3
4.3 LCD TEST........................................................................................................................................49
4.4. LED TEST .......................................................................................................................................50
4.5. UV MODULE TEST .......................................................................................................................51
4.6. PD TEST.....................................................................................................................................52
4.7. THERMAL PRINTER TEST .....................................................................................................53
5. HOW TO UPGRADE THE OS PROGRAM ..................................... 54
5.1 INTRODUCTION ..................................................................................................................................54
5.2 INSTALLATION AND UNINSTALLATION ...............................................................................................55
5.3 USAGE ...............................................................................................................................................61
5.4 TROUBLESHOOTING...........................................................................................................................66
5.5 APPENDIX .......................................................................................................................................68