Sharp MX-M905 (serv.man2) Service Manual ▷ View online
MX-M905 ADJUSTMENTS 5 – 61
11-D
(1)
Monochrome copy density adjustment
(for each monochrome copy mode)
(separately for the low-density area and the
high-density area)
(No need to adjust normally)
Monochrome copy density adjustment
(for each monochrome copy mode)
(separately for the low-density area and the
high-density area)
(No need to adjust normally)
The density is adjusted in each copy mode individually.
This adjustment must be performed in the following cases:
* When there is necessity to change the copy density of the low
density and high density part at each copy density individually.
* When there is necessity to change the density gradient of the
copy by each the copy mode individually.
* When there is necessity to change all copy density by each the
copy mode individually.
* When there is request from the user.
1)
Enter the SIM 46-2 mode.
2)
Select the copy mode to be adjusted with the scroll key.
3)
Enter the adjustment value with 10-key and press [OK] key.
When adjusting the copy density on the low density part, select
"LOW" mode and change the adjustment value. When adjust-
ing the copy density on the high density part, select "HIGH"
mode and change the adjustment value.
"LOW" mode and change the adjustment value. When adjust-
ing the copy density on the high density part, select "HIGH"
mode and change the adjustment value.
When the adjustment value is increased, the copy density is
increased. When the adjustment value is decreased, the copy
density is decreased.
increased. When the adjustment value is decreased, the copy
density is decreased.
4)
Make a copy and check the adjustment result.
Switch the adjustment simulation mode and the normal copy
mode alternately, and adjust and check the adjustment result.
mode alternately, and adjust and check the adjustment result.
Repeat switching the adjustment simulation mode and the nor-
mal copy mode and changing the adjustment value and check-
ing the copy until a satisfactory result is obtained.
mal copy mode and changing the adjustment value and check-
ing the copy until a satisfactory result is obtained.
11-D
(2)
Copy gray balance, gamma adjustment
(No need to adjust normally)
Copy gray balance, gamma adjustment
(No need to adjust normally)
This adjustment is used to execute the gray balance adjustment for
each density level.
each density level.
This adjustment must be performed in the following cases:
* When there is necessity to change the gray balance and gamma
by each the copy mode individually.
* When there is request from the user.
1)
Enter the SIM 46-10 mode.
2)
Select the copy mode to be adjusted with the mode key.
3)
Select the density level (point) to be adjusted with the scroll
key.
key.
4)
Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, the density is
increased. When the adjustment value is decreased, the den-
sity is decreased.
increased. When the adjustment value is decreased, the den-
sity is decreased.
When the arrow key is pressed, the densities are collectively
adjusted.
adjusted.
That is, all the density levels (points) from the low density point
to the high density point can be adjusted collectively.
to the high density point can be adjusted collectively.
When [EXECUTE] key is pressed, the adjustment pattern is
printed out.
printed out.
This adjustment pattern can be used to check the gray balance
and the density for each density level (point).
and the density for each density level (point).
5)
Make a copy and check the adjustment result.
Switch the adjustment simulation mode and the normal copy
mode alternately, and adjust and check the adjustment result.
mode alternately, and adjust and check the adjustment result.
Repeat switching the adjustment simulation mode and the nor-
mal copy mode and changing the adjustment value and check-
ing the copy until a satisfactory result is obtained.
mal copy mode and changing the adjustment value and check-
ing the copy until a satisfactory result is obtained.
