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AC Power Distribution
The AC power circuitry supplies AC voltage whenever the power cord is
connected, and the power switch is ON. A toner cartridge must be installed
and the top access door must be closed before AC voltage is supplied to the
DC power circuits or the Fusing Assembly.
Overcurrent/Overvoltage Protection
There are two overcurrent/overvoltage devices in this printer:
The resettable circuit breaker (CB101) shuts off AC input power to the
LVPS in case of an AC overcurrent condition. To reset, remove the LVPS
and press in the circuit breaker button (Figure 5-3, callout 1).
Fuse 101 interrupts AC input power to the +24V DC and +5V DC power
circuits. To check or replace the fuse (Figure 5-3, callout 2) you must remove
the LVPS.
Low Voltage Power Supply
Figure 5-3
5-6 Functional Overview