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1. 发明授权

US06285800B1 Apparatus and method for processing image 有权
标题翻译：图像处理装置及方法
公开(公告)号：US06285800B1
公开(公告)日：2001-09-04
申请号：US09179435
申请日：1998-10-27
申请人： Tsutomu Yamazaki , Naoki Toyoshi , Kentaro Katori , Shinichi Takemoto
发明人： Tsutomu Yamazaki , Naoki Toyoshi , Kentaro Katori , Shinichi Takemoto
IPC分类号： H04N1405
CPC分类号： H04N1/4058
摘要： An apparatus and method for processing an image which are capable of producing a printed image satisfying both resolution and reproducibility of gradation. This method admits as an input the RGB data of the size of one pixel and converts this input into lightness data and density data. When a target pixel is determined to correspond to a non-edge portion, the method performs a computation for finding the remainder 1 of X/3 and the remainder m of Y/3 from the coordinates (X,Y) of the target pixel thereby deciding which of the total of nine pixels of a non-edge grade dither pattern is to be extracted, and allocates the position d(l,m) to the extracted pixel. On the other hand, when the target pixel is determined to correspond to an edge portion, an edge grade dither pattern corresponding to the density of the target pixel is allocated directly to the target pixel. The processing of conversion into the non-edge grade dither pattern d(l,m) or the processing of conversion into the edge grade dither patter which is performed as described above is carried out on all the pixels which have been read, depending on the determination of whether the target pixel corresponds to the non-edge portion or the edge portion, and the converted data obtained consequently is emitted.
摘要翻译：一种用于处理能够产生满足灰度分辨率和再现性的打印图像的图像的装置和方法。该方法允许输入一个像素大小的RGB数据，并将该输入转换成亮度数据和密度数据。当确定目标像素对应于非边缘部分时，该方法执行用于从目标像素的坐标（X，Y）找到X / 3的余数1和Y / 3的余数m的计算，从而决定要提取非边缘级抖动图案的九个像素中的哪一个，并且将所述位置d（l，m）分配给所提取的像素。另一方面，当确定目标像素对应于边缘部分时，将与目标像素的密度相对应的边缘等级抖动图案直接分配给目标像素。取决于所读取的所有像素，执行转换为非边缘级抖动图案d（l，m）的处理或转换为如上所述执行的边缘级抖动图案的处理确定目标像素是否对应于非边缘部分或边缘部分，并且发射由此获得的转换数据。

2. 发明申请

US20090175636A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090175636A1
公开(公告)日：2009-07-09
申请号：US12332664
申请日：2008-12-11
申请人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
发明人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
IPC分类号： G03G15/00 , G03G21/20 , G03G15/08
CPC分类号： G03G15/065 , G03G15/0887
摘要： To prevent image defects such as fog and irregularities caused by the accumulation of the oppositely charged toner by flying the toner toward a photoreceptor to compulsorily consume the toner even though the toner is oppositely charged toner having a small charged amount. A potential difference between the photoreceptor and the development roller is set at a value at which the normally charged toner on the development roller can be flown toward the photoreceptor in the development phase at the time of compulsorily consuming the toner, and this potential difference is set at a value at which the flown normally charged toner can be returned to the development roller in the recovery phase. A development duty and a frequency f are set in such a way that a time period in the development phase is larger than a time taken for the normally charged toner on the development roller to fly to a point located midway between the development roller and the photoreceptor and is smaller than a time taken for arriving at the photoreceptor, and a time period in the recovery phase is larger than a time taken before the normally charged toner arrived at the point located midway between the development roller and the photoreceptor arrives at the photoreceptor, returns to the development roller to beaten out the oppositely charged toner and the oppositely charged toner beaten out flies to the photoreceptor.
摘要翻译：为了防止由于相反充电的调色剂的积聚引起的图像缺陷，例如通过将调色剂朝向感光体飞行而强制消耗调色剂，即使调色剂具有相反电荷的带电量小的调色剂。感光体和显影辊之间的电位差被设定为在强制消耗调色剂时显影辊上的正常带电的调色剂能够在显影阶段中朝向感光体流动的值，并且设定该电位差在正常充电的调色剂可以在恢复阶段返回到显影辊的值。显影负荷和频率f被设定为使得显影阶段的时间段大于显影辊上的正常充电的调色剂飞行到位于显影辊和感光体之间的位置的时间并且小于到达感光体所需的时间，并且恢复阶段的时间段大于在正常充电的调色剂到达位于显影辊和感光体之间的位置到达感光体的时间，返回到显影辊，以殴打带相反电荷的调色剂，并将带相反电荷的调色剂扑灭到感光体中。

