Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ▷ View online
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 41
b. Adjustment procedure
(Auto color balance adjustment by the serviceman)
(Auto color balance adjustment by the serviceman)
9%3
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9%3
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#OPY
3TART
%XECUTE
ADJUSTMENT
%NTER
0RESS
3ET
#HECK
0RESS
#ANCEL
#HECK
5SE
5SE
!RE
#HECK
%XECUTE
%XECUTE
5SE
!RE
%ND
!UTOMATIC
#HANGE
4HOUGH
7HEN
%XECUTE
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 42
1) Enter the SIM 46-24 mode.
2) Press [EXECUTE] key. (A4/11" x 8.5" or A3/11" x 17" paper is
automatically selected.)
The color patch image (adjustment pattern) is printed out.
The color patch image (adjustment pattern) is printed out.
3) Set the color patch image (adjustment pattern) paper printed in
procedure 2) on the document table.
Place the printed color patch image (adjustment pattern) paper
on the document table so that the thin lines on the paper are
on the left side. Place 5 sheets of white paper on the printed
color patch image (adjustment pattern) paper.
Place the printed color patch image (adjustment pattern) paper
on the document table so that the thin lines on the paper are
on the left side. Place 5 sheets of white paper on the printed
color patch image (adjustment pattern) paper.
4) Select [FACTORY] target, and press [EXECUTE] key.
When the color balance is customized with the manual color
balance adjustment (SIM 46-21) according to the user's
request and the color balance is registered as the service tar-
get with SIM 63-7, if the color balance is adjusted to that color
balance, select the service target.
balance adjustment (SIM 46-21) according to the user's
request and the color balance is registered as the service tar-
get with SIM 63-7, if the color balance is adjusted to that color
balance, select the service target.
The copy color balance adjustment is automatically executed
to print the color balance check patch image. Wait until the
operation panel shown in procedure 5) is displayed.
to print the color balance check patch image. Wait until the
operation panel shown in procedure 5) is displayed.
5)
Press [OK] key on the operation panel.
According to data of this adjustment, the initial setting of the
halftone image correction is performed.
According to data of this adjustment, the initial setting of the
halftone image correction is performed.
NOTE:
After pressing [OK] key, the initial setting of the halftone image
correction is started. During the operation, "NOW REGISTER-
ING THE NEW TARGET OF HALFTONE PROCON." is dis-
played. This operation takes several minutes.
After completion of the operation, "PLEASE QUIT THIS
MODE" is displayed.
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
After pressing [OK] key, the initial setting of the halftone image
correction is started. During the operation, "NOW REGISTER-
ING THE NEW TARGET OF HALFTONE PROCON." is dis-
played. This operation takes several minutes.
After completion of the operation, "PLEASE QUIT THIS
MODE" is displayed.
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
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Bk
High
density
density
Low
density
density
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 43
6) Check the color balance and density.
(Refer to the item of the copy color balance and density
check.)
check.)
7) Use SIM44-26 to execute the halftone image correction.
(Forcible execution)
Enter the SIM44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
Enter the SIM44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
It takes several minutes to complete the operation. After com-
pletion of the operation, "COMPLETE" is displayed.
pletion of the operation, "COMPLETE" is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, the simulation is canceled.
8) Use the servicing color test chart (UKOG-0326FCZZ/UKOG-
0326FC11) in the Text/Photo mode (Manual) to check the copy
color balance and density. (Refer to the item of the copy color
balance and density check.)
If the copy color balance and density are not satisfactory, per-
form the following procedures.
color balance and density. (Refer to the item of the copy color
balance and density check.)
If the copy color balance and density are not satisfactory, per-
form the following procedures.
9) Execute the initial setting of the halftone image correction.
(SIM 44-21)
10) Execute the halftone image correction. (Forcible execution)
(SIM44-26)
11) Use the servicing color test chart (UKOG-0317FCZZ/UKOG-
0317FC11) in the Text/Printed Photo mode (Manual) to check
the copy color balance/density. (Refer to the item of the copy
color balance and density check.)
the copy color balance/density. (Refer to the item of the copy
color balance and density check.)
Though the above procedures 9) - 11) are performed, the copy
color balance and density are not in the specified range, there may
be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
When satisfactory color balance and density are not obtained from
the automatic adjustment by selecting the factory target in proce-
dure 4), change the factory color balance target with SIM 63-11 and
repeat the procedures from 1).
If a satisfactory result on the color balance and the density is not
obtained with the automatic adjustment, execute the manual
adjustment (SIM 46-21) (ADJ9C (2)).
Also when the service target is selected in procedure 7) to execute
the automatic adjustment and a satisfactory result is not obtained,
perform the manual color balance adjustment (ADJ9C(2)).
color balance and density are not in the specified range, there may
be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
When satisfactory color balance and density are not obtained from
the automatic adjustment by selecting the factory target in proce-
dure 4), change the factory color balance target with SIM 63-11 and
repeat the procedures from 1).