Display/Item
Content
Setting
range
Default
A
AUTO1
Auto 1
LOW
1 - 99
50
HIGH
1 - 99
50
B
AUTO2
Auto 2
LOW
1 - 99
50
HIGH
1 - 99
50
C
AUTO3
Auto 3
LOW
1 - 99
50
HIGH
1 - 99
50
D
TEXT
Text
LOW
1 - 99
50
HIGH
1 - 99
50
E
TEXT/PRINTED
PHOTO
PHOTO
Text/Printed
Photo
Photo
LOW
1 - 99
50
HIGH
1 - 99
50
F
TEXT/PHOTO
Text/Photograph
LOW
1 - 99
50
HIGH
1 - 99
50
G
PRINTED PHOTO
Printed Photo
LOW
1 - 99
50
HIGH
1 - 99
50
H
PHOTOGRAPH
Photograph
LOW
1 - 99
50
HIGH
1 - 99
50
I
MAP
Map
LOW
1 - 99
50
HIGH
1 - 99
50
J
AUTO1
(COPY TO COPY)
(COPY TO COPY)
Auto1
(Copy document)
(Copy document)
LOW
1 - 99
50
HIGH
1 - 99
50
K
AUTO2
(COPY TO COPY)
(COPY TO COPY)
Auto2
(copy to copy)
(copy to copy)
LOW
1 - 99
50
HIGH
1 - 99
50
L
AUTO3
(COPY TO COPY)
(COPY TO COPY)
Auto3
(Copy document)
(Copy document)
LOW
1 - 99
50
HIGH
1 - 99
50
M
TEXT
(COPY TO COPY)
(COPY TO COPY)
Text (Copy
document)
document)
LOW
1 - 99
50
HIGH
1 - 99
50
N
TEXT/PRINTED
PHOTO
(COPY TO COPY)
PHOTO
(COPY TO COPY)
Text/Printed
Photo (Copy
document)
Photo (Copy
document)
LOW
1 - 99
50
HIGH
1 - 99
50
O
PRINTED PHOTO
(COPY TO COPY)
(COPY TO COPY)
Printed Photo
(Copy document)
(Copy document)
LOW
1 - 99
50
HIGH
1 - 99
50
P
LIGHT
Light document
LOW
1 - 99
50
HIGH
1 - 99
50
Item/Display
Density level
(Point)
Adjustment
value range
value range
Default
A
POINT1
Point 1
1 - 999
500
B
POINT2
Point 2
1 - 999
500
C
POINT3
Point 3
1 - 999
500
D
POINT4
Point 4
1 - 999
500
E
POINT5
Point 5
1 - 999
500
F
POINT6
Point 6
1 - 999
500
G
POINT7
Point 7
1 - 999
500
H
POINT8
Point 8
1 - 999
500
I
POINT9
Point 9
1 - 999
500
J
POINT10
Point 10
1 - 999
500
K
POINT11
Point 11
1 - 999
500
L
POINT12
Point 12
1 - 999
500
M
POINT13
Point 13
1 - 999
500
N
POINT14
Point 14
1 - 999
500
O
POINT15
Point 15
1 - 999
500
P
POINT16
Point 16
1 - 999
500
Q
POINT17
Point 17
1 - 999
500
MX-M905 ADJUSTMENTS 5 – 62
11-D
(3)
Monochrome copy density, gamma
adjustment (for each monochrome copy
mode) (No need to adjust normally)
Monochrome copy density, gamma
adjustment (for each monochrome copy
mode) (No need to adjust normally)
This adjustment is used to execute the density adjustment for each
density level in each monochrome copy mode.
density level in each monochrome copy mode.
This adjustment must be performed in the following cases:
* When it is required to change the gamma in each copy mode.
* When there is request from the user.
1)
Enter the SIM 46-16 mode.
2)
Select the density level (point) to be adjusted with the scroll
key.
key.
3)
Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, the density is
increased. When the adjustment value is decreased, the den-
sity is decreased.
increased. When the adjustment value is decreased, the den-
sity is decreased.
When the arrow key is pressed, the densities are collectively
adjusted.
adjusted.
That is, all the density levels (points) from the low density point
to the high density point can be adjusted collectively.
to the high density point can be adjusted collectively.
When [EXECUTE] key is pressed, the adjustment pattern is
printed out.
printed out.
