发明名称 |
Image forming apparatus with overlapped light fluxes forming a dot |
摘要 |
A photosensitive body has a photosensitive layer. An optical scanning device has a deflector deflecting a light flux emitted from a light source, and scans the surface of the photosensitive body by the thus-deflected light flux. A dot is formed at a center between adjacent light fluxes as a result of the adjacent light fluxes being overlapped with one another in a sub-scan direction. A ratio of a static beam-spot diameter Ws in the sub-scan direction on the surface of the photosensitive body defined by 1/e<2 >of the maximum value in the exposure distribution of the beam spot to an interval L between adjacent scan lines satisfies the following formula: 1.2<WS/L<4.5.
|
申请公布号 |
US6803941(B2) |
申请公布日期 |
2004.10.12 |
申请号 |
US20010765608 |
申请日期 |
2001.01.22 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
HAYASHI YOSHINORI;KOUCHIWA TAIRA;EBI YUTAKA |
分类号 |
G02B26/10;G06K15/12;(IPC1-7):B41J2/47 |
主分类号 |
G02B26/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|