DOWNLOAD Sharp AR-M351U / AR-M451U (serv.man12) Service Manual ↓ Size: 1.29 MB | Pages: 12 in PDF or view online for FREE

Model
AR-M351U AR-M451U (serv.man12)
Pages
12
Size
1.29 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Maintenance details of following sections, 2-Fuser, 3-Paper Feed
File
ar-m351u-ar-m451u-sm12.pdf
Date

Sharp AR-M351U / AR-M451U (serv.man12) Service Manual ▷ View online

AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 24
(2) Maintenance and parts replacement
a. Fusing unit
1) Pull out the left door.
2) Remove the stopper R.
3) Pull the fusing lever, and remove the fusing unit.
a-1. Lower separation pawl
1) Remove the fusing unit.
2) Open the fusing rear lower PG, and remove the lower separa-
tion pawl.
a-2. Upper separation pawl
1) Remove the fusing unit.
2) Remove the rear upper PG, and remove the upper separation
pawl.
No.
Unit
Parts
a
Fusing unit
1
Lower separation pawl
2
Upper separation pawl
3
Thermistor
4
Lower heat roller
5
CL roller
6
CL roller bearing
7
Heater lamp
8
Upper heat roller
9
Upper heat roller gear
10
Thermostat
a-1
a-3
a-2
a-6
a-3
a-10
a-4
a-8
a-9
a
a-6
a-5
a-7
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 25
a-3. Thermistor
1) Remove the fusing unit.
2) Remove the screw, and remove the fusing drawer. Remove
the connector.
3) Remove the screw, and remove the thermistor.
a-4. Lower heat roller
1) Remove the fusing unit.
2) Release pressure with the pressure adjustment lever.
3) Remove the screw, and open the fusing unit.
4) Open the fusing rear lower PG.
5) Remove the lower heat roller, and remove the lower heat roller
bearing.
a-5. CL roller
a-6. CL roller bearing
1) Remove the fusing unit.
2) Remove the lower heat roller.
3) Remove the CL roller, and remove the CL roller bearing.
a-7. Heater lamp
1) Remove the fusing unit.
2) Open the fusing unit.
3) Remove the screw, and remove the heater lamp.
Be careful not to mistake the installing position of the heater
lamp.
When installing, loosen the screws on the front side 
 (drawer
ON side) then the screws on the rear side 
 (gear side) in this
sequence.
Check to confirm again that the screws are tighten securely. (If
any screw is loosened, a bad contact may cause heating.)
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 26
a-8. Upper heat roller
a-9. Upper heat roller gear
1) Remove the fusing unit.
2) Open the fusing unit.
3) Remove the fusing rear upper PG.
4) Remove the heater lamp.
5) Remove the upper heat roller, the roller stopper. The upper
heat roller gear, and the upper heat roller bearing.
a-10. Thermostat
1) Remove the fusing unit.
2) Open the fusing unit.
3) Remove the fusing rear upper PG.
4) Remove the heater lamp.
5) Remove the upper heat roller.
6) Remove the screw, and remove the electrode plate and the
thermostat.
When installing, check to confirm that the screws are securely
tighten again. (If any screw is loosened, a bad contact may
cause heating.)
3. Paper feed section
A. General
This section picks up paper in the cassette and feed it to the trans-
port roller section.
The capacity of the paper feed tray is 550 sheets for 64g/m
2
 or
500 sheets for 80g/m
2
.
There are three kinds of the paper feed desk: 3-stage paper feed
desk (AR-D27), 2-stage paper feed desk (AR-D28), and 1-stage
paper fed desk (AR-MU2). For details, refer to the AR-D27/D28/
MU2 Service Manual. 
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 27
B. Major parts and signal functions
+24V1
TRC\
LUMA
PED
CPFC\
PPD1
CSS
LUMB
LUD
RRC\
GND2
+5V2
GND2
+24V1
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
GND
19
20
GND2
+5V2
+5V2
GND2
21
22
23
24
+24V1
CFM1\
GND2
GND2
+24V1
CPFC\
1
PHNR-02-H+BU02P-TR-P-H
2
+24V1
2
1
GY
GY
BL
GY
RD
BL
GND2
+5V2
GND2
GND2
PED
+5V2
+5V2
LUD
PPD1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
PHNR-09-H+BU09P-TR-P-H
BR
BR
BR
BR
BR
BR
BL
GY
BR
3
1
2
179228-3(AMP)
LUD
+5V2
GND2
GY
BR
BL
B24B-PHDSS-B
CN13
PED
179228-3(AMP)
+5V2
1
GND2
2
3
GY
GY
RD
BL
BL
BR
BR
BR
DSW-F
MM-T
GND2
+5V2
GND2
MM\
9604S-08C
1
2
3
4
5
6
7
8
CN9
DSW-F
GND2
DSW-L
MM-T
GND1
+5V2
GND2
MM\
DSW-L
GND1
8FE-ST-VK-N
8
7
6
5
4
3
2
1
MM
LUM
CPFC
OR
OR
LUMA
LUMB
CSS
1
2
3
4
S4B-PH-K-S
GND2
CSS
CSS PWB
2
1
LUMA
LUMB
173979-2
CN2
CN1
LUMA
LUMB
1
2
173979-2
GY
BR
BR
BR
PED
LUD
PCU PWB
2
3
1
1
4
6
3
2
Code
Signal 
name
Name
Function/Operation
Type
Note
CPFC
CPFC
Paper feed clutch
Paper freed tray section roller ON/
OFF control
Electromagnetic clutch
LUM
LUM
Paper feed tray lift-up motor Drives the lift plate of the paper feed 
tray.
DC brush motor
Selection of Rotation 
mode/ Brake mode
PED
PED
Defector
Paper empty detection 
LUD
LUD
Defector
Paper tray upper limit detection
Page of 12
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Sharp AR-M351U / AR-M451U (serv.man12) Service Manual ▷ Download

  • DOWNLOAD Sharp AR-M351U / AR-M451U (serv.man12) Service Manual ↓ Size: 1.29 MB | Pages: 12 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp AR-M351U / AR-M451U (serv.man12) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp AR-M351U / AR-M451U (serv.man12) Copying Equipment. Information contained in Sharp AR-M351U / AR-M451U (serv.man12) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.