convert an ps file with input tray

[Christian]

Hello togehter,

i hope, i have a chance to do this.

I have a print from a ubuntu client, datastream postscipt, with a input tray 1 , but i want to convert the datastream to input tray 3.
The printer is a HP Laserjet 4100.

The printing server is a cups server with ubuntu 9.10.
Can i do this with the program pstops?

debfile:
cups 1.4.3-1ubuntu1.2

thanks for all.

Regards
christian