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Gprinter | Gpu80160i Driver

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Once the gprinter gpu80160i driver is installed, go beyond basic printing.

Even with the correct driver, things can go wrong. Here is a troubleshooting matrix.

Cause: The driver is sending text commands, but the printer is in "Hex Dump Mode" or receiving the wrong emulation. Fix:

Gprinter does not always provide native Mac drivers for every model. However, because the GPU80160I supports ESC/POS, you can use the generic CUPS (Common UNIX Printing System) driver.

  • Copy the provided PPD file into /usr/share/ppd/ or add printer via CUPS web UI (http://localhost:631) and upload the PPD.
  • For raw USB, you can use lsusb to confirm device, then configure a USB backend in CUPS. Restart CUPS: sudo systemctl restart cups.
  • Print a test page.

    • Follow this exact order to avoid the "Driver not signed" error in Windows.

  • Now plug in the USB cable and turn on the printer.
  • Windows will automatically finalize the installation. You should hear the "Device Connected" chime.

    • Unlike standard USB keyboards, this is a POS (Point of Sale) thermal printer. It supports three different communication modes:

    The wrong driver mode means your receipt will either not print, print garbled text, or freeze your POS software.