MFC-8690DW
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FAQs & Troubleshooting |
The Comm. Error message may appear on the Brother machine's LCD if the machine experienced a communication error while sending or receiving a fax. This type of error is generally caused by interference on the telephone line, an incorrect telephone line connection, or an alarm system or other device on the line.
If the telephone line is plugged into any device other than the wall telephone jack (surge protector, switching device, etc.), disconnect the line from that device and plug it directly into the wall telephone jack. This is for testing purposes. Removing such devices helps to determine whether the issue is related to the Brother machine or another device.
Change your Brother machine's Compatibility setting by following these steps:
When you change the Compatibility to Basic (for VoIP), the Error Correction Mode (ECM) feature is not available.
Contact your telephone provider and have them test the line.
Connect your Brother machine to a different, known-working telephone line and test the sending and receiving functions.
If the "Comm. Error" message continues to appear after you have the line checked and test the Brother machine on a different, known-working telephone, please contact Brother Customer Service from "Contact Us".