Check your fax line connection is the FAX line plugged into the Line jack on the copier and NOT THE TELE connector. Must be Line. Take a old phone like a old princess phone and hook it up to the wall get a good dial tone call some one any noise? Have some one call the fax number OK if hooked to the copier get the tradition noise of a fax line, Check the fax line itself use only one with two wires not four, black and yellow only no red and green. Also put on one of the EMI devices on the cable going into the copier cut down on electrical noise. Line can not be digital must be all analog (POT) Plain Old Telephone, have your phone provider check the line.
Btw, I’m available to help over the phone in case u need at
https://www.6ya.com/expert/normanj_7893313f0751935f
×