setup CUPS on the machine with the printer.. make sure cups is installed, and runs at bootup.
if your printer is on the parallel port, run lsmod and make sure the modules "parport parport_pc and lp" are loaded. if they are not, load them with modprobe <module name>
to configure CUPS, connect to http://127.0.0.1:631
with your web browser.
add new printer, select you printer, blah blah blah...
if your printer is not on the list, then it is a windows printer (annoying)
goto linuxpinting.org download and install the files for yyour windows printer, make sure ghostscript is installed, allso foomatic, and pnm2ppa.
anyways.. then, to get other printers to print to a printer on a diff machine, use controll center (kde) to set the printer to CUPS and the ip address of the machine with the printer.. make sure firewalls dont get in the way...
quite easy really.