I have windows server 2003. What permissions is required, to user bob can print on printer who is attached to computer where sits alice. Of course, booth users are connected to server.
At this moment i have user bob in Power operators group. But i want to allow only print to another users printers.
If i put user in printer operators group, then that user does'n see other printers.
OLD ANSWER (based on the assumption they were on the same network)
On Alice's computer, share out the printer (right click the printer and choose Share). Set permissions if you want or leave it so that everyone can print to it.
On Bob's computer, add a shared printer and for the path choose
\\nameofalicecomputer\printersharename-- you can also simply browse to the path by going to start, run, and then typing\\nameofalicecomputerand hit enter. Then right click the printer in the new Explorer window and choose "Connect".Make sure you have the proper drivers as needed during the printer install.
NEW ANSWER
I honestly don't think this is possible with redirected printers and isn't ideal regardless. You would require both Bob and Alice to be connected to the terminal server at the same time for it to work. Bob would need elevated rights on the server to see other's redirected printers which isn't smart.
Your better option would be to look at sharing out Alice's printer on the web or simply using email/ftp/webfilesharing to get the print job from Bob to Alice for Alice to print locally.