DCP-120C FAQs & Troubleshooting DCP-120C Not your product? Sort by: Updated Date Popularity 3 Results 1. 10/26/2010 When I connect the Brother machine to a USB hub, it doesn't work correctly. 2. 09/12/2005 Where is the USB port on the machine? I can't find it on the back of the unit. 3. 09/12/2005 How do I program the date and time? Product Setup FAQs & Troubleshooting