Browse Prior Art Database

RANDOM PARTICLE MECHANISM AND APPARATUS

IP.com Disclosure Number: IPCOM000027387D
Original Publication Date: 1996-Aug-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 66K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is an apparatus to distribute a uniform layer of dirt or toner particles on a test substrate to enable testing substrate cleaning techniques by counting the dirt particle on the substrate before and after cleaning. The device is in effect a toner dirt generator useful for evaluating cleaning roll efficiency.

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XEROX DISCLOSURE JOURNAL

RANDOM PARTICLE MECHANISM AND APPARATUS U. S. CI. 430/059 Gina M. LaManna
Edward F. Grabowski
Gary W. Smallman
Terry L. Street
Francis J. Wieloch
Car10 A. Wisniewski
John A. Czerniawski
Gerald W. Kuhn

Proposed Classification

Int. C1. G03g 05/06

Disclosed is an apparatus to distribute a uniform layer of dirt or toner particles on a test substrate to enable testing substrate cleaning techniques by counting the dirt particle on the substrate before and after cleaning. The device is in effect a toner dirt generator useful for evaluating cleaning roll efficiency.

In order to randomly distribute particles of known size that can be used to assess the removal capabilities of web cleaners, specifically contact cleaning rolls, a random particle distribution tube was developed and consists of a tube which allows the particles to fall down a chamber and settle randomly on the surface of the material below. At the top of the tube, a small hole accommodates a plastic bottle to rest evenly and securely, insuring no particles are trapped beneath the ledge or become airborn. The plastic bottle is pliable enough to squeeze the particles from the bottle, where the particles travel through a small mesh screen. The screen is removable for cleaning and is located in the cap of the bottle. In this fashion, particles can be measured out and stored in different bottles for use with the cut-out cap and screen mounted in the distribution tube. Once the particles ar...