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1. 发明授权

US08274541B2 Light scanning unit having thermal expansion control unit 有权
标题翻译：具有热膨胀控制单元的光扫描单元
公开(公告)号：US08274541B2
公开(公告)日：2012-09-25
申请号：US12761108
申请日：2010-04-15
申请人： Byoung-Ho Yoo
发明人： Byoung-Ho Yoo
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： B41J2/473 , G03G15/04036 , G03G15/0435 , G03G15/326
摘要： A light scanning unit including: a housing including optical components disposed on an optical path, wherein an electrostatic latent image is formed by scanning light beams respectively onto a plurality of photosensitive drums, wherein a plurality of slits are formed, in a sub-scan direction, in both side frames of the housing which face each other; and a thermal expansion control unit disposed on both of the side frames and having a lower thermal expansion coefficient than the thermal expansion coefficient of the housing. Since the change of the scan line due to the thermal deformation may be reduced in the light scanning unit, the light scanning unit may be efficiently applied to electrophotographic imaging apparatuses in any orientation. For example, the light scanning unit may be installed in an electrophotographic imaging apparatus so as to be parallel to or perpendicular to the main body of the electrophotographic imaging apparatus.
摘要翻译：一种光扫描单元，包括：包括设置在光路上的光学部件的壳体，其中通过将光束分别扫描到多个感光鼓上形成静电潜像，所述多个感光鼓在副扫描方向上形成多个狭缝在彼此相对的壳体的两个侧框架中; 以及热膨胀控制单元，其设置在两个侧框架上并且具有比所述壳体的热膨胀系数更低的热膨胀系数。由于在光扫描单元中由于热变形引起的扫描线的变化可能会降低，因此光扫描单元可以以任何方向有效地应用于电子照相成像设备。例如，光扫描单元可以安装在电子照相成像设备中，以便平行于或垂直于电子照相成像设备的主体。

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