DCP-540CN FAQs & Troubleshooting DCP-540CN Not your product? Sort by: Updated Date Popularity 1 Results 1. 01.08.2006 When a large capacity xD-Picture Card™ is inserted into the media slot, I have noticed that the copy speed in "Best" quality mode is slower than when the media (memory) card is removed. Why? Copy FAQs & Troubleshooting