Sharp AR-405 (serv.man8) Service Manual ▷ View online
B. PWB location
No.
Name
Function, operation
1
Operation key PWB L
Key input
2
LCD unit
Operation input, machine
state display
state display
3
Operation key PWB R
Key input
4
Invertor PWB
LCD backlight control
5
Operation control PWB
Operation input, display
control
control
6
CCD PWB
Document image input
7
Fusing interface PWB
Fusing unit, PCU interface
8
Copy lamp lighting PWB
Copy lamp lighting control
9
Copy lamp lighting interface
PWB
PWB
Copy lamp, PCU interface
10
Document size detecting
PWB (Light emitting side)
PWB (Light emitting side)
Document size detection
11
Scanner driver PWB
Optical system scanner unit
drive
drive
12
PCU PWB
Overall control of the copier
and options
and options
13
Interface PWB
No.
Name
Function, operation
14
AC power PWB
AC power input
15
DC power PWB
DC power supply
16
High voltage PWB
Process high voltage, bias
voltage supply
voltage supply
17
Lift-up motor PWB
Paper tray bottom plate lift
up
up
18
Paper transport sensor PWB
Paper transport detection
19
Multi feed tray paper size
detection PWB
detection PWB
Document size detection
20
Process thermistor PWB
Temperature detection in
the process unit
the process unit
21
Document size detecting
PWB (Light receiving side)
PWB (Light receiving side)
Document size detection
22
Discharge lamp PWB
OPC drum discharge
23
Drum marking sensor PWB
24
Process control PWB
25
ICU PWB
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
25
19
20
21
22
23
24
AR-405
1/21/1999
6 – 13
C. Sensor location
No.
Signal name
Function, operation
1
OCSW
Document cover open/close detection
2
PSD
Separation detection
3
PPD2
PS paper detection
4
MPED
Manual paper feed paper empty detection
5
MPLD1
Manual paper feed paper length detection 1
6
MPLD2
Manual paper feed paper length detection 2
7
MPLS1
Manual paper fed tray pull-out detection 1
8
MPLS2
Manual paper feed tray pull-out detection 2
9
PPD1
Paper transport detection 1
10
DSWR
Right door open/close detection
11
PFD
Paper transport detection 1
12
TFD
Waste toner full warning detection
13
LUD1
Upper cassette upper limit detection
14
LUD2
Lower cassette upper limit detection
15
PED1
Upper cassette paper empty detection
16
PED2
Lower cassette paper empty detection
17
DSWL
Left upper door open/close detection
18
POD1
Paper exit detection (after fusing)
19
MAIN SW
Power switch
No.
Signal name
Function, operation
20
MHPS
No. 1 mirror home position detection
21
DSWF
Front cover open/close detection
22
LCSPD1
No. 2 tray paper remaining detection 1
23
Operation
PWB
thermistor
PWB
thermistor
Operation PWB peripheral temperature
detection
detection
24
Process
section
thermistor
section
thermistor
Process section peripheral temperature
detection
detection
25
Fusing
section
thermistor
(Center)
section
thermistor
(Center)
Heat roller temperature detection
26
Fusing
section
thermistor
(Sides)
section
thermistor
(Sides)
Heat roller temperature detection
19 MAIN SW 20 MHPS 21 DSWF
1 OCSW
2 PSD
3 PPD2
4 MPED
5 MPLD1 6 MPLD2
8 MPLS2
7 MPLS1
9 PPD1
10 DSWR
11 PFD
12 TFD
13 LUD1
15 PED1
15 PED1
14 LUD2
16 PED2
22 LCSPD1
30 UCSPD1
17 DSWL
18 POD1
25, 26
23
24
AR-405
6 – 14
1/21/1999
D. Motor location
No.
Abbreviation
Name
Type
1
SFM
Suction fan motor
Fan motor
2
SCM
Scanner motor
Stepping motor
3
MM
Main motor
Brushless motor
4
TM
Toner motor
Synchronous motor
5
LUM1
Upper stage lift-up
motor
motor
Synchronous motor
6
LUM2
Lower stage lift-up
motor
motor
Synchronous motor
7
DCFM
Power fan motor
Fan motor
No.
Abbreviation
Name
Type
8
ICUFM
ICU fan motor
Fan motor
9
LSUFM
LSU fan motor
Fan motor
10
PCFM
Process fan motor
Fan motor
11
VFM1
Exhaust fan motor 1
Fan motor
12
VFM2
Exhaust fan motor 2
Fan motor
13
VFM4
Exhaust fan motor 4
Fan motor
14
VFM5
Exhaust fan motor 5
Fan motor
15
VFM3
Exhaust fan motor 3
Fan motor
16
VFM6
Exhaust fan motor 6
Fan motor
1 S F M
2 S C M
3 M M
4 T M
5 L U M 1
7 D C F M
6 L U M 2
8 I C U F M
9 L S U F M
1 0 P C F M
1 6 V F M 6
1 5 V F M 3
1 4 V F M 5
1 3 V F M 4
1 2 V F M 2
1 1 V F M 1
F. Clutch solenoid
No.
Abbreviation
Function, operation
1
PSPS
Paper separation solenoid
2
RRC
Resist roller clutch
3
MPFC
Manual paper feed clutch
4
MPFS
Manual paper feed solenoid
5
MSS
Manual paper feed shutter solenoid
6
CPFC1
Upper stage cassette paper feed clutch
7
CPFS1
Upper cassette paper feed solenoid
8
CPFC2
Lower cassette paper feed clutch
No.
Abbreviation
Function, operation
9
CPFS2
Lower cassette paper feed solenoid
10
MTRC
Transport roller clutch (low)
11
TRC2
Transport roller clutch (high)
12
TRC1L
Vertical transport roller/paper feed roller low
clutch
clutch
13
TRC1H
Vertical transport roller/paper feed roller
high clutch
high clutch
1 PSPS
2 RRC
3 MPFC
4 MPFS
TRC2
6 CPFC1
7 CPFS1
8 CPFC2
9 CPFS2
10 MTRC
12 TRC1L
13 TRC1H
11
5 MSS
AR-405
1/21/1999
6 – 15
RADF (AR-RF2)
A. External fitting
No.
Name
1
Original guide
2
Original support
3
Original transport cover
4
Original exit section cover
5
Display lamp
6
Original feed cover
B. Mechanism
No.
Name
No
Name
1
Original stopper
2
A21 weight plate
3
Semi-circular roller
4
Paper exit roller
5
Flapper
6
Reverse rolloer
7
Transport belt follower
roller
roller
8
Oritinal transport belt
9
Transport belt drive roller
10
Paper feed roller
11
Resist roller
12
Separation roller
C. PWB distribution
No.
Name
Functions and operations
1
Control PWB
RADF unit control,
communication with PCU
communication with PCU
2
Reverse sensor PWB
Document reverse detection
3
LED PWB
Document feed, document
remain display
remain display
4
Original timing sensor PWB
Document timing detection
5
Original reverse sensor
PWB
PWB
Document feed detection
1
2
6
5
3
4
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
AR-405
6 – 16
1/21/1999
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