发明名称 |
Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector |
摘要 |
An image forming apparatus includes an image bearing member having a photosensitive surface and an optical writing apparatus generating a laser beam modulated according to image data. The optical writing apparatus includes a housing, an optical deflector, an f-theta lens and a separator. The optical deflector is configured to rotate to deflect the laser beam. The f-theta lens is configured to correct the laser beam deflected by the optical deflector and to transmit a corrected laser beam towards the image bearing member. The separator is configured to separate an inside space of the housing into at least two sections including a first section in which the optical deflector is mounted and a second section in which the f-theta lens is mounted. The separator includes a heat resistant transparent plate disposed at a position of crossing passage of the laser beam between the optical deflector and the f-theta lens.
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申请公布号 |
US2005052719(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
US20040857019 |
申请日期 |
2004.06.01 |
申请人 |
TOMITA YASUMASA;YOSHIZAWA HIROSHI;KIMURA TETSUYA;YOKOYAMA MASATO;OKAMOTO KEIJI;SERIZAWA KEIICHI |
发明人 |
TOMITA YASUMASA;YOSHIZAWA HIROSHI;KIMURA TETSUYA;YOKOYAMA MASATO;OKAMOTO KEIJI;SERIZAWA KEIICHI |
分类号 |
B41J2/44;B41J2/47;G02B7/02;G02B26/10;G02B26/12;G02B27/00;H04N1/113;H04N1/12;(IPC1-7):G02B26/08 |
主分类号 |
B41J2/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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