Sharp MX-C380P / MX-C400P / MX-B380P / MX-B382P / MX-B400P (serv.man6) Service Manual ▷ View online
MX-C400P/C380P, MX-B400P/B380P/B382P ADJUSTMENTS 4 – 24
10-B
Manual color balance adjustment - 2
(MX-C400P/C380P)
(MX-C400P/C380P)
1) Enter the SIM 67-25 mode.
2) Select [EXECUTE] button, and press [OK] key.
(A4 or 11" x 8.5" paper is automatically selected.)
The color balance adjustment pattern is printed.
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.
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.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the neutral gray color balance by the color table.
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.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the neutral gray color balance by the color table.
4) Select the color and the adjustment point to be adjusted.
5)
Enter the adjustment value and press OSA shortcut key.
(Select [EXECUTE] button and press [OK] key, and the adjust-
ment value is fixed and the color balance adjustment pattern is
printed.)
The adjustment value is set in the range of 1 - 99.
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 - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the process gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the process gray patch level as far as possible.
(Select [EXECUTE] button and press [OK] key, and the adjust-
ment value is fixed and the color balance adjustment pattern is
printed.)
The adjustment value is set in the range of 1 - 99.
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 - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
Referring to the process gray patches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the process gray patch level as far as possible.
6)
Press [STOP] key to cancel SIM67-25.
7)
Check the adjustment result by using either of the printer color
balance and density check method 1 or 2.
balance and density check method 1 or 2.
10-C
Simple color balance adjustment
(Gray balance adjustment)
(MX-C400P/C380P)
(Gray balance adjustment)
(MX-C400P/C380P)
1)
Enter the SIM 67-21 mode.
2)
Select [EXECUTE] button, and press [OK] key.
(A4 or 11" x 8.5" paper is automatically selected and the sim-
ple color balance adjustment pattern is printed.)
(A4 or 11" x 8.5" paper is automatically selected and the sim-
ple color balance adjustment pattern is printed.)
3)
Find out the patch which is closest to the neutral gray among
the patches of the printed simple color balance adjustment pat-
tern.
the patches of the printed simple color balance adjustment pat-
tern.
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CMY
Blend
Blend
High density
Low density
Patch A of each of Y, M, C, and
BK are not copied.
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.
The patch density is changed gradually.
1) The max. density section is not blurred.
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MX-C400P/C380P, MX-B400P/B380P/B382P ADJUSTMENTS 4 – 25
4) Enter the X and Y coordinate values of the simple color bal-
ance adjustment pattern patch which was found in procedure
3) as the adjustment values.
Enter the adjustment value, and press [OK] key and OSA
shortcut key.
3) as the adjustment values.
Enter the adjustment value, and press [OK] key and OSA
shortcut key.
5) Select [EXECUTE] button on the display, and press [OK] key.
6) "Please push stop key" is displayed, and press [STOP] key to
6) "Please push stop key" is displayed, and press [STOP] key to
cancel SIM67-21.
7) Check the adjustment result by using either of the printer color
balance and density check method 1 or 2.
10-D
Printer density adjustment
(low density part density adjustment)
(Normally unnecessary to adjust)
(MX-C400P/C380P)
(low density part density adjustment)
(Normally unnecessary to adjust)
(MX-C400P/C380P)
This procedure is to adjust image density of low density area in
printer mode.
Adjust to reproduction (not reproduction) setting of the low density
image.
This adjustment is required in the following cases.
* When reproduction of low density image is required. When repro-
printer mode.
Adjust to reproduction (not reproduction) setting of the low density
image.
This adjustment is required in the following cases.
* When reproduction of low density image is required. When repro-
duction of low density image is not required, conversely.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When there is request from the user.
1) Enter the SIM 67-36 mode.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When there is request from the user.
1) Enter the SIM 67-36 mode.
2)
Enter the adjustment value, and press [OK] key and OSA
shortcut key.
In case of increase of the image density on low density part,
increase the adjustment value. For diluting the image density
on low density part, decrease the adjustment value.
shortcut key.
In case of increase of the image density on low density part,
increase the adjustment value. For diluting the image density
on low density part, decrease the adjustment value.
10-E
Printer high density part density correction
setting (high density part tone gap
countermeasure) (Normally unnecessary to
the setting change) (MX-C400P/C380P)
setting (high density part tone gap
countermeasure) (Normally unnecessary to
the setting change) (MX-C400P/C380P)
This procedure is to adjust image density of low density area in
printer mode.
This setting normally not required. When, however, there are case
of following, change the setting.
* When a tone gap occurs on part of high density.
* When there is necessity to increase the density of the part of
printer mode.
This setting normally not required. When, however, there are case
of following, change the setting.
* When a tone gap occurs on part of high density.
* When there is necessity to increase the density of the part of
high density.
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
a. Adjustment procedure
1)
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
a. Adjustment procedure
1)
Enter the SIM 67-34 mode.
2)
Select the item A, B with the scroll key.
3)
Enter the set value, and press [OK] key and OSA shortcut key.
* If a tone gap occurs on part of high density, set 0 to item A
* If a tone gap occurs on part of high density, set 0 to item A
and B
The density of high density part decreases. However, the
tone gap is better.
