Image forming apparatus

An image forming apparatus comprising:

• a rotatable image bearing member;
• a developing member configured to supply toner on a surface of the image bearing member in a developing region contacting the image bearing member and form a toner image;
• a transfer member configured to transfer the toner image to a transfer material from the image bearing member;
• an applying means configured to apply a voltage to the transfer member;
• a cleaning blade configured to clean the toner remaining on the image bearing member after transferring the toner image to the transfer material;
• and
• a controlling portion configured to execute an initial operation in which the image bearing member in a brand-new state is shifted to a printable state and an image forming operation in which the toner image is formed on the transfer material,
• wherein the controlling portion controls the applying means so as to apply a constant voltage to the transfer member in the initial operation different from that in the image forming operation, during a second period immediately before a first period for supplying the toner from the developing member to the image bearing member in the developing region, and controls the applying means so that the constant voltage applied to the transfer member in the second period has a normal charge polarity of the toner and becomes a voltage value which does not generate electrical discharge between the image bearing member and the transfer member.