If the unit is not updating, check its IP connection to the Qmatic server. Ticket Numbers Not Appearing:

Use a thermal printer cleaning card or a lint-free cloth with isopropyl alcohol on the print head to fix faded tickets.

While this seems straightforward, industrial kiosk printers often have specific threading paths to prevent paper jams. The manual provides diagrams on how to properly route the thermal paper to ensure the sensor detects the paper edge correctly.

While you wait for the official PDF, here are the solutions to the three most common issues associated with the KT 2595: