Browse Prior Art Database

Dark Charge Correction for Copier Reduction Mode

IP.com Disclosure Number: IPCOM000049665D
Original Publication Date: 1982-Jul-01
Included in the Prior Art Database: 2005-Feb-09

Publishing Venue

IBM

Related People

Authors:
Bierschbach, JE [+details]

Abstract

In a copier using the electrophotography process and having various reduction or magnification modes, it is desirable to adjust the process for each mode to compensate for the variation in illumination. As the copies are reduced in size, the amount of illumination to which the photoconductor is exposed decreases. To maintain quality copies, the dark charge voltage applied to the photoconductor should also decrease.