3. 发明申请

US20060083549A1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US20060083549A1
公开(公告)日：2006-04-20
申请号：US11020251
申请日：2004-12-27
申请人： Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Akira Hirota , Naotoshi Kawai , Kentaro Katori
发明人： Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Akira Hirota , Naotoshi Kawai , Kentaro Katori
IPC分类号： G03G15/22
CPC分类号： G03G21/0064 , G03G2215/0119
摘要： It is intended to provide an image forming apparatus capable of conducting charge adjustment of post-transfer residual toner appropriately by securing a contact area of a temporarily-collecting member and an electrode, without applying excessive deformation load to the temporarily-collecting member. There are arranged a brush roller for temporarily collecting post-transfer residual toner, and an electrode of which inwardly-curved face being in contact with the brush roller in a toner charge apparatus. Thereby, charged-in-opposite-polarity toner, out of post-transfer residual toner, is collected by the brush roller, polarity of the toner is reversed to original polarity, and then, returned to a photosensitive drum. The inner face of the electrode, i.e., a contact face of the electrode and the brush roller is formed in an inwardly-curved face. Thereby, a large contact area and light pushing force of the electrode to the brush roller can go together.
摘要翻译：旨在提供一种图像形成装置，其能够通过确保临时收集构件和电极的接触面积而适当地进行后转印残留调色剂的电荷调节，而不对临时收集构件施加过大的变形负荷。布置有用于临时收集转印后残留调色剂的刷辊，以及在调色剂充电装置中与刷辊接触的向内弯曲面的电极。由此，转印后的残留调色剂中的带电的相反极性调色剂由刷辊收集，调色剂的极性反转到原始极性，然后返回到感光鼓。电极的内表面，即电极和刷辊的接触面形成为向内弯曲的面。因此，电极对刷辊的大的接触面积和轻推力可以一起走。

4. 发明授权

US06388768B2 Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image 失效
标题翻译：图像形成装置即使在由复印图像制成的复印件中也能够在颜色，细线和灰度的再现性方面表现出色
公开(公告)号：US06388768B2
公开(公告)日：2002-05-14
申请号：US09020281
申请日：1998-02-09
申请人： Yoshinobu Hada , Yukihiko Okuno , Masahiro Kouzaki , Kentaro Katori , Katsuyuki Hirata
发明人： Yoshinobu Hada , Yukihiko Okuno , Masahiro Kouzaki , Kentaro Katori , Katsuyuki Hirata
IPC分类号： B41B100
CPC分类号： H04N1/6033 , G03G15/01 , G03G2215/00042 , G03G2215/00063 , G03G2215/018 , H04N1/4078
摘要： An image forming apparatus for forming an image with few defects even when making a copy from a copied image. When forming an image, a standard pattern is formed outside the image forming area in accordance with standard pattern data for color correction. When reading the image together with the standard pattern formed above, the color correction conditions for the image data are modified in accordance with the comparison result between the read standard pattern data and the standard pattern data for color correction. Copying is then performed on a copying paper.
摘要翻译：一种图像形成装置，即使在从复印图像进行复制时也可以形成缺陷少的图像。当形成图像时，根据用于颜色校正的标准图案数据，在图像形成区域外部形成标准图案。当与上述形成的标准图案一起读取图像时，根据读取的标准图案数据和用于颜色校正的标准图案数据之间的比较结果来修改图像数据的颜色校正条件。然后在复印纸上进行复印。

5. 发明授权

US5949963A Image formation apparatus exposing photoconductor according to image density data to form image thereon 失效
标题翻译：图像形成装置根据图像浓度数据曝光光电导体以在其上形成图像
公开(公告)号：US5949963A
公开(公告)日：1999-09-07
申请号：US814920
申请日：1997-03-12
申请人： Katsuyuki Hirata , Kentaro Katori , Yoshinobu Hada , Hironobu Nakata , Yoshihiko Hirota
发明人： Katsuyuki Hirata , Kentaro Katori , Yoshinobu Hada , Hironobu Nakata , Yoshihiko Hirota
IPC分类号： B41J2/52 , B41J2/44 , B41J2/47 , H04N1/40 , H04N1/405 , H04N1/407 , B41B15/00 , B41J2/385
CPC分类号： H04N1/40037 , B41J2/471 , H04N1/407
摘要： In a digital full color copying machine, one pixel on a photoconductor is divided into four subdivided small pixels. Functions a-d are assigned to each subdivided small pixel. Functions a-d are linear functions with density data as a parameter. The slope of functions a-d becomes smaller in sequential order. Exposure data of the four subdivided small pixels is calculated according to the density data of a pixel and functions a-d to expose each subdivided small pixel. A peak can be established in the exposure amount distribution to form a deeper latent image. Accordingly, resolution and graininess of the halftone area are improved.
摘要翻译：在数字全彩色复印机中，光电导体上的一个像素被分成四个细分的小像素。函数a-d被分配给每个细分的小像素。函数a-d是密度数据作为参数的线性函数。函数a-d的斜率按顺序变小。根据像素的密度数据计算四个细分的小像素的曝光数据，并且对a-d进行功能，以暴露每个细分的小像素。可以在曝光量分布中建立峰以形成更深的潜像。因此，改善了半色调区域的分辨率和颗粒度。

