Sharp MX-M623U / MX-M753U (serv.man10) Service Manual ▷ View online
MX-M753N ADJUSTMENTS AND SETTINGS 5 – 20
5)
After completion of printing, the DSPF adjustment start screen
is displayed.
is displayed.
6)
Load the DSPF adjustment pattern on the DSPF.
7)
Press [EXECUTE] key.
Scanning of the DSPF adjustment pattern selected in the pro-
cedure 2) is started.
When [All] is selected in the procedure 2), load the DSPF
adjustment pattern on the DSPF again and adjust the back
surface in the same procedures.
When the adjustment is completed, the adjustment result is
displayed.
This screen shows the current values along with the previous
values in parentheses.
Scanning of the DSPF adjustment pattern selected in the pro-
cedure 2) is started.
When [All] is selected in the procedure 2), load the DSPF
adjustment pattern on the DSPF again and adjust the back
surface in the same procedures.
When the adjustment is completed, the adjustment result is
displayed.
This screen shows the current values along with the previous
values in parentheses.
* When [REPRINT] key is pressed, the display returns to the
cassette select screen to allow self-print of the DSPF adjust-
ment pattern (front, back) again.
ment pattern (front, back) again.
* When [RESCAN] key is pressed, the DSPF adjustment pat-
tern (front, back) is scanned again.
* When [RETRY] key is pressed, the adjustment value is not
saved in EEPROM and RAM and shifted to the top menu
screen.
screen.
* When [DATA] key is pressed, the data used in execution of
the adjustment are displayed.
8)
Press [OK] key.
The adjustment result becomes valid.
The adjustment result becomes valid.
ADJ 8
Print lead edge image position,
void area adjustment
(Printer mode)
void area adjustment
(Printer mode)
This adjustment is needed in the following situations:
* When the registration roller section is disassembled.
* When the LSU is replaced or removed.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* When the registration roller section is disassembled.
* When the LSU is replaced or removed.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
NOTE: This adjustment is performed by the user to increase the
lead edge void area to greater than the standard value
(3mm) in the printer mode.
(3mm) in the printer mode.
1)
Enter the SIM 50-5 mode.
2)
Select the set item L with the scroll key, and enter the value
corresponding to the paper feed tray with A4 (11" x 8.5") paper
in it.
corresponding to the paper feed tray with A4 (11" x 8.5") paper
in it.
3)
Press [EXECUTE] key.
The adjustment pattern is printed.
The adjustment pattern is printed.
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2.
Item/Display
Content
Setting
range
Default
value
A
DEN-C
Used to adjust the print
lead edge image position.
(PRINTER MODE)
lead edge image position.
(PRINTER MODE)
1 - 99
30
B
DEN-B
Rear edge void area
adjustment
adjustment
1 - 99
30
C
FRONT/REAR
FRONT/REAR void area
adjustment
adjustment
1 - 99
30
D
DENB-MFT
Manual feed rear edge void
area adjustment correction
value
area adjustment correction
value
1 - 99
50
E
DENB-CS1
Tray 1 rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
F
DENB-CS2
Tray 2 rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
G
DENB-CS3
Tray 3 rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
H
DENB-CS4
Tray 4 rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
I
DENB-LCC
LCC rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
J
DENB-ADU
ADU rear edge void area
adjustment correction value
adjustment correction value
1 - 99
50
K
MULTI COUNT
Number of print
1 - 999
1
L
PAPER
MFT
Tray
selection
selection
Manual
paper feed
paper feed
1 - 6
1
2 (CS1)
CS1
Tray 1
2
CS2
Tray 2
3
CS3
Tray 3
4
CS4
Tray 4
5
LCC
LCC
6
M
DUPLEX
YES
Duplex print
selection
selection
Yes
0 - 1
0
1 (NO)
NO
No
1
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2.
MX-M753N ADJUSTMENTS AND SETTINGS 5 – 21
4)
Measure the distance from the paper lead edge the adjustment
pattern to the image lead edge, and check to confirm that it is
in the standard adjustment value range.
Standard adjustment value: 3.0
pattern to the image lead edge, and check to confirm that it is
in the standard adjustment value range.
Standard adjustment value: 3.0
2.0mm
If the above requirement is not met, do the following steps.
5)
Select the adjustment target of the paper feed mode adjust-
ment item DENC with the scroll key.
ment item DENC with the scroll key.
6)
Change the adjustment value.
Enter the adjustment value and press the [OK] key or the
[EXECUTE] key.
When [EXECUTE] key is pressed, the adjustment pattern is
printed.
