Browse Prior Art Database

MAGNETIC BRUSH LIQUID DEVELOPMENT

IP.com Disclosure Number: IPCOM000023444D
Original Publication Date: 1977-Oct-31
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 205K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a novel method for application of liquid devel-oper to a photoconductive surface bearing a latent electro-static image. According to this method, a "gravure" roller is formed magnetically utilizing a conventional magnetic brush developer system and preferably spherical carrier particles. The "gravure" roller is formed by selectively applying a field across the roller so as to cause the magnetic particles to adhere to its surface in a uniform pattern. The pattern is preferably essentially the same as that of a conventional gravure roller. Liquid developer may thereafter be doctored on the "gravure" roller in the conventional fashion and trans-ferred to a photoconductive surface bearing a latent electro-static image.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

MAGNETIC BRUSH LIQUID DEVELOPMENT
S.W, Volkers

Proposed Classification
U.S. Cl. 427/15
mt. Cl. B05d 1/04

Disclosed is a novel method for application of liquid devel-
oper to a photoconductive surface bearing a latent electro-
static image. According to this method, a "gravure" roller is
formed magnetically utilizing a conventional magnetic brush
developer system and preferably spherical carrier particles.
The "gravure" roller is formed by selectively applying a field
across the roller so as to cause the magnetic particles to
adhere to its surface in a uniform pattern. The pattern is
preferably essentially the same as that of a conventional
gravure roller. Liquid developer may thereafter be doctored
on the "gravure" roller in the conventional fashion and trans-
ferred to a photoconductive surface bearing a latent electro-
static image.

Volume 2 Number 5 September/October 1977 121

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Page 2 of 2

                 XEROX DISCLOSURE JOURNAL
122 Volume 2 Number 5 September/October 1977

[This page contains 1 picture or other non-text object]