DOWNLOAD Sharp AR-M351U / AR-M451U (serv.man13) Service Manual ↓ Size: 1.66 MB | Pages: 10 in PDF or view online for FREE

Model
AR-M351U AR-M451U (serv.man13)
Pages
10
Size
1.66 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Maintenance details of following sections, 4-Transport Paper exit reverse,
File
ar-m351u-ar-m451u-sm13.pdf
Date

Sharp AR-M351U / AR-M451U (serv.man13) Service Manual ▷ View online

AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 36
3.
Paper transport in duplex printing (with AR-DU3/DU4 installed)
(1) Switchback operation and paper exit to the left tray
1) Paper transported from the fusing section is sent to the paper exit section of the machine. 
2) When the male bin stacker (AR-MS1) or the finisher (AR-FN5) is installed, the paper entry gate solenoid (FGS) selects the paper entry
gate to discharge paper outside the machine. 
3) The paper exit sensor (POD2) detects the rear edge of paper, and the paper exit motor (POM) is rotated reversely.
4) Paper is taken into the machine again, passed over the reverse gate, and transported to the duplex unit. 
5) When duplex printing is made, the ADU gate solenoid switches to the upper side of the ADU paper exit gate to switch the paper path to
the ADU.
6) When paper is discharged to the left tray or when paper is transported to the console finisher (AR-FN7), the ADU gate solenoid
switches to the upper side of the ADU paper exit gate to switch the paper path to the ADU. 
(2) Paper transport speed in duplex printing
The transport speed may be doubled in duplex printing depending on the paper position.
The positions of double speed are as follows:
1) From when the rear edge of paper passes the fusing section to when switchback operation is started.
2) From switchback operation, after the lead edge of paper passes APPD1, until a certain amount is transported.
3) After that, paper is stopped at the ADU paper feed position, and fed to the laser printer again.
4.
Transport with AR-FN6 installed
The AR-FN6 is provided with the decurler to improve alignment capability of finishing.
The decurler makes decurling against curling of paper by means of the difference in rigidity of the upper roller (metal) and the lower roller
(sponge).
Metal
Sponge
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 37
D. Maintenance and parts replacement
(1) Maintenance list
(2) Maintenance and parts replacement
Unit name
No.
Part name
When 
calling
100K
200K
300K
400K
500K
600K
700K
800K
Remark
Transport 
section/
Paper exit 
reverse 
section
1
Resist roller
2
Transport rollers
3
Transport paper guides
4
Paper dust remover unit
5
Paper transport detection
1
2
2
2
5
4
No.
Unit
Parts
a
1
Paper dust remover unit
b
Resist roller unit
1
Resist roller
✕❍
2
Paper transport roller
3
Paper transport detection
4
High voltage resistor PWB
c
Left door unit
1
Suction fan motor
2
High voltage resistor PWB
3
Drawer  PWB
d
Paper exit 
reverse unit
1
Paper exit detection 1
2
Paper exit motor
3
Left door open/close 
detection
4
Exhaust heat fan motor
5
Paper exit detection 2
6
Paper exit full detection
7
After-fusing roller
8
Paper exit roller
a-1
b-4
b-1
d-7
d
d-8
d-4
b-2
b
b-3
c-2
d-2
d-5
d-3
d-1
c-1
c-3
c
d-6
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 38
a-1. Paper dust remover unit
1) Open the front door.
2) Remove the paper dust cleaner unit.
b. Resist roller unit
1) Remove the paper dust cleaner unit.
2) Remove the screw, and remove the resist roller unit. Discon-
nect the connector.
b-1. Resist roller
1) Remove the paper dust cleaner unit.
2) Remove the resist roller unit.
3) Remove the parts, and remove the resist roller.
4) Remove the gear, the parallel pin, and the E-ring.
b-2. Paper transport roller
1) Remove the paper dust cleaner unit.
2) Remove the resist roller unit.
3) Remove the parts, and remove the paper transport roller.
b-3. Paper transport detection
b-4. High voltage resistor PWB
1) Remove the paper dust cleaner unit.
2) Remove the resist roller unit.
3) Remove the screw, and remove the paper dust cleaner guide.
AR-M351U/M451U, AR-M355U/M455U  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 39
4) Remove the screw and the connector, and remove the paper
transport detector.
5) Remove the screw and the earth wire, and remove the high
voltage resistor PWB.
c. Left door unit
1) Remove the screw, and remove the left door unit.
c-1. Suction fan motor
c-2. High voltage resistor PWB
1) Remove the left door unit.
2) Remove the screw, and remove the transfer lock pawl.
3) Remove the screw, and remove the left door transport paper
guide.
3) Remove the connector, the screw, and the washer, and
remove the suction fan motor.
4) Remove the screw, and remove the high voltage resistor
PWB.
When installing the fan, check the left door indication arrow and
note the fan direction.
c-3. Drawer PWB
1) Remove the left door unit.
2) Remove the left door transport paper guide.
3) Remove the screw, and the reverse gate unit and remove the
angle.
4) Remove the screw, and remove the angle.
5) Remove the connector, the screw, and remove the drawer
PWB.
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Sharp AR-M351U / AR-M451U (serv.man13) Service Manual ▷ Download

  • DOWNLOAD Sharp AR-M351U / AR-M451U (serv.man13) Service Manual ↓ Size: 1.66 MB | Pages: 10 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.man13) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp AR-M351U / AR-M451U (serv.man13) Copying Equipment. Information contained in Sharp AR-M351U / AR-M451U (serv.man13) 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.