Patent ID: 8684355

Claim:
A sheet conveyance apparatus comprising: a drive roller configured to convey a sheet in a first direction, the drive roller having a rotational shaft extending along a second direction crossing the first direction and having a first half and a second half with respect to a center of the drive roller in the second direction; and a plurality of pinch rollers including a first pinch roller, a second pinch roller, a third pinch roller and a fourth pinch roller, each configured to pinch the sheet in cooperation with the drive roller, the first pinch roller being positioned nearer to the center than the second pinch roller in an area corresponding to the first half, and the third pinch roller being positioned nearer to the center than the fourth pinch roller in an area corresponding to the second half, wherein the first pinch roller includes second and third pinch roller side ends and is provided in a manner such that the third pinch roller side end is located on a downstream side, in the first direction and for a first amount, of the second pinch roller side end, wherein the second pinch roller includes a first pinch roller side end and other side end and is provided in a manner such that the first pinch roller side end is located on a downstream side, in the first direction and for a second amount being larger than the first amount, of the other side end, wherein the third pinch roller includes first and fourth pinch roller side ends and is provided in a manner such that the first pinch roller side end is located on a downstream side, in the first direction and for a third amount, of the fourth pinch roller side end, and wherein the fourth pinch roller includes a third pinch roller side end and other side end and is provided in a manner such that the third pinch roller side end is located on a downstream side, in the first direction and for a fourth amount being larger than the third amount, of the other side end.