Image forming apparatus with charging member cleaning capabilities

An image forming apparatus comprising:

• an image bearing member;
• a charging member for contacting a peripheral surface of said image bearing member to electrically charge the peripheral surface;
• a first developing device for forming a first developed image on the peripheral surface of said image bearing member charged by said charging member;
• a second developing device for forming a second developed image on the peripheral surface,
• wherein said first developing device forms a first developed image to be transferred onto a first transfer material, and said second developing device forms a second developed image to be formed on a second transfer material, and wherein when a developed image is formed continuously on the first transfer material and the second transfer material,
• wherein when the combined image is being formed, said charging member is cleaned by Transferring, by an electric field, material deposited on said charging member to a region between said first developed image and said second developed image on the peripheral surface of said image bearing member, and
• said first developed image and said second developed image are not formed in the region.