Frequently Asked Questions

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Step6: Please find the ‘123.prn” file on the desktop and send it to us.
Step7: change your port back to your original port as Step 3
11. How to do when it shown “0x000000709 Error
Reason:
1. The compatibility issue about Windows system
2. When both of windows and XP sharing the same network, and the XP as the main host will be
led to this problem.
Solution A:
Step1: Select “Manage” in the This PC”.
Step2: Select “windows firewall and right click to run it. Restart your computer after you run
the windows firewall.