ZP500 with ShipRush FedEx v9.6.0.57399 - Can't Print Label

Hi Sysops,

I have a customer who is running ShipRush FedEx v9.6.0.57399 and the label will not print to their ZP500 unless the printer type in ShipRush is set to Laser/InkJet. They are using FedEx Labels with the doc tab on top. The environment is: Terminal Service connection to a Windows 2012 Server. The printer is a dedicated printer on the Shipper's local PC. ShipRush is running in TS environment. The printer is setup for access via the TS session. A test page works from the printer interface on the server. Yet if the printer is set with Type ZP500 in ShipRush - no test label or real label.

Any insight is greatly appreciated.

Thank You!