obtained with the automatic adjustment, execute the manual
adjustment (SIM 67-25) (ADJ 21B).
21-B
Printer color balance adjustment (Manual
adjustment)
adjustment)
This adjustment is needed in the following situations:
* When the copy color balance/density adjustment is required.
* When the copy color balance/density adjustment is required.
Refer to the page of the ADJ print color balance/density adjust-
ment.
ment.
* After the copy color balance/density adjustment.
a. General
The color balance adjustment (Manual adjustment) is used to
adjust the printer density (17 pts for each color) of C, M, Y and K.
This is used at the following situation. When the result of auto
adjustment described above is not existing within the range of ref-
erence. When a fine adjustment is required. When there is request
from the user for changing (customizing) the color balance.
In this manual adjustment, adjust only the color patch which could
not adjusted properly in the automatic adjustment.
If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.
b. Note for the color balance adjustment (Manual adjustment)
1)
a. General
The color balance adjustment (Manual adjustment) is used to
adjust the printer density (17 pts for each color) of C, M, Y and K.
This is used at the following situation. When the result of auto
adjustment described above is not existing within the range of ref-
erence. When a fine adjustment is required. When there is request
from the user for changing (customizing) the color balance.
In this manual adjustment, adjust only the color patch which could
not adjusted properly in the automatic adjustment.
If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.
b. Note for the color balance adjustment (Manual adjustment)
1)
After execution of the copy color balance/density adjustment.
2)
When setting the color patch image adjustment pattern on the
document table, place 5 sheets of white paper on the color
patch image adjustment pattern.
document table, place 5 sheets of white paper on the color
patch image adjustment pattern.
3)
Be sure to use the specified paper for color.
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High density
Low density
Patch A of each of Y, M, C, and
BK are not copied.
BK are not copied.
2) Patch C or D of each of Y, C, M, and
BK is very slightly copied.
3) Patch for each of C, M, Y, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
1) The max. density section is not blurred.
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Blend
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High density
Low density
Patch A of each of Y, M, C, and
BK are not copied.
BK are not copied.
2) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
3) Patch for each of C, M, Y, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
The max. density section is not blurred.
MX-4101N ADJUSTMENTS 5 – 86
c. Adjustment procedure
YES
YES
NO
NO
Printer color balance and density adjustment (Manual adjustment) procedure
flowchart (SIM67-25)
flowchart (SIM67-25)
Start
Execute ADJ21C (Printer color balance and density
adjustment (Manual adjustment). (*1)
adjustment (Manual adjustment). (*1)
Enter the SIM67-25 mode, and select A3
(11 " x 17 ") paper. (Automatic selection.)
(11 " x 17 ") paper. (Automatic selection.)
Press [EXECUTE] key.
(The adjustment pattern is printed.)
(The adjustment pattern is printed.)
Check the printed adjustment check pattern,
and select a target adjustment color with the
color keys (C,M,Y,K).
and select a target adjustment color with the
color keys (C,M,Y,K).
Select a target adjustment density level with the
scroll key.
scroll key.
Enter the adjustment value with 10 key.
Press [EXECUTE] key.
(The adjustment pattern is printed.)
(The adjustment pattern is printed.)
Are the color balance
and density at the sati-
sfactory level?
and density at the sati-
sfactory level?
Cancel the SIM67-25 mode.
Check the self print check pattern to check the printer
color balance and density adjustment result. (*2)
color balance and density adjustment result. (*2)
Use SIM64-5 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.
Are the color balance and
density at the satisfactory
level?
density at the satisfactory
level?
Set the service target for the automatic
printer color balance adjustment.
(SIM67-27)
printer color balance adjustment.
(SIM67-27)
End
Check the patch color balance and density in the
process gray of the color balance check pattern.
(If the gray color is slightly shifted to Magenta,
the color balance is properly adjusted.)
process gray of the color balance check pattern.
(If the gray color is slightly shifted to Magenta,
the color balance is properly adjusted.)
*1:
If satisfactory color balance and density are not
obtained with the adjustment, check the print
engine for any problems.
*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 satisfactory color balance and density are not
obtained with the adjustment, check the print
engine for any problems.
*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.
MX-4101N ADJUSTMENTS 5 – 87
1)
Enter the SIM 67-25 mode.
2)
Press [EXECUTE] key. (A3 or 11" x 17" paper is automatically
selected.)
The color balance adjustment pattern is printed.
selected.)
The color balance adjustment pattern is printed.
3)
Check that the following specification is satisfied or the color
balance is satisfactory.
If not, execute the following procedures.
balance is satisfactory.
If not, execute the following procedures.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)
4)
Select the color to be adjusted with the color select key, and
select the adjustment point with the scroll key.
select the adjustment point with the scroll key.
5)
Enter the adjustment value with 10-key and press [OK] key.
The adjustment value is set in the range of 0 - 255 (1 - 99).
When SIM 67-24 is used to adjust the automatic color balance
and density, all the set values of this simulation are set to 50.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
Repeat procedures of 2) - 5) until the condition of 3) is satis-
fied.
When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black/gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the black/gray patch level as far as possible.
