Fitzpatrick, Cella, Harper & Scinto
Ozone filter used in electrophotographic apparatus including catalyst of CuO, MnO.sub.2, and a water-soluble polymer
 An electrophotographic apapratus of the type in which a photosensitive member is charged by atmospheric discharge, is equipped with an air filter including a substrate and a catalyst layer formed on the substrate including at least three components of CuO, MnO.sub.2 and a water-soluble polymer. The catalyst layer shows a reactivity with NOx and the water-soluble polymer traps the resultant HNO.sub.3 while retaining a high ozone removing efficiency, whereby the apparatus can show excellent electrophotographic performances even after successive use while preventing deterioration due to ozone, NOx and HNO.sub.3 produced by the atmospheric discharge. 
Canon Kabushiki Kaisha
G
G03G
inventional
Naoto Koji Teigo Kiyoshi Noriko
Fujimura Yamazaki Sakakibara Sakai Hirayama