a converter applique that fits onto and retrofits existing low priced plain paper electrostatic copiers is discussed herein . the applique of the present invention contains all of the additional elements needed to provide the full functionality of a plain paper facsimile transceiver . additionally , the applique of the present invention removably mounts on a plain paper copier and converts it to serve as a facsimile transceiver while preserving the functionality of the copier even when the applique is in place on the copier . further the applique of the present invention makes no electrical contact with the internal circuits of the copier , and only makes mechanical contact to the non - movable portions of the outer case of the copier where it is positioned precisely to align the laser beam in the applique with the photosensitive drum within the copier .