Browse Prior Art Database

Photoconductor/ Cleaning Blade Wear Simulator

IP.com Disclosure Number: IPCOM000048735D
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Farrow, MM: AUTHOR [+3]

Abstract

Accelerated testing of photoconductor wear is obtained by fabricating abrasive wheels from materials present in the photoconductor machine operation environment. The process is useful for testing the wear resistance of photoconductors and photoconductor overcoats used in typical xerographic copiers, printers and the like.

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Photoconductor/ Cleaning Blade Wear Simulator

Accelerated testing of photoconductor wear is obtained by fabricating abrasive wheels from materials present in the photoconductor machine operation environment. The process is useful for testing the wear resistance of photoconductors and photoconductor overcoats used in typical xerographic copiers, printers and the like.

Life predictions for photoconductors and photoconductor overcoats by continuous use of these elements in the normal electrophotographic process is generally too time-consuming. It has been found that most photoconductor and photoconductor overcoat wear occurs at the cleaning blade, which is typically polyurethane, as it scrapes the photoconductor surface to remove loose toner, contaminants, paper dust and the like.

In accordance with the present test procedure, wheels of polyurethane filled with the various materials that simulate the abrasive agents causing photoconductor and/or overcoat wear are constructed. A typical example is a
12.5 mm thick wheel of 51 mm diameter which is mounted on a conventional abrasion test unit, such as a Taber Abraser, Model 503. These wheels contain materials common to the electrophotographic process as it is carried out in the particular copier environment, including toner, carrier, paper dust and the like.

These materials are placed individually or concurrently in a matrix of polyurethane material similar to the formulation used in the manufacture of the cleaning blad...