Patent ID: 8355652

Claim:
An image forming apparatus comprising: an image bearing member on which is formed an electrostatic image; a plurality of development cartridges each including a developer bearing member configured to bear a developer for developing the electrostatic image and a developer container configured to accommodate the developer; a rotary, to which the plurality of development cartridges are detachably attached, configured to rotate and move the attached development cartridges toward a development position where the electrostatic image is developed; an opening defined in a main body of the image forming apparatus and allowing the development cartridge to pass therethrough for attachment and detachment to and from the rotary; and an indicator provided on a second development cartridge arranged adjacent to a first development cartridge passing through the opening and detached from the rotary being stopped, wherein the indicator indicates an attachment method, an attachment procedure, or a handling method usable to attach the first development cartridge to the rotary, and wherein the indicator is located at such a position on the second development cartridge as to be visible from outside of the main body via the opening with the first development cartridge detached.