作者: Richard F. Lang
DOI:
关键词: Engineering drawing 、 Drum 、 Engineering 、 EXPOSE 、 Duplex (telecommunications)
摘要: A duplex copying machine is provided wherein an original document, having images on both sides, located between a transparent rotatable drum and conveyor belts automatically transported thereby to first image station expose photoconductor, by lamps external the drum, side of document engaged belts. Thereafter, second surrounded drum.