Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ▷ View online
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
)S
#HECK
5SE
5SE
!RE
%ND
!UTOMATIC
#HANGE
#HANGE
%XECUTE
%XECUTE
4HOUGH
4HOUGH
!UTOMATIC
%XECUTE
7HEN
)F
)F
9%3
./
9%3
./
9%3
0RESS
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.)
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
(;(&87(
35(66>(;(&87(@72352&21(;(&87,21$1'35,177+(7(673$7&+
3/($6(86(63(&,),('7<3(2)$$25;;6,=(3$3(5
)257+,6$'-8670(17
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
(;(&87(
352&21(;(&87,1*
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
3/($6(6(/(&77+(02'()$&725<256(59,&($1'3/$&(
7+(35,17('7(673$7&+21'2&80(17*/$667+(135(66>(;(&87(@
/,*+7$5($$7/()76,'(21'2&80(17*/$66
(;(&87(
6(59,&(
)$&725<
Q
O P
N
M
L
K
J
I
H
G
F
E
D
C
B
A
Y
M
C
Bk
High
density
density
Low
density
density
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
&21),507+($'-3$7&+$1'35(66>(;(&87(@72$'-2)5(*,675$7,21(;(
$1'35,177+(7(673$7&+
3/($6(86(63(&,),('7<3(2)$25h6,=(3$3(5
)257+,6$'-8670(17
(;(&87(
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
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
3/($6(6(/(&77+(02'()$&725<256(59,&($1'3/$&(
7+(35,17('7(673$7&+21'2&80(17*/$667+(135(66>(;(&87(@
/,*+7$5($$7/()76,'(21'2&80(17*/$66
(;(&87(
6(59,&(
)$&725<
PRINTER CALIBRATION
3
1 2
0
/
.
-
,
+
*
)
(
'
&
%
$
#
;
/
%
$M
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
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
&21),507+($'-867('3$7&+$1'35(66>2.@725(*,67(57+,63$7&+'$7$
2.
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.
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
7(67
(1*,1($872$'-8670(176(59,&(
5(75<
&203/(7(7+,6352&('85(
3/($6(48,77+,602'(
2.
5(68/7
Click on the first or last page to see other MX-6500N / MX-7500N (serv.man19) service manuals if exist.