Patent ID: 7894758

Claim:
An image forming apparatus, comprising: at least first and second image forming devices, the first image forming device including a first photosensitive member, a first charging device to charge a surface of the first photosensitive member, and a first lubricant supplying device to supply a first lubricant to the surface of the first photosensitive member, the second image forming device including a second photosensitive member, a second charging device to charge a surface of the second photosensitive member, and a second lubricant supplying device to supply a second lubricant to the surface of the second photosensitive member, wherein the first charging device has a different constitution from a constitution of the second charging device, and the first lubricant supplying device has a different constitution from a constitution of the second lubricant supplying device, wherein the first and second image forming devices further include first and second cleaning members, respectively, and wherein the first lubricant supplying device is positioned upstream of the first cleaning member relative to a rotating direction of the first photosensitive member, and the second lubricant supplying device is positioned downstream of the second cleaning member relative to a rotating direction of the second photosensitive member.