TSP143III Reset After Interac Transaction Diagnosis -... | terminalfaults.org

Technical Background:

EMV/NFC transaction processing requires stable power and data transmission. Voltage dips during transaction finalization, electrostatic discharge (ESD) from user interaction, or baud rate mismatches can trigger a system reset. Signal attenuation in the communication cable may also cause errors, leading to a reset. Note: the device has anti-tamper mechanisms; do not attempt to open the casing.

Symptoms:

The Star Micronics TSP143III printer resets unexpectedly immediately after processing a specific Interac transaction.

Possible Causes:

Voltage fluctuation during transaction processing on the AC power line.
Electrostatic discharge (ESD) from the user or environment affecting the printer's circuits.
Loose or damaged communication cable (USB or Ethernet) causing intermittent signal loss.
Baud rate or communication protocol mismatch between the printer and the POS system.
Firmware bug triggered by specific Interac transaction data.
Power supply degradation, providing insufficient power during peak transaction load.

Solution:

1

Verify the printer's power cable is securely connected and plugged into a stable power outlet. Avoid extension cords if possible.
2

Inspect the communication cable (USB/Ethernet) for damage. Replace with a known good cable to rule out signal degradation.
3

Ensure the printer driver and firmware are updated to the latest versions. Check the Star Micronics website for updates.
4

Confirm the correct communication protocol (e.g., USB, Ethernet) and baud rate settings are configured in both the printer and the POS system.
5

Test the printer with a different Interac transaction type or amount to see if the issue is isolated to specific transactions.
6

If using a USB connection, try a different USB port on the POS system. Avoid USB hubs if possible.
7

Add a ferrite choke to the printer's power cable to mitigate potential electromagnetic interference.

Safety Warning:

Use Safe Handling procedures when working with electronic devices. Unplug the printer from the power outlet before inspecting or cleaning any cables or connections. Avoid operating the printer in environments with high humidity or static electricity.

Prevention:

Regularly clean the printer's exterior with a dry, antistatic cloth to minimize ESD buildup. Ensure cables are properly secured and free from strain to prevent damage. Schedule firmware updates as recommended by Star Micronics.

Expert Tip:

Try performing a power cycle by completely disconnecting the printer from the power source for at least 30 seconds, then reconnecting it. This can sometimes clear temporary glitches in the printer's memory. Check the error logs on the connected POS system, as this may offer clues.

Frequently Asked Questions

•Is the POS system on a dedicated electrical circuit?

Fluctuations on shared circuits can trigger resets.

•Does the issue occur with all Interac transactions or only specific ones?

Specific transactions may indicate a data-related issue.

•Has the printer been physically moved or had any recent hardware changes?

Movement or changes might have affected cable connections.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Is the POS system on a dedicated electrical circuit?

•Does the issue occur with all Interac transactions or only specific ones?

•Has the printer been physically moved or had any recent hardware changes?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: