HL-4040CDN FAQs & Troubleshooting HL-4040CDN Not your product? Sort by: Updated Date Popularity 3 Results 1. 11/24/2022 What are supported file formats for the direct print feature? 2. 08/03/2022 How do I use the "Print to file" feature? 3. 04/15/2009 How do I print data directly from the USB flash memory drive? Print FAQs & Troubleshooting