MX-M364N, MX-565N (serv.man4). Service Manual (Revised January 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 56

MX-M565N  ADJUSTMENTS AND SETTINGS  4 – 26

 

This adjustment must be performed in the following cases:

* When the scan control PWB is replaced.

* When the EEPROM on the scan control PWB is replaced.

* When the scanner (reading) section is disassembled.

* When the scanner (reading) section is replaced.

* When U2 trouble occurs.

* When the DSPF/RSPF section is disassembled.

* When the DSPF/RSPF unit is replaced.

This simulation is to adjust the scanner reading position when
scanning the front surface in the DSPF mode. If this adjustment is
made improperly, the scanner stop position is shifted to the speci-
fied position and a shade of the document table may be reflected
on the lead edge section of the scan image in the DSPF/RSPF
(front surface) mode.

1)

Make a copy in the DSPF/RSPF (front surface) mode, and
check for any shade on the lead edge section of the copy
image.

If there is any shade of the document table on the lead edge
section of the copy image, perform the following procedures.

2)

Enter the SIM 53-8 mode, and press [MANUAL] key.

3)

Enter an adjustment value with 10-key, and press [OK] key.

When the set value is increased, the distance from the home
position to the DSPF/RSPF scanning position is increased.
When the set value is changed by 1, the scanning position is
changed by 0.1mm.

Perform the procedures of 1) - 3) until a satisfactory result is
obtained.

NOTE: After execution of this adjustment, be sure to execute ADJ

10C Copy mode image loss adjustment (DSPF/RSPF
mode).

 

This adjustment must be performed in the following cases:

* When the scan control PWB is replaced.

* When the EEPROM on the scan control PWB is replaced.

* When the scanner (reading) section is disassembled.

* When the scanner (reading) unit is replaced.

* When U2 trouble occurs.

* When the DSPF/RSPF section is disassembled.

* When the DSPF/RSPF unit is replaced.

NOTE: To execute this adjustment, the following items must have

been properly adjusted.

1)

Prepare the adjustment chart.

The adjustment chart can be made by the following proce-
dures. Use A4 (11" x 8.5") paper and draw arrow marks verti-
cally and horizontally on the front and the back surfaces. At the
same time, put marks of the lead edge, the trail edge, the front
end, and the rear end as well as the identification marks of the
front surface and the back surface.

Image area

Papar lead edge

Shadow image of DSPF

 

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BA C K

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ADJ 3C

Print engine print area (void area) adjustment

ADJ 7C

Main scanning direction image magnification ratio 
adjustment (DSPF/RSPF mode)

ADJ 7D

Sub scanning direction image magnification ratio 
adjustment (DSPF/RSPF mode)

ADJ 8B

Scan image off-center adjustment (DSPF/RSPF mode)

ADJ 10B

Document scan position adjustment (DSPF/RSPF 
mode scanner scan position adjustment)

F

L

R

FACE

BACK

R

T

F

L

T

Draw arrows.

Draw arrows.

Put the position 

marks.

Put the position 

marks.