Sharp MX-M550U Service Manual page 75

(Scan off-center adjustment)
1) Place an original on the DSPF original tray.
2) Press the Start key. Check the off-center of the printed image.
If the off-center is 0 2.5 mm, no adjustment is required.
original
a
b
If the above requirement is not met, do the following steps.
3) Using the numeric keypad, change the adjustment value in
steps of 0.1 mm to adjust the scan image off-center. A larger
setting shifts the printed image toward the rear side.
4) Press the P or Start key. Pressing the Start key starts copy
operation as well as applying the adjustment value.
5) Check the off-center of the printed image.
Repeat the above adjustments until an acceptable result is
obtained.
7-D Adjust the scanned image off-center in
DSPF back-face mode (scan section)
This adjustment is needed in the following situations:
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* 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.
* U2 trouble has occurred.
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
copy
MX-M700N ADJUSTMENTS 6 – 24
(Adjustment mode selection)
1) Go through the modes specified in Simulation 50-12.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. SELECT 0-9, AND PRESS
START.
0.TRAY SELECT 1
2.MAGNIFICATION 100
(ADJUSTMENT DATA)
3.PLATEN 50 4.SPF SIDE1
Select other than 0 - 2, and
press [START] key.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. INPUT VALUE 0-99, AND
PRESS START.
3.PLATEN
Select 1, and
Press [START] key.
press [START]
key.1
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. NOW COPYING.
Select 0, and press [START] key.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. SELECT 1-16, AND PRESS
START.
(FEED TRAY)
1.TRAY1 2.TRAY2 3.TRAY3 4.TRAY4
5.BPT 6.LCC
(ABOVE+10: DUPLEX MODE)
Select 2, and press
[START] key.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT.
(MAGNIFICATION)
INPUT 25-400(%)
Increasing the adjustment value by 0.1 mm/step causes posi-
tion of the printed image toward the front side.
Item
0 TRAY Paper feed tray selection
SELECT
1 COPY Copy START (Default)
START
2 MAGNIFI Print magnification ratio
CATION
(Off-center adjustment value)
3 PLATEN OC mode adjustment
4 SPF SIDE1 SPF front surface adjustment
5 SPF SIDE2 SPF back surface adjustment
2) Using the numeric keypad, select the adjustment item DSPF
SIDE2, which is intended to adjust the off-center in DSPF
back-face mode.
3) Press the Start key.
1.COPY START
50 5.SPF SIDE2 50
Press [SYSTEM SETTINGS] key.
Press [SYSTEM SETTINGS] key,
or terminate copying.
Press [START] key,
or press [SYSTEM SETTINGS] key.
Press [START] key, or
press [SYSTEM
SETTINGS] key.
Setting
range
1 – 5
–
25 –
400%
0 – 99
2
50
1
100
Default
–
–
100
50