DCP-315CN FAQs & Troubleshooting DCP-315CN Not your product? Sort by: Updated Date Popularity 2 Results 1. 11/03/2016 How do I clean the Scanner to improve the copy or fax quality? 2. 30/09/2014 My machine does regular cleaning cycles in the night. How can I correct this? More FAQs Cleaning FAQs & Troubleshooting