Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ▷ View online
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 10
ADJ 3
Print/scan image automatic
magnification ratio adjustment,
Print/scan image automatic
position adjustment
(Automatic adjustment)
magnification ratio adjustment,
Print/scan image automatic
position adjustment
(Automatic adjustment)
The following adjustment items can be executed automatically with
SIM50-28. (All paper feed trays including the option desk/LCC)
SIM50-28. (All paper feed trays including the option desk/LCC)
* ADJ 15
Print image position, image magnification ratio, void area, off-
center adjustment (Print engine) (Manual adjustment)
center adjustment (Print engine) (Manual adjustment)
* ADJ 16
Scan image magnification ratio adjustment (Manual adjustment)
* ADJ 17
Scan image off-center adjustment (Manual adjustment)
* ADJ 18
Copy image position and image loss adjustment
(Manual adjustment)
(Manual adjustment)
Menu in SIM50-28 mode
3-A
Print image automatic magnification ratio
adjustment (Main scanning direction)
(Print engine)
adjustment (Main scanning direction)
(Print engine)
1)
Enter the SIM50-28 mode.
2)
Select [BK-MAG ADJ] with the key.
3)
Select the paper feed tray with paper in it with the key.
(Any paper size will do.)
(Any paper size will do.)
4)
Press [EXECUTE] key.
The adjustment pattern is printed out.
5)
Set the adjustment pattern on the document table.
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
6)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Print image main scanning direction image magnification
ratio.
7)
Press [OK] key.
The adjustment result becomes valid.
Display/Item
Content
OC ADJ
Image loss off-center sub scanning direction image
magnification ratio adjustment (Document table mode)
magnification ratio adjustment (Document table mode)
BK-MAG ADJ
Main scanning direction image magnification ratio
adjustment
adjustment
SPF ADJ
Image loss off-center sub scanning direction image
magnification ratio adjustment (DSPF mode)
magnification ratio adjustment (DSPF mode)
SETUP/
PRINT ADJ
PRINT ADJ
Print lead edge adjustment, image off-center (each paper
feed tray, duplex mode) adjustment
feed tray, duplex mode) adjustment
RESULT
Adjustment result display
DATA
Display of data used when an adjustment is executed
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 11
3-B
Print image automatic position adjustment
(Main scanning direction, sub scanning
direction) (Print engine)
(Each paper feed tray)
(Main scanning direction, sub scanning
direction) (Print engine)
(Each paper feed tray)
1)
Enter the SIM50-28 mode.
2)
Select [SETUP/PRINT ADJ] with the key.
3)
Select [ALL] with the key.
NOTE:
By pressing [LEAD] or [OFFSET] key, the following items can
be executed individually.
be executed individually.
* [LEAD]: Print image lead edge image position adjustment
* [OFFSET]: Print image off-center adjustment
When [ALL] is selected, both of the above two items are
executed simultaneously.
executed simultaneously.
4)
Select a paper feed tray to be adjusted.
5)
Press [EXECUTE] key.
The adjustment pattern is printed out.
6)
Set the adjustment pattern on the document table.
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
7)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Print image lead edge image position adjustment
* Print image off-center adjustment
8)
Press [OK] key.
The adjustment result becomes valid.
Perform procedures 4) to 7) for each paper feed tray.
3-C
Scan image automatic magnification ratio
adjustment (Sub scanning direction)
(Scanner), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (Scanner)
adjustment (Sub scanning direction)
(Scanner), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (Scanner)
1)
Enter the SIM50-28 mode.
2)
Select [OC ADJ] with the key.
3)
Select the paper feed tray with paper in it with the key.
(Any paper size will do.)
(Any paper size will do.)
4)
Press [EXECUTE] key.
The adjustment pattern is printed out.
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 12
5)
Set the adjustment pattern on the document table. (Either
direction will do.)
direction will do.)
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
6)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Copy lead edge image reference position adjustment, image
off-center, sub scanning direction image magnification ratio
automatic adjustment
automatic adjustment
7)
Press [OK] key.
The adjustment result becomes valid.
3-D
Scan image automatic magnification ratio
adjustment (Sub scanning direction)
(DSPF), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (DSPF)
adjustment (Sub scanning direction)
(DSPF), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (DSPF)
This adjustment must be performed in the following cases:
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
This adjustment is used to adjust the DSPF (front/back) document
lead edge, off-center, sub operation magnification ratio.
lead edge, off-center, sub operation magnification ratio.
1)
Enter the simulation mode 50-28 to select [SPF ADJ].
2)
Select an adjustment item (front, back, both).
<List of adjustment items>
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Menu display item
Content
SIDE1
DSPF adjustment front surface
SIDE2
DSPF adjustment back surface
ALL
DSPF adjustment front/back surface
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 13
3)
The display shows the tray select screen for printing the DSPF
adjustment pattern. Select a tray for DSPF adjustment printing.
adjustment pattern. Select a tray for DSPF adjustment printing.
4)
Self-print of the DSPF adjustment pattern is performed.
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, and scanning of the DSPF adjustment
pattern selected in step 2) is started.
pattern selected in step 2) is started.
8)
When [ALL] is selected, load the DSPF adjustment pattern on
the DSPF again, and perform the adjustment of the back sur-
face in the similar procedures.
the DSPF again, and perform the adjustment of the back sur-
face in the similar procedures.
9)
The adjustment result screen is displayed.
The value of this time is displayed, and the value of the last
time is displayed in the parenthesis ( ).
time is displayed in the parenthesis ( ).
* When [REPRINT] button is pressed, the display returns to
the cassette select screen to allow self-print of the DSPF
adjustment pattern (front, back) again.
adjustment pattern (front, back) again.
* When [RESCAN] button is pressed, the DSPF adjustment
pattern (front, back) is scanned again.
* When [RETRY] button is pressed, the adjustment value is
not saved in EEPROM and RAM and shifted to the top menu
screen.
screen.
* When [DATA] button is pressed, the data used in execution
of the adjustment are displayed.
10) When [OK] button is pressed, the adjustment value is saved in
EEPROM and RAM and the display is shifted to the end
screen.
screen.
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