首页>
外国专利>
PIXEL CLOCK GENERATOR, IMAGE FORMING APPARATUS, MAIN SCANNING MAGNIFICATION CORRECTING METHOD, MAIN SCANNING MAGNIFICATION CORRECTING PROGRAM, AND RECORDING MEDIUM
PIXEL CLOCK GENERATOR, IMAGE FORMING APPARATUS, MAIN SCANNING MAGNIFICATION CORRECTING METHOD, MAIN SCANNING MAGNIFICATION CORRECTING PROGRAM, AND RECORDING MEDIUM
展开▼
机译:像素时钟发生器,图像形成装置,主要扫描放大率校正方法,主要扫描放大率校正程序和记录介质
展开▼
页面导航
摘要
著录项
相似文献
摘要
PPROBLEM TO BE SOLVED: To provide an image forming apparatus which reduces costs by using a high-frequency clock common among pixel clock generators for a plurality of optical beams. PSOLUTION: A pixel clock generator comprises: a PLL part (51) which generates the high-frequency clock common among respective colors; a PWM clock generating part (57) which can designate the clock with any one of a reference cycle, a cycle shorter than the reference cycle, and a cycle longer than the reference cycle by dividing the frequency of the high-frequency clock so as to make the high-frequency clock a pixel clock; an internal synchronizing signal generating part (56) which generates a signal synchronizing with the pixel clock, by inputting the clock designated by the generating part (57); and a PWM data control part (58) which controls designated information on each pixel for the generating part (57). The control part (58) adjusts the frequency of the high-frequency clock so that the number of pixels for inserting the pixel clock with no reference cycle can be minimized, in terms of a color most easily causing unevenness in density. PCOPYRIGHT: (C)2005,JPO&NCIPI
展开▼