A toner container for use in an image forming device according to one example embodiment includes a body having a reservoir for holding toner. The toner container includes an electrical connector having an electrical contact for contacting a corresponding electrical contact in the image forming device when the toner container is installed in the image forming device. The electrical connector is positioned in one of a plurality of predetermined positions relative to the body corresponding to at least one of a toner color and a toner type of the toner container for limiting installation of the toner container to one of a plurality of toner container receptacles in the image forming device corresponding to at least one of the toner color and the toner type of the toner container.

An image forming apparatus includes a main housing, a drawer, and a cartridge. The drawer is movable between an inside position inside the main housing and an outside position outside the main housing. The cartridge is installable into and removable from the drawer. The cartridge includes a photosensitive drum configured to rotate about a drum axis. The drawer comprises a lock member movable between a lock position in which the drawer is locked to the main housing, and an unlock position in which the drawer is unlocked from the main housing. The cartridge installed in the drawer is rotatable about the drum axis between a first position and a second position. The lock member is positioned in the lock position when the cartridge is positioned in the first position, and positioned in the unlock position when the cartridge is positioned in the second position.

A developing device includes: a toner bearer; a layer-thickness regulating member including a regulating portion and a projecting portion; a seal holding surface; and a seal. The regulating portion presses against a surface of the toner bearer to regulate a layer thickness of toner on the toner bearer. The projecting portion is at a back side of the regulating portion. The seal holding surface is opposite an end surface of the toner bearer. The seal is between the end surface of the toner bearer and the seal holding surface. A part of the projecting portion opposite the end surface is interposed between the seal and the end surface. The seal holding surface has a convex portion at a position opposite at least one of an upstream adjacent portion or a downstream adjacent portion adjacent to the part of the projecting portion in a surface movement direction of the toner bearer.

An image forming apparatus includes a main frame and a unit installable in an installation position in the main frame. The main frame has a first guide, a second guide, a groove, and a frame-side connector. The frame-side connector is movably held by the main frame. The unit has a first reference portion and a unit-side connector. The unit is installed in the main frame by a first process in which the first reference portion is guided by the first guide, a second process, in which the first reference portion is guided by the second guide, and a third process, in which the first reference portion is received in the groove and the unit is located in the installation position. The unit-side connector engages the frame-side connector in the first process, and the frame-side connector moves as the unit-side connector moves in the second process and in the third process.

A recording device includes a support portion that supports a medium, a recording unit that performs recording on the supported medium, an irradiation unit that emits light on the medium on which recording is performed, a housing that covers the support portion, the recording unit, and the irradiation unit, wherein the housing includes light transmissive members through which an inside of the housing is visually recognizable, the light transmissive members being provided at four surfaces including an upper surface, a left side surface, a right side surface, and a front surface that constitute the housing, the light transmissive members being configured to reduce transmittance of light transmitted through the four surfaces from the inside of the housing.