The density of high density part decreases. However, the
tone gap is better.
* In case of more increase of the density on high density part,
set 1 to item A and B.
The tone gap may occur in high density part.
The tone gap may occur in high density part.
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Display/Item
Content
Setting
range
Default
A
CMY
(0: ENABLE
1:DISABLE)
1:DISABLE)
0
CMY engine maximum
density correction mode
Enable
density correction mode
Enable
0 - 1
0
1
CMY engine maximum
density correction mode
Disable
density correction mode
Disable
B
K
(0:ENABLE
1: DISABLE)
0
K engine maximum
density correction mode
Enable
density correction mode
Enable
0 - 1
1
1
K engine maximum
density correction mode
Disable
density correction mode
Disable
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MX-C400P/C380P, MX-B400P/B380P/B382P ADJUSTMENTS 4 – 26
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1
ADJ 10
Printer density and gradation
adjustment
(MX-B400P/B380P/B382P)
adjustment
(MX-B400P/B380P/B382P)
(1) Note before execution of the printer image quality adjust-
ment
a. Requisite condition before execution of the printer image
quality adjustment
The following adjustment items which affect the image quality must
be properly set.
ment
a. Requisite condition before execution of the printer image
quality adjustment
The following adjustment items which affect the image quality must
be properly set.
(Adjustment items which affect the image quality and must be
checked or adjusted always before execution of the image
quality adjustment.)
checked or adjusted always before execution of the image
quality adjustment.)
(Adjustment items which affect the image quality, but may not
be adjusted frequently. When, however, a trouble occurs, this
items must be checked or adjusted.)
be adjusted frequently. When, however, a trouble occurs, this
items must be checked or adjusted.)
b. Cases when this adjustment is required
In the following cases, this adjustment is required.
1) When maintenance is executed:
2) When repair or maintenance (on consumable parts such as
In the following cases, this adjustment is required.
1) When maintenance is executed:
2) When repair or maintenance (on consumable parts such as
developer, the OPC drum, and the transfer belt) is executed:
(2) Printer density and gradation check
[Note]
Before checking the printer density and gradation, be sure to exe-
cute the following procedures in advance.
* Execute the high density image correction (Process correction)
[Note]
Before checking the printer density and gradation, be sure to exe-
cute the following procedures in advance.
* Execute the high density image correction (Process correction)
forcibly. (SIM 44-6)
* The halftone image correction is forcibly executed. (SIM 44-26)
* For the density and gradation check and adjustment, use the rec-
* For the density and gradation check and adjustment, use the rec-
ommended paper.
If the other kind of paper is used, the proper image quality (den-
sity and gradation) may not be obtained.
If the other kind of paper is used, the proper image quality (den-
sity and gradation) may not be obtained.
(Method 1)
Execute SIM 64-5 to print the print test pattern.
The print density of the patch must be changed gradually from the
lighter level to the darker level. The density changing direction must
not be reversed.
At that time, set the SIM64-5 set values to the default values.
Execute SIM 64-5 to print the print test pattern.
The print density of the patch must be changed gradually from the
lighter level to the darker level. The density changing direction must
not be reversed.
At that time, set the SIM64-5 set values to the default values.
(Method 2)
Use SIM 67-25 to print the density and gradation manual adjust-
ment check sheet, and check the black patch to check to confirm
that the density and gradation are proper or not.
Use SIM 67-25 to print the density and gradation manual adjust-
ment check sheet, and check the black patch to check to confirm
that the density and gradation are proper or not.
The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
Patch B may not be copied.
Patch A must not be copied.
to the darker level. The density changing direction must not be
reversed.
Patch B may not be copied.
Patch A must not be copied.
(3) Density and gradation adjustment mode
This machine is provided with the following density and gradation
adjustment modes. Use either one of them to adjust.
a. Manual density and gradation adjustment - 1
This adjustment is executed with SIM67-22.
Use this simulation to print the Testpage, and compare it with the
reference density of BLACK on the color chart (UKOG-0331FCZZ)
to find the patch whose density is the closest to the reference den-
sity. Then enter the number of that patch.
Execute the above procedures for each of the Low Density area,
the Middle Density area, and the High Density area.
b. Manual density and gradation adjustment - 2
This adjustment is executed with SIM67-25.
When a satisfactory result cannot be obtained with the manual den-
sity and gradation adjustment - 1 or when a request for changing
(customizing) the density and gradation is made by the user, exe-
cute this adjustment.
The adjustment value of 17-point density level is entered for this
adjustment.
This machine is provided with the following density and gradation
adjustment modes. Use either one of them to adjust.
a. Manual density and gradation adjustment - 1
This adjustment is executed with SIM67-22.
Use this simulation to print the Testpage, and compare it with the
reference density of BLACK on the color chart (UKOG-0331FCZZ)
to find the patch whose density is the closest to the reference den-
sity. Then enter the number of that patch.
Execute the above procedures for each of the Low Density area,
the Middle Density area, and the High Density area.
b. Manual density and gradation adjustment - 2
This adjustment is executed with SIM67-25.
