Ricoh FT4430 Service Manual page 21

16 April '88
NAME
SYMBOL
Fusing Lamp
L4
Power Packs
Power Pack - T/S
P1
Power Pack - C/B
P2
Transformer
TR1 Transformer
Counter
Total Counter
CO1
Relays
R1 AC Drive Relay
Others
Main Motor Capacitor
c
Fusing Triac
FT
DC Power Supply
PSU
Unit
FUNCTION
Provides heat to the fusing unit.
Provides dc voltage for the transfer
and provides ac and dc voltage for
separation coronas.
Provides high voltage power for the
charge corona and the development
roller bias.
Steps down the wall voltage to 100
Vat.
Keeps track of the total number of
copies made.
Main Power Relay
Start capacitor
Switches fusing lamp on and off.
Rectifies 100 Vac input and outputs
dc voltages.
1-18
LOCATION
23
41
47
38
29
49
34
39
37