MFC-9450CDN FAQs & Troubleshooting MFC-9450CDN Not your product? Sort by: Updated Date Popularity 4 Results 1. 02/10/2021 How do I replace the belt unit? 2. 02/10/2021 How do I replace the waste toner box? 3. 02/10/2021 Replace the drum unit. 4. 02/10/2021 Replace the toner cartridge Video FAQs FAQs & Troubleshooting