When a satisfactory result cannot be obtained with the manual den-
sity and gradation adjustment - 1 or when a request for changing
(customizing) the density and gradation is made by the user, exe-
cute this adjustment.
The adjustment value of 17-point density level is entered for this
adjustment.
10-A
Manual density and gradation
adjustment - 1 (MX-B400P/B380P/B382P)
adjustment - 1 (MX-B400P/B380P/B382P)
1)
Enter the SIM 67-22 mode.
Adjustment Item List
Simulation
ADJ 2
Image density
sensor
adjustment
sensor
adjustment
2B
Black image density sensor
adjustment
adjustment
44-2
ADJ 3
Image skew adjustment (LSU unit)
64-2
Adjustment item list
Simulation
ADJ 1
Adjusting high
voltage values
voltage values
1A
Adjust the main charger grid
voltage
voltage
8-2
1B
Adjust the developing bias
voltage
voltage
8-1
1C
Transfer voltage adjustment
8-6
1
1
PRINTER CALIBRATION
Q (Max)
A
B
C D
E
F
G H
I
J
K
L
M N O P
High density
Low density
Patch A or B slightly printed
The max density patch is not blurred
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
1
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MX-C400P/C380P, MX-B400P/B380P/B382P ADJUSTMENTS 4 – 27
: ’11/Mar/15
1
2) Select [EXECUTE] button, and press [OK] key.
(A4 or 11" x 8.5" paper is automatically selected and the color
balance adjustment pattern is printed.)
balance adjustment pattern is printed.)
3) Check the printed density and gradation adjustment pattern to
find out the patch which is closest to the patch reference den-
sity of the color chart (UKOG-0331FCZZ) in the Low Density
area, the Mid Density area, and the High Density area.
sity of the color chart (UKOG-0331FCZZ) in the Low Density
area, the Mid Density area, and the High Density area.
4) Enter the adjust number of the density and gradation adjust-
ment pattern patch which was found in procedure 3) as the
adjustment value.
Select the adjustment density area (LOW, MID, HIGH), and
enter the adjustment number as the adjustment value.
• Adjustment density area
adjustment value.
Select the adjustment density area (LOW, MID, HIGH), and
enter the adjustment number as the adjustment value.
• Adjustment density area
LOW
MID
HIGH
MID
HIGH
5) Select [EXECUTE] button on the display, and press [OK] key.
6) After completion of registration of the adjustment data, "Please
6) After completion of registration of the adjustment data, "Please
push stop key" is displayed. Press [STOP] key to cancel
SIM67-22.
SIM67-22.
7) Check the adjustment result by using either of the printer den-
sity and gradation check method 1 or 2.
10-B
Manual density and gradation
adjustment - 2 (MX-B400P/B380P/B382P)
adjustment - 2 (MX-B400P/B380P/B382P)
1)
Enter the SIM 67-25 mode.
2)
Select [EXECUTE] button, and press [OK] key.
(A4 or 11" x 8.5" paper is automatically selected.)
The density and gradation adjustment pattern is printed.
(A4 or 11" x 8.5" paper is automatically selected.)
The density and gradation adjustment pattern is printed.
3)
Check that the following specification is satisfied or the density
and the gradation is satisfactory.
If not, execute the following procedures.
and the gradation 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.
Patch B may not be copied.
Patch A must not be copied.
When, however, the density and gradation are adjusted
according to a request from the user, there is no need to set to
the standard color balance stated above.
level to the darker level. The density changing direction must
not be reversed.
Patch B may not be copied.
Patch A must not be copied.
When, however, the density and gradation are adjusted
according to a request from the user, there is no need to set to
the standard color balance stated above.
4)
Select the adjustment point to be adjusted.
5)
Enter the adjustment value and press OSA shortcut key.
(Select [EXECUTE] button and press [OK] key, and the adjust-
ment value is fixed and the density and gradation adjustment
pattern is printed.)
The adjustment value is set in the range of 1 - 99.
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 - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
(Select [EXECUTE] button and press [OK] key, and the adjust-
ment value is fixed and the density and gradation adjustment
pattern is printed.)
The adjustment value is set in the range of 1 - 99.
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 - Q (MAX) to a same level collectively.
Then, adjust each patch density individually. This is an efficient
way of adjustment.
6)
Press [STOP] key to cancel SIM67-25.
7)
Check the adjustment result by using either of the printer den-
sity and gradation check method 1 or 2.
sity and gradation check method 1 or 2.
Gray Balance Testpage
Low Density
High Density
Mid Density
Bk
Bk
Bk
1
2
4
3
6
5
8
7
11
9
10
15
14
13
12
1
2
4
3
6
5
8
7
11
9
10
15
14
13
12
Adjustment number
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PRINTER CALIBRATION
PRINTER CALIBRATION
Q (Max)
A
B
C D
E
F
G H
I
J
K
L
M N O P
High density
Low density
Patch A or B slightly printed
The max density patch is not blurred
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
Click on the first or last page to see other MX-C380P / MX-C400P / MX-B380P / MX-B382P / MX-B400P (serv.man6) service manuals if exist.