Sharp AR-M35 / AR-M450 (serv.man12) Service Manual ▷ View online
AR-M350 DISASSEMBLY AND ASSEMBLY, MAINTENANCE 7-7
l. Inverter PWB/LVDS PWB/LCD panel
1) Remove the operation panel unit.
2) Remove the harness, and remove the inverter PWB and the LVDS
2) Remove the harness, and remove the inverter PWB and the LVDS
PWB.
3) Remove the LCD rear cover, and remove the LCD.
m. Operation control PWB
1) Remove the operation panel unit.
2) Remove the operation control PWB.
2) Remove the operation control PWB.
n. Original detection PWB (Light receiving side)
1) Remove the operation panel lower cabinet.
2) Remove the original detection PWB (light receiving side).
2) Remove the original detection PWB (light receiving side).
o. Scan lamp
1) Remove the table glass.
2) Remove the scan lamp unit.
2) Remove the scan lamp unit.
p. CCD/lens unit
1) Remove the table glass.
2) Remove the dark-box cover.
3) Remove the CCD/lens unit.
Note:
Note:
The CCD/lens unit is factory-adjusted before shipping.
Since these adjustments cannot be performed in the market.
Never touch the screws other than screw 2) of the CCD/lens unit.
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AR-M350 DISASSEMBLY AND ASSEMBLY, MAINTENANCE 7-8
Note for CCD/lens unit installation
<1>Adjust the CCD unit adjustment value listed in the table below
with the scribed line on the lens base.
<2>Make a sample copy at the above position, and measure
the magnification ratio.
<3>Change the installing position in the horizontal direction to
adjust the magnification ratio.
•When the copy image is longer than the original, shift to
the positive (+) direction.
•When the copy image is shorter than the original, shift to
the negative (-) direction.
*
1 scale of the scribed line corresponds to 0.3% of
magnification ratio.
*
If this adjustment is not satisfactory, make a fine adjustment
with SIM 48-1.
with SIM 48-1.
(Refer to the adjustment described below.)
q. Scanner interface PWB
1) Remove the table glass.
2) Remove the PWB cover and the harness cover.
3) Remove the scanner interface PWB.
(3) (D) SPF unit
a. Upper transport unit
1) Remove the upper transport unit cover.
2) Remove the upper transport unit.
CCD adjustment value
+4 scales
5.0~
+3 scales
3.6~4.9
+2 scales
2.2~3.5
+1 scale
0.8~2.1
Reference
-0.6~0.7
-1 scale
-2.0~ -0.7
-2 scales
-3.4~ -2.1
-3 scales
-4.8~ -3.5
-4 scales
~ -4.9
CCD unit adjustment value
(+) direction
Reference line
(-) direction
1 scale: 1.4mm
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AR-M350 DISASSEMBLY AND ASSEMBLY, MAINTENANCE 7-9
b. Stopper solenoid
1) Remove the upper transport unit cover.
2) Remove the stopper solenoid.
2) Remove the stopper solenoid.
c. Sensors
1) Remove the upper transport unit cover.
2) Remove the sensors.
d. (D) SPF control PWB
1) Remove the SPF PWB, and remove the (D) SPF control PWB.
e. Original length sensor
1) Remove the OC cover.
2)Remove the original length sensor cover, and remove the sensor.
f. Original width detection volume
1) Remove the OC cover.
2) Remove the original length sensor cover.
3) Remove the volume cover and remove the volume.
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AR-M350 DISASSEMBLY AND ASSEMBLY, MAINTENANCE 7-10
Original width detection volume installation
<1>Extend the original guide to the maximum position.
<2>Adjust so that the mark on the width detection pinion gear is fitted
<2>Adjust so that the mark on the width detection pinion gear is fitted
with the mark on the volume mounting plate.
<3>Fix the mounting plate with the screw.
*
When the rotational volume sensor is replaced, the sensor value
must be adjusted to the paper size (mark on the tray).
must be adjusted to the paper size (mark on the tray).
(Refer to the SIM 53-6 or 53-7.)
g. Original paper feed unit
1) Remove the OC cover.
2) Remove the SPF lower cover.
2) Remove the SPF lower cover.
3) Remove the original paper feed unit.
h. Take-up roller, paper feed roller
1) Remove the upper transport unit cover.
2) Remove the paper feed roller cover.
3) Remove the hook of each roller, and remove each roller.
i. CIS unit
1) Remove the upper transport unit cover.
2) Remove the CIS unit.
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When the CIS unit is replaced, the CIS shading adjustment must be
performed. (Refer to the descriptions of ADJUSTMENTS.)
performed. (Refer to the descriptions of ADJUSTMENTS.)
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