利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

29 条记录 (耗时 0.026 秒)

    Image recording apparatus using optical beam
    2.
    发明授权
    Image recording apparatus using optical beam 失效
    使用光束的图像记录装置

    公开(公告)号：US5463410A

    公开(公告)日：1995-10-31

    申请号：US252625

    申请日：1994-06-01

    申请人： Seiji Uchiyama ,  Akio Noguchi ,  Yukihide Ushio ,  Shinpei Matsuo ,  Youji Serizawa ,  Makoto Takeuchi ,  Kazurou Yamada ,  Junichi Kato

    发明人： Seiji Uchiyama ,  Akio Noguchi ,  Yukihide Ushio ,  Shinpei Matsuo ,  Youji Serizawa ,  Makoto Takeuchi ,  Kazurou Yamada ,  Junichi Kato

    IPC分类号： B41J2/47 ,  G03G15/16 ,  G01D9/42

    CPC分类号： G03G15/1675 ,  B41J2/471 ,  G03G15/168 ,  G03G2215/1614 ,  G03G2215/1657

    摘要： In a laser beam printer, automatic optical quantity (APC) control is performed based on an optical quantity detection output to generate a laser beam having a predetermined quantity of light. In each scanning cycle, APC is effected by utilizing a period (unblanking period) in which the laser device is forcibly actuated to generate a horizontal synchronization signal. The unblanking period may be changed according to the print paper size or image formation/non-image-formation periods. Also, light quantity control may be effected through a plurality of scanning cycles before image formation and may be effected by utilizing the unblanking period during the period corresponding to the intervals of print sheets. Techniques also provided to prevent a transfer unit from being contaminated by toner images formed as a byproduct of APC.

    摘要翻译： 在激光束打印机中，基于光量检测输出执行自动光量（APC）控制，以产生具有预定量的光的激光束。 在每个扫描周期中，APC通过利用激光装置被强制致动以产生水平同步信号的周期（非白平衡周期）来实现。 可以根据打印纸尺寸或图像形成/非图像形成期间来改变非曝光时段。 此外，光量控制可以在图像形成之前通过多个扫描周期进行，并且可以通过在对应于打印片材的间隔的期间利用非曝光时段来实现。 还提供了防止转印单元被作为APC副产物形成的调色剂图像污染的技术。

    Image forming apparatus having density correction for image formation
    9.
    发明授权
    Image forming apparatus having density correction for image formation 失效
    具有图像形成密度校正的图像形成装置

    公开(公告)号：US5513012A

    公开(公告)日：1996-04-30

    申请号：US734905

    申请日：1991-07-24

    申请人： Makoto Takeuchi ,  Akio Noguchi ,  Yukihide Ushio ,  Shimpei Matsuo ,  Seiji Uchiyama ,  Kazuro Yamada ,  Yoji Serizawa

    发明人： Makoto Takeuchi ,  Akio Noguchi ,  Yukihide Ushio ,  Shimpei Matsuo ,  Seiji Uchiyama ,  Kazuro Yamada ,  Yoji Serizawa

    IPC分类号： G03G15/06 ,  G06K15/12 ,  H04N1/21 ,  H04N1/32

    CPC分类号： G03G15/065 ,  G06K15/1295

    摘要： An image forming apparatus for adjusting image density includes an input device for inputting a plurality of image type information and a discriminating device for discriminating the image type information in accordance with a signal other than a signal to be recorded. An image forming circuit, such as a printer, forms an image on the basis of image type information. A density adjusting circuit adjusts the image forming density of the image forming circuit in accordance with the input image type information. The discriminating device inputs a signal indicative of whether the input image type information indicates a text image or a graphics image, or whether it denotes Japanese or a European language (e.g., English). The discriminating device also inputs a signal indicative of the kind of font included in the input image type information or a signal indicative of a resolution for an output image to be formed by the printer.

    摘要翻译： 用于调整图像浓度的图像形成装置包括用于输入多个图像类型信息的输入装置和用于根据除了要被记录的信号之外的信号鉴别图像类型信息的识别装置。 诸如打印机的图像形成电路基于图像类型信息形成图像。 密度调节电路根据输入的图像类型信息调整图像形成电路的图像形成密度。 识别装置输入指示输入图像类型信息是指示文本图像还是图形图像的信号，或者是否表示日语或欧洲语言（例如英语）。 识别装置还输入指示包括在输入图像类型信息中的字体种类的信号或指示由打印机形成的输出图像的分辨率的信号。