Brother IntelliFAX 770 Plain Paper Thermal Fax Logo

Question about Brother IntelliFAX 770 Plain Paper Thermal Fax

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When I dial a fax number I get a busy signal even though I know that the number is not busy because I have dialed it on my outside line and it works. This has happened repeatedly. I have unplugged everything and replugged it but still it doesn't work. This applies to domestic calls and international ones. Please HELP!

Posted by Anonymous on

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Anonymous

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Since you mentioned that you have an outside line, do you have to use a code to dial out normally? Try plugging in a phone to the line for your fax machine, and attempt to dial the number for the other fax machine using the phone. You should reach the fax and hear a high pitched sequence of tones. This is the other fax machine trying to establish a connection. If you still get a busy signal, try calling the owner and letting them know that their fax machine is not accepting incoming calls.

Posted on Feb 22, 2010

Seth Crosby

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I called Canon about this. They had me tweak the transmission start speed (Menu>FAX setting>TX settings>TX start speed). It was too fast. Set it to 4800. Then it was too slow. Clicked it up to 7200 and now it works!! TX Start Speed should not be too fast or too slow.

Posted on Mar 13, 2013

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