IMAGE FORMING APPARATUS

The invention provides an image forming apparatus capable of avoiding increase of parts and large size of the apparatus, and preventing disperse toner in a developing device from leaking out. The image forming apparatus according to an aspect of the present disclosure includes a toner conveyance portion, a vent hole portion, an air suction portion, and a filter portion. The toner conveyance portion forms a toner conveyance passage between a developing device and a collection container such that toner discharged from the developing device is conveyed in the toner conveyance passage and collected in the collection container. The vent hole portion is formed in the toner conveyance portion and allows inside and outside of the toner conveyance portion to communicate with each other such that air can be ventilated between the inside and the outside of the toner conveyance portion. The air suction portion sucks the air inside the toner conveyance portion via the vent hole portion. The filter portion is disposed on the vent hole portion and traps toner contained in the air sucked by the air suction portion.