Electrical Component Descriptions - Ricoh FT4430 Service Manual

16 April '88

ELECTRICAL COMPONENT DESCRIPTIONS

SYMBOL NAME
Motors
Ml Main Motor
M2 Lens Drive Motor
M3 Vacuum Fan Motor
M4
Exhaust Blower
Motor
M5
Second Scanner
Motor
M6
Scanner Drive Motor
Magnetic Clutches
MC1 Registration MC
MC2 First Paper Feed MC
MC3 Second Paper Feed
MC
Solenoids
SOL1 Toner Supply
Solenoid
SOL2 Cleaning Solenoid
Pick-off Solenoid
SOL3
Switches
SW1 Door Switch
SW2 Front Cover Safety
Switch
Main Switch
SW3
Sensors
S1
Lens Home Position
Sensor
Pulse Generator
S2
FUNCTION
Drives all main unit components
except otics unit and fans/bIowers.
(100Vac)
Positions the lens. (dc stepper)
Provides suction so that paper is
held firmly on the transport belt. (100
Vat)
Removes heat from around the
fusing unit. (100 Vat)
Positions the second scanner. (dc
stepper)
Drives the scanner. (dc stepper)
Drives the registration rollers.
Starts paper feed from the first paper
feed station.
Starts Paper feed from the second
paper eed station. fe1'
Energizes to supply toner.
Moves the cleaning blade against the
drum.
Brings the pick-off pawls into contact
with the drum.
Enables the Door Open indicator.
Cuts ac power to ac components.
Supplies power to the copier.
Informs the CPU when the lens is at
the full size position.
Supplies timing pulses to the main
board.
1-16
LOCATION
1
2
21
26
30
48
12
13
15
8
43
44
33
32
35
3
7