Proceedings PaperMatching Photoreceptor Response To State-Of-The Art Exposure Sources
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The basic principle of electrophotographic non-impact printers is to expose a photoconductor by a light beam which is modulated by the information to be printed and to process the latent image in the same way as usually done in plain paper office copiers. Key components of non-impact printers to be matched are, therefore, light source and photoconductor. Currently used light sources and light shutters are gas and solid-state lasers, cathode ray tubes (CRT, OFT), light emitting diodes (LED), magneto-optical light shutters (LISA) , liquid crystal light shutters (LCS) , and electrooptical light shutters (PLZT-ceramics). Photoconductors are: selenium based materials (amorphous Se-based alloys, As2Se0, binder layers (mainly CdS), organic photoconductors (OPC), and amorphous silicon (a-Si).