DUPLEX/SIMPLEX PRECOLLATION COPYING SYSTEM

摘要

DUPIIEX/SIMPLEX PRECOLLATION COPYING SYSTEM A copying system for copying either duplex or simplex original document sets as pre-collated copy sets, utilizing a document handling system providing selective automatic recirculative pre-collation copying of either duplex or simplex document sheets, with selective automatic sheet inversion. Also described is an integral sheet stack normal force/iogger unit for continuous and simultaneous top loading and bottom feeding from either opposite or common directions from a stack of document or copy sheets.