Ink jet printer for producing photographic prints, has edge detection sensor, controller for applying digital mask to printed image to prevent printing onto vacuum support, paper drier, and spool

摘要

Printer has supply roller (12), rear side printer (26) and perforator (26') between first transport roller (16) and measurement roller (18). A deflector (27) is between measurement rollers (18,20). Vacuum paper support (31') and non-vacuum paper support (31'') are between measurement (20) and transport rollers. Image sensor (46) detects perforations and paper edges. Controller (54) applies digital mask to printed image to prevent printing on to vacuum support. The printer has at least one supply roller (12), a rear side printer (26) and a perforator (26') between a first transport roller (16) and a measurement roller (18), a second measurement roller (20), a deflector (27) between the measurement rollers, a vacuum paper support (31') and a non-vacuum paper support (31'') between the second measurement and transport rollers, and a color ink jet print head (36). An image sensor (46) detects perforations and paper edges, and a controller (54) applies a digital mask to a printed image to prevent printing on to the vacuum support. A paper drier (48) and a paper spool (58) are also provided.