Browse Prior Art Database

PHOTORECEPTOR CLEANER WITH MAGNETIC ROLLNACUUM AIR KNIFE

IP.com Disclosure Number: IPCOM000027178D
Original Publication Date: 1995-Aug-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 87K

Publishing Venue

Xerox Disclosure Journal

Abstract

A system and method to remove undesired particles such as grits and carrier beads from a photoreceptor combines a vacuum air knife with a magnetic roll (fixed magnet with a rotating sleeve) to effectively remove such particles

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR CLEANER WITH MAGNETIC ROLLNACUUM AIR KNIFE
Susan 3. Zoltner

Proposed Classification
U.S. C1.355/297 Int. C1. G03G 21/00

FIG. 7

XEROX DISCLOSURE JOURNAL - VOI. 20, NO. 4 July/August 1995 333

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PHOTORECEPTOR CLEANER WITH MAGNETIC ROLL/VACUUM AIR KNIFE (Cont'd)

A system and method to remove undesired particles such as grits and carrier beads from a photoreceptor combines a vacuum air knife with a magnetic roll (fixed magnet with a rotating sleeve) to effectively remove such particles

Figure a high velocity vacuum air knife may be effectively used to clean residual toner from photoreceptors of electrophotographic printing and copying machines. A flow of air is directed across the surface of the photoreceptor to dislodge and remove residual toner particles that remain on the photoreceptor surface after image transfer. A vacuum pipe may be used to draw air from a plenum so as to direct the desired air flow across the photoreceptor surface. The air knife mechanically disrupts residual toner deposits on the photoreceptor by a high velocity air flow. In some cases, the air flow alone may be sufficient as the cleaning mechanism when controlled by ductwork. When other conventional cleaning systems are employed in conjunction with the air knife, cleaning efficiency is greatly enhanced. For example, an AC bias added to a sleeve passing over a magnet can further enhance par...