MFC-L6900DW(T) FAQs & Troubleshooting MFC-L6900DW(T) Not your product? Sort by: Updated Date Popularity 1 Results 1. 14/06/2017 The message "ERROR" or "NG" appears on the Transmission Verification Report when I try to send a fax. More FAQs Fax FAQs & Troubleshooting