MFC-L3750CDW FAQs & Troubleshooting MFC-L3750CDW Not your product? Sort by: Updated Date Popularity 2 Results 1. 20/12/2018 Scan Using Secure Function Lock 3.0 2. 14/12/2017 Scan multiple pages into one file instead of each scan being saved as a separate file. Scan FAQs & Troubleshooting