A composite ophthalmic lens having a thin functional first molded portion that is fused andor re-molded during formation of a second, transparent molded portion. The system comprises: an ink reservoir for storing ink; an ink conduit providing fluid communication between the ink reservoir and the printhead; a pressure device for positively pressurizing the ink reservoir; and a valve in the ink conduit for controlling a supply of ink to the printhead. The retroreflective layer is retroreflective to the light coming from the front of the sign and is transmissive to the light from the interior of the sign. Once the obstructive device is anchored in place, the segment can be aspirated through the device. In either case, thin-film wiring can be used to interconnect the shift register and the switching elements, and the need for an array of large transistors to feed driving current to the switching elements is eliminated, reducing the size and cost of the combined semiconductor device, which can be advantageously used in the optical head of an electrophotographic printer. Preferably, the cocoa powder is provided as part of a foodstuff or confectionary product, or as a cosmetic composition or supplement, The skin benefit preferably comprises a reduction in the degree of wrinkling of the skin andor an improvement in the smoothness of the skin.