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    • 5. 发明授权
    • Glossing device, fixing device, and image forming apparatus incorporating same
    • 光泽装置,固定装置和包含其的图像形成装置
    • US08849172B2
    • 2014-09-30
    • US13454671
    • 2012-04-24
    • Hiroyuki KuniiAkiyasu AmitaKunihiko TomitaSatoshi Muramatsu
    • Hiroyuki KuniiAkiyasu AmitaKunihiko TomitaSatoshi Muramatsu
    • G03G15/20
    • G03G15/6585G03G15/0189G03G2215/0132
    • A fixing device includes a first roller, a second roller, an endless rotary belt, a third roller, a heater, a belt cooler, and an upstream guide member. The second roller is disposed parallel to the first roller. The endless rotary belt is looped for rotation around the first and second rollers. The third roller is disposed opposite the first roller via the belt. The heater is positioned adjacent to the belt to heat the belt. The first and third rollers press against each other via the belt to form a nip therebetween. The belt cooler is disposed inside the loop of the belt downstream from the first roller and upstream from the second roller for cooling the belt. The belt cooler has a convex contact surface. The upstream guide member is disposed inside the loop of the belt upstream from the contact surface to guide the belt.
    • 定影装置包括第一辊,第二辊,环形旋转带,第三辊,加热器,带式冷却器和上游引导构件。 第二辊平行于第一辊设置。 环形旋转带环绕第一和第二辊旋转。 第三辊经由带与第一辊相对设置。 加热器位于皮带附近以加热皮带。 第一和第三辊经由带彼此压靠以在它们之间形成辊隙。 带式冷却器设置在第一辊下游的带的环中并且位于第二辊的上游,​​用于冷却带。 带式冷却器具有凸形的接触表面。 上游引导构件设置在接触表面上游的带的环内,以引导带。
    • 7. 发明授权
    • Fixing device and image forming apparatus using interdigitated rollers
    • 固定装置和使用交错辊的成像装置
    • US08331840B2
    • 2012-12-11
    • US12801238
    • 2010-05-28
    • Yukimichi SomeyaKunihiko TomitaSatoshi Muramatsu
    • Yukimichi SomeyaKunihiko TomitaSatoshi Muramatsu
    • G03G15/20
    • G03G15/2053G03G2215/2032
    • In a fixing device, a first roller and a first fixing member are provided inside a loop formed by a first belt. A pressing member is pressed against the first roller and the first fixing member via the first belt. The first roller includes at least two enlarged radius portions of enlarged radius arranged axially along the first roller, at least one reduced radius portion of reduced radius sandwiched between the adjacent two enlarged radius portions in an axial direction of the first roller, and a concave portion formed by the reduced radius portion and the adjacent two enlarged radius portions sandwiching the reduced radius portion. The first fixing member is interdigitated with the first roller with play between the first fixing member and the first roller.
    • 在固定装置中,第一辊和第一固定构件设置在由第一带形成的环内。 按压构件经由第一带按压在第一辊和第一固定构件上。 第一辊包括沿着第一辊轴向布置的至少两个放大半径的扩大半径部分,沿着第一辊的轴向夹持在相邻的两个扩大半径部分之间的至少一个减小的半径减小的半径部分,以及凹部 由缩小的半径部分和相邻的两个扩大半径部分夹在缩小半径部分之间形成。 第一固定构件与第一辊之间与第一固定构件和第一辊之间的间隙相互交叉。