Do signed java applets have access to USB peripherals when run in the browser sandbox?

Question

I\'ve implemented a Java package with functionality to operate a POS printer and cash drawer connected to the workstation via USB. I\'ve also implemented an applet to utili

Answer 1

I had a similar problem with an Epson TM-H6000III on XP and Win7 32bit using JRE 1.6. Administrators could use the device, but "Users" could not. Java console was reporting:

Sep 23, 2011 3:38:47 PM com.xxxx.printer.epson.EpsonPrinter findPrinter
INFO: Error opening PrinterIII: jpos.JposException: 
    Could not connect to service with logicalName = 
    PrinterIII: Exception.message=Property or stream open error.

It appears the JRE installation had permission issues. Reinstalling JRE quickly cleared the problem.