发明名称 |
Image-writing device and method and image-forming apparatus reducing dot width variations in relation to a screen angle |
摘要 |
An image-writing device writes a dot image onto an image-receiving body in such a way that the dots align at a certain screen angle. The dots are written by an array of writing elements such as light-emitting diodes. The image-writing device has a memory that stores compensation parameters that compensate for non-uniformity of the writing elements. The compensation parameters are also calculated to produce dots with approximately uniform widths as viewed in the screen-angle direction. When driven according to the compensation parameters, the writing elements produce a dot image that is comparatively free of dot-width irregularities aligned in the screen-angle direction, which is the direction in which such irregularities are most noticeable.
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申请公布号 |
US6897982(B1) |
申请公布日期 |
2005.05.24 |
申请号 |
US20000624941 |
申请日期 |
2000.07.25 |
申请人 |
OKI DATA CORPORATION |
发明人 |
ASHIDA KENICHI;NAKAJIMA NORIO |
分类号 |
B41J2/44;B41J2/45;B41J2/455;G06K15/00;G06K15/12;H04N1/23;H04N1/29;(IPC1-7):G06K15/00 |
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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