A screen printing machine is provided having a cabinet, a print screen, a platen assembly, and a curing assembly. The cabinet includes an upper opening and a shelf extending inwardly along at least two opposed cabinet sidewalls. The print screen is adapted to be held on the cabinet shelf in a lateral position. The platen assembly is provided for supporting a substrate suitable for receiving a screen print. The curing assembly is movably connected to the cabinet and located generally above the cabinet upper opening. The curing assembly includes a housing having an open bottom and at least one ultraviolet bulb attached within the housing and oriented to direct ultraviolet light downward. During use, the curing assembly moves laterally between a first position in which the ultraviolet light bulb is not directly above the substrate and a second position in which the ultraviolet light bulb is located directly above the substrate. A registration system is provided having a flexible spring arm.