CHARGING MEMBER, CHARGER, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

摘要

PURPOSE: To achieve direct injection charge with more evenness of charge and stable for a long term in a contact charger to directly inject an electric charge in a body to be charged and to obtain an image forming apparatus and a process cartridge without a fault due to an ozone product and a fault due to insufficient charge, with simple structure and at a low cost by the direct injection charge. CONSTITUTION: This charging member 2 forms the object 1 to be charged and a nip part n, transfers the object to be charged with difference of speed and charges the surface of the object to be charged by applying voltage to it, the charging member 2 is constituted of an elastic foam 2b and cell structure of the foam is semi-independent and semi-continuous air bubbles (the respective cells are connected with one another to some extent). In addition, a conductive grain m is held at least on the contact surface between the charging member 2 and the object 1 to be charged.