Patent ID: 7877033

Claim:
An image forming apparatus, comprising: a rotatable image bearing member; a charging member that charges the image bearing member; a developing device that develops an electrostatic latent image formed by exposure by means of toner; a transfer member that forms a transfer portion, thereby transferring a toner image on the image bearing member, to a transfer material, by applying transfer bias; a first toner charging member disposed on the lower stream side of the transfer portion and on the upper stream side of the charging member in a rotating direction of the image bearing member, thereby charging the toner on the image bearing member by applying voltage; wherein the developing device develops the electrostatic latent image and recovers the toner charged by the first toner charging member, the image forming apparatus further including: a first current detecting portion that detects a current value flowing through the first toner charging member; and a changing portion that changes a transfer condition according to a current value detected by the first current detecting portion.