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TRANSFER APPARATUS

IP.com Disclosure Number: IPCOM000023240D
Original Publication Date: 1977-Feb-28
Included in the Prior Art Database: 2004-Mar-29

Publishing Venue

Xerox Disclosure Journal

Abstract

In a copying apparatus in which an image of charged parti-cles of imaging material is electrostatically transferred from the initial imaging surface 12, here the xerographic drum 10, to a copy sheet 34. The copy sheet 34 is positive-ly retained on a vacuum belt 38A in its passage through the transfer area D, by vacuum applied to a vacuum chamber 70 communicating with the rear of the belt while the copy sheet is carried on the front of the belt. Transfer is accompli-shed by a transfer corotron 72 applying transfer charges to the rear of the belt. Hole print-out, i.e., transfer dis-turbance due to the vacuum apertures 40 in the belt, is prevented yet desirably large clogging-resistant vacuum apertures and a desirably relatively thick belt can be utilized by making the belt of an electrically relaxable material having a resistivity of between approximately