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SERIES CAPACITANCE DEVICE FOR MONITORING EMULSION AGGREGATED TONER AND PROCESSES

IP.com Disclosure Number: IPCOM000027786D
Original Publication Date: 1999-Aug-31
Included in the Prior Art Database: 2004-Apr-09
Document File: 3 page(s) / 70K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is the use of a series capacitance device for monitoring Emulsion Aggregated (EA) toner and processes. One of the key steps in the EA toner manufacturing process is to wash the EA toner to remove residual surfactants. It has been observed that suitably washed EA toner particles then dispersed in an insulating hydrocarbon fluid would give close to zero charge density as measured by the series capacitance device. On the contrary, the unwashed EA toner shows an extremely high charge density. This device may be used as an offline quality control tool for manufacturing EA toner.

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XEROX DISCLOSURE JOURNAL

SERIES CAPACITANCE DEVICE FOR MONITORING EMULSION AGGREGATED TONER AND PROCESSES
David H. Pan
Joseph Mort

Proposed Classification
U. S. C1. 399/222 Int. C1. G03g 15/06

Disclosed is the use of a series capacitance device for monitoring Emulsion Aggregated (EA) toner and processes. One of the key steps in the EA toner manufacturing process is to wash the EA toner to remove residual surfactants. It has been observed that suitably washed EA toner particles then dispersed in an insulating hydrocarbon fluid would give close to zero charge density as measured by the series capacitance device. On the contrary, the unwashed EA toner shows an extremely high charge density. This device may be used as an offline quality control tool for manufacturing EA toner.

DP5870

XEROX DISCLOSURE JOURNAL - Vol. 24, No. 4 JulyIAugust 1999 191

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192 XEROX DISCLOSURE JOURNAL - Vol. 24, No. 4 July/August 1999

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XEROX DISCLOSURE JOURNAL

TONER BOTTLE CLEANING PROCESS

Proposed Classification Ivor R. Rawlings

U. S. C1. 399/259 Int. C1. G03g 15/08

Disclosed is a process for cleaning toner bottles before they are refilled. A given weight of low quality carrier is dispensed into returned bottles. The bottles are agitated to develop a triboelectric charge that attracts residual toner particles adhering to the interior walls of the empty bottles....