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    • 62. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US08290413B2
    • 2012-10-16
    • US13036553
    • 2011-02-28
    • Kazuhiro KobayashiKouji AmanaiToshiyuki UchidaNarumi SugitaKenji Tomita
    • Kazuhiro KobayashiKouji AmanaiToshiyuki UchidaNarumi SugitaKenji Tomita
    • G03G15/01
    • G03G15/0194G03G2215/00021G03G2215/0132
    • An image forming apparatus includes a first image carrier facing an intermediate transfer belt, a primary transfer unit primarily transferring images on the first image carrier onto the intermediate transfer belt, a secondary transfer roller facing the intermediate transfer belt secondarily transferring images on the intermediate transfer belt onto a recording medium, a second image carrier provided upstream/downstream of a secondary transfer position in a recording medium conveying direction, a direct transfer unit directly transferring images on the second image carrier onto the recording medium, a recording medium carriage belt rotatably stretched across roller members including the secondary transfer roller supporting and conveying the recording medium to pass a direct transfer position and the secondary transfer position, and a displacement unit displacing the secondary transfer roller between a contact position where the recording medium carriage belt contacts the intermediate transfer belt and a separate position where it is separated therefrom.
    • 图像形成装置包括面向中间转印带的第一图像载体,主转印单元主要将第一图像载体上的图像转印到中间转印带上,二次转印辊面对中间转印带,二次转印中间转印带上的图像 在记录介质上,设置在记录介质输送方向上的二次转印位置的上游/下游的第二图像载体,将第二图像载体上的图像直接转印到记录介质上的直接转印单元,可旋转地横跨 滚子构件,包括支撑和传送记录介质的二次转印辊,以通过直接转印位置和二次转印位置;以及位移单元,将二次转印辊移动到记录介质托架带接触中间tr的接触位置 安全带和分离的位置。