PJ-722 FAQs & Troubleshooting PJ-722 Not your product? Sort by Updated Date Popularity 3 Results 1. 03.10.2019 What do the indicator lights mean? 2. 05.01.2016 The DATA indicator has turned off even though data remains in the printer. 3. 06.08.2015 Pages are partially printed, and the DATA indicator remains lit or is flashing. Error Messages/LED Indications FAQs & Troubleshooting