| 摘要 |
A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least a portion of which is disposed between the developing roller and the casing, the seal member including a fabric member having plural fibers extending in a first direction and plural second fibers extending in a second direction, wherein the plural first fibers and the plural second fibers are intersecting each other, and each of the fibers of the fabric member include a circumferential surface which has a first heat radiation amount per unit area, and an end surface having a second heat radiation amount per unit area larger than the first heat radiation amount, and a heat radiation member disposed at an end portion of the seal member in an axial direction of the developing roller and is configured to contact the end surfaces of the fibers. |
