Linux has excellent printing support. The best resource for Linux printing is LinuxPrinting.org. There you can easily check to see how compatible a printer is with Linux, or review printers recommended for use with Linux.

A thin client is network computer without a hard disk drive, which is designed to be especially small so that the bulk of the data processing occurs on a server. An old computer that might otherwise be worthless can sometimes be used as a capable "thin client" with Linux.