Abstract: A correction mechanism incorporated in a belt conveyance device includes a pair of inclined bearings and a pair of main body guides, and corrects meandering of an endless belt. The pair of inclined bearings include a pair of inclined portions, and support a shaft portion of a roller that stretches the belt. The pair of main body guides contact the pair of inclined portions, and, when the belt meanders, cause one end part side of the roller in the axial direction thereof to move in a direction perpendicular to the axial direction thereof. The pair of inclined portions and the pair of main body guides are disposed inward of opposite end parts of the roller in the axial direction thereof, as seen from a direction perpendicular to the axial direction of the roller.

Abstract: A driving force transmission mechanism transmits a driving force fed from a driving source to a rotary member. The driving force transmission mechanism includes a driving gear, a drive-side coupling, an output-side coupling, and an urging member. The driving gear rotates by being fed with the driving force from the driving source, and has a hollow space along the rotation axis direction. The drive-side coupling is inserted in the hollow space in the driving gear, and rotates together with the driving gear. The output-side coupling is integral with the rotary member, and can couple with the drive-side coupling along the rotation axis direction. The urging member urges one of the drive-side coupling and the output-side coupling toward the other along the rotation axis direction.

Abstract: A correction mechanism incorporated in a belt conveyance device includes a pair of inclined bearings and a pair of main body guides, and corrects meandering of an endless belt. The pair of inclined bearings include a pair of inclined portions, and support a shaft portion of a roller that stretches the belt. The pair of main body guides contact the pair of inclined portions, and, when the belt meanders, cause one end part side of the roller in the axial direction thereof to move in a direction perpendicular to the axial direction thereof. The pair of inclined portions and the pair of main body guides are disposed inward of opposite end parts of the roller in the axial direction thereof, as seen from a direction perpendicular to the axial direction of the roller.

Abstract: An image forming apparatus includes a guide member including a guide surface that guides a sheet to a delivery rotating body, an opposing member opposed to the other face of the sheet, on an opposite side of the guide surface of the guide member, and defining an air passage between the opposing member and the guide member, such that one end portion is located on a side of the outer space, and the other end portion, on an opposite side of the outer space, communicates with a predesignated space on a side of the fixing device in an apparatus main body, and a dam member located downstream of the delivery rotating body in a sheet transport direction, and configured to dam air to be discharged with the sheet by the delivery rotating body, thereby guiding the air to the one end portion of the air passage.

Abstract: An image forming apparatus includes a guide member including a guide surface that guides a sheet to a delivery rotating body, an opposing member opposed to the other face of the sheet, on an opposite side of the guide surface of the guide member, and defining an air passage between the opposing member and the guide member, such that one end portion is located on a side of the outer space, and the other end portion, on an opposite side of the outer space, communicates with a predesignated space on a side of the fixing device in an apparatus main body, and a dam member located downstream of the delivery rotating body in a sheet transport direction, and configured to dam air to be discharged with the sheet by the delivery rotating body, thereby guiding the air to the one end portion of the air passage.