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    • 2. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20070159657A1
    • 2007-07-12
    • US11649195
    • 2007-01-03
    • Issei NakanoJun Nakai
    • Issei NakanoJun Nakai
    • G06F15/00
    • H04N1/40037
    • An input dither pattern determiner divides an input dither image to plural blocks, and determines an input dither pattern for each block. An output dither image portion converts the input dither pattern for each block to an output dither pattern. A reference emission time determiner portion determines a reference emission time for each block based on dark electric potential distribution and intermediate sensitivity distribution of a photoconductive drum, a light intensity distribution of a laser beam in a main scanning direction, and the output dither pattern. An area emission time calculator determines area emission time for each area based on a reference emission time for each block. An actual emission time calculator adjusts emission time for each area so that differences between reference emission times of blocks adjacent one another in the main scanning direction become a predetermined value or lower, and calculates actual emission time for each area.
    • 输入抖动图案确定器将输入抖动图像分割成多个块,并且确定每个块的输入抖动图案。 输出抖动图像部分将每个块的输入抖动图案转换为输出抖动图案。 参考发光时间确定器部分基于感光鼓的暗电位分布和中间灵敏度分布,激光束在主扫描方向上的光强度分布和输出抖动图案来确定每个块的参考发射时间。 区域发射时间计算器基于每个块的参考发射时间来确定每个区域的区域发射时间。 实际发光时间计算器调整每个区域的发射时间,使得在主扫描方向上彼此相邻的块的参考发射时间之间的差异变为预定值或更低,并且计算每个区域的实际发射时间。
    • 4. 发明授权
    • Image forming apparatus capable of improving an image quality of a barcode while suppressing deterioration in a quality of an image
    • 能够在抑制图像质量劣化的同时提高条形码的图像质量的图像形成装置
    • US08218199B2
    • 2012-07-10
    • US12354441
    • 2009-01-15
    • Satoshi UemuraIssei Nakano
    • Satoshi UemuraIssei Nakano
    • G06K1/00
    • H04N1/6072
    • An image forming apparatus includes an image formation portion forming an image onto a recording medium in an electro-photographic process. An acquisition portion acquires image data and a storage portion stores in advance first and second image formation conditions for the electro-photographic process. A condition setting portion sets the first image-formation condition for an image formation operation, if data indicating a bar code is not included in image data acquired by the acquisition portion, and sets the second image formation condition for an image formation operation if image data indicating a bar code is included in image data acquired by the acquisition portion. A control portion allows the image formation portion to execute an image formation operation based on image data acquired by the acquisition portion according to the image formation condition set by the condition setting portion.
    • 图像形成装置包括在电子照相处理中在记录介质上形成图像的图像形成部。 获取部分获取图像数据,存储部分预先存储用于电子照相处理的第一和第二图像形成条件。 条件设定部分设定图像形成操作的第一图像形成条件,如果指示条形码的数据不包括在由获取部分获取的图像数据中,并且如果图像数据设置用于图像形成操作的第二图像形成条件 指示由获取部分获取的图像数据中包括条形码。 控制部分允许图像形成部分根据由条件设置部分设置的图像形成条件,基于由获取部分获取的图像数据执行图像形成操作。
    • 5. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20060193019A1
    • 2006-08-31
    • US11363977
    • 2006-02-27
    • Issei Nakano
    • Issei Nakano
    • G03F3/08
    • G03G15/326G03G15/043
    • The object of this invention is to provide an image forming apparatus which is capable of obtaining an appropriate toner density with respect also to low exposure amount value (low gradation value) of the formed image, by using the conversion rule sufficiently approximating the characteristic between an exposure amount and an output time as a conversion rule for converting indicating values such as exposure amount value and gradation value into the output time (performing output control of the beam light to a light source). In this invention, the conversion rule is nonlinear so as to sufficiently approximate the characteristic between the exposure amount and the output time.
    • 本发明的目的是提供一种图像形成装置,其能够通过使用足够近似于图像形成装置之间的特性的转换规则,获得形成图像的低曝光量值(低灰度值)的适当调色剂浓度 曝光量和输出时间作为将曝光量值和灰度值等指示值转换为输出时间的转换规则(对光源进行光束的输出控制)。 在本发明中,转换规则是非线性的,以便充分接近曝光量与输出时间之间的特性。
    • 7. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20090185206A1
    • 2009-07-23
    • US12354441
    • 2009-01-15
    • Satoshi UemuraIssei Nakano
    • Satoshi UemuraIssei Nakano
    • H04N1/60
    • H04N1/6072
    • An image forming apparatus includes an image formation portion forming an image onto a recording medium in an electro-photographic process. An acquisition portion acquires image data and a storage portion stores in advance first and second image formation conditions for the electro-photographic process. A condition setting portion sets the first image-formation condition for an image formation operation, if data indicating a bar code is not included in image data acquired by the acquisition portion, and sets the second image formation condition for an image formation operation if image data indicating a bar code is included in image data acquired by the acquisition portion. A control portion allows the image formation portion to execute an image formation operation based on image data acquired by the acquisition portion according to the image formation condition set by the condition setting portion.
    • 图像形成装置包括在电子照相处理中在记录介质上形成图像的图像形成部。 获取部分获取图像数据,存储部分预先存储用于电子照相处理的第一和第二图像形成条件。 条件设定部分设定图像形成操作的第一图像形成条件,如果指示条形码的数据不包括在由获取部分获取的图像数据中,并且如果图像数据设置用于图像形成操作的第二图像形成条件 指示由获取部分获取的图像数据中包括条形码。 控制部分允许图像形成部分根据由条件设置部分设置的图像形成条件,基于由获取部分获取的图像数据执行图像形成操作。