Normal Out of paper Printer overheated Paper slot not closed. Printer busy Printer exception PIN pad timeout Input online PIN Input offline PIN Init FlyParameterHelper first There is an open update task. Fly Key failed,and unable to parse error message MAG ENTRY CONTACT ENTRY CONTACTLESS ENTRY MANUAL ENTRY SCAN ENTRY QR CCODE ENTRY UNKNOWN ENTRY Open serial failed Open usb1 failed Open usb2 failed