CUPS 2.0.0 CUPS (Common Unix Printing System) is a modular printing system. It's based on the Internet Printing Protocol and supports PostScript or PDF and various raster printers. The spooler and drivers can deliver jobs remotely via IPP, LPD, SMB, and locally to USB, SCSI, Firewire, WiFi, serial, or parallel devices. With an extensive filter system it supports a wide range of input formats and printer targets. It's usable with BSD, Linux, MacOSX, Solaris and Windows servers.