| 主权项 |
1. A developer cartridge comprising:
a casing configured to accommodate developer therein; a first gear rotatable from a first position to a second position about a first axis extending in an axial direction, the first gear including:
a first surface rotatable with the first gear, the first surface extending in a circumferential direction of the first gear, and the first surface being contactable with a portion of an image forming apparatus in a case where the first gear is in the first position;a second surface rotatable with the first gear, the second surface extending in the circumferential direction, the second surface separated from the first surface in the circumferential direction, and the second surface being contactable with the portion of the image forming apparatus in a case where the first gear is in the second position;a circular plate rotatable about the first axis, the circular plate including a first end face facing an exterior surface of the casing in the axial direction and a second end face opposite to the first end face in the axial direction; anda column extending in the axial direction from the second end face; an agitator rotatable about a second axis extending in the axial direction, the second axis being different from the first axis, and the agitator including a first end portion and a second end portion separated from the first end portion in the axial direction; a small-diameter gear positioned at the exterior surface, the small-diameter gear being mounted to the one of the first end portion and the second end portion, and the small-diameter gear being rotatable with the agitator; and a large-diameter gear positioned at the exterior surface, the large-diameter gear having a diameter being greater than a diameter of the small-diameter gear, the large-diameter gear positioned farther from the exterior surface than the small-diameter gear in the axial direction, the large-diameter gear being rotatable with the small-diameter gear about the second axis, wherein a length of the second surface in the circumferential direction is greater than a length of the first surface in the circumferential direction, wherein the first surface is positioned at the second end face, wherein the second surface is positioned at the second end face, wherein each of the first surface and the second surface is positioned farther from the exterior surface of the casing than the second end face in the axial direction, wherein each of the first surface and the second surface is positioned apart from the second end face, wherein each of the first surface and the second surface is positioned at a circumference of the column, wherein one of the first end portion and the second end portion penetrates through the casing, wherein the large-diameter gear is positioned closer to the second end face in the axial direction than both the first surface and the second surface, and wherein the column is positioned outside of a rotational circumference of the large-diameter gear defined by rotation of the large-diameter gear. |