The density at each density level (point) can be checked by
referring to this printed adjustment pattern. However, it is more
practical to make a copy and check it.
referring to this printed adjustment pattern. However, it is more
practical to make a copy and check it.
This adjustment pattern can be used to check the gray balance
and the density for each density level (point).
and the density for each density level (point).
4)
Make a copy and check the adjustment result.
Switch the adjustment simulation mode and the normal copy
mode alternately, and adjust and check the adjustment result.
mode alternately, and adjust and check the adjustment result.
Repeat switching the adjustment simulation mode and the normal
copy mode and changing the adjustment value and checking the
copy until a satisfactory result is obtained.
copy mode and changing the adjustment value and checking the
copy until a satisfactory result is obtained.
11-D
(4)
Automatic monochrome (Copy/Scan/FAX)
mode document density scanning
operation (exposure operation) conditions
setting (Normally no need to set)
Automatic monochrome (Copy/Scan/FAX)
mode document density scanning
operation (exposure operation) conditions
setting (Normally no need to set)
Use for setting the condition of read operation (Exposure) for docu-
ment density in monochrome auto copy mode.
ment density in monochrome auto copy mode.
When a copy with correct density is not obtained by type of docu-
ment, change the setting.
ment, change the setting.
This setting is required in the following cases.
* When a proper density copy is not obtained in the monochrome
automatic copy mode.
* When a document with images near its lead edge is copied.
* When a document with colored background is copied.
1)
Enter the SIM 46-19 mode.
2)
Set REALTIME, STOP or PRE-SCAN to adjustment item AE
STOP COPY. For contents of each setting item, refer to below.
Change the setting value of "AE WIDTH" item to "FULL" or
"PART", in some cases.
STOP COPY. For contents of each setting item, refer to below.
Change the setting value of "AE WIDTH" item to "FULL" or
"PART", in some cases.
NOTE:
MODE1: High gamma (Improves the image contrast)
MODE2: Normal gamma
MODE3: Normal gamma (Improve the back copying)
STOP:
Reads the density of 3 - 7 mm area from leading edge of document,
decides the output image density according to the density of that
part. (The output image density is constant at whole area.)
Reads the density of 3 - 7 mm area from leading edge of document,
decides the output image density according to the density of that
part. (The output image density is constant at whole area.)
REALTIME:
Reads the density of width of the document one by one, decides
the output image density according to the density of each part of
the document. (The output image density may be not constant at
whole area.)
Reads the density of width of the document one by one, decides
the output image density according to the density of each part of
the document. (The output image density may be not constant at
whole area.)
PRESCAN:
Once the densities on the document surface are scanned, the out-
put image density is determined according to the average of the
scanned densities. (The output image density is even for all the
surface.)
Once the densities on the document surface are scanned, the out-
put image density is determined according to the average of the
scanned densities. (The output image density is even for all the
surface.)
