According to one embodiment, a method for cleaning including, scraping off, agitating, or capturing, in non-contact with a belt surface, a visualizing material present on the belt surface and fiber or powder different from the visualizing material, coming into contact with the belt surface and scraping off, agitating, or capturing the visualizing material present on the belt surface and the fiber or the powder different from the visualizing material, and being located in contact with the belt surface at predetermined pressure and scraping off the visualizing material present on the belt surface and the fiber or powder different from the visualizing material.