A sheet conveyance device includes: a first conveyance path configured to allow a sheet to be conveyed along the first conveyance path; a second conveyance path that extends upward from a branch position in the first conveyance path; a third conveyance path that extends downward from the branch position; a first conveyance roller disposed in the second conveyance path and configured to rotate normally and reversely to convey the sheet; a first drive motor disposed below the branch position; and a first belt disposed in a drive transmission path from the first drive motor to the first conveyance roller and configured to transmit a driving force from the first drive motor to the first conveyance roller.

A sheet conveying apparatus configured to convey a sheet includes a reversing portion, a reversing retraction portion provided in the reversing portion, a conveyance portion, a guide member provided in the reversing retraction portion, and a fan provided in the conveyance portion. The reversing portion conveys the sheet in a first direction and then a second direction opposite to the first direction. The reversing retraction portion temporarily retracts the sheet conveyed in the first direction. The conveyance portion has a conveyance path through which the sheet conveyed in the second direction passes and configured to convey the sheet. The guide member guides one surface of the sheet. The fan blows air toward the sheet guided by the guide member and is disposed to blow the air of the conveyance path in the conveyance portion toward the reversing retraction portion and along the guide member in the first direction.

A sheet conveyance device has a sheet conveyance path with a first path and a second path. A wireless tag communication device can write information to a wireless tag on a sheet on the first and second paths and receive responses from the wireless tag. A controller controls the wireless tag communication device to attempt to write information to the wireless tag while on the first path, then determines whether information has been written to the wireless tag on the first path according to a response received from the wireless tag. The controller switches a conveyance destination for the sheet to the second path if the information has not been written or to a discharge location if the information has been written. The controller then controls the wireless tag communication device to attempt to write information to the wireless tag while the sheet is on the second path.

A sheet conveyance apparatus includes a first conveyance portion configured to convey a sheet, a second conveyance portion configured to convey the sheet, the second conveyance portion including an abutment portion configured to form a loop on the sheet by being abutted against a leading edge of a sheet conveyed by the first conveyance portion, a curved guide portion, which is curved, configured to guide the sheet conveyed by the first conveyance portion to the second conveyance portion, and a rotary member arranged downstream of the first conveyance portion and upstream of the second conveyance portion in a sheet conveyance direction, and configured to be driven to rotate by a surface of the sheet that is guided by the curved guide portion, the surface sliding against the curved guide portion.

An image forming apparatus includes a stacking unit, a feeding unit, an image forming unit, a discharge stacking unit, a detecting unit, a double-side feeding passage, and a controller. In a case that subsequent to a current recording material, a subsequent recording material is discharged, the controller determines a feeding timing of the subsequent recording material depending on a discharge interval time from discharge of the current recording material on the discharge stacking unit to discharge of the subsequent recording material on the discharge stacking unit, and determines the discharge interval time on the basis of print information of at least the subsequent recording material.

An image forming apparatus includes a stacking unit, a feeding unit, an image forming unit, a discharge stacking unit, a detecting unit, a double-side feeding passage, and a controller. In a case that subsequent to a current recording material, a subsequent recording material is discharged, the controller determines a feeding timing of the subsequent recording material depending on a discharge interval time from discharge of the current recording material on the discharge stacking unit to discharge of the subsequent recording material on the discharge stacking unit, and determines the discharge interval time on the basis of print information of at least the subsequent recording material.

An image forming apparatus includes: as a conveyance to convey an object formed with an image, an upstream-side conveyance path; an intermediate conveyance path connected to a downstream end part of the upstream-side conveyance path via a first bent part; and a downstream-side conveyance path connected to the intermediate conveyance path via a second bent part, wherein the second bent part is bent to a side opposite to the first bent part, on an inner side of a bend of the first bent part, a friction reducing part capable of abutting with the object conveyed in the first bent part is provided, and the intermediate conveyance path includes: a pair of guide parts forming the intermediate conveyance path; and a friction reducing part that is provided on both a pair of the guide parts and is capable of abutting with the object conveyed between a pair of the guide parts.

An image forming apparatus includes: as a conveyance to convey an object formed with an image, an upstream-side conveyance path; an intermediate conveyance path connected to a downstream end part of the upstream-side conveyance path via a first bent part; and a downstream-side conveyance path connected to the intermediate conveyance path via a second bent part, wherein the second bent part is bent to a side opposite to the first bent part, on an inner side of a bend of the first bent part, a friction reducing part capable of abutting with the object conveyed in the first bent part is provided, and the intermediate conveyance path includes: a pair of guide parts forming the intermediate conveyance path; and a friction reducing part that is provided on both a pair of the guide parts and is capable of abutting with the object conveyed between a pair of the guide parts.

A printing apparatus includes a first conveyance path, a conveyance roller, a printing unit, a reverse roller provided at a position on a downstream side of the printing unit in a first direction, a second conveyance path configured to reverse the front and back of the print medium, and a control unit. In a case where a first print medium on which printing has been performed first is conveyed in a second direction via the second conveyance path, the control unit controls the conveyance roller and the reverse roller, such that a trailing edge of the first print medium in the second direction passes through the reverse roller before a second print medium conveyed by the conveyance roller subsequent to the first print medium reaches the reverse roller.

A switching device for switching transport directions of a recording medium includes a switching member and at least one rotation stopper. The switching member is configured to switch transport paths of the recording medium. The at least one rotation stopper is configured to hit the switching member to stop rotation of the switching member. The at least one rotation stopper is disposed asymmetrically in a direction perpendicular to a transport direction in which the switching member transports the recording medium.