AE WIDTH FULL:
Document density reading area in monochrome auto mode is 3 - 7
mm (leading edge of document) x Document width. No relationship
to PRESCAN MODE
Document density reading area in monochrome auto mode is 3 - 7
mm (leading edge of document) x Document width. No relationship
to PRESCAN MODE
AE WIDTH PART:
Document density reading area in monochrome auto mode is 3 - 7
mm (leading edge of document) x 100 mm (width). No relationship
to PRESCAN MODE
Document density reading area in monochrome auto mode is 3 - 7
mm (leading edge of document) x 100 mm (width). No relationship
to PRESCAN MODE
Item/Display
Density level
(Point)
Adjustment
value range
value range
Default
A
POINT1
Point 1
1 - 999
500
B
POINT2
Point 2
1 - 999
500
C
POINT3
Point 3
1 - 999
500
D
POINT4
Point 4
1 - 999
500
E
POINT5
Point 5
1 - 999
500
F
POINT6
Point 6
1 - 999
500
G
POINT7
Point 7
1 - 999
500
H
POINT8
Point 8
1 - 999
500
I
POINT9
Point 9
1 - 999
500
J
POINT10
Point 10
1 - 999
500
K
POINT11
Point 11
1 - 999
500
L
POINT12
Point 12
1 - 999
500
M
POINT13
Point 13
1 - 999
500
N
POINT14
Point 14
1 - 999
500
O
POINT15
Point 15
1 - 999
500
P
POINT16
Point 16
1 - 999
500
Q
POINT17
Point 17
1 - 999
500
Display/Item
Content
Set value
Default
AE_MODE
Auto exposure mode
MODE1,
MODE2, MODE3
MODE2, MODE3
MODE2
AE_STOP_COPY
Auto B/W exposure
Stop (for copy)
Stop (for copy)
REALTIME/
STOP/PRESCAN
STOP/PRESCAN
PRESCA
N
N
AE_STOP_FAX
Auto B/W exposure
Stop (for FAX)
Stop (for FAX)
ON/OFF
ON
AE_STOP_SCAN
Auto B/W exposure
Stop (for scanner)
Stop (for scanner)
REALTIME/
STOP/PRESCAN
STOP/PRESCAN
STOP
AE_FILTER
Auto exposure filter
setting
setting
SOFT
NORMAL
NORMAL
SHARP
AE_WIDTH
AE exposure width
FULL
FULL
PART
MX-M905 ADJUSTMENTS 5 – 63
Operation in monochrome auto copy mode:
When the density of the document of the read area is light, output
image density is increased by control. When the density of the doc-
ument of the read area is dark, output image density is decreased
by control.
When the density of the document of the read area is light, output
image density is increased by control. When the density of the doc-
ument of the read area is dark, output image density is decreased
by control.
11-D
(5)
Document low density image density
reproduction adjustment in the automatic
monochrome (Copy/Scan/FAX) mode
(No need to adjust normally) (Background
density adjustment in the scanning section)
Document low density image density
reproduction adjustment in the automatic
monochrome (Copy/Scan/FAX) mode
(No need to adjust normally) (Background
density adjustment in the scanning section)
Use for the reproducibility adjustment of document background
density in monochrome auto copy mode.
density in monochrome auto copy mode.
This adjustment is required in the following cases.
* When there is a desire not to reproduce the background of the
document. When there is a desire to reproduce the low density
image of the document.
image of the document.
* When there is request from the user.
1)
Enter the SIM 46-32 mode.
2)
Select the adjustment mode with the scroll key.
3)
Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, reproducibility of the
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the back-
ground and the low density image is decreased.
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the back-
ground and the low density image is decreased.
11-D
(6)
Copy/Scan low density image density
adjustment (for each mode)
(No need to adjust normally)
Copy/Scan low density image density
adjustment (for each mode)
(No need to adjust normally)
This adjustment is used to adjust the image density in the low den-
sity area in the copy/scanner mode.
sity area in the copy/scanner mode.
This adjustment is required in the following cases.
* When there is a desire not to reproduce the background of the
document. When there is a desire to reproduce the low density
image of the document.
image of the document.
* When there is request from the user.
1)
Enter the SIM 46-63 mode.
2)
Select the copy mode to be adjusted with the scroll key.
