Ricoh FT3320 Service Training Manual page 81

4. DATA BACK-UP
The main board has a back-up circuit.
clear misfed paper or to add toner/siIicone oil, the back-up system works to
prevent any data from being lost due
To hold data, pin 40 of the CPU must be supplied with + 5 volts. When
power is supplied,
supplies + 5 volts to the CPU. Cl 06 provides data back-up power for at
least 15 minutes.
charges.
C106 If the +5 volt power supply stops,
If the user opens the front cover to
to power loss.
1 .Non '87
C106