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公开(公告)号：EP2148247A3
公开(公告)日：2014-10-22
申请号：EP09165600.9
申请日：2009-07-15
发明人： Atsumi, Tetsuya , Aoki, Kunitoshi , Nagase, Yukio
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042
摘要： A toner amount measuring unit (507) irradiates a toner image formed on an image carrying member (106) with light, and an image capturing unit (703,704) captures an image of a reflected waveform according to light reflected by the toner image. Then, an amount of applied toner is calculated based on the peak position or peak height of the reflected waveform in accordance with information associated with the density of the toner image to be formed.
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公开(公告)号：EP1808734A1
公开(公告)日：2007-07-18
申请号：EP07000458.5
申请日：2007-01-10
IPC分类号： G03G15/00
CPC分类号： G03G15/5037
摘要： An image forming apparatus is provided in which on-surface potential unevenness of an image carrier can be suppressed, and with which an output image having excellent on-surface uniformity of color or the like can be obtained. The image forming apparatus includes: a photoconductive image carrier; charger which charges the image carrier; image exposing unit which exposes an image on a surface of the image carrier after the charging to form a latent electrostatic image; developing unit which develops the latent electrostatic image by adhering toner to the latent electrostatic image to form a toner image; and transfer charger which transfers the obtained toner image to a final supporting member such as plain paper.
摘要翻译： 提供一种图像形成设备，其中图像载体的表面电位不均匀性能够被抑制，并且其中可以获得具有优异的颜色等的表面均匀性的输出图像。 该图像形成设备包括：光电导图像载体; 为图像载体充电的充电器; 图像曝光单元，其在充电之后在图像载体的表面上曝光图像以形成静电潜像; 显影单元，其通过将调色剂附着到静电潜像来显影静电潜像以形成调色剂图像; 以及将所获得的调色剂图像转印到诸如普通纸的最终支撑部件的转印充电器。
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公开(公告)号：EP1747893A2
公开(公告)日：2007-01-31
申请号：EP06015837.5
申请日：2006-07-28
CPC分类号： H04N1/40037 , G06K15/1209 , G06K15/1223
摘要： The present invention further improves gradation characteristics from a highlight region to a high-density region. First, the correction processing receives image data, and an image attribute discrimination discriminates whether the data are related to a character/thin line or others on the basis of attribute information on a pixel of interest. If it is discriminated that the data are related to a character/thin line, a pattern matching to data stored in a line buffer is performed to obtain a pixel distance, and in accordance with the pixel distance, a correction amount is determined on the basis of an LUT set in a correction amount determination. Subsequently, on the basis of the determined correction amount, corrected image data are generated and output to the following step.
摘要翻译： 本发明进一步提高了从高亮区域到高密度区域的灰度特性。 首先，校正处理接收图像数据，并且图像属性识别基于关于感兴趣像素的属性信息来鉴别数据是否与字符/细线等相关。 如果区分数据与字符/细线相关，则执行与存储在行缓冲器中的数据匹配的模式以获得像素距离，并且根据像素距离，基于该距离确定校正量 设置在校正量确定中的LUT。 随后，基于确定的校正量，生成校正图像数据并将其输出到随后的步骤。
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公开(公告)号：EP1747893A3
公开(公告)日：2010-01-20
申请号：EP06015837.5
申请日：2006-07-28
CPC分类号： H04N1/40037 , G06K15/1209 , G06K15/1223
摘要： The present invention further improves gradation characteristics from a highlight region to a high-density region. First, the correction processing receives image data, and an image attribute discrimination discriminates whether the data are related to a character/thin line or others on the basis of attribute information on a pixel of interest. If it is discriminated that the data are related to a character/thin line, a pattern matching to data stored in a line buffer is performed to obtain a pixel distance, and in accordance with the pixel distance, a correction amount is determined on the basis of an LUT set in a correction amount determination. Subsequently, on the basis of the determined correction amount, corrected image data are generated and output to the following step.
