10-12-2016 03:17 PM
I just sent an hour on a call with Canon tech support, to no avail. The only test fax that worked was to them! That does me no good, all other faxes connect, but cut off and are not sent. I got repeated NG transmission reports. My old Lexmark worked fine, same phone number (part of Comcast triple play service) and everything. Please help, I just installed this printer wirelessly two days ago, and this was the forst time I tried the fax function. Thanks!
10-14-2016 10:38 AM
Hello.
Troubleshooting with our phone support group will be needed to narrow down the cause of your issue. Please contact our toll-free phone support line using the "Contact Us" link below for additional assistance.
This didn't answer your question or issue? Find more help at Contact Us.
08-14-2019 10:10 AM
I cannot send or receive a fax on my mf644cdw. Every send transmision attempt ends in a TX error Report of Busy/No Signal.
08-15-2019 03:35 PM
Hi hennesslf.
Please call our telephone support group at 1-800-OK-CANON (652-2666), Monday - Friday 10:00 a.m. to 6:30 p.m. ET (excluding holidays). The representative will be able to perform testing to resolve the issue.
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