Patent ID: 8162309

Claim:
A sheet conveying device comprising: a first convey roller disposed in a first path; a second convey roller disposed in the first path and downstream from the first convey roller in a sheet conveying direction; a driving unit configured to independently drive each of the first convey roller and the second convey roller; and a controller configured to control the driving unit in a particular mode, such that: the first convey roller rotates in a forward direction to convey a sheet along the first path in the sheet conveying direction, the second convey roller rotates in a forward direction to convey the sheet along the first path in the sheet conveying direction, wherein the first convey roller conveys the sheet such that a leading edge of the sheet passes through a nip of the second convey roller, the second convey roller rotates in a reverse direction by a first rotation amount corresponding to a first linear distance to convey the sheet in a direction opposite to the sheet conveying direction, such that the leading edge of the sheet is released from the nip of the second convey roller, and in response to the rotation of the second convey roller in the reverse direction, the first convey roller rotates by a second rotation amount corresponding to a second linear distance in the reverse direction to convey the sheet in the direction opposite to the sheet conveying direction, such that the leading edge of the sheet contacts the nip of the second convey roller when the first convey roller has rotated by the second rotation amount and the second convey roller has rotated by the first rotation amount.