I've had the Canon Pixma MX300 for about 6 months now. If I have the fax on and a phone call comes in about half the time (but not EVERY time
) I will be on the phone talking with the person for about 1 minute and then the fax machine will kick in and interrupt the call. When it kicks in I can't shut down the Canon until the In Use Memory light stops flashing which takes at least 30 seconds. During that time I can't make any calls.
I have tried every setting to stop this. It's so hard to troubleshoot because it doesn't do it every time.
I would REALLY appreciate help on this matter.