Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) Service Manual ▷ View online
MX-3640N ADJUSTMENTS AND SETTINGS 5 – 38
10) When "COMPLETED T HIS PROCEDURE" is displayed , the
adjustment operation is completed.
Cancel SIM46-74.
Cancel SIM46-74.
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
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 co lor balance and den sity
check.)
When satisfactory color balance and density are not obtained
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 satisfacto ry result is not obtained with the above proce-
If a satisfacto ry 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-
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
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 ba lance and the density is
If a satisfactory result on the color ba lance 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-
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 satisfactor y level even
after execution of the automatic and man ual adjustments, there
may be another cause.
Troubleshoot the cause, rep air or perform necessary works, and
Troubleshoot the cause, rep air or perform necessary works, and
repeat the adjustment from the beginning.
10-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.
10-C
(1)
Copy color balance and density adjustment
(Automatic adjustment)
a. General
The color balance adjustment (automatic adjustment) is used to
The color balance adjustment (automatic adjustment) is used to
adjust the co py density of each of Cyan, Magenta, Yellow, and
Black automatically.
When this adjustment is executed, the color balance adjustments
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) Auto color balance adjustment by the ser viceman (SIM 46-24
1) Auto color balance adjustment by the ser viceman (SIM 46-24
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 use r is provided to
The auto color balance adjustment by the use r is provided to
reduce the number of service calls.
If the copy color balance is lost for some reason, the user can
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
When, however, the machine has a fatal problem or when the
machine condition is gr eatly changed, this function does not
work effectively.
If the machine condition is dramatically changed, a fatal prob-
If the machine condition is dramatically changed, a fatal prob-
lem occurs, or the normal color t argets cannot be obt ained,
service must recalibrate the machine to specification.
To perform the adjustment, the above difference must be fully
To perform the adjustment, the above difference must be fully
understood.
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MX-3640N ADJUSTMENTS AND SETTINGS 5 – 39
b. Adjustment procedure
(Auto color balance adjustment by the serviceman)
(Auto color balance adjustment by the serviceman)
YES
NO
NO
YES
YES
NO
Copy color balance and density adjustment (Automatic adjustment)
(SIM46-24) procedure flowchart
(SIM46-24) procedure flowchart
Start
Execute ADJ10C(1) Copy color balance and density adjustment
(automatic density).
(automatic density).
Enter the SIM46-24 mode, and select A4 (11" x 8.5") paper.
(Automatic selection)
(Automatic selection)
Press [EXECUTE] key. (The adjustment pattern is printed.)
Set the adjustment pattern on the document table. Select the
FACTORY target or the SERVICE target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is
automatically performed to print the check pattern.) (*1)
FACTORY target or the SERVICE target, and press [EXECUTE] key.
(The adjustment pattern is scanned, and the adjustment is
automatically performed to print the check pattern.) (*1)
Check the printed check pattern for any streaks or unclear copy. (*4)
Press [OK] key, and the initial setting of the halftone image correction
is automatically performed. (*3)
is automatically performed. (*3)
Cancel SIM46-24
Check the color balance and density adjustment result.
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11) to make a
copy in the Text/Printed Photo mode, and check the copy color bal-
ance and density.
copy in the Text/Printed Photo mode, and check the copy color bal-
ance and density.
Use SIM46-21 to print the color balance check pattern, and check the
patch color balance and density in the process gray. (If the color bal-
ance is slightly shifted to Magenta, it is properly adjusted.)
patch color balance and density in the process gray. (If the color bal-
ance is slightly shifted to Magenta, it is properly adjusted.)
Are the color balance and den-
sity at the satisfactory level?
sity at the satisfactory level?
Check that the initial setting of the halftone image correction was properly
performed. (*3)
performed. (*3)
Execute the initial setting of the halftone image correction.
(SIM44-21)
(SIM44-21)
Execute the halftone image correction. (SIM44-26)
Use the test chart (UKOG-0326FCZZ/UKOG-0326FC11)
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
to make a copy in the Text/Printed Photo mode, and check
the color balance and density.
