MFC-L3750CDW FAQs & Troubleshooting MFC-L3750CDW Not your product? Sort by: Updated Date Popularity 6 Results 1. 01/08/2019 Clean the Machine 2. 12/20/2018 Clean the LED Heads 3. 12/20/2018 Clean the Paper Pick-up Rollers 4. 12/20/2018 Clean the Drum Unit 5. 12/20/2018 Clean the Scanner 6. 12/20/2018 Clean the Corona Wires Cleaning FAQs & Troubleshooting