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公开(公告)号：EP1808734B1
公开(公告)日：2009-10-14
申请号：EP07000458.5
申请日：2007-01-10
IPC分类号： G03G15/00
CPC分类号： G03G15/5037
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7.发明授权Method to correct aging of a photoconductor in an image forming apparatus using a potential attenuation map 有权方法，使用地图上的电位放缓来校正感光体的老化中的图像形成装置
公开(公告)号：EP1755005B1
公开(公告)日：2012-06-13
申请号：EP06015835.9
申请日：2006-07-28
IPC分类号： G03G15/00
CPC分类号： G03G15/5037
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公开(公告)号：EP1747893B1
公开(公告)日：2011-11-16
申请号：EP06015837.5
申请日：2006-07-28
CPC分类号： H04N1/40037 , G06K15/1209 , G06K15/1223
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9.发明公开Method to correct aging of a photoconductor in an image forming apparatus using a potential attenuation map 有权方法，使用地图上的电位放缓来校正感光体的老化中的图像形成装置
公开(公告)号：EP1755005A1
公开(公告)日：2007-02-21
申请号：EP06015835.9
申请日：2006-07-28
IPC分类号： G03G15/00
CPC分类号： G03G15/5037
摘要： Good images are formed without density irregularity even if an image supporting body varies with time. Potentials at developing locations after exposing the surface of an a-Si photoconductive body, which are recorded in a potential attenuation characteristic map, are compared with seven ranges A-G obtained by dividing the surface of the a-Si photoconductive body at every 6-volt interval to detect deviations of the potentials from a prescribed potential Vl (step S2). Individual blocks all over the surface of the a-Si photoconductive body are classified to A-G, and the exposure values are set in accordance with A-G so that Vl of the individual blocks on the surface of the a-Si photoconductive body belongs to D range (step S3). An input image undergoes image processing after its entire plane being divided into blocks corresponding to the surface of the photoconductive body (steps S4 and S5).
The recorded potential alternation characteristic map is compared with a correspondent initial map recorded when the photoconductive body was new.摘要翻译： 良好的图像而没有密度不规则FORMED即使图像承载体随时间变化。 电位处于发展的a-Si感光体，其是记录在电位衰减特性图的表面暴露后的位置，是与七个范围AG通过将a-Si感光体的表面以每6伏间隔获得相比 以检测来自一个规定的电位VL（步骤S2）的电位的偏差。 遍布在a-Si感光体的表面的各个块被分类到AG，和曝光值在雅舞蹈设定AG所以在a-Si感光体的表面上做了各个块的VL属于D档（ 步骤S3）。 图像处理下一个输入图像变为其整个面被划分成对应于光导主体的表面块之后（步骤S4和S5）。 记录的潜在交替特性曲线与记录当机体光导通讯员初始地图相比，有什么新的。
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公开(公告)号：EP0901277A2
公开(公告)日：1999-03-10
申请号：EP98307084.8
申请日：1998-09-03
IPC分类号： H04N1/407
CPC分类号： H04N1/407
摘要： When pixels in a two-dimensional matrix are divided into lines A and B in the column (or row) direction (sub-scanning direction) and two neighboring pixels in the row (or column) direction are subjected to gradation correction respectively using characteristic curves for lines A and B, the characteristic curve for line B unpreferably has a stepwise characteristic portion having a step when it is stored in an LUT, due to quantization errors unique to digital values. Hence, the characteristic curve for line A is set to be decreased by the amount corresponding to the step.
摘要翻译： 当二维矩阵中的像素被分成列（或行）方向（副扫描方向）的行A和B，并且行（或列）方向上的两个相邻像素分别使用特性曲线 对于线A和B，由于数字值唯一的量化误差，线B的特性曲线优选地具有逐步特征部分，当其存储在LUT中时具有步骤。 因此，线A的特性曲线被设定为减小对应于该步长的量。
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