US Patent 12006174 Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus includes a conveyance section, the conveyance section including a roller rotatable in a first rotation direction and a second rotation direction, a guide member configured to move between a first position and a second position, a drive source, a drive switching unit including an input unit, an output unit, and a switching unit, a drive interruption unit configured to transition between a transmission state and a non-transmission state. The roller is configured to rotate by the driving force output from the output unit of the drive switching unit while the guide member moves between the first position and the second position.