Negative film supplying device

A negative film supplying device for successively supplying a plurality of negative films to a printing device comprising:

• a negative film holding member for holding said negative films in a superposed state, including guide portions between which both transverse end portions of said negative films are interposed and a base portion interposed between said guide portions;
• moving means for moving said negative film holding member between a guiding position at which said negative film holding member guides said negative films to the printing device and a withdrawn position at which said negative film holding member is apart from said guiding position;
• delivery means for imparting force in a longitudinal direction of said negative film to a negative film, which is an outermost negative film in said negative film holding member when said negative film holding member is at said guiding position, so as to deliver said outermost negative film to the printing device;
• and
• a multiple-conveying prevention member formed by extending an end of said base portion of said negative film holding member downstream in a conveying direction of said negative films and by bending an extension of said base portion toward said negative films in order to prevent said negative films at an inner side of said outermost negative film from being conveyed simultaneously with said outermost negative film.

A negative film supplying device for successively supplying a plurality of negative films to a printing device comprising:

• a guide path connected to a negative film guide path of the printing device;
• a negative film holding member for holding said negative films in a superposed state, including guide portions and a flat base portion interposed between said guide portions, both transverse direction end portions of said negative films being interposed between said guide portions, opposing surfaces of said guide portions being inclined so as to approach each other, a length of said flat base portion between said guide portions being smaller than a width of said negative film so that said negative films are curved into convex shapes in said negative film holding member;
• moving means for moving said negative film holding member by rotating said negative film holding member between a guiding position, at which said flat base portion of said negative film holding member is disposed on said guide path and is substantially parallel to said guide path, and a withdrawn position, at which said flat base portion is apart from said guide path and is disposed substantially vertical to said guide path, around a rotating shaft disposed at a side of and parallel to said guide path of said negative film supplying device;
• delivery means for imparting force in a longitudinal direction of said negative film to a negative film, which is an outermost negative film in said negative film holding member when said negative film holding member is disposed on said guide path, so as to deliver said outermost negative film out of said negative film holding member;
• conveying means for receiving said outermost negative film delivered from said guide position by said delivery means and for conveying said outermost negative film to the printing device;
• and
• a multiple-conveying prevention member formed by extending an end of said base portion of said negative film holding member downstream in a conveying direction of said negative films and by bending an extension of said base portion toward said negative films in order to prevent said negative films at an inner side of said outermost negative film from being conveyed simultaneously with said outermost negative film;
• wherein said negative film supplying device is controlled such that when said negative film holding member is at said withdrawn position, said superposed negative films are loaded into said negative film holding member, and thereafter, said negative film holding member is moved by said moving means to said guiding position, said outermost negative film is delivered, and said delivered outermost negative film is received by said conveying means, and thereafter, said negative film holding member is moved to said withdrawn position, and said negative film is conveyed.