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    Exposure apparatus for image formation and image formation method
    1.
    发明授权
    Exposure apparatus for image formation and image formation method 失效
    用于图像形成和图像形成方法的曝光装置

    公开(公告)号：US6433803B2

    公开(公告)日：2002-08-13

    申请号：US82619901

    申请日：2001-04-04

    Applicant: SHARP KK

    Inventor： MUTOU YOSHINORI ,  TOYOSHIMA TETSURO ,  IWAMATSU TADASHI ,  AZUMA NOBUYUKI ,  NAKAJIMA YOSHINORI

    IPC: B41J2/44 ,  G03G15/04 ,  H04N1/29 ,  H04N1/40 ,  B41J2/385 ,  G03G13/04

    CPC classification number: H04N1/40043 ,  H04N1/40037

    Abstract: An exposure apparatus for image formation uses power control means provided to a laser driver for controlling exposure energy and accordingly forming an image. Specifically, exposure energy is varied depending on an isolated-dot pattern and an isolated-line pattern by changing the pulse height (drive power) of a drive pulse for each dot. Both of the isolated-line and isolated-dot patterns of a high resolution can thus be reproduced with a high image quality without increase of cost due to requirements for accuracy in processing and positioning of a lens and without decrease of life of a photoreceptor due to a decreased thickness of its photosensitive layer.

    Abstract translation: 用于图像形成的曝光装置使用提供给激光驱动器的功率控制装置来控制曝光能量并因此形成图像。 具体地，通过改变每个点的驱动脉冲的脉冲高度（驱动功率），曝光能量根据孤立点图形和隔离线图案而变化。 因此，由于对透镜的加工和定位的精度的要求以及由于感光体的寿命的降低而导致的高分辨率的孤立线和孤立点图案，因此可以以高图像质量再现高成像质量而不增加成本 其感光层的厚度减小。

    8.
    发明专利
    未知

    公开(公告)号：DE60140638D1

    公开(公告)日：2010-01-14

    申请号：DE60140638

    申请日：2001-04-04

    Applicant: SHARP KK

    Inventor： MUTOU YOSHINORI ,  TOYOSHIMA TETSURO ,  IWAMATSU TADASHI ,  AZUMA NOBUYUKI ,  NAKAJIMA YOSHINORI

    IPC: B41J2/44 ,  H04N1/40 ,  G03G15/04 ,  H04N1/29

    Abstract: An exposure apparatus for image formation uses power control means provided to a laser driver (6) for controlling exposure energy and accordingly forming an image. Specifically, exposure energy is varied depending on an isolated-dot pattern and an isolated-line pattern by changing the pulse height (drive power) of a drive pulse for each dot. Both of the isolated-line and isolated-dot patterns of a high resolution can thus be reproduced with a high image quality without increase of cost due to requirements for accuracy in processing and positioning of a lens and without decrease of life of a photoreceptor (11) due to a decreased thickness of its photosensitive layer.

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