DOWNLOAD Sharp AR-285 (serv.man10) Service Manual ↓ Size: 546.8 KB | Pages: 11 in PDF or view online for FREE

Model
AR-285 (serv.man10)
Pages
11
Size
546.8 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / AR280 285 335 Service Manual-External View and Internal Structure
File
ar-285-sm10.pdf
Date

Sharp AR-285 (serv.man10) Service Manual ▷ View online

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
2
Reverse sensor PWB
Document reverse detection
3
LED PWB
Document feed, document
remaining display
4
Original timing sensor
PWB
Document timing detection
5
Original reverse
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.
2
DTD
Turns HIGH when the original lead edge is
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.
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)
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
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
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
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
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
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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Sharp AR-285 (serv.man10) Service Manual ▷ Download