Hey, is the fax line the same # as the dsl modem's line? If so, silly question: DOES IT HAVE A DSL FILTER INSTALLED?
Sounds like every time data flows on the dsl modem the hp rx's lines!!
You're lucky, other brands i.e. Samsung won't work at all.
Try throwing a DSL filter on the line(can't harm it) before dragging it all the way back to the shop!!! Gas ain't cheap!!
Faxman over 20 years! Factory trained on a baziillion models!
