发明名称 |
COLOR OPTICAL SCANNER AND COLOR IMAGE FORMING APPARATUS |
摘要 |
PROBLEM TO BE SOLVED: To apply a light source of lower power without deteriorating picture quality as a light source (LD) for emitting a monochromatic laser beam. SOLUTION: The color optical scanner is provided with a color printing mode for executing color printing and a monochromatic printing mode for executing monochromatic printing at a speed higher than the printing speed of the color printing mode. The optical efficiency of an optical component existing in a laser beam optical path from the light source up to an image surface is selected so that the optical efficiency in an optical path to be used for the monochromatic printing mode is larger than the optical efficiency in the other optical path. For instance, the value of the optical efficiency can be changed by the number of reflection mirrors existing in each optical path. COPYRIGHT: (C)2006,JPO&NCIPI |
申请公布号 |
JP2006259673(A) |
申请公布日期 |
2006.09.28 |
申请号 |
JP20050266019 |
申请日期 |
2005.09.13 |
申请人 |
TOSHIBA CORP;TOSHIBA TEC CORP |
发明人 |
SHIRAISHI TAKASHI |
分类号 |
G03G15/01;B41J2/44;G03G15/04;G03G15/043;H04N1/04;H04N1/113 |
主分类号 |
G03G15/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|