HL-2240 FAQs & Troubleshooting HL-2240 Not your product? Sort by: Updated Date Popularity 2 Results 1. 07/17/2018 Print on labels and envelopes from the manual feed slot. 2. 04/25/2013 Print both sides of paper (Manual 2-sided/Duplex Printing for Mac OS X 10.4.11 or greater) Print FAQs & Troubleshooting