3 to 7mm
3 to 7mm
100mm
100mm
3 to 7mm
Document table/DSPF mode
Document table mode
DSPF mode
AE WIDTH = FULL
AE WIDTH = PART
AE WIDTH = PART
Document density detection area
Item/Display
Content
Setting
range
Default
value
A
COPY: OC
Copy mode (for OC)
1 - 250
196
B
COPY: DSPF
(SIDE1)
(SIDE1)
Copy mode
(for DSPF front surface)
(for DSPF front surface)
1 - 250
196
C
COPY: DSPF
(SIDE2)
(SIDE2)
Copy mode
(for DSPF back surface)
(for DSPF back surface)
1 - 250
196
D
SCAN: OC
Scanner mode (for OC)
1 - 250
196
E
SCAN: DSPF
(SIDE1)
(SIDE1)
Scanner mode
(for DSPF front surface)
(for DSPF front surface)
1 - 250
196
F
SCAN: DSPF
(SIDE2)
(SIDE2)
Scanner mode
(for DSPF back surface)
(for DSPF back surface)
1 - 250
196
G
FAX: OC
FAX mode (for OC)
1 - 250
196
H
FAX: DSPF
(SIDE1)
(SIDE1)
FAX mode
(for DSPF front surface)
(for DSPF front surface)
1 - 250
196
I
FAX: DSPF
(SIDE2)
(SIDE2)
FAX mode
(for DSPF back surface)
(for DSPF back surface)
1 - 250
196
Display/Item
Content
Set
value
Default
A
COLOR PUSH:TEXT/
PRINTED PHOTO
PRINTED PHOTO
Text print
(color PUSH)
(color PUSH)
1 - 9
3
B
COLOR PUSH:TEXT
Text (color PUSH)
1 - 9
3
C
COLOR PUSH:
PRINTED PHOTO
PRINTED PHOTO
Printed photo
(color PUSH)
(color PUSH)
1 - 9
5
D
COLOR PUSH:
PHOTOGRAPH
PHOTOGRAPH
Photograph
(color PUSH)
(color PUSH)
1 - 9
5
E
COLOR PUSH:
TEXT/PHOTO
TEXT/PHOTO
Text/Photograph
(color PUSH)
(color PUSH)
1 - 9
3
F
COLOR PUSH: MAP
Map (color PUSH)
1 - 9
5
MX-M905 ADJUSTMENTS 5 – 64
3)
Enter the adjustment value with 10-key and press [OK] key.
When the adjustment value is increased, reproducibility of the
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the back-
ground and the low density image is decreased.
background and the low density image is increased. When the
adjustment value is decreased, reproducibility of the back-
ground and the low density image is decreased.
11-D
(7)
Monochrome (Copy/Scan/FAX) mode color
document reproduction adjustment
(No need to adjust normally)
Monochrome (Copy/Scan/FAX) mode color
document reproduction adjustment
(No need to adjust normally)
Use to adjust the reproducibility for the red image and the yellow
image when printing color document that included the red/yellow
image in monochrome copy mode.
image when printing color document that included the red/yellow
image in monochrome copy mode.
This adjustment is required in the following cases.
* When there is desire to change reproducibility of yellow/red
image in case of making a color copy of the color document in
monochrome copy mode.
monochrome copy mode.
* When there is request from the user.
1)
Enter the SIM 46-37 mode.
2)
Select the mode to be adjusted with the scroll key.
3)
Enter the adjustment value with 10-key.
When the adjustment value of adjustment item A is increased,
copy density of red image is decreased. When the adjustment
value is decreased, copy density of red image is increased.
copy density of red image is decreased. When the adjustment
value is decreased, copy density of red image is increased.
When the adjustment value of adjustment item B is increased,
copy density of yellow image is decreased. When the adjust-
ment value is decreased, copy density of yellow image is
increased.
copy density of yellow image is decreased. When the adjust-
ment value is decreased, copy density of yellow image is
increased.
4)
Press [OK] key.
5)
Make a copy in monochrome text/printed photo copy mode
(manual), check the copy.
(manual), check the copy.
If a satisfactory result is not obtained, return to the SIM 46-37
mode and change the adjustment value.
mode and change the adjustment value.
Repeat the above procedures until a satisfactory result is
obtained.
obtained.
11-D
(8)
Monochrome copy/color scan mode
sharpness adjustment
(No need to adjust normally)
Monochrome copy/color scan mode
sharpness adjustment
(No need to adjust normally)
Use for sharpness adjustment of the high density image in mono-
chrome copy/color scan mode.
chrome copy/color scan mode.
This adjustment changes smoothness (asperity) in the image
shade part.
shade part.
This adjustment is required in the following cases.
