FAQs & Troubleshooting FAQ Search Results QL-820NWB Not your product? Search by FAQ ID number Search Back to FAQs & Troubleshooting. 2 Results 1.faqp00100320_001 (Video) 2-color Printing is not possible. 2.faqp00100320_000 2-color Printing is not possible. FAQs & Troubleshooting