An image forming apparatus includes at least two image bearing members, a
transferring unit that makes a physical contact with both the image
bearing members, and a lubricant applying unit that applies lubricant on
the surface of the image bearing members. Images can be selectively
formed on any one of the image bearing member. Although an image is being
formed on one image bearing member, the transferring is made to come in
physical contact with the other image bearing member.