Pos Printer Test V3.2 [upd] Jun 2026

| Module | Tests Performed | Result | |--------|----------------|--------| | Interface detection | Auto-reconnect, hot-plug | PASS | | Basic text printing | 80mm/58mm paper, multiple charsets | PASS | | Barcode (Code128, UPC-A) | Scan-verified | PASS | | QR Code (ISO/IEC 18004) | Readable by mobile POS | PASS | | Paper cutting | Full/partial cut | PASS | | Cash drawer | Pulse via pin 2/5 | PASS | | Status monitoring | Cover open, paper low, thermal head temp | PASS | | Logging & error recovery | Buffer flush on error | PASS |

| Test | Target | Measured | Status | |------|--------|----------|--------| | Time to first print (USB) | <1.0 sec | 0.4 sec | ✅ | | Throughput (lines/sec) | >50 | 62 lps | ✅ | | Barcode scan success rate | 99.5% | 99.8% | ✅ | | Cut-to-print alignment | ±1 mm | 0.5 mm | ✅ | | Cash drawer latency | <200 ms | 130 ms | ✅ | Pos Printer Test V3.2

No critical or major defects.