Used for Trouble: T-000012
1) Check application resend settings
- Open POS / CSC configuration
- Disable automatic resend or recovery reprint options
- Confirm no manual resend rules are enabled
2) Inspect print queue behavior
- Open printer queue
- Cancel duplicate or repeating jobs
- Verify jobs do not reappear after deletion
3) Verify single printer definition
- Confirm only one printer instance exists in Windows
- Remove duplicate printers pointing to the same device/IP
- Ensure application targets only one printer name
4) Check spooler restart effects
- Restart Windows Print Spooler
- Observe whether old jobs are reissued
- Clear spooler cache if jobs persist
5) Review network stability
- Ping printer IP for drops or timeouts
- Check switch ports and cabling
- Resolve intermittent connectivity issues
6) Test controlled order
- Send one test order
- Confirm exactly one ticket prints
- Wait several minutes to ensure no delayed duplicates
7) Escalation check
- If duplicates continue:
- Review application logs for retry events
- Check for failover or recovery logic
- Escalate to application or syst