Are the color balance and den-
sity at the satisfactory level?
sity at the satisfactory level?
End
Automatic color balance target change
Change the color balance and
density target. (SIM63-11)
density target. (SIM63-11)
Though the
FACTORY color
balance and density
target (available in 3 kinds)
is changed, satisfactory color
balance and density are not
obtained (SIM63-11),
or the SERVICE
target is selected.
FACTORY color
balance and density
target (available in 3 kinds)
is changed, satisfactory color
balance and density are not
obtained (SIM63-11),
or the SERVICE
target is selected.
*1:
When the copy color balance and density are
customized and registered as the SERVICE
target, select the SERVICE target.
*2:
If satisfactory color balance and density are
not obtained with ADJ10C(2) (Manual copy
color balance and density adjustment)
(SIM46-21/44-21), check the print engine for
any problems.
*3:
If the initial setting of the halftone image
correction is not properly made, satisfactory
color balance and density cannot be
obtained. In this case, check the print engine
for any problems.
*4:
If there is any streak or unclear copy on the
printed check pattern, check the print engine
for any problems.
When the copy color balance and density are
customized and registered as the SERVICE
target, select the SERVICE target.
*2:
If satisfactory color balance and density are
not obtained with ADJ10C(2) (Manual copy
color balance and density adjustment)
(SIM46-21/44-21), check the print engine for
any problems.
*3:
If the initial setting of the halftone image
correction is not properly made, satisfactory
color balance and density cannot be
obtained. In this case, check the print engine
for any problems.
*4:
If there is any streak or unclear copy on the
printed check pattern, check the print engine
for any problems.
Execute ADJ10C(2) (Manual copy color
balance and density adjustment).
(SIM46-21/44-21).(*2)
balance and density adjustment).
(SIM46-21/44-21).(*2)
MX-3640N ADJUSTMENTS AND SETTINGS 5 – 40
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
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 sheet s of white p aper on the pr inted
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.
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.
5) Press [OK] key on the operation panel.
According to data of this adjustment, the initial setting of the
halftone image correction is performed.
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
After completion of the operation, "PLEASE
QUIT THIS
MODE" is displayed.
Do not cancel the simulation until "PLEASE QUIT THIS
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
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MX-3640N ADJUSTMENTS AND SETTINGS 5 – 41
6) Check the color balance and density.
(Refer to the item of the copy co lor balance and den sity
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 ope ration. After com-
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-
If the copy color balance and density are not satisfactory, per-
form the following procedures.
9) Execute the initial settin g of the halftone image corr ection.
(SIM 44-21)
10) Execute the half tone 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.)
Though the above procedur es 9) - 11) are per formed, the copy
color balance and density are not in the specified range, there may
be another cause.
Troubleshoot the ca use, repair or perform necessary works, and
Troubleshoot the ca use, repair or perform necessary works, and
repeat the adjustment from the beginning.
When satisfactory color balance and density are not obtained from
When satisfactory color balance and density are not obtained from
the automatic adjustment by selecting the factory t arget 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 co lor balance and the density is not
If a satisfactory result on the co lor balance and the density is not
obtained with the a utomatic adjustment, execute the manual
adjustment (SIM 46-21) (ADJ 10C (2)).
Also when the service target is selected in procedure 7) to execute
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 (ADJ 10C(2)).
If the color balance or density is not in the satisfactory level even
after execution of the automa tic and manual adju stments, there
may be another cause.
Troubleshoot the ca use, repair or perform necessary works, and
Troubleshoot the ca use, repair or perform necessary works, and
repeat the adjustment from the beginning.
10-C
(2)
Copy color balance and density adjustment
(Manual adjustment)
a. General
The color balance adjustme nt (Manual adjustment) is used to
The color balance adjustme nt (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 adjustme nt 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
This manual adjustment is executed only for the color patch which
could not adjusted properly in the automatic adjustment.
If the co lor balance is improper, execute the automatic color bal-
If the co lor balance is improper, execute the automatic color bal-
ance adjustment in advance, and execute this adjustment for better
efficiency.
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