A system for an electrophotographic image forming device includes a basket having a first side, a second side, and a positioning slot. The positioning slot is configured to receive a developer unit having a longitudinal dimension that extends along a length of the positioning slot from the first side to the second side when the developer unit is positioned in the positioning slot. A latch positioned at the first side of the basket is pivotable about a pivot axis that is parallel to the longitudinal dimension between a latched position for applying a hold-down force on an end portion of the developer unit when the developer unit is positioned in the positioning slot to rigidly hold the end portion of the developer unit against the basket and an 10 unlatched position to release the end portion of the developer unit permitting removal of the developer unit from the basket.

A toner container for use with a developer unit of an image forming device includes a body having a reservoir for holding toner and an engagement arm that is movable relative to the body between a disengaged position and an engaged position. The engagement arm includes a first engagement surface for contacting a cam surface in the image forming device and receiving an actuation force from the cam surface to move the engagement arm from the disengaged position to the engaged position when the toner container is inserted into the image forming device. The engagement arm includes a second engagement surface for contacting and applying a hold-down force on a portion of the developer unit when the engagement member moves from the disengaged position to the engaged position when the toner container is inserted into the image forming device with the developer unit installed in the image forming device.

An image forming apparatus has a body frame and a slide frame. The slide frame is configured to be pulled out from the body frame along a sliding direction. A plurality of image forming cartridges is detachably mounted on the slide frame. A plurality of electrode members is mounted on the slide frame and aligned along the sliding direction so as to correspond to the image forming cartridges. A body-side contact portion of each of the electrode members is electrically connected to the body frame. A cartridge-side contact portion of the electrode member is electrically connected to the image forming cartridge. The image forming cartridge is connected to the body via the corresponding electrode member when the slide frame mounting the image forming cartridges is inserted to the body frame.

An image-forming device includes a main casing, a belt accommodated in the main casing, developing units arranged along the belt, a drawer configured to detachably support the developing units, the drawer configured to move to a position inside the main casing and to a position outside the main casing, and the drawer having a leading end and a trailing end in a pulling direction from the inside position to the outside position; and a guide configured to guide the drawer and to move between a first position and a second position when the drawer is at the inside position, the second position being farther from the belt than the first position from the belt. When the guide is at the second position, the guide is configured to be tilted downward relative to a horizontal direction such that the leading end is lower than the trailing end.

An image forming apparatus includes an intermediate transferor to rotate in a predetermined rotation direction, a plurality of image bearers disposed along the intermediate transferor to bear latent images, a plurality of developing devices to develop the latent images, a plurality of developer containers to contain developers, and a plurality of conveyance paths each corresponding to a respective one of the plurality of developing devices and a respective one of the plurality of developer containers to supply the developers to the plurality of developing devices respectively. An arrangement of the plurality of developing devices in the predetermined rotation direction is configured to be changed without changing an arrangement of the plurality of developer containers. A layout of the plurality of conveyance paths is configured to be changed without changing connections between a supply source and a supply destination of the plurality of conveyance paths.

An image forming apparatus includes a toner replenishing portion, a waste toner collecting portion, and a toner container. The toner container is attachable to the toner replenishing portion and the waste toner collecting portion. The toner container includes a first lever switchable between first and second positions, and a second lever switchable between third and fourth positions. The toner replenishing portion includes a first actuating portion configured to, while the toner container is being attached to the toner replenishing portion, prohibit an attachment of the toner container, and a second actuating portion configured to switch the second lever to the fourth position. The waste toner collecting portion includes a third actuating portion configured to, while the toner container is being attached to the waste toner collecting portion, prohibit an attachment of the toner container, and a fourth actuating portion configured to switch the first lever to the second position.

An image forming apparatus has a body frame and a slide frame. The slide frame is configured to be pulled out from the body frame along a sliding direction. A plurality of image forming cartridges is detachably mounted on the slide frame. A plurality of electrode members is mounted on the slide frame and aligned along the sliding direction so as to correspond to the image forming cartridges. A body-side contact portion of each of the electrode members is electrically connected to the body frame. A cartridge-side contact portion of the electrode member is electrically connected to the image forming cartridge. The image forming cartridge is connected to the body via the corresponding electrode member when the slide frame mounting the image forming cartridges is inserted to the body frame.

A contact point end portion of a second ring connected to a first ring portion on a power reception portion side protrudes further in the direction of a power reception portion than a contact point end portion of the first ring connected to a spring portion on a power reception portion side.

An image forming apparatus includes a toner replenishing portion, a waste toner collecting portion, and a toner container. The toner container is attachable to the toner replenishing portion and the waste toner collecting portion. The toner container includes a first lever switchable between first and second positions, and a second lever switchable between third and fourth positions. The toner replenishing portion includes a first actuating portion configured to, while the toner container is being attached to the toner replenishing portion, prohibit an attachment of the toner container, and a second actuating portion configured to switch the second lever to the fourth position. The waste toner collecting portion includes a third actuating portion configured to, while the toner container is being attached to the waste toner collecting portion, prohibit an attachment of the toner container, and a fourth actuating portion configured to switch the first lever to the second position.

An image-forming device includes a main casing, a belt accommodated in the main casing, developing units arranged along the belt, a drawer configured to detachably support the developing units, the drawer configured to move to a position inside the main casing and to a position outside the main casing, and the drawer having a leading end and a trailing end in a pulling direction from the inside position to the outside position; and a guide configured to guide the drawer and to move between a first position and a second position when the drawer is at the inside position, the second position being farther from the belt than the first position from the belt. When the guide is at the second position, the guide is configured to be tilted downward relative to a horizontal direction such that the leading end is lower than the trailing end.