Patent ID: 9367026
Filing Date: 2016-06-14
CPC Classification: G03G

Claim Text:
1. An image forming apparatus comprising: a casing including a first frame, a second frame, and a third frame of resin, the third frame being configured to support the first frame; a plurality of photosensitive drums configured to rotate about an axis line extending in an axial direction and juxtaposed at intervals in the casing, the casing defining one side and the other side in the axial direction, drive force for rotating the plurality of photosensitive drums being inputted to the one side of the plurality of photosensitive drums; a plurality of developing devices provided to correspond to the plurality of photosensitive drums and configured to supply developing agent to the corresponding photosensitive drums; and a support plate supporting a drive source configured to generate the drive force and a rotational member configured to transmit the drive force from the drive source to the one side of the plurality of photosensitive drums, the support plate being made of metal and supported on the third frame, wherein the first frame is made of metal and is configured to support the one side of each of the plurality of photosensitive drums, and the second frame is made of resin and is configured to support the other side of each of the plurality of photosensitive drums, wherein when projected in the axial direction, the first frame has a first projected surface and the third frame has a second projected surface in the axial direction, the first projected surface falling within the second projected surface as viewed in the axial direction.