An imaging cartridge includes a photoconductive unit including a photoconductor on which an elastic latent image is formed; a development unit including a development roller that supplies toner to the photoconductor to develop the toner and a gap maintaining member that constrains an approach distance of the development roller with respect to the photoconductor; a first position determining portion provided in the development unit; a lateral bracket that is fixed to a side portion of the photoconductive unit and has a second position determining portion that guides the first position determining portion so as to movably support the development unit; and an elastic member that applies to the development unit an elastic force in a direction in which the development roller approaches the photoconductive unit.