Image forming apparatus, cartridge, image formation system, and storage medium for cartridge

摘要

An image forming apparatus to which a process cartridge is detachably mountable, the process cartridge including an image bearing member, a charging member for electrically charging the image bearing member, and a memory medium having a memory area for storing information relating to a charging current for a non-image-formation period; the apparatus including a control unit for switching a voltage to be applied to the charging member in accordance with the information stored in the memory medium.