以下两个都是通讯类的代码，很多机器都有代码的，原因是各个设备之间的启动顺序有先后引起的
3-317 UI to System Communications Fail RAP(UI与打印系统之间通讯)
Description
Fault Code 3-317 indicates that the UI PWB detected a Communications failure between the UI PWB and the System PWB.
16-510 Communication Failure Between the DFE and IOT(服务器与打印机通讯)
Description
Fault Code 16-510 occurs when the DFE is rebooted and the DocuColor 5000 is left On.