Troubleshooting Star Micronics TSP143III printer resetting during receipt printing. Includes diagnostics, solutions, and safety recommendations.
Movement or reconfiguration could indicate loose cables or incorrect settings.
Specific receipts may contain data that triggers a bug.
Older firmware versions may have known bugs that cause resets.
Receipt printers, like the TSP143III, rely on a stable power supply. Voltage drops during the thermal printing of dense data (totals, barcodes) can trigger a reset if the power supply is marginal. Baud rate mismatch or data corruption during transmission can also cause processing errors leading to a reset. Electrostatic discharge (ESD) events, especially in dry environments, can disrupt the printer's microcontroller. Signal attenuation due to cable length or damage can also contribute.
The Star Micronics TSP143III printer resets unexpectedly specifically when printing receipts with totals. The reset manifests as a loss of power or a complete restart of the device. No error codes are consistently displayed prior to the reset.
Do not attempt to open the printer casing. This will void the warranty and may damage the device. Ensure the printer is unplugged from the power outlet before cleaning or inspecting cables. Avoid using excessive force when connecting or disconnecting cables. Static electricity can damage electronic components. Ground yourself before touching the printer or its cables.
If the printer is connected via USB, try a different USB port on the POS system. Some USB ports may provide less power than others. Also, ensure the USB cable is shielded to minimize electromagnetic interference. If the issue persists, consider using an external powered USB hub.