Provided is a waste developer container to be fixed to an image forming device including a developing device and a waste developer amount detection unit for obtaining information on an amount of accumulated waste developer discharged from the developing device, wherein the developing device uses toner image carrier holding a toner image and two-component developer to form a toner image, the waste developer amount detection unit obtains the information on the accumulated amount by emission and reception of light, and the waste developer container includes: a container space for containing waste developer discharged; a detection window for passing light that is emitted from the waste developer amount detection unit, passes the container space, and is incident again to the waste developer amount detection unit; and a magnet provided to a position where a magnetic force is applied to the detection window and light passing the detection window is not shut.

Provided is a waste developer container to be fixed to an image forming device including a developing device and a waste developer amount detection unit for obtaining information on an amount of accumulated waste developer discharged from the developing device, wherein the developing device uses toner image carrier holding a toner image and two-component developer to form a toner image, the waste developer amount detection unit obtains the information on the accumulated amount by emission and reception of light, and the waste developer container includes: a container space for containing waste developer discharged; a detection window for passing light that is emitted from the waste developer amount detection unit, passes the container space, and is incident again to the waste developer amount detection unit; and a magnet provided to a position where a magnetic force is applied to the detection window and light passing the detection window is not shut.

A developer storing apparatus according to the present disclosure includes a developer container and a container supporting portion that holds the developer container at a predetermined attachment position. The developer container includes a container body, an inlet, a first handle portion, and a second handle portion. The inlet is provided at a container upper portion of the container body, at a position near a first end portion on a side of an insertion direction of the developer container. From the inlet, the developer is caused to flow inside the container body. The first handle portion is provided at the container upper portion of the container body. The second handle portion is provided at a second end portion of the container body on a side of a draw-out direction opposite to the insertion direction.

A first cartridge support is configured to support a drum cartridge. The first cartridge support is configured to move in a first direction between a first position at which the drum cartridge is mounted on a housing and a second position at which the drum cartridge is detachable. A second cartridge support is configured to support a development cartridge. The second cartridge support is configured to move in the first direction between a third position at which the development cartridge is mounted on the drum cartridge and a fourth position at which the development cartridge is detachable. In a state where the second cartridge support is located at the third position, the second cartridge support is located between the first cartridge support located at the first position and a cover located at a closed position with respect to the first direction.

A first cartridge support is configured to support a drum cartridge. The first cartridge support is configured to move in a first direction between a first position at which the drum cartridge is mounted on a housing and a second position at which the drum cartridge is detachable. A second cartridge support is configured to support a development cartridge. The second cartridge support is configured to move in the first direction between a third position at which the development cartridge is mounted on the drum cartridge and a fourth position at which the development cartridge is detachable. In a state where the second cartridge support is located at the third position, the second cartridge support is located between the first cartridge support located at the first position and a cover located at a closed position with respect to the first direction.

An image forming apparatus includes an apparatus body, a cartridge attachable to and detachable from the apparatus body, a replenishment restriction portion configured to switch between a restricting state in which toner replenishment through a replenishment port is restricted and an allowing state in which toner replenishment through the replenishment port is allowed, a toner remainder amount detection portion, and a controller. The controller is configured to, when the replenishment container is attached to the replenishment port, maintain the replenishment restriction portion in the restricting state in a case where a second printable sheet number is larger than a first printable sheet number, with the first printable sheet number being obtained from a lifetime of the cartridge, and the second printable sheet number being obtained from a sum of the amount of toner accommodated in the developer container and an amount of toner accommodated in the replenishment container.

An image forming apparatus includes an apparatus body, a cartridge attachable to and detachable from the apparatus body, a replenishment restriction portion configured to switch between a restricting state in which toner replenishment through a replenishment port is restricted and an allowing state in which toner replenishment through the replenishment port is allowed, a toner remainder amount detection portion, and a controller. The controller is configured to, when the replenishment container is attached to the replenishment port, maintain the replenishment restriction portion in the restricting state in a case where a second printable sheet number is larger than a first printable sheet number, with the first printable sheet number being obtained from a lifetime of the cartridge, and the second printable sheet number being obtained from a sum of the amount of toner accommodated in the developer container and an amount of toner accommodated in the replenishment container.

A waste toner storage case includes a case main body, a waste toner path, a conveyance portion, a conversion portion, and a moving member. The waste toner path is provided in the case main body. The conversion portion converts a rotary motion into a reciprocating motion in conjunction with a rotation of the rotation shaft. The moving member is coupled with the conversion portion, reciprocatingly moves in a direction along the inclined guide surface in accordance with the reciprocating motion from the conversion portion, and includes: a first extending portion extending from the coupling portion to the reception port; and a second extending portion extending from the coupling portion to the reception port to make a predetermined angle with respect to the first extending portion in a first direction separating from the inclined guide surface.

A waste toner storage case includes a case main body, a waste toner path, a conveyance portion, a conversion portion, and a moving member. The waste toner path is provided in the case main body. The conversion portion converts a rotary motion into a reciprocating motion in conjunction with a rotation of the rotation shaft. The moving member is coupled with the conversion portion, reciprocatingly moves in a direction along the inclined guide surface in accordance with the reciprocating motion from the conversion portion, and includes: a first extending portion extending from the coupling portion to the reception port; and a second extending portion extending from the coupling portion to the reception port to make a predetermined angle with respect to the first extending portion in a first direction separating from the inclined guide surface.

An image forming apparatus includes a lock mechanism, a first determination processing portion, and a regulation processing portion. The lock mechanism is configured to regulate attachment and detachment of the developer storage portion attached to the attachment portion. The first determination processing portion determines whether or not the developer storage portion attached to the attachment portion is a developer storage portion of a predetermined specific type. The regulation processing portion, when the developer storage portion attached to the attachment portion has been determined to be a developer storage portion of the specific type, causes the lock mechanism to regulate attachment and detachment of the developer storage portion.