a color copier including an exposure light source exposes an original document with red , blue , and green light , on a photosensitive film having a substrate and an ink coating which includes ink particles of multiple colors carried on the substrate , and on which a reproduction of the original document is formed , in response to the light exposure , through a reaction of ink particles of the color which corresponds to the wavelength of the light reflected from the original document . the color copier further includes a lightproof film case for storing the photosensitive film ; an image forming lens for forming an image of the original document on the photosensitive film by focusing the reflected light ; a copy paper feeder for feeding a copy paper ; a fixer for fixing the image formed on the photosensitive film on the copy paper ; a separation claw which separates the photosensitive film from the copy paper after the fixing of the image ; and a film take - up shaft for winding thereon the photosensitive film . the film take - up shaft is located downstream from the separation claw in the direction of paper transport , and is formed with an insertion slot for inserting a leading edge of the photosensitive film .