6. POWER DISTRIBUTION
6.1 FT4220 COPIER
The DF uses three DC power levels: +24 volts, +12 volts, and +5 volts.
When the main switch is turned on, the option transformer receives the wall
outlet ac power through the ac drive board and outputs 10 volts ac and 26
volts ac to the option dc power supply board. The option dc power supply
board then converts the 10 volts ac input to +5 volts dc and the 26 volts ac
input to +24 volts. Then, those two dc voltages are supplied to the DF main
board.
The regulator IC on the DF main board further steps down the +24 volts to
+12 volts.
115Vac
26Vac
10Vac
220/230/240Vac
5V
+12V
+24V
+24V (VA)
+5V (VC)
Regulator
IC
DF Main Board
(PCB1)
AC Drive
Board
(PCB2)
Option
Transformer
(TR2)
Option DC
Power Supply
Board
(PCB6)
FT4220/4222
3-8
STM
Summary of Contents for FT4215
Page 1: ...FT4220 4222 4215 SERVICE TRAINING MANUAL ...
Page 12: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Page 28: ...8 AC POWER AND DC POWER DISTRIBUTION FT4220 4222 1 16 STM ...
Page 31: ...SECTION 2 DETAILED SECTION DESCRIPTIONS ...
Page 114: ...SECTION 3 DOCUMENT FEEDER ...
Page 138: ...SECTION 4 SORTER ...
Page 157: ...SECTION 5 DUPLEX ...