Used for Trouble: T-000029

1) Confirm whether duplicates are system or user generated

• Ask staff if reprint was pressed
• Check if duplicates are identical or time-separated
• Identify affected order types only

2) Verify printer mappings

• Open POS / CSC printer configuration
• Confirm each order type is mapped to only one printer
• Remove any duplicate or fallback mappings

3) Check application retry behavior

• Review logs for timeout or resend messages
• Identify network delays triggering retries
• Ensure retry logic does not resend print jobs blindly

4) Inspect printer buffer behavior

• Power-cycle printer to clear buffer
• Test printing again after restart
• Observe whether duplicates recur

5) Check print queue and spooler

• Open printer queue
• Ensure jobs are not stuck or retrying
• Restart Print Spooler if queue behaves unexpectedly

6) Verify network stability

• Check for packet loss or intermittent drops
• Test continuous ping to printer
• Resolve instability before retesting

7) Test controlled orders

• Send a single test order
• Confirm exactl