Sheet conveying apparatus and image forming apparatus

An image forming apparatus comprising:

• an image forming device configured to form an image on a sheet;
• and
• a sheet conveying device configured to convey a sheet toward the image forming device, the sheet conveying device including:
• a conveying roller;
• a pinch roller including:
• a roller shaft extending parallel to a rotation axis of the conveying roller, the roller shaft including a first end portion and a second end portion opposite to the first end portion;
• and
• a roller body supported by the roller shaft and rotatable relative to the roller shaft;
• a frame having a first groove receiving the first end portion of the roller shaft and a second groove receiving the second end portion of the roller shaft, the first groove and the second groove extending in a first direction orthogonal to the roller shaft, the frame holding the roller shaft movably in the first direction;
• and
• a pressing device pressing the roller shaft in a pressing direction parallel to the first direction and directed toward the conveying roller such that the roller body is pressed against a peripheral surface of the conveying roller,
• wherein the first end portion of the roller shaft has a first contact surface at a peripheral surface of the first end portion, the first contact surface being a planar surface,
• wherein the second end portion of the roller shaft has a second contact surface at a peripheral surface of the second end portion, the second contact surface being a planar surface, and
• wherein the roller shaft is disposed such that the first contact surface and the second contact surface are oriented in the pressing direction.