Patent ID: 8548351
Filing Date: 2013-10-01
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a casing; a plurality of photosensitive drums arranged parallel to each other in the casing, each of the plurality of photosensitive drums having an axis extending in an axial direction; a plurality of developing units each of which corresponds to each of the plurality of photosensitive drums, each of the plurality of developing units having a first container configured to accommodate toner, the plurality of developing units including a first developing unit and second developing units, a belt disposed in confrontation with the plurality of photosensitive drums; a collecting member in contact with the belt to collect waste toner remaining on the belt; a first conveying member configured to convey the waste toner collected by the collecting member along the axial direction; a second conveying member configured to convey the waste toner conveyed by the first conveying member along an orthogonal direction orthogonal to the axial direction; and a third conveying member configured to convey the waste toner conveyed by the second conveying member along the axial direction, wherein the first developing unit further comprises a second container configured to store the waste toner conveyed by the third conveying member, each of the second developing units does not comprise a second container configured to store the waste toner conveyed by the third conveying member, and the first developing unit is positioned closer to the collecting member than the second developing units, and wherein the second conveying unit is positioned on one end side of the plurality of photosensitive drums in the axial direction, the second conveying member being overlapped with the second container when viewed in the axial direction.