Patent ID: 8457542

Claim:
An image forming apparatus, comprising: an apparatus main body; a processing unit arranged in the apparatus main body for performing an image forming process to form a toner image on a recording medium; a toner discharging portion arranged in the apparatus main body for discharging toner not used in the image forming process from the processing unit; a toner collecting portion, including a waste toner bottle for collecting the toner from the toner discharging portion and a lid member provided openably and closably with respect to the waste toner bottle, and being removably mountable into the apparatus main body; and an opening/closing mechanism provided in the apparatus main body for opening the lid member of the toner collecting portion when the toner collecting portion is mounted into the apparatus main body while closing the lid member when the toner collecting portion is removed from the apparatus main body; wherein: the lid member is set to an open state by rotating in a first direction and set to a closed state by rotating in a second direction opposite to the first direction; and the opening/closing mechanism includes: a first contact portion provided at the toner discharging portion for rotating the lid member in the first direction by coming into contact with the lid member when the toner collecting portion is mounted into the apparatus main body, and a second contact portion mounted in the apparatus main body for rotating the lid member in the second direction by coming into contact with the lid member when the toner collecting portion is removed from the apparatus main body.