I have a confession to make! The printer is a HP 4200 and the duplexer is a Type A so they should be compatible. I have configured the printer panel to have duplexer on and when I print a font page it prints double sided in duplex form, so the duplexer must be installed correctly! When I go to my PC workstation and try to configure it through printer properties, I can see the duplexer check box, but it is in the light gray mode which will not allow me to click it....any suggestions?
THANKS FOR ALL OF YOUR SUGGESTIONS SO FAR!!!
KEN