PJ-622 FAQs & Troubleshooting PJ-622 Not your product? Sort by Updated Date Popularity 3 Results 1. 26/04/2023 Where can I find my Brother printer's serial number? 2. 12/05/2022 I cannot save a file downloaded from the Brother support website (For Windows) 3. 07/11/2019 How do I install the printer driver from the CD-ROM? (for Windows) More FAQs (English only) Installation FAQs & Troubleshooting