DOWNLOAD Sharp AL-2021 Service Manual ↓ Size: 12.48 MB | Pages: 120 in PDF or view online for FREE

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AL-2021
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120
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12.48 MB
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PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual
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al-2021.pdf
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Sharp AL-2021 Service Manual ▷ View online

AL-2041    DISASSEMBLY AND ASSEMBLY  8 - 4
5) Remove five screws. Remove the operation unit, and discon-
nect the connector.
6) Remove the right cabinet.
7) Remove the left cabinet.
8) Remove the screw, and remove the rear cover.
9) Remove the table glass.
10) Move the carriage to the position indicated on the figure.
11) Loosen the screw which is fixing the tension plate.
12) Move the tension plate in the arrow direction to release the ten-
sion, and remove the belt.
13) Remove the screw, and remove the rod stopper.
14) Remove the rod.
15) Lift the rear side of the carriage, remove the belt and the con-
nector, and remove the carriage.
2)
4)
5)
6)
7)
8)
1)
1)
1)
3)
1)
1)
1)
2)
4)
3)
1)
2)
3)
1)
2)
4)
3)
AL-2041    DISASSEMBLY AND ASSEMBLY  8 - 5
C. Assembly procedure
CCD core
1) Insert the CCD-MCU harness into the CCD PWB of the carriage
unit.
2) Attach the CCD-MCU harness to the duplex tape on the back
surface of the carriage unit. Clean and remove oil and dirt from
the attachment surface.
3) Pass the CCD-MCU harness through the square hole in the
base plate.
4) Attach the CCD-MCU harness to the base plate with duplex
tape.
5) Attach two cable fixing sheets to fix the CCD-MCU harness to
the base plate.
6) Pass the core through the CCD-MCU harness and fix the core.
7) Insert the CCD-MCU harness into the MCU PWB.
4. Fusing section
A. List
B. Disassembly procedure
1) Remove the connectors (3 pcs.) of the rear cabinet.
2) Open the side cover, remove two screws, and remove the fus-
ing unit.
3) Cut the binding band, remove the screw, and remove the ther-
mistor.
Note: Attach the FFC to the base 
plate securely with duplex tape to 
prevent against coming loose.
Note: Attach the FFC to 
fit with the marking line.
Marking line.
No.
Part name Ref.
1
Thermistor
2
PPD2 sensor
3
Heater lamp
4
Pressure roller
5
Heat roller
1)
2)
3)
2)
1)
2)
3)
Thermistor
AL-2041    DISASSEMBLY AND ASSEMBLY  8 - 6
4) Remove the screw and remove the resistor.
Remove the screw and remove the U-turn guide.
Note: Check to confirm that the fusing lower earth spring (A) does
not extend over the fusing bearing (B) after tightening the
screw.
Pressure roller section disassembly
5) Remove the three screws, remove the fusing cover lower on the
right side, and open the heat roller section.
6) Remove the screw and remove the PPD2 sensor.
7) Remove the plate spring on the right and remove the heater
lamp.
8) When opening the fusing unit, slide the fusing lower earth
spring in the arrow direction, and open the unit.
If the fusing unit is opened without sliding the fusing lower earth
spring, the fusing lower earth spring is deformed.
If the fusing lower earth spring is once deformed, the earth
function may not work properly. Replace the deformed spring
with a new one.
1)
2)
3)
A
B
1)
5)
5)
6)
6)
4)
3)
2)
1)
2)
PPD2 sensor
1)
2)
Heater lamp
AL-2041    DISASSEMBLY AND ASSEMBLY  8 - 7
:'10/Oct/20
1
9) Remove the spring, and remove the upper separation pawls (3
pcs.).
10) Remove the E-ring and remove the reverse gate.
11) Remove the pressure release levers on the right and the left
sides.
12) Remove the pressure roller, and the spring.
Note: Apply grease to the sections specified with an asterisk (*).
Grease: "JFE552" UKOG-0235FCZZ
Heat roller disassembly
(Continued from procedure 4).)
5) Remove screws, remove the fusing cover, and open the heat
roller section.
Note: When opening the fusing unit, be careful not to deform the
fusing lower earth spring as described in the item 8) of "Pres-
sure roller section disassembly.
6) Remove the C-ring and the fusing bearing, and remove the
heat roller.
3)
1)
2)
2)
1)
3)
1)
1)
1
1)
2)
2)
1)
3)
3)
Pressure roller
1
1)
2)
2)
3)
3)
1)
2) 3)
Heat roller
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