Electrical Component Description - Ricoh FT4220 Service Training Manual

3. ELECTRICAL COMPONENT DESCRIPTION

Symbol Name
Motors
M1 Duplex Feed Motor
M2 Jogger Motor
Solenoid
SOL 1 Duplex Gate
Solenoid
Sensors
S1 Duplex Entrance
Sensor
S2 Duplex Turn Sensor Detects copy in the turn section.
S3 Duplex Paper End
Sensor
S4 Jogger Home
Position Sensor
Printed Circuit Board
PCB1 Duplex Main Board
STM
Function
Stepper motor (24 Vdc) drives feed roller
and moves the bottom plate up and down.
Stepper motor (24 Vdc) drives the jogger
fences to square the paper stack In the
duplex tray.
Moves the duplex gate to direct copies to the
duplex tray or to the paper exit.
Detects copy at the entrance.
Detects copy in the duplex tray.
Detects whether the jogger fences are at
home position.
Controls all duplex unit functions.
5-3
Index No.
8
2
4
5
7
6
3
1
FT4220/4222