Sharp AR-285 (serv.man10) Service Manual ▷ View online
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 SFM
2 SCM
3 MM
4 TM
5 LUM1
7 DCFM
6 LUM2
8 ICUFM
9 LSUFM
10 PCFM
16 VFM6
15 VFM3
14 VFM5
13 VFM4
12 VFM2
11 VFM1
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
TRC2
Paper transport clutch
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
OGS
Two-stage paper exit tray solenoid
11
MTRC
Transport roller clutch (low)
12
TRC2
Transport roller clutch (high)
13
TRC1L
Vertical transport roller/paper feed roller low
clutch
clutch
14
TRC1H
Vertical transport roller/paper feed roller
high clutch
high clutch
10 OGS
1 PSPS
2 RRC
3 MPFC
4 MPFS
5 TRC2
6 CPFC1
7 CPFS1
8 CPFC2
9 CPFS2
11 MTRC
13 TRC1L
14 TRC1H
6 – 6
G. RADF (AR-285/335 only)
1) Main parts
No.
Function, operation
1
Original stopper
2
A21 weight plate
3
Semi-circular roller
4
Paper exit roller
5
Flapper
6
Reverse roller
7
Transport belt follower roller
8
Original transport belt
9
Transport belt drive roller
10
Paper feed roller
11
Resist roller
12
Separation roller
2) PWB distribution
No.
Name
Function, operation
1
Control PWB
RADF unit control, PCU
communication
communication
2
Reverse sensor PWB
Document reverse detection
3
LED PWB
Document feed, document
remaining display
remaining display
4
Original timing sensor
PWB
PWB
Document timing detection
5
Original reverse
sensor PWB
sensor PWB
Document feed detection
3) Motors, solenoids, and clutches
No.
Code
Name
Type
1
DFM
Paper feed motor
DC motor
2
DTM
Transport motor
Stepping motor
3
DRM
Reverse motor
Stepping motor
4
DFSOL
Paper feed solenoid
DC solenoid
5
DRSOL
Reverse solenoid
DC solenoid
4) Sensors, switches, detectors
No.
Code
Functions and operations
1
DFD
Turns HIGH when the original lead edge is fed
just in front of the resist roller.
just in front of the resist roller.
2
DTD
Turns HIGH when the original lead edge is
transported from the paper feed section to the
vicinity of the transport belt.
transported from the paper feed section to the
vicinity of the transport belt.
3
RDD
Turns HIGH when the original lead edge is
transported to the reverse/paper exit path.
transported to the reverse/paper exit path.
4
DWVR
Original width detection on the tray
5
DLS1
Original length detection on the tray
6
DLS2
Original length detection on the tray (Inch series
only)
only)
7
DSS
Original detection on the tray
8
DFMRS
Paper feed motor rotation detection
9
DWS
Original width detection
10
AUOD
ADF unit open/close detection
11
FGOD
Paper feed cover open/close detection
12
TGOD
Reverse cover open/close detection
12
1
2
3
4
5
6
7
8
9
10
11
1 OPCLS
4 DWTR
3 SIZ2
2 SIZ1
7 POS
6 REGS
8
14
13
10
11
12
9 DTM
5 EMPS
3 DRM
2 DTM
1 DFM
4 DFSOL
5 DRSOL
10 AUOD
8 DFMRS
7 DSS
5 DLS1
12 TGOD
4 DWVR
11 FGOD
9 DWS
1 DFD
2 DTD
3 RDD
6 DLS2
6 – 7
H. SPF (AR-280 only)
No.
Code
Name
Type
Function and operation
1
OPCLS
Cover open/close detector
Photo transmission
SPF cover open/close detection
2
SIZ1
Document length detector (Large)
Photo transmission
Tray document length detection (for long size)
3
SIZ2
Document length detector (Small)
Photo transmission
Tray document length detection (for short size)
4
DWVR
Document width sensor
Variable resistor
Tray document width detection
5
EMPS
Document detector
Photo transmission
Tray document empty detection
6
REGS
Resist sensor
Photo transmission
Tray document rear edge detection
7
POS
Document exit sensor
Photo transmission
Tray document exit detection
8
—
SPF control PWB
—
—
9
DTM
Paper feed/transport motor
Stepping motor
Tray document feed/transport/exit roller drive
10
—
Document pickup roller
—
—
11
—
Document feed roller
—
—
12
—
Document resist roller
—
—
13
—
Document transport roller
—
—
14
—
Document exit roller
—
—
I. 2-tray paper exit unit
No.
Code
Type
Name
Function and operation
1
POD1
Photo transmission
Paper exit detector
Detection of paper exit
2
POD2
Photo transmission
Paper exit detector (Upper stage)
Detection of paper exit to the upper tray
3
POD3
Photo transmission
Paper exit detector (Lower stage)
Detection of paper exit to the lower tray
4
DSBD
Photo transmission
ADU reverse detector
Detection of reversed paper to the duplex module
5
DGS
Solenoid
Reverse gate solenoid
Selection of paper exit to the lower tray or to the duple module
6
—
—
Paper exit roller
Paper exit from the tray
7
DSWL
Micro swtich
Detection of open and close for paper exit unit
1 OPCLS
4 DWTR
3 SIZ2
2 SIZ1
7 POS
6 REGS
8
14
13
10
11
12
9 DTM
5 EMPS
3 POD3
2 POD2
4 DSBD
1 POD1
6
7 DSWL
5 DGS
6 – 8
J. ADU (AR-285/335 only)
No.
Code
Name
Type
Function and operation
1
DPPD1
Paper in detector 1
Photo transmission
ADU tray paper in detection
2
DPPD2
Paper in detector 2
Photo transmission
ADU tray paper in detection
3
DPPD3
Paper in detector 3
Photo transmission
ADU tray paper in detection
4
—
Reverse motor
Pulse motor
Paper reversion and transport drive
5
—
Alignment motor
Pulse motor
Paper alignment plate drive
6
DTC1
Transport clutch 1
Electromagnetic clutch
7
DTC2
Transport clutch 2
Electromagnetic clutch
8
—
Transport roller 1
—
ADU tray paper transport
9
—
Transport roller 2
—
ADU tray paper transport
10
—
Transport roller 3
—
ADU tray paper transport
11
DSBS
Paper exit/reverse gate solenoid
Solenoid
Selection of paper exit to the lower stage of the 2-tray
paper exit unit and the reverse route
paper exit unit and the reverse route
12
DSCS
Contact/detach solenoid
Solenoid
Selection of paper storing and transport in ADU tray
13
—
Reverse roller
—
Selection of paper retaining and transport in paper
reversion
reversion
14
—
Transport roller
—
Paper transport
15
—
Alignment belt (232MXL)
—
Paper transport
16
—
Transport belt (145MXL)
—
Transport roller drive
17
—
Belt B
—
Transport roller drive
18
—
Alignment plate home position detector
Photo transmission
Alignment plate home position detection
10
16
9
2
3
8
17
11
13
12
14
1
4
5
15
6
7
18
6 – 9
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