I will be deployed in remote desktop Java project, the local use of USB printer, print operation on a visit to a web page at a time, must on the machine computer login remote desktop, remote desktop to access to a local printer, if not in remote desktop, I will have no reaction, click on the web page to print for the printer on the server is redirected, No login, so there is no detection of the local computer, also can not access the local printer, how can let the computer without logging on the remote desktop, click the print button can also directly access the local printer for printing?