Sheet conveying roller and image forming apparatus

An image forming apparatus comprising:

• an image forming mechanism;
• and
• a sheet conveying roller which conveys a sheet to the image forming mechanism;
• wherein the sheet conveying roller comprises a tubular roller body unitarily formed of an elastic material and having a plurality of linear projections circumferentially equidistantly provided on an outer peripheral surface thereof as extending axially of the roller body;
• wherein the linear projections each have a generally right-angled triangular cross section taken perpendicularly to a center axis of the roller body, the generally right-angled triangular cross section including a hypotenuse edge and an adjoining edge located on a forward side and on a rearward side, respectively, with respect to a circumferential roller body rotation direction, the adjoining edge aligning with a line perpendicular to the center axis of the roller body;
• wherein a corner defined between the hypotenuse edge and the adjoining edge of each of the linear projections is rounded as seen in section;
• wherein a corner defined between the hypotenuse edge of one of each two adjacent linear projections and the adjoining edge of the other linear projection is rounded as seen in section.