| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a light source head by which high-speed optical writing is achieved with low price and low electric power, and to provide an image forming apparatus using the same. <P>SOLUTION: The self-scanning type light source head includes a substrate, a surface emitting semiconductor laser arranged in an array on the substrate, and a thyristor as a switching element that selectively turns on/off the emission of the surface emitting semiconductor laser. The invention also refers to an image forming apparatus using the light source head. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
