Sharp MX-6500N / MX-7500N (serv.man11) Service Manual ▷ View online
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 40
10) When "COMPLETED THIS PROCEDURE" is displayed, the
adjustment operation is completed.
Cancel SIM46-74.
Cancel SIM46-74.
CAUTION: The adjustment result becomes valid only when the
both adjustments in the copy mode and in the printer
mode are completed.
For example, if the copy color balance adjustment
(automatic adjustment) is performed and the simulation
is canceled, the adjustment result is invalid.
mode are completed.
For example, if the copy color balance adjustment
(automatic adjustment) is performed and the simulation
is canceled, the adjustment result is invalid.
11) Check the copy color balance and density.
(Refer to the item of the copy color balance and density
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 4), change the factory color balance target with SIM
63-11 and repeat the procedures from 1).
If a satisfactory result is not obtained with the above proce-
dure, perform the manual color balance adjustment (ADJ 10C
(2)).
Also when the service target is selected in procedure 4) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10C (2)).
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 4), change the factory color balance target with SIM
63-11 and repeat the procedures from 1).
If a satisfactory result is not obtained with the above proce-
dure, perform the manual color balance adjustment (ADJ 10C
(2)).
Also when the service target is selected in procedure 4) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10C (2)).
12) Check the printer color balance and density.
(Refer to the item of the printer color balance and density
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 7), change the factory color balance target with SIM
67-26 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 man-
ual adjustment (SIM 67-25) (ADJ 10E (2)).
Also when the service target is selected in procedure 7) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10E (2)).
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 7), change the factory color balance target with SIM
67-26 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 man-
ual adjustment (SIM 67-25) (ADJ 10E (2)).
Also when the service target is selected in procedure 7) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10E (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
Copy quality 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.
* The CCD unit 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.
* 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.
9-C
(1)
Copy color balance and density adjustment
(Automatic adjustment)
Copy color balance and density adjustment
(Automatic adjustment)
a. General
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 modes are revised.
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 modes are revised.
There are following two modes in the auto color balance adjust-
ment.
1)
ment.
1)
Auto color balance adjustment by the serviceman (SIM 46-24
is used.)
is used.)
2)
Auto color balance adjustment by the user (The user program
mode is used.) (The color balance target is the service target.)
The auto color balance adjustment by the user is provided to
reduce the number of service calls.
If the copy color balance is lost for some reason, the user can
use this color balance adjustment to recover the balance.
When, however, the machine has a fatal problem or when the
machine condition is greatly changed, this function does not
work effectively.
If the machine condition is dramatically changed, a fatal prob-
lem occurs, or the normal color targets cannot be obtained,
service must recalibrate the machine to specification.
To perform the adjustment, the above difference must be fully
understood.
mode is used.) (The color balance target is the service target.)
The auto color balance adjustment by the user is provided to
reduce the number of service calls.
If the copy color balance is lost for some reason, the user can
use this color balance adjustment to recover the balance.
When, however, the machine has a fatal problem or when the
machine condition is greatly changed, this function does not
work effectively.
If the machine condition is dramatically changed, a fatal prob-
lem occurs, or the normal color targets cannot be obtained,
service must recalibrate the machine to specification.
To perform the adjustment, the above difference must be fully
understood.
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 41
b. Adjustment procedure
(Auto color balance adjustment by the serviceman)
(Auto color balance adjustment by the serviceman)
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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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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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