6. 发明授权

US5933255A Digital image forming apparatus 失效
标题翻译：数字图像形成装置
公开(公告)号：US5933255A
公开(公告)日：1999-08-03
申请号：US610713
申请日：1996-03-04
申请人： Katsuyuki Hirata , Yoshinobu Hada , Kentaro Katori , Masahiro Kouzaki
发明人： Katsuyuki Hirata , Yoshinobu Hada , Kentaro Katori , Masahiro Kouzaki
IPC分类号： B41J2/52 , B41J2/44 , B41J2/525 , G03G15/04 , H04N1/40 , H04N1/407
CPC分类号： B41J2/471 , B41J2/525 , H04N1/40037
摘要： In a digital image forming apparatus, when a latent image is formed on a photoconductor by modulating optical intensity of laser beam, the laser beam is emitted in a period of a duty ratio while modulated according to image data, and the image is formed on a sheet of paper. This process is repeated for four colors for a color document. The duty ratio, defined as a ratio of a light-emitting time of a light exposing the photoconductor to a period for exposing a dot, is changed in the same document. For example, the light emission timing pattern is changed between odd and even lines. In another example, the light-emission timings may be changed at least for one of the reproduction colors. The light-emission timing patterns may be provided for each of reproduction colors. The light-emission timing patterns may be changed to have a constant or different screening angle between colors. Image quality of a half-tone image is improved by using such patterns.
摘要翻译：在数字图像形成装置中，当通过调制激光束的光强度在感光体上形成潜像时，在按照图像数据进行调制的情况下，在占空比的周期内发射激光束，并且图像形成在一张纸。对于彩色文档，为四种颜色重复此过程。定义为曝光光电导体的光的发光时间与曝光点的周期的比率的占空比在相同的文献中改变。例如，发光定时图案在奇数行和偶数行之间改变。在另一示例中，至少对于一种再现颜色可以改变发光定时。可以为每种再现颜色提供发光定时图案。发光定时图案可以改变为在颜色之间具有恒定或不同的屏幕角度。通过使用这种图案可以提高半色调图像的图像质量。

7. 发明授权

US08406645B2 Image forming apparatus and image forming method for adjusting developing bias 有权
标题翻译：用于调整显影偏压的图像形成装置和图像形成方法
公开(公告)号：US08406645B2
公开(公告)日：2013-03-26
申请号：US12473541
申请日：2009-05-28
申请人： Yuusuke Okuno , Kentaro Katori , Kanji Nakayama , Tomo Kitada , Toru Hayase
发明人： Yuusuke Okuno , Kentaro Katori , Kanji Nakayama , Tomo Kitada , Toru Hayase
IPC分类号： G03G15/06
CPC分类号： G03G15/0813 , G03G15/065 , G03G2215/0634
摘要： Developing bias is set as follows. An electric field intensity between a developing roller and a photoconductor is set to cause normally-charged toner to fly in an image area and not to cause the toner to fly in a background area. Thus, the normally-charged toner does not fly in the background area. The normally-charged toner caused to fly is therefore unlikely to flick low-charged toner and oppositely-charged toner. The low-charged toner and the oppositely-charged toner will not adhere to the background area and cause image fogging. Accordingly, an image forming apparatus can be provided to prevent the low-charged toner and the oppositely-charged toner from adhering to the background area of an electrostatic latent image on the photoconductor and to avoid the occurrence of image fogging in the background area on a printed material.
摘要翻译：开发偏差设置如下。设置显影辊和光电导体之间的电场强度以使正常充电的调色剂在图像区域中飞行，并且不会使调色剂在背景区域中飞行。因此，正常充电的调色剂在背景区域不飞。因此，因飞扬的正常充电的调色剂不太可能会使低充电的调色剂和带有相反电荷的调色剂翻转。低电量调色剂和带相反电荷的调色剂不会粘附到背景区域并导致图像起雾。因此，可以提供图像形成装置，以防止低电荷调色剂和相反电荷的调色剂粘附到感光体上的静电潜像的背景区域上，并且避免在背景区域上发生图像起雾印刷材料。

