Patent ID: 8280294

Claim:
A cleaning device comprising: a rotary member that rotates in contact with an image carrier and moves materials on a surface of the image carrier along a rotation direction of the rotary member; a scraping member that contacts with the rotary member to scrape the materials adhering onto the rotary member, the scraping member having a plurality of openings provided along an axial direction of the image carrier, through which the materials scraped by the scraping member pass to a collected material receiving portion; the collected material receiving portion that receives the materials passed through the openings; and a protrusion portion that is arranged between the openings and the contact portion of the rotary member and the scraping member, and protrudes toward an upstream side in a rotation direction of the rotary member from a reference surface, and is positioned on an upper side in the gravity direction of the contact portion of the rotary member and the scraping member, wherein the reference surface is a virtual surface that passes through a contact portion of the rotary member and the scraping member, is parallel to a gravity direction, and is disposed between a contact portion of the image carrier and the rotary member, and the collected material receiving portion.