First thing, get the laser printer on a circuit by it's self, if all
posible, as a copier tech, I can tell you they do pull some power, even the
small ones, its the heater lamp(s) in them, some as high as 1000 watts when
printing, even in sleep mode, that lamp does cycle on and off to keep the
fuser at a pre-heat temp so it will come up to ready in a reasonable time,
so this could be your flickering lamp problem.
"James" wrote in message
...
Yes, I do have a laser printer plugged in to this circuit.

I know it draws a lot of current when operating, but mostly it is in the
sleep mode.

James