Many ARP990KC units are actually rebranded GPrinter units (models like GP-5890X or GP-58130).
: Go to the "General" tab and select "Print Test Page" to confirm the high-quality output and proper connection. mini receipt printer arp990kc driver download high quality
Windows Update overwrote the driver. Solution: Go to Device Manager > Print queues > Right-click ARP990KC > Properties > Driver > Roll Back Driver. Many ARP990KC units are actually rebranded GPrinter units