QL-550 FAQs & Troubleshooting QL-550 Not your product? Sort by Updated Date Popularity 3 Results 1. 06/10/2020 What are the cleaning sheets for? When do I use them? 2. 01/05/2020 The print is horizontally compressed and not shaped correctly. 3. 09/03/2020 How do I replace the cutter blade? Maintenance FAQs & Troubleshooting