Sharp AR-P350 / AR-P450 (serv.man8) Service Manual ▷ View online
AR-P350 EXTERNAL VIEWS AND INTERNAL STRUCTURES-3
4. Cross sectional view
No.
Name
No.
Name
1
OPC drum
15
Upper heat roller
2
Main charger
16
Pressure roller
3
Cleaning blade
17
Heater roller
4
LSU
18
Thermistor
5
Developing unit
19
Thermostat
6
Magnet roller
20
Fusing back roller
7
Toner hopper
21
Reverse gate
8
Transfer roller
22
Paper exit roller
9
PS roller
23
Full detection lever
10
PS front roller
24
Printer operation PWB
11
Machine tray paper feed roller
25
Printer control PWB
12
Machine tray separation roller
26
Power unit
13
Machine tray take-up roller
14
Machine tray rotating plate
22
23
24
21
20
15
26
4
18
19
17
16
2
3
25
13
10
11
12
5
7
14
9
8
6
1
AR-P350 EXTERNAL VIEWS AND INTERNAL STRUCTURES-4
5. PWB
Name
Function/Operation
1
PRT controller
Image process, image data communication control
2
PCU PWB
Overall control of the machine and options
3
Power unit
DC power supply
4
LD PWB (Inside LSU)
Laser ON control (Inside LSU: LSU cannot be disassembled.)
5
Mother PWB
Signal interface between PCU and the controller
6
Filter PWB
AC power input
7
Printer operation PWB
Key input, machine state display
8
High voltage resistor PWB
High voltage load adjustment
9
Cassette detection PWB
Paper cassette control
10
Drawer PWB
Fan control
11
High voltage PWB
High voltage power supply
12
Fuse PWB
Protection of the machine when an abnormal power is supplied.
13
Initial detection PWB (in the developing unit)
New toner cartridge detection
1
2
11
8
10
13
9
4
3
6
7
12
5
AR-P350 EXTERNAL VIEWS AND INTERNAL STRUCTURES-5
6. Motor, Clutch, Solenoid
Code
Function/Operation
Type
1
DM
Drum motor
Brushless motor
2
MM
Main motor
Brushless motor
3
DSBM
Paper exit motor
Stepping motor
4
TM
Toner motor
Synchronous motor
5
LUM
Lift-up motor
Synchronous motor
6
VFM2
Exhaust fan motor
Fan motor
7
VFM1
Cooling fan motor
Fan motor
8
CFM1
Cooling fan motor
Fan motor
9
FM
Fan motor
Fan motor
10
CFM2
Cooling fan motor
Fan motor
11
CPFC
Paper cassette paper feed clutch
12
TRC
Paper transport clutch
13
PSPS
Separation solenoid
14
RRC
Resist roller clutch
1.DM
6.VFM2
13.PSPS
3.DSBM
10.CFM2
5.LUM
7.VFM1
9.FM
7.VFM1
8.CFM1
4.TM
14.RRC
12.TRC
2.MM
11.CPFC
AR-P350 EXTERNAL VIEWS AND INTERNAL STRUCTURES-6
7. Switch, Sensor
Code
Function/Operation
Active logic
1
DSW-F
Front door open/close detection
H= Door open
2
DSW-L
Left door open/close detection
H=Door open
3
POD1
Paper exit detection
L= Paper detection
4
POD2
Paper exit detection
L= Paper detection
5
POD3
Paper exit detection
L= Paper detection
6
PPD1
Paper transport detection
L= Paper detection
7
TCS
Toner concentration sensor
8
TUD
Paper feed cassette upper limit detection
H= Upper limit detection
9
PED
Paper feed cassette paper empty detection
L= Paper empty detection
10
MAIN SW
Power switch
1.DSW-F
2.DSW-L
3.POD1
4.POD2
5.POD3
6.PPD1
7.TCS
8.TUD
9.PED
10.MAIN SW
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