There are provided an image bearing member on which an electrostatic image is formed, a development unit that is detachably attachable relative to a main body of the apparatus and that develops the electrostatic image formed on the image bearing member, using developer, a positioning unit that positions the development unit relative to the image bearing member, a transfer unit that transfers a developer image formed on the image bearing member onto a recording medium at a transfer position, and a conveyance guide member that guides the recording medium which is being conveyed toward the transfer position. The conveyance guide member is made of material which is greater in rigidity than a frame member of the development unit, and is disposed on the frame member of the development unit.