Read Sharp AR-M620 (serv.man18) Service Manual online
AR-M550/M620 SETTING AND ADJUSTMENTS 7 - 25
(Adjustment mode selection)
1) Go through the modes specified in Simulation 50-12.
2) Using the numeric keypad, select the adjustment item SPF SIDE2,
which is intended to adjust the off-center in SPF back-face mode.
3) Press the Start key
(Scan off-center adjustment)
1) Place a duplex document in the SPF original tray.
2) Press the Start key
Since the front side and back side images are copied onto sepa-
rate sheets, check the off-center of the back side image.
rate sheets, check the off-center of the back side image.
If the off-center is 0±4.0 mm, no adjustment is required.
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 front side.
shifts the printed image toward the front side.
4) Press the P or Start key.
Pressing the Start key starts copy operation as well as applying the
adjustment value.
adjustment value.
5) Check the off-center of the printed image.
Repeat the above adjustments until an acceptable result is obtained.
This adjustment is needed in the following situations:
• The paper feed section has been disassembled.
• 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.
• The LSU has been replaced.
• U2 trouble has occurred.
Select 2, and
press [START] key.
press [START] key.
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
Item
Set range
Default
0 TRAY SELECT
Paper feed tray
selection
selection
1 - 6
–
1 COPY START
Copy START (Default)
–
–
2 MAGNIFICATION Print magnification ratio
25 - 400%
100
(Off-center adjustment value)
3 PLATEN
OC mode adjustment
0 - 99
50
4 SPF SIDE1
SPF front surface
adjustment
adjustment
5 SPF SIDE2
SPF back surface
adjustment
adjustment
50
1
2
Select 1,
and press
[START] key.
and press
[START] key.
Press [CUSTOM SETTINGS] key.
Press [START] key.
Press [CUSTOM SETTINGS] key,
or terminate copying.
or terminate copying.
Select 0, and press [START] key.
Press [START] key or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. SELECT 0-9, AND PRESS
START.
0.TRAY SELECT
1
1.COPY START
2.MAGNIFICATION
100
(ADJUSTMENT DATA)
3.PLATEN
50
4.SPF SIDE1
50
5.SPF SIDE2
50
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. NOW COPYING.
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. INPUT VALUE 0-99, AND
PRESS START.
3.PLATEN
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 other than 0 - 2, and press [START] key.
100
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT.
(MAGNIFICATION)
INPUT 25-400(%)
ADJ 8
Adjusting the image position,
image loss, and void area
image loss, and void area
ADJ 8A
Adjust copied image loss/void area in
original table mode
original table mode
original
copy
a
b
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