Sharp AR-280 Service Manual page 29

RADF (AR-RF2)
A. External fitting
1
6
5
No.
1 Original guide
2 Original support
3 Original transport cover
4 Original exit section cover
5 Display lamp
6 Original feed cover
B. Mechanism
1
2
12 3
9
11
10
No. Name
1 Original stopper
3 Semi-circular roller
5 Flapper
7 Transport belt follower
roller
9 Transport belt drive roller
11 Resist roller
2
3
4
Name
4
5
8
6
7
No Name
2 A21 weight plate
4 Paper exit roller
6 Reverse rolloer
8 Oritinal transport belt
10 Paper feed roller
12 Separation roller
C. PWB distribution
1
5
4
No. Name
1 Control PWB
2 Reverse sensor PWB
3 LED PWB
4 Original timing sensor PWB
5 Original reverse sensor
PWB
6 – 16
AR-405
2
3
Functions and operations
RADF unit control,
communication with PCU
Document reverse detection
Document feed, document
remain display
Document timing detection
Document feed detection
1/21/1999