[Eclug] Stupid cups questions?

Gentlemen;

Scenario:  Web server (Apache2/PHP) runs app that wishes to print to a 
printer physically attached to a different desktop on the same network.

Q1) What needs to be installed on the web server  to allow this to 
happen (I'm assuming its cups itself as it contains both "lp" and "lpr")?


Q2) Must the remote printer be defined as a queue on the web server that 
wishes to send output to it (i.e.: if web server is "WS" and remote 
desktop is "WS1" with a printer "P1" connected to it, must printer "P1" 
be "defined" with a queue on "WS")?


While I use cups for all my Linux printing needs, I am having difficulty 
making this somewhat simple application work.

And YES, I have perused the cups docs and faqs and what little forums 
there are as well as linuxprinting.org.

Thanks for any answers/suggestions.

Bob