Here are a few links to various printing-related projects:
foomatic-rip
or with the CUPS drivers of Gimp-Print and some proprietary packages. Nearly every distribution uses CUPS as standard printing system. It is also very nicely intergrated in KDE 2.2.2 and newer.foomatic-rip
to make non-PostScript files printable with every spooler.kprinter
” a graphical interface for printing, which also serves as the printing dialog for all KDE applications. Since KDE 3.x KDE Print supports Foomatic for setting up CUPS and LPD/LPRng/GNUlpr queues.