HL-L3240CDW FAQs & Troubleshooting HL-L3240CDW Not your product? Sort by: Updated Date Popularity 2 Results 1. 23/01/2023 Where can I find my Brother machine's serial number? 2. 19/12/2022 Can I use non-Brother or third party supplies with the Brother machine? Specification FAQs & Troubleshooting