发明授权
US06188857B1 Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit
失效
成像装置设置有具有内部齿轮单元的感光体单元，具有内部齿轮的保护器单元和内部齿轮单元
- 专利标题： Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit
- 专利标题（中）： 成像装置设置有具有内部齿轮单元的感光体单元，具有内部齿轮的保护器单元和内部齿轮单元
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申请号： US09323479申请日： 1999-06-01
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公开(公告)号： US06188857B1公开(公告)日： 2001-02-13
- 发明人: Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
- 申请人： Toshio Yamanaka , Yoshiharu Yoneda , Yasuji Yamauchi , Yasuo Kitabatake , Hideaki Kadowaki , Yoshikazu Harada
- 优先权： JP7-047516 19950307; JP7-048576 19950308; JP7-051538 19950310
- 主分类号： G03G1500
- IPC分类号： G03G1500
摘要：
An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.
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