If a satisfactory result on the color balance and the density is not
obtained with the automatic adjustment, execute the manual
adjustment (SIM 46-21) (ADJ9C (2)).
Also when the service target is selected in procedure 7) to execute
the automatic adjustment and a satisfactory result is not obtained,
perform the manual color balance adjustment (ADJ9C(2)).
If the color balance or density is not in the satisfactory level even
after execution of the automatic and manual adjustments, there
may be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
after execution of the automatic and manual adjustments, there
may be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
9-C
(2)
Copy color balance and density adjustment
(Manual adjustment)
Copy color balance and density adjustment
(Manual adjustment)
a. General
The color balance adjustment (Manual adjustment) is used to
adjust the copy density of CMYK. This is used at the following situ-
ation. When the result of auto adjustment described above is not
existing within the range of reference. When a fine adjustment is
required. When there is request from the user for changing (cus-
tomizing) the color balance.
This manual adjustment is executed only for 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.
The color balance adjustment (Manual adjustment) is used to
adjust the copy density of CMYK. This is used at the following situ-
ation. When the result of auto adjustment described above is not
existing within the range of reference. When a fine adjustment is
required. When there is request from the user for changing (cus-
tomizing) the color balance.
This manual adjustment is executed only for 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.
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 44
b. Adjustment procedure
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#OPY COLOR BALANCE AND DENSITY ADJUSTMENT -ANUAL ADJUSTMENT PROCEDURE
FLOWCHART 3)-
FLOWCHART 3)-
3TART
%XECUTE
%NTER
0RESS ;%8%#54%= KEY
4HE ADJUSTMENT CHECK PATTERN IS PRINTED
4HE ADJUSTMENT CHECK PATTERN IS PRINTED
2EFER TO THE PRINTED ADJUSTMENT CHECK PATTERN AND SELECT A
TARGET ADJUSTMENT COLOR WITH THE COLOR KEYS # - 9 +
TARGET ADJUSTMENT COLOR WITH THE COLOR KEYS # - 9 +
3ELECT A TARGET ADJUSTMENT LEVEL WITH THE SCROLL KEY
%NTER
0RESS ;%8%#54%= KEY
4HE ADJUSTMENT CHECK PATTERN IS PRINTED
4HE ADJUSTMENT CHECK PATTERN IS PRINTED
#HECK THE PATCH COLOR BALANCE AND DENSITY IN THE PROCESS
GRAY OF THE COLOR BALANCE CHECK PATTERN )F THE GRAY COLOR IS
SLIGHTLY SHIFTED TO -AGENTA THE COLOR BALANCE IS PROPERLY
ADJUSTED
GRAY OF THE COLOR BALANCE CHECK PATTERN )F THE GRAY COLOR IS
SLIGHTLY SHIFTED TO -AGENTA THE COLOR BALANCE IS PROPERLY
ADJUSTED
!RE THE COLOR BALANCE
AND DENSITY AT THE SATI
SFACTORY LEVEL
AND DENSITY AT THE SATI
SFACTORY LEVEL
!RE THE COLOR BALANCE
AND DENSITY AT THE SATI
SFACTORY LEVEL
AND DENSITY AT THE SATI
SFACTORY LEVEL
!RE THE COLOR BALANCE
AND DENSITY AT THE SATI
SFACTORY LEVEL
AND DENSITY AT THE SATI
SFACTORY LEVEL
#ANCEL THE 3)-
MODE
0ERFORM THE INITIAL SETTING OF THE HALFTONE
#HECK THE COPY COLOR BALANCE AND DENSITY ADJUSTMENT RESULT WITH THE
TEST CHART
TEST CHART
5SE THE TEST CHART 5+/'
&#::5+/'
&#
TO MAKE A COPY IN THE 4EXT0RINTED 0HOTO MODE AND CHECK
THE COLOR BALANCE AND DENSITY
TO MAKE A COPY IN THE 4EXT0RINTED 0HOTO MODE AND CHECK
THE COLOR BALANCE AND DENSITY
#HECK TO CONFIRM THAT THE INITIAL SETTING OF THE HALFTONE
0ERFORM THE INITIAL SETTING OF THE HALFTONE
0ERFORM THE HALFTONE
5SE THE TEST CHART 5+/'
&#::5+/'
&#
TO MAKE A COPY IN THE 4EXT0RINTED 0HOTO MODE AND CHECK
THE COLOR BALANCE AND DENSITY
TO MAKE A COPY IN THE 4EXT0RINTED 0HOTO MODE AND CHECK
THE COLOR BALANCE AND DENSITY
3ET
%ND
)F SATISFACTORY COLOR BALANCE AND DENSITY ARE NOT
OBTAINED WITH THE ADJUSTMENT CHECK THE PRINT
ENGINE FOR ANY PROBLEMS
)F
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