It is likely that the printer head has gotten dirty.
- Please turn Rollo off and allow it to cool down
- Please use the provided alcohol pads to wipe the printer head clean. Any 70% Isopropyl Alcohol pad would work. These are commonly available in pharmacies and grocery stores as well as on Amazon. Image below shows the highlighted areas that could cause this fade / dead zone.
- Allow 2-3 minutes for components to dry, then turn Rollo back on.
If the issue persists, please also try to print the attached sample label below to ensure cause is not from the source file.
Finally, it is possible that something has interfered with Rollo's driver. Please uninstall Rollo, restart your computer, and install the newest Rollo driver available on www.RolloPrinter.com/driver/