An openable door includes a first engaging member, a second engaging member, and at least one intermediate engaging member. when the openable door pivots from an open position to a closed position, an engaging portion of the first engaging member engages a first engaged portion, and an engaging portion of an engaging portion of the second engaging member engages a second engaged portion before an engaging portion of the intermediate engaging member engages an intermediate shaft body.

An image forming apparatus includes: a body of the image forming apparatus; a first inclined portion that is inclined upward from one side surface toward another side surface of the body of the image forming apparatus; a second inclined portion that is inclined downward from an inner end portion of the first inclined portion toward the one side surface; multiple cooled parts that are disposed in a space between the first inclined portion and the second inclined portion and that are disposed to be spaced from each other in a direction from the one side surface to the other side surface; a first wall member that is disposed above the first inclined portion and that has a first ventilation part; and a second wall member that is disposed below the second inclined portion and that has a second ventilation part.

An image forming apparatus include an image forming device, an image bearer, a transferrer, a cleaner, and an adhesion amount detector. The image forming device forms, on the image bearer, a toner image to be transferred to a recording medium and a toner image pattern to be input to the cleaner without being transferred to the recording medium. The cleaner cleans the image bearer. The adhesion amount detector detects a toner adhesion amount of the toner image. The toner image pattern is a belt-shaped pattern elongated in an orthogonal direction orthogonal to a traveling direction of the image bearer and having a greater amount of toner input to a portion of the cleaner corresponding to a position of the adhesion amount detector in the orthogonal direction than that input to a portion of the cleaner not corresponding to the position of the adhesion amount detector in the orthogonal direction.

An opening-closing member of an image forming apparatus includes: an external opening-closing member that configurates a part of an outer surface of the image forming apparatus and that is openable and closable; an internal opening-closing member that faces an inner surface of the external opening-closing member and that is openable and closable together with the external opening-closing member; and a container that defines a containment space by protruding from the internal opening-closing member toward the external opening-closing member and that enables a member contained in the containment space to be taken out when the external opening-closing member and the internal opening-closing member are opened.

An image forming apparatus includes a photoconductor, a bearing body, an abutting portion, a support frame, an exposure device, and an urging body. The photoconductor includes a shaft portion at an end portion. The bearing body is configured to receive the shaft portion. The abutting portion is coupled to the bearing body. The support frame is configured to support the abutting portion and the bearing body. The exposure device faces the photoconductor, abuts on the abutting portion, and includes a light source exposing the photoconductor to light. The urging body is configured to press the exposure device toward the support frame, urge the abutting portion toward the bearing body and the shaft portion, and urge the bearing body toward the support frame.

A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.

A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.

A control portion of an image forming apparatus causes an operation of a first fan start and then causes a second fan to start. The time when the operation of the second fan starts is from a predetermined time before the time when the leading end of one sheet reaches a fixing nip to the time when the rear end of the one sheet passes through the fixing nip. In this way, since the second fan operates after the first fan operates, fine particle dust is hardly discharged to the outside of the image forming apparatus, and it is possible to suppress dew condensation inside the image forming apparatus.

To provide a process cartridge, a drum unit capable of receiving a driving force from the main assembly, and an image forming apparatus including the process cartridge. A cartridge is provided with a movable member having a driving force receiving portion. The movable member moves between an advanced position and a retracted position.

An image forming apparatus includes a lubricant application target member, an application roller which is provided at a position adjacent to the lubricant application target member to apply a lubricant to the lubricant application target member, a lubricant support member which supports the lubricant, and a movement mechanism which includes a guide coupled to the lubricant support member and extending along a linear direction. An engaging portion engages with the guide and restricts movement of the lubricant support member in a linear direction of the guide by engagement of the guide with the engaging portion.