Roll-fusing assembly and method for thermal compensation in an
electrophotographic printer
    1.
    发明授权
    Roll-fusing assembly and method for thermal compensation in an electrophotographic printer 失效
    卷轴定影组件和电子照相打印机中的热补偿方法

    公开(公告)号:US5070231A

    公开(公告)日:1991-12-03

    申请号:US600751

    申请日:1990-10-18

    IPC分类号: G03G15/20

    摘要: A roll-fusing assembly for printing upon continuous length print stock of substantially different widths and thicknesses includes structure for compensating for differences in thermal expansion across the pressure roller when engaging differing print stock widths. In a preferred embodiment this includes stepped pressure roller sections of reduced diameters and a contacting heat transfer roller for normalizing surface temperatures across the width of the pressure roller. The disclosed method involves normalizing surface temperatures across the pressure roller to compensate for the differences in thermal expansion that will occur about the pressure roller exterior directly exposed to the heated fusing roller when handling relatively narrow continuous length print stock or stock of differing thicknesses.

    摘要翻译: 用于在具有基本上不同的宽度和厚度的连续长度的印刷品上印刷的卷筒组件包括用于补偿当接合不同的印刷原稿宽度时跨压力辊的热膨胀差异的结构。 在一个优选实施例中,这包括减小直径的阶梯式压力辊部分和用于使压力辊宽度上的表面温度归一化的接触传热辊。 所公开的方法涉及使压力辊上的表面温度标准化,以补偿当处理相对狭窄的连续长度的印刷材料或不同厚度的原料时,在直接暴露于加热定影辊的压力辊外部将发生的热膨胀差异。