Patent ID: 8103188

Claim:
An image forming apparatus comprising: an image transfer unit that transfers a reversal image based on a scanned document image onto an image bearing member as a toner image; a transfer-unit supporting unit; a transfer roller that is supported by the transfer-unit supporting unit and comes into contact with the image bearing member and transfers the toner image onto a recording medium; a transfer-roller housing unit that houses the transfer roller; a lubricant applying brush that comes into contact with the transfer roller and applies a lubricant to the transfer roller; a solid lubricant that supplies the lubricant to the lubricant applying brush; a driving gear that transmits rotational force from the outside to the lubricant applying brush; and a lubricant unit that supports at least the lubricant applying brush, the solid lubricant and the driving gear in an integral state and is formed to be detachably attachable to the transfer-unit supporting unit.