| 摘要 |
PURPOSE:To make a device small-sized and to save energy, by supplying the rotation driving force of a developing roll of a developing part and a fixation roll of a pressure fixation part, from a single driving source. CONSTITUTION:A pressure fixation machine 20 is constituted of a driving roll 21, driven rolls 22, 23, a side plate 24, a shaft 25, a pressure spring 26 and a bearing guide 27. Also, a sleeve 2 of a magnet roll 10 of a developing machine 11 is driven by pulleys 16R, 17R and a belt 18R, and is rotated in the direction as indicated with an arrow B. As a recording medium is moved in the direction as indicated with an arrow A, a developer 3 in the developing machine 11 is rotated in the direction as indicated with the arrow B and is supplied. Therefore, in case when a cylindrical magnet 1 is fixed, it is necessary for the developing machine to rotate the sleeve 2 in the direction as indicated with the arrow B, and this rotation is executed by a driven roll D of the pressure fixation machine 20. |
