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A COMPACT SYSTEM FOR CROSSMIXING, LONGITUDINAL MIXING AND TRIBO-GENERATION

IP.com Disclosure Number: IPCOM000023704D
Original Publication Date: 1978-Dec-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

The figure shows a compact xerographic developer system in which the principal mixing mechanism is shear. Developer is introduced at location l- Crossmixing is performed by the two helically magnetized rollers 2 and 3, These rollers may be operated at synchronous or differential speed. Also, the rotational sense may be varied to suit the direction of approach of input developer stream, Preferably, the distan-eh8d-between these two rollers is slightly less than 2he - where h is the helical brush thickness and Ro is the radius of the roller, This requirement is necessary but not sufficient for triboelectrif-ication, Developer that has been crossmixed by rollers 2 and 3 falls into the region between the two differential speed