pup is a GTK+ GUI utility for maintaining your printer. For uni-directional mode, it supports the Lexmark Optra Color 40 and 45, Lexmark Optra E310, HP 2100M, HP 4000, and HP LJ4 Plus. For bi-directional mode, it supports any PJL printer (or partially, depending on the printer). Current features include ink cartridge setup and maintainance (Lexmark Optra 40/45 only), printing of various test pages, printer status, and querying and changing of printer default settings.
