QL-820NWB FAQs & Troubleshooting QL-820NWB Not your product? Sort by Updated Date Popularity 2 Results 1. 03/09/2020 Printing is not possible. (USB connection) 2. 06/22/2017 I'm using Windows Vista and trying to use a network connected QL-Printer, but the machine stays offline and I cannot print. What should I do? Connecting to a Computer FAQs & Troubleshooting