Ac And Dc Power Distribution - Ricoh FT4430 Service Manual

AC AND DC POWER DISTRIBUTION

The ac power supply is filtered then distributed to the fusing lamp and the
main transformer. The transformer supplies 100 volts to the cooling fan,
vacuum fan, and the main motor.
The"dc power supply unit receives ac 26, 16, and 10 volts, via fuses, from the
main transformer. These voltages are rectified and regulated to 24, 15 and 12,
and 5 volts respectively and distributed to the sorter, ADF, and the copier
main board. All supplies have their own ground line.
The main board supplies voltage to all copier electrical components including:
power packs, PCBs, and relays. It also supplies the editor.
The LCT has a separate power supply.
1-19
16 April '88