The adjustment value is set in the range of 0 - 255 (1 - 99).
When SIM 67-24 is used to adjust the automatic color balance
and density, all the set values of this simulation are set to 50.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
Repeat procedures of 2) - 5) until the condition of 3) is satis-
fied.
When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black/gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the black/gray patch level as far as possible.
6)
Cancel SIM 67-25.
EXECUTE
EXECUTE
or end of print
OK
10-key
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CMY
Blend
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High density
Low density
Patch A of each of Y, M, C, and
BK are not copied.
BK are not copied.
2) Patch C or D of each of Y, C, M, and
BK is very slightly copied.
3) Patch for each of C, M, Y, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
1) The max. density section is not blurred.
MX-4101N ADJUSTMENTS 5 – 88
7)
Use SIM 64-5 to print the print test pattern and check the print
color balance and the density.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed.
color balance and the density.
Set each set value to the default and press [EXECUTE] key.
The print test pattern is printed.
8)
If the color balance is customized, use SIM 67-27 to register
the color balance as the service target.
If the color balance is not customized, this procedure is not
required.
If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.
In the next color balance adjustment, select the service target
color balance in the automatic color balance adjustment mode
to make an adjustment to the similar color balance as the reg-
istered color balance.
the color balance as the service target.
If the color balance is not customized, this procedure is not
required.
If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.
In the next color balance adjustment, select the service target
color balance in the automatic color balance adjustment mode
to make an adjustment to the similar color balance as the reg-
istered color balance.
NOTE: If the color balance is customized, use SIM 67-27 to regis-
ter the color balance as the service target. If the color bal-
ance is not customized, this procedure is not required.
If the customized color balance is registered as the service
target, the automatic color balance adjustment can be
made in the next color balance adjustment.
In the next color balance adjustment, select the service tar-
get color balance in the automatic color balance adjust-
ment mode to make an adjustment to the similar color
balance as the registered color balance.
ance is not customized, this procedure is not required.
If the customized color balance is registered as the service
target, the automatic color balance adjustment can be
made in the next color balance adjustment.
In the next color balance adjustment, select the service tar-
get color balance in the automatic color balance adjust-
ment mode to make an adjustment to the similar color
balance as the registered color balance.
(Gamma setting of auto color balance adjustment service
color balance target)
a. General
When the automatic color balance adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) target
In the above three, only the service color balance target can be set
to a desired level.
This adjustment is required in the following cases.
* When the copy color balance/density adjustment (manual adjust-
color balance target)
a. General
When the automatic color balance adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) target
In the above three, only the service color balance target can be set
to a desired level.
This adjustment is required in the following cases.
* When the copy color balance/density adjustment (manual adjust-
ment) is executed with SIM 67-25.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as
improper.
• Color balance target for the printer color balance adjustment
Type
Descriptions
A
Factory color
balance
(gamma)
target
balance
(gamma)
target
There are three kinds of the color balance
target, and each of them is specified according
to the machine design. Use SIM 67-26 to select
one of them as the factory target. The default
setting (factory setting) is the color balance
(DEF1) which emphasizes color reproduction.
target, and each of them is specified according
to the machine design. Use SIM 67-26 to select
one of them as the factory target. The default
setting (factory setting) is the color balance
(DEF1) which emphasizes color reproduction.
B
Service color
balance
(gamma)
target
balance
(gamma)
target
This target is used when the user requests to
customize the color balance to user's desired
level. In advance, the user's unique color
balance must be registered as the service color
balance target. The above registration (setting)
is made by the serviceman with SIM 67-25 to
adjust the color balance and with SIM 67-27 to
register it.
This color balance target is used when the user
executes the color balance adjustment. When,
therefore, the service color balance target is
changed, the color balance target of the user's
color balance adjustment is also changed.
When, however, SIM 67-28 is executed, the
color balance is set to the factory color balance
target set with SIM 67-26. The default setting
(factory setting) of the color balance is same as
the factory color balance target. (Emphasized
on color reproduIf the user does not request for
customizing the color balance, be sure to use
SIM 67-28 to set the color balance to the factory
color balance targetction (DEF1))
customize the color balance to user's desired
level. In advance, the user's unique color
balance must be registered as the service color
balance target. The above registration (setting)
is made by the serviceman with SIM 67-25 to
adjust the color balance and with SIM 67-27 to
register it.
This color balance target is used when the user
executes the color balance adjustment. When,
therefore, the service color balance target is
changed, the color balance target of the user's
color balance adjustment is also changed.
When, however, SIM 67-28 is executed, the
color balance is set to the factory color balance
target set with SIM 67-26. The default setting
(factory setting) of the color balance is same as
the factory color balance target. (Emphasized
on color reproduIf the user does not request for
customizing the color balance, be sure to use
SIM 67-28 to set the color balance to the factory
color balance targetction (DEF1))
C
User color
balance
(gamma)
target
balance
(gamma)
target
Same color balance as the service color
balance (gamma) target When the service color
balance target is changed, this color balance
target is also changed accordingly.
balance (gamma) target When the service color
balance target is changed, this color balance
target is also changed accordingly.
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