Browse Prior Art Database

REMOVAL OF FOREIGN PARTICLES FROM ELECTROPHORETIC IMAGING SYSTEMS

IP.com Disclosure Number: IPCOM000023734D
Original Publication Date: 1978-Dec-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 232K

Publishing Venue

Xerox Disclosure Journal

Abstract

Undesirable foreign particles can become attached to the electrophoretic imaging roll surface in an electrophoretic imaging system, and these particles disturb the uniform geometry of the blocking-web-inkconductive web sandwich and cause image defects. This sandwich is held away from the image roll by these particles, which thereby results in a lower field producing low density spots in the image. To avoid this, there is used a biased roller to pick off these particles and deposit them on the portion of the blocking web downstream of the image roll.

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XEROX DISCLOSURE JOURNAL

REMOVAL OF FOREIGN PARTICLES Proposed Classification
FROM ELECTROPHORETIC IMAGING U.S. Cl. 96/1.2
SYSTEMS mt. Cl. G03g 5/12
David Hoesly

Undesirable foreign particles can become attached to the
electrophoretic imaging roll surface in an electrophoretic
imaging system, and these particles disturb the uniform
geometry of the blocking~web~inkconductive web sandwich and
cause image defects. This sandwich is held away from the
image roll by these particles, which thereby results in a
lower field producing low density spots in the image. To
avoid this, there is used a biased roller to pick off these
particles and deposit them on the portion of the blocking web
downstream of the image roll.

The biased roll surface can be constructed from numerous
materials including conductive rubber which will readily
accept the undesirable particles. While the non~imageportion
of the blocking web is passing over the biased roll the web
potential will be lower than that of the biased roll, thus the
particles will remain on the bias roll; however, while the
image portion passes, its potential due to exit breakdown will
be higher than that of the biased roll and the undesirable
particles will be removed and carried away on the spent
blocking web.

Volume 3 Number 6 November/December 1978 383

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                 XEROX DISCLOSURE JOURNAL
384 Volume 3 Number 6 November/December 1978

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