SUSE 11 sp3 OES11 sp2

Iprint services is in a cluster. I created a printer with Savin Universal Printer Driver. While creating the profile their is no option to Enable Bidirectional Support.

I downloaded the printer to windows 7 workstation and checked printer properties - port screen ; Enable Bidirectional Support option is unchecked.

Checked the enable bidirectional option and click-on OK. Opened the port screen and the option is unchecked.

Installed the Printer as a local tcp printer and the Enable bidirectional Support works fine.

Why is the option not visible in Imanager?

How can I check if the printer is in bidirectional mode?