Patent ID: 7962065

Claim:
An image forming apparatus comprising: a main body including a body frame and a gear shaft, the body frame defining an installation space therein and the gear shaft extending from the body frame into the installation space; an image forming device configured to form an image on a recording medium, the image forming device including a unit that is disposed in the installation space and configured to be attached to and removed from the body frame, the unit including: a support portion configured to engage the gear shaft when the unit is attached to the body frame and to disengage from the gear shaft when the unit is removed from the body frame; a rotating member configured to rotate upon receipt of a driving force; and a unit-side gear configured to rotate together with the rotating member; and a first intermediate gear configured to transmit the driving force to the unit-side gear, the first intermediate gear configured to be attached to and removed from the gear shaft in the installation space when the unit is removed from the main body.