A lubricant applying unit includes a lubricant applying member, and a leveling member for use in an image forming apparatus having a photosensitive member. The lubricant applying member applies lubricant on a surface of the photosensitive member, and the leveling member levels off the lubricant on the surface of the photosensitive member. The lubricant applying unit applies the lubricant with a predetermined amount on the surface of the photosensitive member. The photosensitive member includes polyarylate resin in a surface layer of the photosensitive member.