Sharp MX-6500N / MX-7500N (serv.man11) Service Manual ▷ View online
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 36
2) Enter the SIM 67-27 mode.
3) Press [SETUP] key.
4) Set the color patch image (adjustment pattern) correctly
4) Set the color patch image (adjustment pattern) correctly
adjusted and printed in the printer color balance adjustment
(Manual adjustment) (SIM 67-25) (ADJ9E (2)) on the docu-
ment table.
A color patch image (adjustment pattern) printed by another
machine can be used.
Set the pattern so that the light density side is on the left side.
Place 5 sheets of white paper on the color patch image
(adjustment pattern).
This procedure must not be executed when the copy color bal-
ance (manual) was adjusted with SIM 67-25 to a unique color
balance requested by the user and it was registered as the
service color balance target with SIM 67-27.
(Manual adjustment) (SIM 67-25) (ADJ9E (2)) on the docu-
ment table.
A color patch image (adjustment pattern) printed by another
machine can be used.
Set the pattern so that the light density side is on the left side.
Place 5 sheets of white paper on the color patch image
(adjustment pattern).
This procedure must not be executed when the copy color bal-
ance (manual) was adjusted with SIM 67-25 to a unique color
balance requested by the user and it was registered as the
service color balance target with SIM 67-27.
5) Press [EXECUTE] key.
The color patch image (adjustment pattern) is read.
6) Press [REPEAT] key, set the second color patch image
(adjustment pattern), and execute the procedure 5) again.
The color balance (gamma) target set level of each color (K, C,
M and Y) can be checked with K/C/M/Y keys.
Check that the set level is increased in the sequence of B - Q
(MAX). If there is no variation or variation is reversed, it is
judged as abnormal.
In case of an abnormality, repair the problem and try again.
M and Y) can be checked with K/C/M/Y keys.
Check that the set level is increased in the sequence of B - Q
(MAX). If there is no variation or variation is reversed, it is
judged as abnormal.
In case of an abnormality, repair the problem and try again.
7) Press [OK] key.
The color balance (gamma) of the color patch image (adjust-
ment pattern) used in the procedure 5) is set as the service tar-
get.
ment pattern) used in the procedure 5) is set as the service tar-
get.
(Procedures to set the service color balance target and the
color balance target for the user color balance adjustment to
the same color balance as the factory color balance target)
color balance target for the user color balance adjustment to
the same color balance as the factory color balance target)
CAUTION: This procedure must not be executed when the copy
color balance was adjusted with SIM 67-25 to a unique
color balance requested by the user and it was regis-
tered as the service color balance target with SIM 67-
27.
When the factory color balance target is changed with
SIM 67-26, be sure to execute this procedure.
color balance requested by the user and it was regis-
tered as the service color balance target with SIM 67-
27.
When the factory color balance target is changed with
SIM 67-26, be sure to execute this procedure.
1)
Enter the SIM 67-28 mode.
2)
Press [EXECUTE] key.
3)
Press [YES] key.
The service color balance target and the color balance target for
the user color balance adjustment are set to the same color bal-
ance as the factory color balance target.
the user color balance adjustment are set to the same color bal-
ance as the factory color balance target.
9-B
Copy/Printer color balance and density
adjustment (Automatic adjustment)
(Basic adjustment)
adjustment (Automatic adjustment)
(Basic adjustment)
This adjustment must be performed in the following cases:
* 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.
* 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.
The color balance adjustment (automatic adjustment) is used to
adjust the copy density of each of Cyan, Magenta, Yellow, and
Black automatically.
When this adjustment is executed, the color balance adjustments
of all the copy/printer modes are revised.
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.
The color balance adjustment (automatic adjustment) is used to
adjust the copy density of each of Cyan, Magenta, Yellow, and
Black automatically.
When this adjustment is executed, the color balance adjustments
of all the copy/printer modes are revised.
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 37
b. Adjustment procedures
(Auto color balance adjustment by the serviceman)
(Auto color balance adjustment by the serviceman)
#OPYPRINTER
3TART
%XECUTE
3ET
5SE
5SE
3ET
./
9%3
9%3
./
./
#OPY
%NTER
0RESS
0RESS
0RESS
#ANCEL
#HECK
#HECK
0RINTER
#HECK
!RE
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#HECK
5SE
5SE
!RE
%ND
!UTOMATIC
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#HANGE
%XECUTE
%XECUTE
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4HOUGH
!UTOMATIC
%XECUTE
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9%3
./
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./
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 38
1) Enter the SIM46-74 mode.
2) Press [EXECUTE] key.
The high density process control is performed, and the copy
color patch image (adjustment pattern) is printed out.
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
color patch image (adjustment pattern) is printed out.
(A4/11" x 8.5" or A3/11" x 17" paper is automatically selected.)
3) Set the color patch image (adjustment pattern) paper printed in
procedure 2) on the document table.
Set the color patch image (adjustment pattern) printed in the
procedure 2) on the document table. Place the color patch
image so that the fine lines are on the left side. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
Set the color patch image (adjustment pattern) printed in the
procedure 2) on the document table. Place the color patch
image so that the fine lines are on the left side. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
4)
Select [FACTORY] target, 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.
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.
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.
5)
Press [EXECUTE] key.
The printer color patch image (adjustment pattern) is printed
out. (A4/11" x 8.5" or A3/11" x 17" paper is automatically
selected.)
The printer color patch image (adjustment pattern) is printed
out. (A4/11" x 8.5" or A3/11" x 17" paper is automatically
selected.)
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Bk
High
density
density
Low
density
density
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 39
6) Set the color patch image (adjustment pattern) printed in the
procedure 5) on the document table.
Set the color patch image (adjustment pattern) printed in the
procedure 2) on the document table. Place the color patch
image so that the fine lines are on the left side. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
Set the color patch image (adjustment pattern) printed in the
procedure 2) on the document table. Place the color patch
image so that the fine lines are on the left side. At that time,
place 5 sheets of white paper on the printed color patch image
(adjustment pattern).
7) Select [FACTORY] target, 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.
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.
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.
8)
The initial setting menu of the halftone image correction is dis-
played. Press [OK] key.
The initial setting of the halftone image correction is per-
formed.
played. Press [OK] key.
The initial setting of the halftone image correction is per-
formed.
9)
Wait until [EXECUTE] key is displayed. When it is displayed,
press it.
The halftone image correction is performed.
press it.
The halftone image correction is performed.
PRINTER CALIBRATION
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PRINTER CALIBRATION
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1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is very slightly copied.
3) Patch for each of Y, M, C, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
The patch density is changed gradually.
High density
Low density
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