Sharp AL-1551 (serv.man4) Service Manual ▷ View online
AL-1551 DISASSEMBLY AND ASSEMBLY 8-16
3) Remove two screws and one harness, and remove the main motor.
4) Remove two screws and one connector, and remove the exhaust fan
motor.
C. Assembly procedure
For assembly, reverse the disassembly procedure.
8. Power section
A. List
B. Disassembly procedure
1) Remove two screws and one connector, and remove the power
PWB.
C. Assembly procedure
For assembly, reverse the disassembly procedure.
9. SPF section (SPF model only)
Pickup unit removal
1) Remove three fixing pawls from the bottom of the machine.
2) Remove the front cover and the rear cover.
2) Remove the front cover and the rear cover.
3)
2)
1)
3)
1)
No.
Part name Ref.
1
Power PWB
No.
Part name Ref.
A
Sensor PWB
B
Pickup solenoid
C
Clutch
D
Manual paper feed roller, pickup roller
E
Belt
F
SPF motor
G
Paper entry sensor
H
PS roller
I
Paper exit roller
2)
3)
1)
2)
1
2
2
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AL-1551 DISASSEMBLY AND ASSEMBLY 8-17
1) Remove the belt, the paper feed frame Spring, and two harnesses.
2) Remove the pickup unit.
2) Remove the pickup unit.
*
When installing the parts, be careful of the hole position of the paper
frame Spring.
frame Spring.
A. Sensor PWB
1) Remove two screws from the bottom of the pickup unit.
2) Remove the upper cover.
2) Remove the upper cover.
1) Remove two screws.
2) Remove the sensor PWB.
2) Remove the sensor PWB.
3) Remove the harness.
B. Pickup solenoid
1) Remove two screws.
2) Remove the pickup solenoid
*
When installing, hang iron core A on the solenoid arm.
C. Clutch
1) Remove the E-ring.
2) Remove the pulley and bush.
3) Slide the bush in the arrow direction.
3) Slide the bush in the arrow direction.
4) Lift the clutch, and 5) remove the clutch.
1) Remove the E-ring.
2) Remove the parts.
1
1
3
4
3
2
1
1
2
1
1
1
1
2
3
1
2
A
1
5
2
4
3
1
2
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AL-1551 DISASSEMBLY AND ASSEMBLY 8-18
D. Manual paper feed roller, pickup roller
1) Lift the paper stopper.
2) Slide the takeup roller unit.
3) Slide the bushing in the direction of the arrow.
4) Remove the takeup roller unit.
4) Remove the takeup roller unit.
*
When installing the takeup roller, hang the projection of the takeup
roller unit on the solenoid arm.
roller unit on the solenoid arm.
1) Remove the parts.
2) Remove the manual paper feed roller.
3) Remove the pickup roller.
3) Remove the pickup roller.
4) Remove the parts.
Transport unit removal
1) Remove two screws.
2) Remove the document tray unit.
3) Remove five screws.
3) Remove five screws.
4) Remove the transport unit.
E. Belt
1) Remove the belt.
F. SPF motor
1) Remove the harness.
2) Remove four screws.
3) Remove the drive unit.
4) Remove the belt.
4) Remove the belt.
5) Remove two screws.
6) Remove the SPF motor.
G. Paper entry sensor
1) Loosen the screw.
2) Open the paper exit paper guide.
3) Remove the paper entry sensor.
3) Remove the paper entry sensor.
4) Remove the harness.
1
4
2
3
A
1
2
3
1
1
4
1
2
1
3
3
3
3
4
1
3
1
2
2
4
5
5
6
1
4
2
3
! "#$%
AL-1551 DISASSEMBLY AND ASSEMBLY 8-19
H. PS roller
1) Remove the parts.
2) Remove the paper supply roller.
I. Paper exit roller
1) Remove the parts.
2) Remove the paper exit roller.
10.2nd cassette section
Paper feed unit removal
1) Remove the screw.
2) Remove the rear cover.
2) Remove the rear cover.
*
When installing, engage the pawl and install the unit.
1) Open the right cabinet.
2) Remove three screws.
2) Remove three screws.
3) Remove one connector.
4) While tilting down the 2nd connection arm A, pull and remove the
paper feed unit toward you.
*
When installing, securely insert two bosses C on the machine side
and two bosses D on the paper feed unit side. Be sure to secure the
and two bosses D on the paper feed unit side. Be sure to secure the
ground wire B.
*
Insert the 2nd page feed.
A. Paper sensor
1) Remove the pawl.
2) Remove the paper sensor.
3) Remove the harness.
3) Remove the harness.
No.
Part name Ref.
A
Paper sensor
B
Cassette detection SW
C
Paper feed solenoid
D
Transport roller
E
Paper feed clutch
F
2nd paper feed roller
1
1
2
1
2
1
1
2
A
1
2
4
B
A
D
D
C
3
2
3
1
, ! "#$%
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