Sharp MX-4140N / MX-4141N / MX-5140N / MX-5141N (serv.man7) Service Manual ▷ View online
MX-5141N ADJUSTMENTS AND SETTINGS 5 – 50
6)
Set the color patch image (adjustment pattern) printed in the
procedure 5) on the document table.
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).
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.
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.
tern, check the print engine for any problems.
8)
The initial setting menu of the halftone image correction is dis-
played. Press [OK] key.
played. Press [OK] key.
The initial setting of the halftone image correction is per-
formed.
formed.
9)
Wait until [EXECUTE] key is displayed. When it is displayed,
press it.
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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MX-5141N ADJUSTMENTS AND SETTINGS 5 – 51
10) When "COMPLETED THIS PROCEDURE" is displayed, the
adjustment operation is completed.
Cancel SIM46-74.
NOTE: The adjustment result becomes valid only when the both
adjustments in the copy mode and in the printer mode are
completed.
completed.
For example, if the copy color balance adjustment (auto-
matic adjustment) is performed and the simulation is can-
celed, the adjustment result is invalid.
matic adjustment) is performed and the simulation is can-
celed, 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.)
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).
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 11C
(2)).
dure, perform the manual color balance adjustment (ADJ 11C
(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
11C (2)).
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
11C (2)).
12) Check the printer color balance and density.
(Refer to the item of the printer color balance and density
check.)
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).
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 11E (2)).
not obtained with the automatic adjustment, execute the man-
ual adjustment (SIM 67-25) (ADJ 11E (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
11E (2)).
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
11E (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.
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.
repeat the adjustment from the beginning.
11-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
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.
11-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.
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.
of all the copy modes are revised.
There are following two modes in the auto color balance adjust-
ment.
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.)
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.
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.
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.
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.
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.
understood.
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MX-5141N ADJUSTMENTS AND SETTINGS 5 – 52
b. Adjustment procedure
(Auto color balance adjustment by the serviceman)
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MX-5141N ADJUSTMENTS AND SETTINGS 5 – 53
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.)
automatically selected.)
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.
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.
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.
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.
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.
MODE" is displayed.
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
MODE" is displayed.
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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
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