A power control circuit is connected between a power source and an electronic
controller
in a device such as a printer and includes a latchable power delivery state for
delivering power to an electronic controller of the device. Temporary closure of
a switch latches the power control circuit in its power delivery state. The electronic
controller subsequently detects temporary closure of the switch and responds with
an output signal that unlatches the power control circuit into a power non-delivery
state. The power control circuit may include an associated kick-start circuit portion
for causing the power control circuit to latch into its power delivery state in
response to initial application of power by the power source.