| Issue | Solution | |--------|----------| | Printer not found | Reinstall driver, try different USB port or cable. | | Prints gibberish | Check if POS software sends raw ESC/POS. Use “Generic / Text Only” mode if needed. | | Paper out error | Insert paper correctly (thermal side up). | | USB not working | Go to → Add a printer → “The printer I want isn’t listed” → Add a local printer → Use USB virtual port. | | Driver not signing (Windows 10/11) | Disable driver signature enforcement temporarily (Advanced startup → Disable driver signature). |
It is best practice to install the driver software before connecting the hardware. This prevents Windows from assigning a generic, incorrect driver automatically. black copper pos p80 driver setup v7.17
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