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A METHOD FOR CROSS PRODUCT CARRY OVER TESTING USING A VIBRATING SAMPLE MAGNETOMETER

IP.com Disclosure Number: IPCOM000027161D
Original Publication Date: 1995-Jun-30
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is a Cross Product Carry Over (CPCO) testing method using a vibrating sample magnetometer (VSM) to qualitatively determine the presence of contamination in a magnetic toner product. Since the VSM measures the magnitude of a magnetic field present in the toner, the proposed method offers time and cost saving improvements over conventional CPCO methods. It applies to the start-up of a toner manufacturing process and is particularly useful after a product change over.