8. 发明授权

US07853161B2 Image forming apparatus with toner discharge method 有权
标题翻译：具有调色剂排放方法的成像装置
公开(公告)号：US07853161B2
公开(公告)日：2010-12-14
申请号：US12332664
申请日：2008-12-11
申请人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
发明人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/065 , G03G15/0887
摘要： A potential difference between the photoreceptor and the development roller is set at a value at which the normally charged toner on the development roller can be flown toward the photoreceptor in the development phase at the time of compulsorily consuming the toner, and this potential difference is set at a value at which the flown normally charged toner can be returned to the development roller in the recovery phase.
摘要翻译：感光体和显影辊之间的电位差被设定为在强制消耗调色剂时显影辊上的正常带电的调色剂能够在显影阶段中朝向感光体流动的值，并且设定该电位差在正常充电的调色剂可以在恢复阶段返回到显影辊的值。

9. 发明申请

US20090304404A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20090304404A1
公开(公告)日：2009-12-10
申请号：US12473541
申请日：2009-05-28
申请人： Yuusuke OKUNO , Kentaro Katori , Kanji Nakayama , Tomo Kitada , Toru Hayase
发明人： Yuusuke OKUNO , Kentaro Katori , Kanji Nakayama , Tomo Kitada , Toru Hayase
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/0813 , G03G15/065 , G03G2215/0634
摘要： Developing bias is set as follows. An electric field intensity between a developing roller and a photoconductor is set to cause normally-charged toner to fly in an image area and not to cause the toner to fly in a background area. Thus, the normally-charged toner does not fly in the background area. The normally-charged toner caused to fly is therefore unlikely to flick low-charged toner and oppositely-charged toner. The low-charged toner and the oppositely-charged toner will not adhere to the background area and cause image fogging. Accordingly, an image forming apparatus can be provided to prevent the low-charged toner and the oppositely-charged toner from adhering to the background area of an electrostatic latent image on the photoconductor and to avoid the occurrence of image fogging in the background area on a printed material.
摘要翻译：开发偏差设置如下。设置显影辊和光电导体之间的电场强度以使正常充电的调色剂在图像区域中飞行，并且不会使调色剂在背景区域中飞行。因此，正常充电的调色剂不会在背景区域中飞行。因此，因飞扬的正常充电的调色剂不太可能会使低充电的调色剂和带有相反电荷的调色剂翻转。低电量调色剂和带相反电荷的调色剂不会粘附到背景区域并导致图像起雾。因此，可以提供图像形成装置，以防止低电荷调色剂和相对充电的调色剂粘附到感光体上的静电潜像的背景区域上，并且避免在背景区域上发生图像起雾印刷材料。

10. 发明授权

US5963766A Developing device 失效
标题翻译：开发设备
公开(公告)号：US5963766A
公开(公告)日：1999-10-05
申请号：US92876
申请日：1998-06-08
申请人： Yukihiko Okuno , Suguru Hamamichi , Shinichi Yoshimoto , Kentaro Katori , Mineyuki Sako , Yoshihiro Shojo
发明人： Yukihiko Okuno , Suguru Hamamichi , Shinichi Yoshimoto , Kentaro Katori , Mineyuki Sako , Yoshihiro Shojo
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G2215/0822 , G03G2215/0841
摘要： A supply screw 10 and a collection screw 20 for a developing device equip with screw blades having different forms at particular sections so as to make conveying force of developer different depending on sections. Screw blades for big conveying force are attached within sections where developer distribution is dense while screw blades for small conveying force are attached within sections where developer distribution is sparse. In other words, conveying force is made to be greater at sparse-distribution section while smaller at dense-distribution section. Developer delivery is also promoted by providing different conveying force area within carry-up area where developer is carried up from a supply screw 10 to a collection screw 20 or vice versa. By making conveying force of each section different, developer is uniformly delivered to a developing roll 87 whether in width direction or in axial direction. Furthermore, developer circulation in a developing device becomes smooth.
摘要翻译：用于显影装置的供应螺钉10和收集螺钉20装备在特定部分具有不同形式的螺旋叶片，以使显影剂的输送力根据部分不同。用于大输送力的螺旋叶片安装在显影剂分布密集的部分内，而用于小传送力的螺旋叶片连接在显影剂分布稀疏的部分内。换句话说，在稀疏分布部分处的输送力较大，而在致密分布部分则较小。还可以通过在显影剂从供给螺钉10向收集螺钉20运送的携带区域内提供不同的输送力区域，反之亦然地促进显影剂输送。通过使各部分的输送力不同，显影剂在宽度方向或轴向方向上均匀地传送到显影辊87。此外，显影装置中的显影剂循环变得平滑。

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