| Error Code | Message | Solution | |------------|--------------------------------------------------|-------------------------------------------| | 0xE431 | “Printer not responding to TVS MSP 430 handshake” | Check USB cable; reset printer to defaults | | 0xE432 | “Driver rejected – Non-exclusive hardware” | Verify printer model via self-test page | | 0xE433 | “Paper cut command timed out” | Run driver diagnostics tool → recalibrate |