[mikestew]

Ours causes a "UPS is now on battery power" dialog to pop up every time it prints.[0] I have wondered if it would pop the circuit breaker if the UPS didn't buffer it, or if the UPS is just overly sensitive.

[0](Because the printer is on the UPS that has a USB connection to my desktop.)

[bob1029]

I wouldn't put a laser printer on a typical consumer UPS. It draws a lot of current to warm up the fuser and may cause more wear than necessary to your line-interactive units. I always plug my laser printers directly into the grid.