Ricoh FT5535 Service Manual page 255

2.3 ELECTRICAL COMPONENT DESCRIPTION
Refer to the electrical component layout on the reverse side of the Point to Point
Diagram (on waterproof paper).
Index
Symbol
No.
Motors
M1 5 Main
M2 2 Tray lift 1
M3 30 Tray lift 2
M4 29 Tray lift 3 (A549 only)
Circuit board
PCB1 1 Interface board
Sensors
S1 7 Tray upper limit 1
S2 18 Tray upper limit 2
Tray upper limit 3 (A549
S3 19
only)
S4 25 Relay 1
S5 23 Relay 2
S6 20 Relay 3
S7 28 Paper end 1
S8 24 Paper end 2
S9 21 Paper end 3 (A549 only)
Switches
SW1 22 Tray cover
SW2 3 Tray set 1
SW3 4 Tray set 2
SW4 6 Tray set 3 (A549 only)
Magnetic clutches
CL1 9 Paper feed 1
CL2 12 Paper feed 2
CL3 15 Paper feed 3 (A549 only)
CL4 11 Relay
Solenoids
SOL1 8 Paper pick-up 1
SOL2 13 Paper pick-up 2
Paper pick-up 3 (A549
SOL3 16
only)
SOL4 10 Separation 1
SOL5 14 Separation 2
SOL6 17 Separation 3
Heaters
H1 26 Tray (Option)
H2 27 Tray (Option)
FT5535/4527/4522
Description
Drives all the components of the paper tray
Raises the bottom plate in the paper tray
Controls the paper tray in response to signals
from the copier
Detects the top of the stack to stop the tray lift
motor
Detects the leading edge of the paper as it
leaves the tray to control pick-up solenoid and
jam detection timing
Detects when the paper tray is empty
Detects whether the tray unit cover is open and
cuts the 24 Vdc power if it is
Detects whether the paper tray is in place
Starts feeding paper from the tray
Drives the rollers in the paper trays
Lifts/drops the pick-up roller
Lifts/drops the separation roller
Turns on when the main switch is off to keep the
paper in the trays dry
8-4
Note
FSM