Patent ID: 8718514

Claim:
An image forming apparatus comprising: a main casing; a belt unit supported by the main casing and including an endless belt and a plurality of transfer members; a plurality of photosensitive drums arranged along the endless belt and disposed corresponding to the plurality of transfer members, electrostatic latent images being formable on each photosensitive drum; a plurality of developing devices disposed in one-to-one correspondence with the plurality of photosensitive drums, each developing device including: a developing roller configured to supply toner to a corresponding one of the plurality of photosensitive drums to develop the electrostatic latent images formed thereon; a toner accommodating chamber disposed below the developing roller and configured to accommodate toner therein; and an agitator disposed in the toner accommodating chamber and configured to rotate to agitate the toner accommodated in the toner accommodating chamber; and a pivot mechanism having a plurality of pivot shafts each of which is disposed below both the endless belt and a corresponding one of the plurality of photosensitive drums, the pivot mechanism being configured to pivot each of the plurality of developing devices relative to the corresponding one of the plurality of photosensitive drums about a corresponding one of the plurality of pivot shafts.