HL-3140CW FAQs & Troubleshooting HL-3140CW Not your product? Sort by: Updated Date Popularity 4 Results 1. 18/10/2019 Clean the drum unit 2. 10/05/2016 Clean the corona wire 3. 08/05/2013 Clean the LED head 4. 08/05/2013 Clean the paper pick-up roller More FAQs Cleaning FAQs & Troubleshooting