DCP-J140W FAQs & Troubleshooting DCP-J140W Not your product? Sort by: Updated Date Popularity 3 Results 1. 16/11/2016 My machine does regular cleaning cycles in the night. How can I correct this? 2. 26/04/2012 Improve poor print quality. 3. 27/01/2010 How do I clean the Scanner to improve the copy quality? Cleaning FAQs & Troubleshooting