HL-2240 FAQs & Troubleshooting HL-2240 Not your product? Sort by: Updated Date Popularity 3 Results 1. 27/08/2014 Clean the corona wire of the drum unit. 2. 10/08/2010 Clean the paper pick-up roller. 3. 10/08/2010 Clean the Drum Unit. More FAQs Cleaning FAQs & Troubleshooting