When the adjustment value is increased, the distance from the
paper lead edge to the image lead edge is increased. When
the adjustment value is decreased, the distance is decreased.
When the set value is changed by 1, the distance is changed
by about 0.1mm.
Enter the adjustment value and press the [OK] key or the
[EXECUTE] key.
When [EXECUTE] key is pressed, the adjustment pattern is
printed.
When the adjustment value is increased, the distance from the
paper lead edge to the image lead edge is increased. When
the adjustment value is decreased, the distance is decreased.
When the set value is changed by 1, the distance is changed
by about 0.1mm.
Repeat the procedures 4) - 6) until the condition of 4) is satisfied.
NOTE: To adjust the void area, change the adjustment values of
items B and C.
ADJ 9
CCD calibration
9-A
CCD gamma adjustment (CCD calibration)
(Document table mode)
(Document table mode)
This adjustment is needed in the following situations:
* When the CCD unit is replaced.
* When a U2 trouble is occurred.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
(1) Note before adjustment
1)
* When the CCD unit is replaced.
* When a U2 trouble is occurred.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
(1) Note before adjustment
1)
Check that the table glass, No. 1, 2, 3 mirrors, and the lens
surface are free from dirt and dust.
(If there is some dust and dirt, wipe and clean with alcohol.)
surface are free from dirt and dust.
(If there is some dust and dirt, wipe and clean with alcohol.)
2)
Check to confirm that the patches in BK1 and BK2 arrays of
the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are
free from dirt and scratches.
If they are dirty, clean them.
If they are scratched or streaked, replace with new one.
the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are
free from dirt and scratches.
If they are dirty, clean them.
If they are scratched or streaked, replace with new one.
(2) Adjustment procedures
1)
1)
Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) to
the reference position on the left rear frame side of the docu-
ment table.
Set the chart so that the lighter density side of the patch is on
the left side.
the reference position on the left rear frame side of the docu-
ment table.
Set the chart so that the lighter density side of the patch is on
the left side.
If the SIT chart is not available, execute SIM 63-5 to set the
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
NOTE: Check to insure that the SIT chart (UKOG-0280FCZZ or
UKOG-0280FCZ1) is in close contact with the document
table.
table.
NOTE: UKOG-0280FCZZ is equivalent to UKOG-0280FCZ1.
2)
2)
Enter the SIM 63-3 mode.
Select [OC] key, and press [EXECUTE] key.
The automatic operation is started. During the adjustment,
[EXECUTE] is highlighted. After completion of the adjustment,
[EXECUTE] returns to the normal display.
Select [OC] key, and press [EXECUTE] key.
The automatic operation is started. During the adjustment,
[EXECUTE] is highlighted. After completion of the adjustment,
[EXECUTE] returns to the normal display.
NOTE: Since the SIT chart (UKOG-0280FCZZ or UKOG-0280FC
Z1) is easily discolored by sunlight (especially ultraviolet
rays) and humidity and temperature, put it in a bag (such
as a dark file) and store in a dark place of low temperature
and low humidity.
rays) and humidity and temperature, put it in a bag (such
as a dark file) and store in a dark place of low temperature
and low humidity.
9-B
CCD gamma adjustment (CCD calibration)
(DSPF mode)
(DSPF mode)
This adjustment is required in the following cases:
* When the DSPF CCD unit is replaced.
* When a U2 trouble occurs.
* When the DSPF control PWB is replaced.
* When the EEPROM on the DSPF control PWB is replaced.
* When the DSPF CCD unit is replaced.
* When a U2 trouble occurs.
* When the DSPF control PWB is replaced.
* When the EEPROM on the DSPF control PWB is replaced.
(1) Note before adjustment
1)
Check to insure that there is no dirt or dust on the DSPF scan-
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
2)
Check to confirm that the patches in BK1 and BK2 arrays of
the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are
free from dirt and scratches.
If they are dirty, clean them.
If they are scratched or streaked, replace with new one.
the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are
free from dirt and scratches.
If they are dirty, clean them.
If they are scratched or streaked, replace with new one.
3.0
2.0mm
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MX-M753N ADJUSTMENTS AND SETTINGS 5 – 22
NOTE:
Since the SIT chart is easily discolored by sunlight (especially
ultraviolet rays) and humidity and temperature, put it in a bag
such as a clear file) and store in a dark place of low tempera-
ture and low humidity.
Since the SIT chart is easily discolored by sunlight (especially
ultraviolet rays) and humidity and temperature, put it in a bag
such as a clear file) and store in a dark place of low tempera-
ture and low humidity.
