Browse Prior Art Database

ACTIVE DEVELOPER CROSSMIX

IP.com Disclosure Number: IPCOM000023146D
Original Publication Date: 1976-Dec-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 245K

Publishing Venue

Xerox Disclosure Journal

Abstract

In xerographic development systems, it is desirable to maintain a properly mixed and blended supply of devel- oper for use in the development process. For this purpose, an active crossmixer may be located in the path of denuded developer returning from the development zone and in the path of toner being added to the system. The active mixer acts to uniformly distribute the returning developer and fresh toner across the developer supply sump. The active crossmixer may comprise a plurality of flat vanes 102 mounted above a developer sump on a rotatable shaft 101 such that during rotation of the shaft opposite flat sides of the vanes are successively oriented to face the flow of developer at an angle thereto. In this manner, developer is directed alternately toward opposite sides 126, 127 of the direction of flow of incoming developer 125. Reciprocating movement of the vanes may also be employed to drive the vanes alternately between their extreme positions.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

ACTIVE DEVELOPER CROSSMIX
ProposedAlan J. Liebman Classification

U.S. Cl. 118/637
Int. CL B05b 5/02

In xerographic development systems, it is desirable to
maintain a properly mixed and blended supply of devel-
oper for use in the development process. For this
purpose, an active crossmixer may be located in the path
of denuded developer returning from the development zone
and in the path of toner being added to the system. The
active mixer acts to uniformly distribute the returning
developer and fresh toner across the developer supply
sump. The active crossmixer may comprise a plurality of
flat vanes 102 mounted above a developer sump on a
rotatable shaft 101 such that during rotation of the
shaft opposite flat sides of the vanes are successively
oriented to face the flow of developer at an angle thereto.
In this manner, developer is directed alternately toward
opposite sides 126, 127 of the direction of flow of
incoming developer 125. Reciprocating movement of the
vanes may also be employed to drive the vanes alternately
between their extreme positions.

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/2/

/27

Volume 1 Numbers 11/12 November/December 1976 -J

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26 XEROX DISCLOSURE JOURNAL

Volume 1 Numbers 11/12 November/December 1976

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