4250 smudges envelopes. worse on letterhead evelopes.
This is a common problem with 4250/4350 fusers.They have a seperate heating element for envelopes in the middle of the heat roller that is not controled by the thermistor.If I trick the printer (with paper path tests) into printing on an envelope while thinking it is letter the problem dissapears.I think HP will have to fix this, perhaps with driver or firmware upgrades.
Posted on Apr 24, 2008
I think it's been left open and has collected some fluff and dust, It needs a good clean. Just maybe there's a Toner Printer Cartridge leak.
Posted on Feb 05, 2008
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