Patent ID: 8770686

Claim:
An image forming apparatus comprising: an image forming device to form an image on a surface of a recording material; a recording material passage through which the recording material is fed; a treatment liquid applicator including: a tray to contain treatment liquid; a first roller opposed to the recording material passage to apply the treatment liquid to the recording material fed through the recording material passage; and a second roller adjacent to the first roller to pick up the treatment liquid from the tray to supply the treatment liquid to the first roller; a liquid level inclination detector to detect whether a surface of the treatment liquid in the tray is inclined; a treatment liquid supplying device to supply the treatment liquid to the tray; and a controller connected with the liquid level inclination detector and the treatment liquid supplying device, wherein the controller stops the treatment liquid supplying device from supplying the treatment liquid when determining according to a detection result of the liquid level inclination detector that the surface of the treatment liquid in the tray is inclined in a predetermined amount or more, wherein the liquid level inclination detector includes liquid level sensors disposed at respective ends of the second roller in an axial direction of the second roller.