Abstract: A contact exposure unit for the exposure of image-containing sheet material includes a housing having upper and lower portions separated by a transverse slot extending from an infeed end to an exit end of the housing, the lower portion provided with a plurality of driven rolls, each with a segmented foam covering, the upper portion provided with a like plurality of upper idler rolls having a segmented foam covering, the segments of corresponding upper and lower rolls being in opposite relationship with each other, the upper rolls being driven principally by contact with the lower rolls, and being adapted for low friction vertical sliding action in the upper portion of the housing, and a light unit having an aperture lamp opposed by a foam covered lower roller for the exposure of sheet materials fed through the slot and pressed between the light unit and the covered roll.

Abstract: A modular desktop paper scoring apparatus and method for using the scoring apparatus for binding papers is disclosed. The scoring apparatus comprises a pair of rollers, one being of a resilient material, and the other roller being of a hardened material with a peripheral projection or rib positioned in its midsection. On feeding a strip of paper through the rollers, the rib scores the paper, which may then be folded along the score line and used to bind papers.