Patent ID: 7588248

Claim:
A sheet conveying device comprising: a sheet reversing unit configured to reverse a sheet, wherein the sheet reversing unit includes: a pair of rollers configured to be rotatable while being in pressure contact with each other; a connecting mechanism configured to support the pair of rollers such that the pair of rollers are capable of rotating together; a roller driving mechanism configured to transmit a rotational driving force to at least one of the pair of rollers; a roller-pair rotating mechanism configured to rotate the pair of rollers supported by the connecting mechanism together, and wherein the connecting mechanism supports the pair of rollers such that the pair of rollers is capable of rotating around a nip portion of the pair of rollers that are in pressure contact with each other, and wherein the roller driving mechanism includes: roller gears coaxially arranged on respective shafts of the pair of rollers; and a roller drive gear that meshes with one of the roller gears when the pair of rollers is stationary and meshes with neither of the roller gears when the pair of rollers is rotated by the roller-pair rotating mechanism, and wherein a driving force for rotating the pair of rollers is transmitted when the roller drive gear meshes with one of the roller gears.