HL-3170CDW FAQs & Troubleshooting HL-3170CDW Not your product? Sort by: Updated Date Popularity 4 Results 1. 09.07.2015 Clean the corona wire (video instructions available) 2. 14.02.2013 Clean the LED head 3. 13.11.2012 Clean the paper pick-up roller 4. 13.11.2012 Clean the drum unit Cleaning FAQs & Troubleshooting