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MX-5500N MX-6200N MX-7000N (serv.man45)
Pages
76
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6.43 MB
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PDF
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Service Manual
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Device
Copying Equipment / Adjustments
File
mx-5500n-mx-6200n-mx-7000n-sm45.pdf
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Sharp MX-5500N / MX-6200N / MX-7000N (serv.man45) Service Manual ▷ View online

MX-7000N  ADJUSTMENTS  6 – 46
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
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 (adjust-
ment pattern) paper.
4)
Press [FACTORY] key, 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 the next procedure is displayed.
NOTE:
Check the printed color balance check patch image to insure
that the color balance adjustment result is satisfactory to deter-
mine how many times the procedures 5) - 8) must be repeated.
If the color balance adjustment result is not satisfactory and if
the procedure 5) is satisfactory, go to the procedure 9).
The procedures 5) - 8) can be repeated max. 3 times. 
When this procedure is repeated, the color balance adjustment
accuracy is improved, especially the color balance adjustment
accuracy in the low density area is improved. Note that the
color balance adjustment accuracy, however, varies depend-
ing on the machine status.
Remark:
(Descriptions on FACTORY key and SERVICE key in the color
balance auto adjustment menu.)
There are two kinds of the gamma target for the color balance
auto adjustment; Factory and Service.
FACTORY key and SERVICE key are used to select one of the
above two.
Factory target color balance: Standard color balance (It can be
selected from the three kinds of fixed color balances with SIM
63-11.)
Service target color balance: The color balance can be cus-
tomized according to the user's request. (Variable)
When shipping, the service target gamma data and the factory
target gamma data are the same. Both are set to the standard
color balance when shipping.
For the service target, the customized color balance gamma
can be registered with SIM 63-7.
5)
Press [REPEAT] key.
The operation panel is changed and [EXECUTE] key is dis-
played. 
6)
Press [EXECUTE] key.
The color patch image (adjustment pattern) is printed out. 
7)
Set the color patch image (adjustment pattern) printed in the
procedure same as the procedure 3) on the document table. 
8)
Press [EXECUTE] key.
The copy color balance adjustment is automatically performed,
and the color balance check patch image is printed out.
9)
Press [OK] key.
After pressing [OK] key, the initial setting of the half tone 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.
NOTE:
Do not cancel the simulation until "PLEASE QUIT THIS
MODE" is displayed.
SIMULATION NO.46-24
TEST
ENGINE HALFTONE AUTO ADJUSTMENT
PLEASE SELECT THE MODE (FACTORY) OR (SERVICE) AND PLACE
THE PRINTED TEST PATCH ON DOCUMENT GLASS THEN PRESS [EXECUTE].
*LIGHT AREA AT LEFT SIDE ON DOCUMENT GLASS.
,
SERVICE
FACTORY
EXECUTE
CLOSE
SIMULATION NO.46-24
TEST
ENGINE HALFTONE AUTO ADJUSTMENT
OK
CONFIRM THE ADJUSTED PATCH AND PRESS [OK] TO REGISTER THIS PATCH DATA
, PRESS [REPEAT] TO CONTINUE THIS PROCEDURE.
REPEAT
CLOSE
SIMULATION NO.46-24
TEST
ENGINE HALFTONE AUTO ADJUSTMENT
EXECUTE
CLOSE
PRESS [EXECUTE] TO PRINT THE TEST PATCH
FOR THIS ADJUSTMENT
SIMULATION NO. 46-24
TEST
ENGINE HALFTONE AUTO ADJUSTMENT
OK
CONFIRM THE ADJUSTED PATCH AND PRESS [OK] TO REGISTER THIS PATCH DATA
,PRESS [REPEAT] TO CONTINUE THIS PROCEDURE.
REPEAT
CLOSE
SIMULATION NO. 46-24
TEST
ENGINE HALFTONE AUTO ADJUSTMENT
CLOSE
COMPLETED THIS PROCEDURE.
PLEASE QUIT THIS MODE.
MX-7000N  ADJUSTMENTS  6 – 47
10) Check the color balance and density.
There are three methods to check the color balance and the
density.
(Method 1)
Check to insure that the printed color balance check patch
image is within the following specifications.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
(Method 2)
By printing the color balance adjustment sheet with SIM 46-21
and comparing each process (CMY) black patch color balance
with the black patch, the color balance adjustment can be
checked more precisely.
(Method 3)
Use the servicing color test chart (UKOG-0317FCZZ/11) in the
Text/Printed Photo mode (Manual) to check the copy color bal-
ance 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
22D).
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
22D).
11) Use SIM 44-26 to execute the half tone image correction.