* When changing the sharpness of copy image in copy mode.
(obtain crispy image) (decreases moire)
* When there is desire to improving smoothness in the image
shade part (for decrease of asperity)
* To make the black background and the dark area darker.
* To reproduce the gradation change in the dark area.
* When there is request from the user.
1)
Enter the SIM 46-60 mode.
2)
Select the mode to be adjusted with the scroll key.
3)
Input numeric value corresponding to sharpness level (filter
process mode).
process mode).
• Adjustment item A:
When selecting AUTO, filter is selected according to dot pat-
tern state automatically and adjusts sharpness.
tern state automatically and adjusts sharpness.
Input small numeric value to obtain crispy image. Input large
numeric value to decrease moire.
numeric value to decrease moire.
• Adjustment item B:
Select HIGH to obtain clear images. Select SOFT to reduce
moire.
moire.
• Adjustment item C - J:
When setting ON, smoothness in the image shade part
improves by applying soft filter. (asperity decreases)
improves by applying soft filter. (asperity decreases)
4)
Press [OK] key.
5)
Make a copy and check the copy image.
If a satisfactory result is not obtained, return to the SIM 46-60 mode
and change the adjustment value.
and change the adjustment value.
Repeat the above procedures until a satisfactory result is obtained.
Item/Display
Content
Setting
range
Default
value
A
R-Ratio
Gray making setting (R)
0 - 1000
153
B
G-Ratio
Gray making setting (G)
0 - 1000
742
C
R-Ratio RIP
Print gray making setting (R)
0 - 1000
299
D
G-Ratio RIP
Print gray making setting (G)
0 - 1000
587
B-Ratio
Gray making setting (B) (1000-R-Ratio - G-Ratio)
B-Ratio RIP
Print gray making setting (B)
(1000-R-Ratio RIP - G-Ratio RIP)
(1000-R-Ratio RIP - G-Ratio RIP)
Item/Display
Content
Setting
range
Default
value
A
COPY
AUTO
FILTER
LEVEL
AUTO
FILTER
LEVEL
SOFT
Sharpness
(filter)
adjustment
for the auto
copy mode
(Text, Text/
Printed
Photo/ Text,
Text/Printed
Photo image)
(filter)
adjustment
for the auto
copy mode
(Text, Text/
Printed
Photo/ Text,
Text/Printed
Photo image)
SOFT
1 - 3
1
2
CENTER
CENTER
2
HIGH
HIGH
3
B
CPY
PUSH
AUTO
FILTER
LEVEL
PUSH
AUTO
FILTER
LEVEL
SOFT
Sharpness:
The
sharpness is
specified
when the
document
mode is
judged as A5
or A6 by the
auto mode of
PUSH.
The
sharpness is
specified
when the
document
mode is
judged as A5
or A6 by the
auto mode of
PUSH.
SOFT
1 - 3
1
2
(CEN-
TER)
CENTER
CENTER
2
HIGH
HIGH
3
C
B/W
COPY
COPY
OFF
Filter
mixture,
Register
select
pattern,
Monochrome
copy
mixture,
Register
select
pattern,
Monochrome
copy
OFF
0 - 1
0
1(ON)
ON
ON
1
D
COLOR
PUSH:
RGB
PUSH:
RGB
OFF
Filter
mixture,
Register
select
pattern,
Color push
mixture,
Register
select
pattern,
Color push
OFF
0 - 1
0
1(ON)
ON
ON
1
E
B/W
PUSH
PUSH
OFF
Filter
mixture,
Register
select
pattern,
Monochrome
push
mixture,
Register
select
pattern,
Monochrome
push
OFF
0 - 1
0
1(ON)
ON
ON
1
F
B/W
PRINT
OFF
Filter
mixture,
Register
select
pattern,
Monochrome
print
mixture,
Register
select
pattern,
Monochrome
OFF
0 - 1
0
0(OFF)
ON
ON
1
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