Browse Prior Art Database

HALF-CYCLE DEVELOPMENT SYSTEM

IP.com Disclosure Number: IPCOM000024908D
Original Publication Date: 1982-Oct-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 85K

Publishing Venue

Xerox Disclosure Journal

Abstract

In certain magnetic systems (as well as other reprographic systems), it is desirable to be able to selectively turn on and off a development subsystem for part of a process cycle. Referring to the accompanying figure, for example, it is desirable to have the developer 1 develop the latent image on the receptor or drum 2 every other revolution of that receptor. Thus, during a first full rotation of the image receptor 2 an image is formed on that receptor by an imaging substation (not shown). On the next rotation of the receptor 2, the developer 1 forms a visible image by bringing toner or developer material 3 into contact with the image on the receptor 2. OR the next rotation of the receptor, the next image is formed and the developer 1 is rendered inoperative so that no development takes place.

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XEROX DISCLOSURE JOURNAL

HALF-CYCLE DEVELOPMENT SYSTEM Herbert L. Bresnick

Proposed Classification
U.S. C1. 346/74.1 Int. C1. Gold 15/06

In certain magnetic systems (as well as other reprographic systems), it is desirable to be able to selectively turn on and off a development subsystem for part of a process cycle. Referring to the accompanying figure, for example, it is desirable to have the developer 1 develop the latent image on the receptor or drum 2 every other revolution of that receptor. Thus, during a first full rotation of the image receptor 2 an image is formed on that receptor by an imaging substation (not shown). On the next rotation of the receptor 2, the developer 1 forms a visible image by bringing toner or developer material 3 into contact with the image on the receptor 2. OR the next rotation of the receptor, the next image is formed and the developer 1 is rendered inoperative so that no development takes place.

Volume 7 Number 5 September/October 1982 31 1

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HALF-CYCLE DEVELOPMENT SYSTEM (Cont'd)

The disclosed system is for a magnetic fountain development system in a magnetographic printer application, but is applicable to other reprographic sys- tems. The developer 1 comprises a half cylinder 4 which carries developer material 3. For each revolution of the receptor 2, the developer cylinder 4 rotates one-half a revolution about its center axis. In this way, the developer transm...