DCP-7040 FAQs & Troubleshooting DCP-7040 Not your product? Sort by: Updated Date Popularity 4 Results 1. 05/10/2013 How do I clean the corona wire? 2. 06/03/2009 How do I clean the drum unit? 3. 02/15/2008 How do I clean the laser scanner window? 4. 01/14/2008 How do I clean the scanner to improve the copy quality? Cleaning FAQs & Troubleshooting
