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    • 2. 发明授权
    • Image forming apparatus capable of effectively initializing a laser drive circuit
    • 能够有效地初始化激光驱动电路的图像形成装置
    • US07508408B2
    • 2009-03-24
    • US11552675
    • 2006-10-25
    • Yoshio KanzakiHidetoshi KanaiKatsuhiko MaedaShinya Tanaka
    • Yoshio KanzakiHidetoshi KanaiKatsuhiko MaedaShinya Tanaka
    • B41J2/435B41J2/47
    • G03G15/043B41J2/471
    • An image forming apparatus capable of properly performing an initialization of a control circuit including a laser diode driver circuit, includes a light source, a photoreceptor, a deflector, and a controller. The photoreceptor is built in the light source to detect incident light. The deflector deflects the laser light into a scanning laser beam. The controller controls the light source to light on and off, and obtains a laser light emission amount of the light source relative to a current flowing through the light source based on a detection of incident light by the photoreceptor. The controller determines the laser light emission amount of the light source during a time period when a path of the laser light from the light source is headed to a reflection surface of the deflector at an incident angle of approximately ninety degrees.
    • 能够适当地执行包括激光二极管驱动电路的控制电路的初始化的图像形成装置包括光源,感光体,偏转器和控制器。 感光体内建在光源中,以检测入射光。 偏转器将激光偏转成扫描激光束。 控制器控制光源的点亮和关闭,并且基于感光体对入射光的检测,相对于流经光源的电流获得激光发射量。 所述控制器在来自所述光源的激光的路径以大约90度的入射角朝向所述偏转器的反射面的时间期间,决定所述光源的激光发光量。
    • 6. 发明授权
    • Compact BI-color electrophotographic image forming apparatus
    • 紧凑型双色电子照相成像设备
    • US5376994A
    • 1994-12-27
    • US18429
    • 1993-02-16
    • Takashi MamaYuji YasudaKan TomitaFumihiro MiyagawaShinji KobayashiTakanobu FujiokaHidetoshi KanaiYoshiki Yoshida
    • Takashi MamaYuji YasudaKan TomitaFumihiro MiyagawaShinji KobayashiTakanobu FujiokaHidetoshi KanaiYoshiki Yoshida
    • G03G15/01H04N1/04H04N1/50G03G15/00G03G15/04
    • H04N1/04G03G15/011H04N1/506H04N1/0464
    • An image forming apparatus having deflection scanning type and line type exposing devices and first and second developing devices arranged around a photoconductive element, so that parts around the photoconductive element are arranged with ease to promote the miniaturization of the apparatus. The exposing devices are selected based on the principle that the image quality is enhanced for an image of particular color and is lowered for an image of another color expected to be printed less frequently. Specifically, the deflection scanning type exposing device forms the image of the particular color, and the line type exposing device which has an inherently long optical path and simple structure forms the image of another color. Fans are provided to produce cooling air flow to the line type exposing device and to draw out toner dirt and ozone produced by the charger associated therewith. The line type exposing device and the associated charger are electrically insulated from each other and mounted in a common casing. Cleaning elements are provided to clean the charger and the line type exposing device during withdrawal of these elements from the photoconductive element.
    • 具有偏转扫描型和线型曝光装置的图像形成装置以及围绕光电导元件布置的第一和第二显影装置,使得光敏元件周围的部分容易布置以促进装置的小型化。 基于对于特定颜色的图像增强图像质量并且对于预期要打印的颜色较少的图像的图像降低的原理,选择曝光装置。 具体地,偏转扫描型曝光装置形成特定颜色的图像,并且具有固有的长光程和简单结构的线型曝光装置形成另一种颜色的图像。 提供风扇以产生冷却空气流到线型曝光装置并且抽出与其相关联的充电器产生的调色剂污垢和臭氧。 线型曝光装置和相关充电器彼此电绝缘并安装在公共壳体中。 提供清洁元件以在将这些元件从光导元件中取出时清洁充电器和线型曝光装置。