The belt conveyance device includes a plurality of rollers, a belt, a meandering correction part, and an adjustment part. The rollers are disposed at intervals each other and rotate around axes. The belt is disposed around the plurality of rollers and travels. The meandering correction part shifts one end portion in an axial direction of a tension roller included in the plurality of rollers in a radial direction within a predetermined range to correct a meandering of the belt. The adjustment part shifts the other end portion in the axial direction of the tension roller in the radial direction such that a position of the one end portion of the tension roller is variable under a state where the meandering of the belt is corrected.

A movable-member supporter includes: a first support member that includes a first support plate, a first guide unit provided at the first support plate, and a first connection section, the first guide unit guiding movement of a movable member and having one end that extends to one side surface of the first support plate, the first connection section being provided at the one side surface of the first support plate; and a second support member that includes a second support plate, a second guide unit provided at the second support plate, and a second connection section, the second guide unit guiding movement of the movable member and having one end that extends to one side surface of the second support plate, the second connection section being provided at the one side surface of the second support plate and being connected with the first connection section of the first support member.

An image forming apparatus includes an endless image bearing belt, a first roller, a second roller, a rotatable member, a feeding unit, a first guiding member, and a second material guiding member. The second guiding member is fixed to the first guiding member so as to form a feeding path of a recording material with an interval between the second guiding member and the first guiding member.

In an example of the disclosure, service rotation of a drum along a longitudinal axis of the drum is caused. The service rotation is to apply a centrifugal force upon a liquid held by the drum. The centrifugal force pushes gas bubbles in the drum away from a curved surface of the drum and towards the longitudinal drum axis. The gas bubbles evacuate from the drum via an outlet tube positioned adjacent to the longitudinal drum axis. A production rotation of the drum is caused after the service rotation.

In an example of the disclosure, service rotation of a drum along a longitudinal axis of the drum is caused. The service rotation is to apply a centrifugal force upon a liquid held by the drum. The centrifugal force pushes gas bubbles in the drum away from a curved surface of the drum and towards the longitudinal drum axis. The gas bubbles evacuate from the drum via an outlet tube positioned adjacent to the longitudinal drum axis. A production rotation of the drum is caused after the service rotation.

A movable-member supporter includes: a first support member that includes a first support plate, a first guide unit provided at the first support plate, and a first connection section, the first guide unit guiding movement of a movable member and having one end that extends to one side surface of the first support plate, the first connection section being provided at the one side surface of the first support plate; and a second support member that includes a second support plate, a second guide unit provided at the second support plate, and a second connection section, the second guide unit guiding movement of the movable member and having one end that extends to one side surface of the second support plate, the second connection section being provided at the one side surface of the second support plate and being connected with the first connection section of the first support member.

An image forming apparatus includes an main body, a processing unit, and a pressing member. The main body includes a transfer belt wound around a plurality of rollers. The processing unit can be inserted into and removed from the main body. The processing unit includes a drum that faces the transfer belt in a state of being inserted into the main body. The processing unit forms an image on the surface of the drum. The pressing member is provided on the main body and includes a contacted portion and a contacting portion. The contacted portion comes into contact with the processing unit when the processing unit is inserted into and removed from the main body. The contacting portion comes contact with the transfer belt due to contact with the processing unit to push the transfer belt in a direction away from the processing unit.

A jacket includes: a first layer that is on a cylinder body side when the jacket is attached to a rotating cylinder body; and a second layer that is a layer located on a side opposite to the cylinder body with respect to the first layer, has a hardness lower than that of the first layer, and does not exist at a position where at least one of end edges of the cylinder body in a rotation axis direction is located inward of the first layer in the rotation axis direction.

An image forming apparatus includes an endless image bearing belt, a first roller, a second roller, a rotatable member, a feeding unit, a first recording material guiding member, and a second recording material guiding member. The second recording material guiding member is fixed to the first recording material guiding member so as to form a feeding path of a recording material with an interval between itself and the first recording material guiding member.

According to one embodiment, an image forming apparatus includes an apparatus body, a transfer unit body, a transfer counter roller, a transfer belt, a side cover, a transfer roller, a shaft end member, and a holding member. The side cover is opened and closed with respect to the apparatus body. The transfer roller is supported by the side cover, moves between an abutting position at which the transfer roller comes into contact with the transfer belt and interposes the transfer belt along with the transfer counter roller and a separate position at which the transfer roller is separated from the transfer belt. The shaft end member is provided at a shaft end of the transfer roller. The holding member is provided in the transfer unit body, holds the shaft end member at the abutting position, and opens the shaft end member at the separate position.