(Forcible execution)
Enter the SIM 44-26 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.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, the simulation is canceled.
12) Use the servicing color test chart (UKOG-0317FCZZ/11) in the
Text/Photo mode (Manual) to check the copy color balance/
density. (Refer to the item of the copy color balance/density
check.)
If the copy color balance and density are not satisfactory, per-
form the following procedures.
13) Execute the initial setting of the half tone image correction.
(SIM 44-21)
14) Execute the half tone image correction. (Forcible execution)
(SIM44-26)
15) Use the servicing color test chart (UKOG-0317FCZZ/11) in the
Text/Printed Photo mode (Manual) to check the copy color bal-
ance/density. (Refer to the item of the copy color balance/den-
sity check.)
Repeat the procedures 13) – 15) until a satisfactory result is
obtained.
However, the number of times of repeat is limited to 3 times. If the
copy color balance and density are not adjusted to the specified
level by repeating the procedures 3 times, there may be another
cause.
Troubleshoot the cause and repair or perform proper treatments,
and try all the procedures of the print image adjustment from the
beginning.
If the automatic adjustment cannot obtain satisfactory results of the
copy color balance and density, use SIM 46-21 (ADJ 22D) (Manual
adjustment).
C
Y
Max
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
M
Bk
Fig. 1 PG image
Low density
High density
1) The max. density
section is not blurred.
Patch A of each of Y, M,
C, and BK are not copied.
2) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
3) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.
C
Y
Max
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
M
Bk
CMY
mixed
color
Low density
High density
1) The max. density
section is not blurred.
3) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
2) Patch A of each of Y, M,
C, and BK are not copied.
4) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
CLOSE
TOUCH [EXECUTE] THEN EXECUTION START.
K
M
Y
C
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
[S_VALUE]
#1: 907, #2: 902, #3: 909, #4:921, #5:936
#6: 347, #7:992, #8:1047, #9:1081, #10:1137
#11:1183, #12:1222, #13:1261, #14:1283,#15:1260
1/1
EXECUTE
CLOSE
K
M
Y
C
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
[S_VALUE]
#1: ERR, #2: ERR, #3: ERR, #4: ERR, #5: ERR
#6: ERR, #7: ERR, #8: ERR, #9: ERR, #10: ERR
#11: ERR, #12: ERR, #13: ERR, #14: ERR,#15: ERR
1/1
EXECUTE
CLOSE
MX-7000N  ADJUSTMENTS  6 – 48
 
22-D
Copy color balance adjustment (Manual 
adjustment)
This adjustment is required in the following cases:
* When a consumable part (developer, OPC drum, transfer belt) is
replaced.
* When the CCD is replaced.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
a. General
The color balance adjustment (Manual adjustment) is used to
adjust the copy density (15 pts for each color) of CMYK according
to a request from the user for changing (customizing) the color bal-
ance because the automatic adjustment stated above is resulted in
an unsatisfactory result or a fine adjustment is required.
In this manual adjustment, adjust only 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.
b. Note for the color balance adjustment (Manual adjustment)
1)
The print engine section must have been adjusted properly.
2)
The CCD gamma adjustment must have been adjusted prop-
erly.
3)
Set the color patch image adjustment patter on the document
table, and place 5 sheet of white paper on it.
4)
Be sure to use the specified paper for color.
5)
Before execution of the image quality check and adjustment,
be sure to execute the following corrections to set the image
forming section to the optimum state.
* Execute the high density image correction (process correc-
tion) forcibly. (SIM 44-6)
* Execute the half tone image correction forcibly. (SIM 44-26)
c. Adjustment procedure
1)
Enter the SIM 46-21 mode.
2)
Press [EXECUTE] key. (A3 or 11" x 17" paper is automatically
selected.)
The color balance adjustment pattern is printed.
3)
Check that the following specification is satisfied or the color
balance is satisfactory.
If not, execute the following procedures.
The print density must be changed gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.
4)
Select the color to be adjusted with the color select key, and
select the adjustment point with the scroll key.
5)
Enter the adjustment value with 10-key and press [OK] key.
The adjustment value is set in the range of 245 – 755 (1 –
999). When SIM 46-24 is used to adjust the automatic color
balance and density, all the set values of this simulation are set
to 500.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
Repeat procedures of 2) – 5) until the condition of 3) is satis-
fied.
When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A – O to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the black and gray patches, adjust so that each
process (CMY) black/gray patch color balance of A – O
approaches the black/gray patch level as far as possible.
6)
Make a copy of the servicing color test chart (UKOG-
0317FCZZ/11) and a user's document according to necessity
in the normal copy mode, the text/Printed Photo mode (Man-
ual) to check the adjustment result. (Refer to the item of the
copy color balance/density check.)
