Exposure device

An exposure device for use in an image recording apparatus for exposing a photosensitive recording medium to light so as to form a latent image thereon, said medium having a first and second surfaces, said device comprising:

• a sheet storage cartridge detachably provided to said image recording apparatus, said cartridge being formed of a light-shielding material for storing therein said photosensitive recording medium and having an exposure zone on an outer surface thereof when installed in said recording apparatus;
• exposure means which emits an original image carrying light directing in alignment with said outer surface for exposing said first surface of said photosensitive medium to light in said exposure zone to form said latent image on said photosensitive medium;
• sheet feeding means driven in timed relation with an exposure for pulling said photosensitive recording medium from said sheet cartridge and positioning said medium on said outer surface;
• and,
• a color-tone controlling means fixed to said outer surface and having a reflectivity distribution for exposing said second surface of said photosensitive recording medium for correcting exposure amount with respect to said photosensitive medium with at least one of specific light having at least one of selected wavelengths.