CHARGING DEVICE, IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND ION GENERATING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a charging device that can perform electron emission at a level where no discharge products are generated so as to prevent the hazard of an image carrier, reduce the deterioration of electron emitting material, and stabilize the quality of an electron emitting element.SOLUTION: A charging device for an image forming apparatus includes electron emitting means formed of a magnesium-oxygen simultaneous doping n-type hexagonal crystal boron nitride thin film deposited on a plate-like conductive substrate, where the magnesium-oxygen simultaneous doping n-type hexagonal crystal bron nitride thin film has magnesium-oxygen simultaneous doping n-type hexagonal crystal bron nitride doped so that the concentration of oxygen exceeds the concentration of magnesium.