I have one for my computer, which uses a laser printer, and I have no problem with it.
Some UPSes have power outlets that go directly to line power. Is your laser printer plugged in to one of those? I'd be interested to know what make and model of laser printer and UPS you're using.
I have the APC Back-UPS BN1250LCD and the HP LaserJet P1005 Printer.
Jeanette Isabelle
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I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday