Recording-medium ejecting device and image forming apparatus

A recording-medium ejecting device comprising:

• a first rotating member that rotates;
• and
• a second rotating member that faces the first rotating member and that is rotated by rotation of the first rotating member,
• wherein at least one of the first rotating member or the second rotating member is provided with projections and recesses at both ends thereof, the projections and recesses being alternately arranged in a circumferential direction, the projections extending continuously from a rotating member body, which faces the other rotating member, in an axial direction and having a diameter greater than a diameter of the rotating member body, the recesses extending continuously from the rotating member body in the axial direction and having a diameter smaller than the diameter of the rotating member body, the projections at one end of the rotating member body and the projections at the other end of the rotating member body being at different positions in a circumferential direction.

An image forming apparatus comprising:

• an image forming unit that forms an image on a recording medium;
• a transport path along which the recording medium having the image formed thereon by the image forming unit is transported;
• a recording-medium ejecting device provided at a downstream end of the transport path in a direction in which the recording medium is transported;
• and
• a stacking portion on which the recording medium ejected by the recording-medium ejecting device is stacked,
• wherein the recording-medium ejecting device includes
• a first rotating member that rotates, and
• a second rotating member that faces the first rotating member and that is rotated by rotation of the first rotating member, and
• wherein at least one of the first rotating member or the second rotating member is provided with projections and recesses at both ends thereof, the projections and recesses being alternately arranged in a circumferential direction, the projections extending continuously from a rotating member body, which faces the other rotating member, in an axial direction and having a diameter greater than a diameter of the rotating member body, the recesses extending continuously from the rotating member body in the axial direction and having a diameter smaller than the diameter of the rotating member body.