Patent ID: 9727002
Date: 2017-08-08
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: an image bearing member configured to bear a developer image; a charging member configured to contact the image bearing member; a storage unit configured to store information about the charging member; and a developing unit configured to supply developer having a predetermined polarity to the image bearing member to form a developer image, and to collect developer remaining on the image bearing member after the developer image is transferred, a cartridge configured to be detachable from the image forming apparatus and including at least the image bearing member, the charging member and the storage unit; wherein, in a case where the charging member is new, a supply operation for supplying developer or lubricant is performed prior to an image forming operation in such a manner that the developer or the lubricant having a polarity different from the predetermined polarity adheres to a surface of the charging member, and wherein, in a case where there is no usage history of the charging member, the supply operation is performed.