Thermal paper only prints on one side. If it comes out blank, flip the roll.
The driver acts as a translator between your computer’s operating system and the printer hardware. Without the specific ARP-990 KC driver, you may encounter: Random symbols instead of clear characters.
Finding and installing the correct does not have to be a nightmare. By starting with the official manufacturer sources, utilizing the ESC/POS generic fallback, and following the systematic manual installation steps outlined above, you can have your ARP-990 KC printing crisp receipts in under 15 minutes.