MFC-B7700D FAQs & Troubleshooting MFC-B7700D Not your product? Sort by: Updated Date Popularity 5 Results 1. 19/06/2019 Clean the Paper Pick-up Rollers 2. 19/06/2019 Clean the Drum Unit Using Drum Dot Print 3. 19/06/2019 Clean the Scanner 4. 19/06/2019 Clean the Corona Wire 5. 08/01/2019 Clean the Machine Cleaning FAQs & Troubleshooting