Question about HP 4250 Monochrome LaserJet Printer
I have been informed that these fusers have a seperate heating element in the middle of the heat roller for envelopes to save energy and it's temperature is not sensed by the thermistor.If I trick the printer (with paper path tests) into printing envvelopes while thinking that it is letter the fusing is ok.
Posted on Apr 24, 2008
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Posted on Jan 02, 2017
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