Browse Prior Art Database

SELF CALIBRATING PHOTORECEPTOR SCANNER

IP.com Disclosure Number: IPCOM000027054D
Original Publication Date: 1995-Feb-28
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

typically entails testing o P the finished photoreceptor in a scanner to determine The manufacturing of hotoreceptors for electrophotographic imaging the electrostatic characteristics of the product. To be able to conduct a valid test, calibrations are carried out manually on a daily basis on components in the scanners such as corotrons, light sources, and electrometers. This process can be time consuming, and may be carried out less frequently than might be desired because of time and manpower limitations. Manufacturing throughput is also reduced by the necessary calibration process. Further, the scanner components may drift between calibrations. The output of the scanner is used for manufacturing process adjustments and dispositioning, so any false readings occurring because of drift may result in incorrect process corrections and incorrect release or service of the product.