HL-2150N FAQs & Troubleshooting HL-2150N Not your product? Sort by: Updated Date Popularity 2 Results 1. 15.03.2023 "Offline" appears on the Status Monitor. 2. 20.03.2012 The Drum LED is still on or flashing after I replace the drum unit with a new one. Error Messages FAQs & Troubleshooting