Sheet conveyance apparatus and image forming apparatus

An image forming apparatus, comprising:

• an image forming unit configured to form a toner image;
• a transfer unit configured to transfer the toner image formed by the image forming unit onto a sheet;
• a fixing unit configured to fix the toner image transferred onto the sheet on the sheet;
• and
• a discharge unit configured to discharge the sheet, the discharge unit provided on a downstream side in a sheet conveyance direction in which a sheet is conveyed,
• wherein the discharge unit includes:
• a first roller configured to rotate around a first rotation axis;
• and
• a second roller configured to rotate around a second rotation axis, the second roller coming into contact with the first roller and there by forming a nip portion in which a sheet is conveyed, the second rotation axis being inclined with respect to the first rotation axis,
• wherein the second roller includes a first outer circumferential portion having a first outside diameter, a second outer circumferential portion arranged on one side of the first outer circumferential portion in an axial direction of the second rotation axis and having a second outside diameter larger than the first outside diameter, and a third outer circumferential portion arranged on the other side of the first outer circumferential portion in the axial direction of the second rotation axis and having a third outside diameter larger than the first outside diameter, and
• wherein an outer circumferential surface of the first roller contacts with at least the first outer circumferential portion, the second outer circumferential portion, and the third outer circumferential portion of the second roller to form the nip portion.