Read Sharp MX-6240N / MX-7040N (serv.man24) Service Manual online
MX-7040N 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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