A document conveyance device according to the present disclosure includes a document conveyance path, a first actuator, a second actuator, and an optical sensor. The first actuator is disposed in the document conveyance path. The second actuator is disposed on a more downstream side than the first actuator in the document conveyance path in the document conveyance direction. An output state of the optical sensor is switched based on pivoting of the first actuator and second actuator. A tip end of the document passes the first actuator, whereby the optical sensor outputs a first output indicating a first state, the tip end of the document passes the second actuator, whereby the optical sensor outputs a second output indicating a second state, and a rear end of the document passes the first actuator, whereby the optical sensor outputs the first output.