Patent ID: 8879947
Filing Date: 2014-11-04
Classification: G03G

Abstract:
1. An image forming apparatus configured to form an image by using a plurality of photosensitive drums, the image forming apparatus comprising: an apparatus main body; a first roller and a second roller spaced from the first roller and urged in a direction separating from the first roller; an endless belt which is provided in the apparatus main body and is wound around the first roller and the second roller; a drawing member which is configured to support a plurality of cartridges, and is movable among a mounting position at which the drawing member is mounted in the apparatus main body and the plurality of photosensitive drums oppose the endless belt, a separation position which is located at an inner side of the apparatus main body and at which the photosensitive drums are more spaced from the endless belt than at the mounting position, and an outer position which is located at an outer side of the apparatus main body; and a cleaning unit including: wherein the cleaning unit includes a first housing having the collecting member and a second housing having the accommodating part, wherein the first housing is provided to the apparatus main body, the first housing including a first opening and a first opening and closing member which is configured to open and close the first opening, wherein the second housing is provided to the drawing member and includes a second opening and a second opening and closing member which is configured to open and close the second opening, the second opening opposing the first opening to allow the first housing and the second housing to communicate with each other when the drawing member is located at the mounting position, and wherein the first opening and closing member and the second opening and closing member are configured to close the first opening and the second opening while the drawing member is moved from the mounting position to the separation position, and configured to open the first opening and the second opening while the drawing member is moved from the separation position to the mounting position.