Ensure you selected "POS-80" during installation and not "POS-58". If using a Serial cable, match the bits-per-second rate in Windows Device Manager with the printer’s default speed (usually 9600 or 115200). 2. Driver Installs, But Nothing Prints Cause: The printer is mapped to the wrong USB port.
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This happens when the communication speed (baud rate) or emulation language is mismatched. Re-install using a different brand's universal driver (e.g., switching from Xprinter to Rongta software). Ensure you selected "POS-80" during installation and not