| Exception | Description | 
|---|---|
| ConfigurationException | 设备配置异常类 Device configuration exception type | 
| DeviceNotConnectException | 模块未打开或未连接异常类 module deactivated or disconnected exception type | 
| FingerprintAlreadyEnrolledException | 指纹已经存在异常类 fingerprint has exception type | 
| FingerprintInvalidIDException | ID已被占用异常类 ID has been occupied exception type | 
| PrinterBarcodeInvalidException | |
| PrinterLowPager | 打印机缺纸异常类 printer lack paper exceotion type | 
| PSAMException | PSAM异常 PSAM exceprion | 
| RFIDArgumentException | 参数错误异常 parameter err | 
| RFIDNotFoundException | 寻卡失败异常 card searching failed err | 
| RFIDReadFailureException | 读卡失败异常 card reading failure err | 
| RFIDVerificationException | 验证失败异常 verify failure err |