Cutting control for photo printer - has masking frames with holes lining up with lamps exposing cutting markings in space between prints

摘要

The photo-printer has interchangeable masking frames (1) to cover the different frame sizes to be printed. Each mask has two holes (4, 5) which line up with two of a series of lamps (7, 8) to expose cutting markings into the border between adjacent prints, for subsequent automatic cutting. The markings are applied automatically without any adjustment required when changing frame size. The markings define the frame size and paper width. A simple circuit control illuminates all the lamps, with only the relevant ones for the frame and paper width exposing the markings through the holes.