Image forming apparatus

An image forming apparatus, comprising:

• an image bearing member for bearing a latent image;
• a toner carrying member for supplying toner to said image bearing member to visualize the latent image;
• a rotatable toner supply member, contacted to said toner carrying member, for supplying the toner to the toner carrying member, said toner supply member including a surface foam layer;
• a voltage applying device for applying voltages to said toner carrying member and said toner supply member;
• a controller for controlling said voltage applying device such that A and B have a polarity which is the same as a regular charging polarity of the toner,
• where
• A=Vs2−Vd2,
• B=(Vs2−Vd2)−(Vs1−Vd1),
• Vd1 is a voltage applied to said toner carrying member by said voltage applying device during a period in which the latent image is visualized,
• Vs1 is a voltage applied to said toner supplying member during the period,
• vd2 is a voltage applied to said toner carrying member by said voltage applying device during at least a part of a period which is after application of the voltage Vd1 and before stoppage of rotation of said toner supplying member, and
• Vs2 is a voltage applied to said toner supplying member during said at least the part of the period.