MFC-J491DW FAQs & Troubleshooting MFC-J491DW Not your product? Sort by: Updated Date Popularity 3 Results 1. 14/12/2021 Telephone Line Interference/VoIP. 2. 11/02/2021 I am having an issue receiving faxes. 3. 29/05/2013 I cannot receive a color fax. Fax FAQs & Troubleshooting