(2) Adjustment procedures
1)
Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1)
face-down in the DSPF paper feed tray.
face-down in the DSPF paper feed tray.
If the SIT chart is not available, execute SIM 63-5 to set the
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
NOTE: UKOG-0280FCZZ is equivalent to UKOG-0280FCZ1.
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
NOTE: UKOG-0280FCZZ is equivalent to UKOG-0280FCZ1.
2)
Enter the SIM 63-3 mode.
3)
When a color key is selected, the adjustment value of the
selected color is displayed.
* When [B] (Blue), [G] (Green), or [R] (Red) key is selected,
selected color is displayed.
* When [B] (Blue), [G] (Green), or [R] (Red) key is selected,
the selected key is highlighted and the adjustment value of
the selected color is displayed.
the selected color is displayed.
* Only one color key can be selected, and the selected key is
highlighted. In the initial state, [B] is selected.
* If there is a page over [
], an active display is shown and the
page moves up. If there is no page upward, the display
grays out and the operation is invalid.
grays out and the operation is invalid.
If there is a page under [
], an active display is shown and
the page moves down. If there is no page downward, the
display grays out and the operation is invalid.
display grays out and the operation is invalid.
4)
When [DSPF] key is pressed, it is highlighted, and the color
automatic adjustment execution screen is displayed.
automatic adjustment execution screen is displayed.
5)
Press [EXECUTE] key and it is highlighted and the color auto
adjustment is executed.
* When [EXECUTE] key is pressed during the automatic
adjustment is executed.
* When [EXECUTE] key is pressed during the automatic
adjustment, the automatic adjustment is interrupted.
6)
After normal completion, the result of calculation is displayed
in the initial screen.
in the initial screen.
* When an error occurs in execution, the following screen is dis-
played.
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MX-M753N ADJUSTMENTS AND SETTINGS 5 – 23
* When an error occurs in the automatic adjustment, all the error
patch numbers are displayed.
When [RESULT] key is pressed, the display returns to the initial
screen. (The previous value is displayed)
When [RESULT] key is pressed, the display returns to the initial
screen. (The previous value is displayed)
* When the operation is completed normally, "COMPLETE" is dis-
played. When [RESULT] key is pressed, the display returns to
the initial screen. (The calculation result of normal completion is
displayed.)
the initial screen. (The calculation result of normal completion is
displayed.)
9-C
Shading adjustment (Calibration)
(DSPF mode)
(DSPF mode)
This adjustment is required in the following cases:
* When the DSPF CCD unit is replaced.
* When a U2 trouble occurs.
* When the DSPF control PWB is replaced.
* When the EEPROM on the DSPF control PWB is replaced.
* When the DSPF CCD unit is replaced.
* When a U2 trouble occurs.
* When the DSPF control PWB is replaced.
* When the EEPROM on the DSPF control PWB is replaced.
(1) Note before adjustment
1)
Check to insure that there is no dirt or dust on the DSPF scan-
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
2)
Open the DSPF document scanning section, insert the shad-
ing adjustment sheet (UKOG-0333FCZZ), and close the DSPF
document scanning section.
ing adjustment sheet (UKOG-0333FCZZ), and close the DSPF
document scanning section.
* When inserting the shading adjustment sheet, insert it along
the rear edge frame so that the rear edge of the shading
adjustment sheet comes to the root of the actuator.
adjustment sheet comes to the root of the actuator.
3)
Enter the SIM 63-2 mode.
4)
Select [DSPF SHADING].
5)
Press [EXECUTE] key. (The shading adjustment process is
started.)
* The shading adjustment sheet is transported by about
started.)
* The shading adjustment sheet is transported by about
25mm, and shading data are obtained during transport.
* During shading adjustment, "SHADING EXECUTING..." is
displayed.
* When [EXECUTE] key is pressed during shading adjust-
ment, the operation is interrupted.
* When shading adjustment is completed normally, [EXE-
CUTE] key returns to the normal display and "COMPLETE"
is displayed.
is displayed.
<Descriptions of keys>
<Result display>
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Display
Content
OC
SHADING
SHADING
OC analog correction level correction, and shading
correction data making (Document table mode)
correction data making (Document table mode)
DSPF
SHADING
SHADING
Analog correction level correction, and shading correction
data making (DSPF mode)
data making (DSPF mode)
Display
Content
COMPLETE
Normal completion
ERROR
Abnormal completion
INCOMPLETE
Incomplete, interruption
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