公开(公告)号：US06580443B2

公开(公告)日：2003-06-17

申请号：US10010545

申请日：2001-11-08

申请人： Chiseki Yamaguchi ,  Takaaki Watanabe ,  Takuya Iwamura ,  Tomoyuki Yoshii ,  Toshiya Kusayanagi

发明人： Chiseki Yamaguchi ,  Takaaki Watanabe ,  Takuya Iwamura ,  Tomoyuki Yoshii ,  Toshiya Kusayanagi

IPC分类号： G03G1501

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0129 ,  G03G2215/0132 ,  G03G2215/0141 ,  G03G2215/0161

摘要： An intermediate belt made of an endless belt is provided by 45 degrees inclined horizontally and looped over two rollers at both its ends, and four photosensitive drums are provided in contact with the top surface of this intermediate belt. A reflection mirror is provided over each photosensitive drum, and a single polygon mirror is provided on almost the same level as these reflection mirrors. The polygon mirror is provided on the side of the reflection mirror of which optical path to the corresponding photosensitive drum is the longest so that the optical path lengths from the polygon mirror to the respective photosensitive drums are equal to each other.

摘要翻译： 由环形带制成的中间带在其两端处水平地倾斜45度并且环绕在两个辊上，并且四个感光鼓设置成与该中间带的顶表面接触。 在每个感光鼓上设置反射镜，并且在与这些反射镜几乎相同的高度上设置单个多面反射镜。 多面反射镜设置在反射镜的相对感光鼓的光路最长的一侧，使得从多面镜到相应感光鼓的光路长度彼此相等。