Patent ID: 8919761

Claim:
A reading device comprising: a first conveyance unit configured to convey a sheet; a reading unit configured to read an image on the sheet conveyed by the first conveyance unit; a second conveyance unit configured to convey the sheet in a first direction to receive the sheet from the first conveyance unit and to convey the sheet in a second direction after the conveyance in the first direction to convey the sheet to the first conveyance unit; a driving source configured to drive the second conveyance unit; a drive transmitting unit configured to transmit driving force of the driving source to the second conveyance unit, the second conveyance unit conveying the sheet in the first direction when the driving source rotates in a first rotation direction, and the second conveyance unit conveying the sheet in the second direction when the driving source rotates in a second rotation direction; and a control unit configured to perform a change of the rotation direction of the driving source such that the rotation direction of the driving source changes from the second rotation direction to the first rotation direction when the second conveyance unit conveys the sheet in the second direction while the first conveyance unit conveys the same sheet, wherein the second conveyance unit comprises a conveyance roller and a pinch roller configured to pinch the sheet in cooperation with the conveyance roller, and the drive transmitting unit temporarily stops transmitting the driving force to the conveyance roller so that the conveyance roller can freely rotate when the rotation direction of the driving source changes from the second rotation direction to the first rotation direction.