Patent ID: 8867953

Claim:
An image forming apparatus comprising: an image forming section that forms an image with toner; a housing that houses the image forming section; and a toner collection mechanism that includes a suction unit that sucks the toner along with air, the toner leaving the image forming section and flying, and a separation unit that separates the toner from air, the toner being sucked by the suction unit, the separation unit of the toner collection mechanism including a separator that collects the toner and allows air to pass through the separator, a casing that houses the separator and has an upper side and an opening that has an edge and a lower portion, the toner and air flowing through the opening, and a joining unit that is disposed along the edge of the opening and joins the casing and the housing to each other, wherein the joining unit projects beyond the edge of the opening at least in the lower portion of the opening toward the upper side of the casing, thereby forming a space that allows the toner to be trapped in the space.