发明名称 |
Exposure apparatus for image formation and image formation method |
摘要 |
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.
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申请公布号 |
US6433803(B2) |
申请公布日期 |
2002.08.13 |
申请号 |
US20010826199 |
申请日期 |
2001.04.04 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
MUTOU YOSHINORI;TOYOSHIMA TETSURO;IWAMATSU TADASHI;AZUMA NOBUYUKI;NAKAJIMA YOSHINORI |
分类号 |
B41J2/44;G03G15/04;H04N1/29;H04N1/40;(IPC1-7):B41J2/385;G03G13/04 |
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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