A housing structure includes a main housing, a first cover that opens and closes by rotating with respect to the main housing about a first axis along a horizontal direction, a second cover provided further inside than the first cover and that opens and closes with respect to the main housing together with the first cover by rotating around a second axis parallel to the first axis, a regulation section that regulates the second cover in a closed state in which the second cover is closed, and a restriction section that, when the first cover is closed, restricts the release of regulation by the regulation section.

An image forming apparatus includes an apparatus main body having a ground member, a door that pivots around a pivotal support shaft, an electric component provided on the door, and a conductive portion having first and second conductive portions. The first conductive portion is provided on the door and moves with the door. The second conductive portion is provided on the apparatus main body and is electrically connected to the first conductive portion and the ground member. The first conductive portion includes a wire spring having a contact portion that contacts the second conductive portion, and exerts an elastic force to press the second conductive portion. The contact portion is at a position overlapping the door pivotal support shaft when viewed in a direction of a pivot axis line of the door. The contact portion of the wire spring linearly extends over the pivot axis line of the door.

An image forming apparatus includes: a front door covering a front side of an main body; a main body; a front door configured to cover a front side of the main body; a moving member configured to move with respect to the main body; an operation lever provided on the front side of the main body and configured to rotate between a locking position for locking the moving member and an unlocking position for unlocking the moving member, the operation lever being covered by the front door and being accessible by opening the front door; and a regulating member configured to move at least to a regulating position for regulating a rotation of the operation lever and to an allowing position for allowing the rotation of the operation lever.

A scanning optical device includes a polygon mirror, an optical box accommodating the polygon mirror, and a cover covering an opening of the optical box. On an opposite surface of the cover, a plurality of ribs projected toward the polygon mirror are formed. As viewed in a rotational axis direction of the polygon mirror, the ribs are disposed so as to have rotational symmetry about a rotational axis, extended from the axis toward a circumscribing circle of the polygon mirror, and disposed at positions apart from a distance in upstream or downstream side in the rotational direction to imaginary lines, of the same number as that of the ribs, having rotational symmetry about the rotational axis. Each of ribs has a lengthy shape parallel to the corresponding imaginary line, one end portion thereof is disposed outside and the other end portion thereof is disposed inside the circumscribing circle.

An image forming apparatus includes an image forming unit including an image bearing member and a housing accommodating the image forming unit. The housing includes an exterior portion, a first side plate, a second side plate, and a stay joined to the first and second side plates. The first side plate includes a first surface intersecting a rotational axis direction of the image bearing member, the second side plate includes a second surface intersecting the rotational axis direction, and the second surface is opposed to the first surface. A connection substrate supported by the stay includes a connector exposed to an outside of the housing, and a wiring board to which the connector is attached. When viewed in the rotational axis direction, the connector overlaps a recessed portion formed in an outer edge of the first side plate and overlaps the second side plate.

An image forming apparatus includes a positioning portion, a restriction portion, and a return portion. In contrast to an engagement portion provided on one of an apparatus main body and a pullout portion, an engaged portion provided on the other of the apparatus main body and the pullout portion. When the pullout portion is in an attachment position, first and second contact portions are in contact with the engagement portion. The contact between the first contact portion and the engagement portion restricts movement of the pullout portion in an insertion direction. The contact between the second contact portion and the engagement portion restricts movement of the pullout portion in a pullout direction. The restriction portion restricts the movement of the pullout portion when the pullout portion reaches a restricted position. The return portion moves the pullout portion to the attachment position when the pullout portion is in the restricted position.

A housing structure includes a main housing, a first cover configured to open and close by rotating with respect to the main housing about a first axis along a horizontal direction, a second cover provided further inside than the first cover and configured to open and close with respect to the main housing together with the first cover by rotating around a second axis parallel to the first axis, a regulation section configured to regulate the second cover in a closed state in which the second cover is closed, and a restriction section configured to, when the first cover is closed, restrict the release of regulation by the regulation section.

An image forming apparatus includes: an apparatus body; an opening and closing member; a connection member having a first engagement portion that is engaged with the apparatus body and a second engagement portion that is engaged with the opening and closing member; a pressing member having a third engagement portion that is engaged with the connection member, a pressing portion that is capable of pressing the pressed portion of the opening and closing member, and an urged portion; an urging member urging the urged portion such that the pressing portion is pressed against the pressed portion. The second engagement portion is movable between a first position and a second position. When the opening and closing member is between a closed position and an open position, the pressing portion moves relative to the pressed portion while pressing the pressed portion, in conjunction with rotation of the opening and closing member.

An image forming apparatus includes an apparatus main body having a receiving portion on a conveying path, an open/close unit movable between open and close positions, a roller located on the conveying path when the open/close unit is closed, a pressure applying unit applying pressure to the roller, and a separation unit movable between first and second positions. When at the first position, the roller contacts the receiving portion with pressure from the pressure applying unit. When at the second position, the roller is separated from the receiving portion. A switching device switches the separation unit's position, controlled by a control unit. An open/close detecting unit detects the open/close unit's state. If the separation unit is at the second position and the open/close unit is detected at the open position, the control unit controls the switching device to move the separation unit to the first position.

An image forming apparatus includes: an apparatus body; a removable body that is removably attachable to the apparatus body; an installation body including an operating part that operates when manipulated by a user, the installation body being installed in the apparatus body such that the installation body covers at least a portion of the removable body; and an urging unit that operates in association with the operating part and urges the removable body in an attachment direction, in which the removable body is attached to the apparatus body, while at least the portion of the removable body is covered by the installation body.