An image forming apparatus (100) includes a main body (101), and a process cartridge (30) detachably disposed in the main body (101) and including an image bearing member (1) configured to bear an image on a surface thereof and rotate at a predetermined linear velocity, and a lubricant applying member (17a) disposed in contact with the image bearing member (1) and configured to apply a lubricant (17b) on the surface of the image bearing member (1) while rotating with the image bearing member (1), wherein the lubricant applying member (17a) includes a brush roller (17a) and is controlled to rotate at a linear velocity different from the predetermined linear velocity of the image bearing member (1) at a contact portion with the image bearing member (1) so that the lubricant applying member (17a) applies an amount of the lubricant (17b) smaller than an amount of lubricant used when the image bearing member (1) and the lubricant applying member (17a) rotate at an identical linear velocity.