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DOCUMENT DRUM Disclosure Number: IPCOM000024633D
Original Publication Date: 1981-Jun-30
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal


With slit exposure type xerographic reproduction machines, it may be desirable to retain the document to be copied on a vacuum drum and rotate the drum past the exposure slit to expose the xerographic drum. With any type of vacuum document handler, the vacuum holes may "print" and show up on the final copy. This occurs either by the holes being optically visible through the translucent document or around the outside of the document when the document is smaller than the vacuum belt or drum.