Patent ID: 8588648

Claim:
An image forming device comprising: a main casing defining an accommodation space; a holder member that is configured to be movable in a moving direction between an accommodated position in which the holder member is accommodated in the accommodation space and a pull-out position in which at least part of the holder member is outside the accommodation space; a plurality of image bearing members that are held by the holder member and that are juxtaposedly arrayed in the moving direction with intervals between neighboring image bearing members; a plurality of developing units that are held by the holder member in one to one correspondence with the plurality of image bearing members; a plurality of toner boxes that are detachably attachable to the holder member in one to one correspondence with the plurality of developing units, each toner box being detachably attachable to the holder member at the pull-out position, each toner box comprising: a toner container accommodating toner therein and formed with an opening through which toner in the toner container is to be supplied to the corresponding developing unit; and a shutter movable between an open position for opening the opening and a closed position for closing the opening; an operation member that is configured to be movable between a first position providing the closed position of the shutter and a second position providing the open position of the shutter; and a stop member provided in the main casing, the stop member configured to: prevent the holder member from moving to the accommodated position when the holder member is on its way to the accommodated position from the pull-out position while the operation member is at the first position, and permit the holder member to move to the accommodated position when the holder member is on its way to the accommodated position from the pull-out position while the operation member is at the second position.