Printer Tray selection not working

Currently converting from 6i client server win 32 to 11gr2 linux 64bit server (with same win32 client)

In 6i we use   

srw.set_printer_tray ('tray 2');  

to set our trays in different reports in the BeforeReport , and works great

in 11gr2, it does not seem to work.

We use PCL printers, and I read that forms 10g had problems and limited support for PCL.

Hope someone can help me out.

Changing printers is not an option...so many printers...so many users...so many apps to convert.

The only workaround I can see, Don;t even know if it will, is to install multiple driver sof the printers on a workstation.