7)
Execute SIM 44-21. (Execute the initial setting of the half tone
image correction.)
It takes several minutes to complete the operation. After com-
pletion of the operation, "COMPLETE" is displayed.
A : 500
;
POINT1
B : 500
;
POINT2
C : 500
;
POINT3
D : 500
;
POINT4
A:
SIMULATION NO.46-21
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [ALL(COLOR)]
XXX
245
755
OK
TEST
CLOSE
E : 500
;
POINT5
F : 500
;
POINT6
G : 500
;
POINT7
H : 500
;
POINT8
I : 500
;
POINT9
J : 500
;
POINT10
K : 500
;
POINT11
L : 500
;
POINT12
EXECUTE
K
C
M
Y
A : 400
;
POINT1
B : 500
;
POINT2
C : 500
;
POINT3
D : 500
;
POINT4
A:
SIMULATION NO.46-21
ENGINE COLOR BALANCE MANUAL ADJUSTMENT [ALL(COLOR)]
XXX
245
755
OK
TEST
CLOSE
E : 500
;
POINT5
F : 500
;
POINT6
G : 500
;
POINT7
H : 500
;
POINT8
I : 500
;
POINT9
J : 500
;
POINT10
K : 500
;
POINT11
L : 500
;
POINT12
EXECUTE
K
C
M
Y
10-key
or self print end
C
EXECUTE
EXECUTE
Max
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
C
M
Y
Bk
Low density
High density
1) The max. density
section is not blurred.
3) Patch C or D of each of Y, C, M,
and BK is very slightly copied.
2) Patch A of each of Y, M,
C, and BK are not copied.
4) Patch for each of C, M, Y, BK
• The patch density is identical between patches or not reversed.
• The patch density is changed gradually.
CMY
mixed
color
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
CLOSE
TOUCH [EXECUTE] THEN EXECUTION START.
MX-7000N  ADJUSTMENTS  6 – 49
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
This procedure is to save the copy color balance adjustment
data as the reference data for the half tone correction.
Immediately after execution of ADJ 22D (Color balance adjust-
ment, Manual) with SIM 46-21, be sure to execute this proce-
dure.
When ADJ 22C (Color balance adjustment, Auto) is executed
with SIM 46-24, this procedure is automatically executed.
When [EXECUTE] key is pressed, it is highlighted and the
operation is started.
8)
Execute SIM 44-26 to perform the half tone image correction.
(Forcible execution)
Enter the SIM 44-26 mode and press [EXECUTE] key.
[EXECUTE] key is highlighted and the operation is started.
It takes several minute to complete the operation. After com-
pletion of the operation, "COMPLETE" is displayed.
(Normal end (Auto transition))
(Abnormal end (Auto transition))
After completion of the operation, cancel the simulation.
9)
Make a copy of the servicing color test chart (UKOG-
0317FCZZ/11) and a user's document according to necessity
in the Text/Printed Photo mode (Manual) and check the adjust-
ment result again. (Refer to the item of the copy color balance/
density check.)
If the copy color balance and density are not in the specified
level, repeat procedures of 7) – 9) until they are in the speci-
fied range.
The number of repeat is, however, limited to 3 times.
If the copy color balance and density are not adjusted to the
specified level by repeating the procedures 3 times, there may
be another cause.
Troubleshoot the cause, and repair or perform proper treat-
ments, and try all the procedures of the print image adjustment
from the beginning.
(NOTE)
If the color balance is customized, use SIM 63-7 to register the
color balance as the service target.
If the color balance is not customized, this procedure is not
required.
If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.
In the next color balance adjustment, select the service target
color balance in the automatic color balance adjustment mode
to make an adjustment to the similar color balance as the reg-
istered color balance.
(Auto color balance adjustment target gamma setting)
a. General
When the automatic color balance adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) target
In the above three, only the service color balance target can be set
to a desired level. 
This adjustment is required in the following cases:
* When the copy color balance/density adjustment (manual adjust-
ment) is executed with SIM 46-21).
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as
improper.
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
CLOSE
RESULT
COMPLETE
RESULT
SIMULATION NO.44-21
TEST
HALF TONE PROCON STANDARD VALUE REGISTER
EXECUTE
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
CLOSE
TOUCH [EXECUTE] THEN EXECUTION START.
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
CLOSE
RESULT
COMPLETE
RESULT
SIMULATION NO.44-26
TEST
HALF TONE DENSITY CORRECT EXECUTION
EXECUTE
CLOSE
RESULT
ERROR:K,C,M,Y
RESULT
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