[4] STRUCTURE
A. External fitting
B. Mechanism
Original feed cover
Original guide
Original support
Original transport
cover
Original exit section
cover
Display lamp
Original stopper
A21 weight plate
Semi-circular roller
Paper exit roller
Reverse
roller
transport belt
follower roller
Original transport belt
Transport belt
drive roller
Resist
roller
Paper feed roller
Separation
roller
Flapper
SF-A57
Separation
roller
Weight plate
Semi-circular roller
Paper feed roller
Paper exit
unit
Transport belt follower roller
SF-A18
Original transport belt
Transport belt
Resist
roller
Paper exit roller
C. PWB distribution
Control PWB
Reverse sensor
PWB (SF-A57 only)
LED PWB
Original reverse
sensor PWB
Original timing
sensor PWB
D. Motors, solenoids, and clutches
■
Motors
Code
Name
Type
Functions and operations
Contact/output
DFM
Paper feed motor
DC motor
Drives the pickup roller, the separation roller, and the resist roller.
DTM
Transport motor
Stepping motor Drives the transport belt roller.
DRM
Reverse motor
Stepping motor Drives the reverse roller and the paper exit roller.
CFM
Cooling fan motor
DC fan motor
Cools the power section.
DFSOL
Paper feed solenoid DC solenoid
Presses the paper feed section weight plate onto the original and
opens/closes the shutter.
When this is ON, the weight
plate and the shutter fall.
DRSOL Reverse solenoid
DC solenoid
Drives the reverse flapper to select the paper exit path or the
reverse feed path.
When this is ON, the
reverse path is selected.
DFM
DFSOL
DTM
DRM (SF-A57 only)
DRSOL (SF-A57 only)
CFM
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Содержание SF-A18
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