An image forming apparatus includes a first roller, a second roller arranged downstream of the first roller in a sheet conveyance direction, the second roller including a rotation shaft and a roller body supported by the rotation shaft, a third roller arranged downstream of the second roller in the sheet conveyance direction, a first support member configured to rotatably support the first roller, a second support member configured to rotatably support the third roller, and a bearing member configured to rotatably support an end portion of the rotation shaft. The bearing member includes a first positioning portion configured to position an end portion of the first support member and a second positioning portion configured to position an end portion of the second support member.

A guide unit holding portion is formed at a position between two struts in a longitudinal direction of a fixing unit. When a main cover portion rotates from an open position to a closed position, a supported portion of a swing guide unit moves from a position where the supported portion is separated from the guide unit holding portion to a position where the supported portion is in contact with the guide unit holding portion. Further, the supported portion slides on the guide unit holding portion. When the supported portion slides on the guide unit holding portion, the swing guide unit is swung upward, and then held at a target position by the guide unit holding portion.

A sheet conveying device, which is included in an image forming apparatus, includes first and second sheet conveying bodies to contact each other, a cover to move relative to an apparatus body of the image forming apparatus, and a connecting body to connect the cover and the second sheet conveying body. The second sheet conveying body separates from the first sheet conveying body along with an opening movement of the cover. The connecting body includes a first connecting portion connected to the cover and a second connecting portion connected to the second sheet conveying body. At least one of a connection with the cover and a connection with the second sheet conveying body is released when the cover is closed. The connecting body is brought into connection with the cover or the second sheet conveying body.

An image forming apparatus includes a transfer unit, a fixing unit, a reverse rotary member pair, a first conveyance path, a second conveyance path, an opening and closing member, a first guide member, a second guide member, and a dividing member. The second guide member is supported by the opening and closing member and forms an inserted portion where a case of the fixing unit is inserted and one side of guide surfaces of the second conveyance path. The second guide member forms one side of guide surfaces of the first conveyance path in a state where the opening and closing member is in a closed position. The dividing member, in the state where the opening and closing member is in the closed position, divides a gap formed between the second guide member and the case inserted into the inserted portion from the second conveyance path.

A first transport unit transports, along a first path, a sheet transported from an image forming unit. A second transport unit transports the sheet along a second transport path branched from a junction with the first transport path. A first cover, when open, holds the sheet transported to an exterior of a housing and, when closed, partially constitutes the second transport unit. A flap is disposed at the junction and, when at a first position, blocks the second transport path and guides the sheet along the first transport path and, when at a second position, blocks the first transport path and guides the sheet along the second transport path. A drive unit moves the flap between the first position and the second position. A moving mechanism moves away from the flap in response to closing of the first cover, and pushes and moves the flap to the second position.

An imaging device having a door-actuated feed roll separator mechanism. A pair of opposed panels of a frame of the imaging device are positioned parallel to a media path. A feed roll pair in the media path has a drive roll fixedly and rotatably mounted between the panels and a backup roll mounted to a pair of release assemblies that are slidably mounted to the panels. Biasing members bias the backup roll into contact with the drive roll forming a feed nip. A door pivotally mounted along a bottom end to the frame substantially covers the media path. A pair of tethers connect the pair of release assemblies to the door. With the door lowered, its weight applies a release force to the backup roll separating it from the drive roll to allow for easier removal of a media sheet jammed in the feed nip

An imaging device having a door-actuated feed roll separator mechanism. A pair of opposed panels of a frame of the imaging device are positioned parallel to a media path. A feed roll pair in the media path has a drive roll fixedly and rotatably mounted between the panels and a backup roll translateably mounted between the panels. A pair of cam followers are rotatably mounted to the backup roll. The backup roll is biased against the drive roll forming a feed nip. A door pivotally mounted along a bottom end to the frame substantially covers the media path. A pair of door-mounted, spring-biased actuators engage with the pair of cam followers. With the door lowered, the cam followers rotate with a camming surface thereon contacting the drive roll, translating the backup roll away from the drive roll and opening the feed nip to allow for removal of jammed media.

An image forming apparatus includes an apparatus body, an image forming unit, an opening and closing cover, a fixed cover that constitutes a part of an exterior of the apparatus body with the opening and closing cover, and is configured to form a boundary portion with an upper edge of the opening and closing cover in a vertical direction, a positioning portion including a first engagement portion provided in the opening and closing cover, and a second engagement portion provided in the fixed cover, a first conveyance guide provided on the opening and closing cover, and a second conveyance guide provided on the fixed cover. The first engagement portion and the second engagement portion are configured to engage with each other to perform positioning of the opening and closing cover and the fixed cover in the vertical direction and positioning of the first conveyance guide and the second conveyance guide.

An image forming apparatus includes an openable member rotatable relative to a main assembly of the image forming apparatus; and a supporting member connected between the main assembly of the image forming apparatus and the openable member configured to support the openable member when the openable member is opened. The supporting member includes a first arm member and a second arm member which are slidable relative to each other, a pinion provided on the first arm member, a viscous damper mounted on a rotation shaft of the pinion, a rack provided on the second arm member and engaged with the pinion. By opening the openable member, relative slide movement is caused between the first arm member and the second arm member so that the pinion engaged with the rack rotates and a braking force is produced by the viscous damper.

Provided is an opening/closing unit including a cover member and a conveying unit. The cover member is provided to one side surface of an apparatus main body so as to open and close a sheet conveying path. The conveying unit is provided inside of the cover member in the apparatus main body. The sheet conveying path includes a first conveying path formed between the conveying unit and the apparatus main body, and a second conveying path formed between the conveying unit and the cover member. When an operating lever of the cover member is rotated to a second position, opening operation of the cover member is enabled. When the operating lever is rotated to a first position in a state where the cover member is opened, the conveying unit rotates with respect to the cover member so that the second conveying path is opened.