Patent ID: 8055152

Claim:
An image forming device for forming an image on a sheet with a plurality of process cartridges comprising: a casing formed with an opening, the plurality of process cartridges being detachable from the casing; a movable member detachably supporting the plurality of process cartridges and linearly movable through the opening between a mounting position and an exchangeable position, the mounting position being inside the casing and corresponding to an image forming position where the plurality of process cartridges performs image formation on a sheet, and in the exchangeable position all process cartridges being detachable from and attachable to the movable member; a retraction unit that retracts the movable member from the exchangeable position to a retracting position providing an open state of the opening for accessing to a jammed sheet inside the casing through the opening; and, an engagement structure that makes engagement of the movable member with the casing to maintain the movable member at the retracting position.