Microfiche duplicator

Claim 1

A duplicator for individual microfiche which comprises: a housing; a first entrance in said housing adapted to receive a sandwich made up of an individual original microfiche and a sheet of copy film; an exposure station within said housing adapted to expose said copy film to actinic radiation through said original film to form a latent image in said copy film corresponding to said original film as said sandwich is transported therethrough. an exposed film tray at least partially outside of said housing for receiving said sandwich from said exposure station; a second entrance in said housing for receiving a sheet of exposed copy film; a development station within said housing adapted to develop a visible image on said exposed copy film corresponding to said latent image as said copy film is transported therethrough; a developed film tray at least partially outside of said housing for receiving said copy film from said development station; and a single endless belt transport means adapted to transport said sandwich from said first opening, through said exposure station to said exposed film tray and to transport said copy film from said second opening through said development station to said developed film tray, said single endless belt transport means comprising a plurality of rollers and a wide belt entrained over said plurality of rollers, one of said rollers being adjustable and including roller adjustment means to maintain belt tracking and tension; said roller adjustment means comprising a. a first adjustment means for moving one end of said adjustable roller in a plane containing the axis of said roller and substantially parallel to the plane of the belt as it comes in to the adJustable roller, said adjustable roller pivotable by said first adjustment means about a point lying at the end of said adjustable roller opposite to the movable end; b. a second adjustment means for pivoting said adjustable roller in a plane containing the axis of said roller and substantially perpendicular to the plane of said first adjustment, said second adjustment means pivoting said adjustable roller about a point lying substantially in the plane of the incoming belt adjacent to the center of the adjustable roller; and c. tensioning means urging said adjustable roller toward the belt to maintain the belt in tension, said adjustable roller located immediately adjacent to said first opening and engaging the belt over substantially one-half of the roller circumference.