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公开(公告)号：US10379478B2
公开(公告)日：2019-08-13
申请号：US16123244
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: A base toner amount is determined without taking edge effect into account. The base toner amount corresponds to a pixel value of image data for which gradation correction has not been performed. For the base toner amount, a first spatial filter process is performed corresponding to a laser profile of the exposure device. A second spatial filter process is performed for the base toner amount before or after the first spatial filter process and thereby an edge emphasis amount is determined corresponding to the edge effect. A toner counter counts as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount. Further, a gain control unit multiplies the edge emphasis amount by a coefficient corresponding to the base toner amount after the first spatial filter process and thereby controls a gain of the edge emphasis amount.
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公开(公告)号：US10273103B2
公开(公告)日：2019-04-30
申请号：US15981583
申请日：2018-05-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takayuki Mashimo , Toshiaki Mutsuo
IPC: B41J2/165 , B65H9/00 , B65H7/14 , B41J13/00 , B41J11/00 , B65H7/20 , G03G15/00 , B65H5/06 , B65H3/32
Abstract: A sheet conveyance device includes a shape detecting portion, and a switch control portion. The shape detecting portion detects a shape of a sheet at a detection position between a first conveyance member and a second conveyance member. The switch control portion, when a front end of the sheet has passed a arrangement position at which the first conveyance member is arranged, switches an detection interval at which the shape of the sheet is detected by the shape detecting portion, to a first interval that corresponds to a rotation speed of the first conveyance member, and when a rear end of the sheet has passed the arrangement position, switches the detection interval to a second interval that corresponds to the rotation speed of the second conveyance member.
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公开(公告)号：US20190079443A1
公开(公告)日：2019-03-14
申请号：US16123244
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
CPC classification number: G03G15/556 , G03G15/04072 , G03G15/5087 , G06K15/4075
Abstract: A base toner amount is determined without taking edge effect into account. The base toner amount corresponds to a pixel value of image data for which gradation correction has not been performed. For the base toner amount, a first spatial filter process is performed corresponding to a laser profile of the exposure device. A second spatial filter process is performed for the base toner amount before or after the first spatial filter process and thereby an edge emphasis amount is determined corresponding to the edge effect. A toner counter counts as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount. Further, a gain control unit multiplies the edge emphasis amount by a coefficient corresponding to the base toner amount after the first spatial filter process and thereby controls a gain of the edge emphasis amount.
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公开(公告)号：US20190079440A1
公开(公告)日：2019-03-14
申请号：US16123153
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
CPC classification number: G03G15/556 , G03G15/04045 , G03G15/04072 , G03G15/0865 , G03G15/16 , G03G15/5041 , G03G15/5087
Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, using spatial filters independently of each other in a primary scanning direction and in a secondary scanning direction, the toner amount calculating unit determines the electric field variation level on the basis of (a) the distribution pattern or (b) the exposure signal.
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公开(公告)号：US20180236768A1
公开(公告)日：2018-08-23
申请号：US15880194
申请日：2018-01-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshihiko Tanaka , Toshiaki Mutsuo
CPC classification number: B41J2/165 , B41J2/14201 , B41J2/16517 , B41J2/16579 , B41J2/16585 , B41J2/175
Abstract: An inkjet recording apparatus includes a piezoelectric element, an extraction processing portion, and a drive control portion. The piezoelectric element is provided in correspondence with a nozzle, and upon input of a first drive signal, causes ink to be ejected from the nozzle. The extraction processing portion, when a print process is executed, extracts a non-ejection period during which a non-ejection state continues for more than a reference time period, from an execution period of the print process based on a plurality of pieces of image data printed in the print process, wherein ink is not ejected from the nozzle in the non-ejection state. The drive control portion inputs a second drive signal for causing the piezoelectric element to stir the ink in the nozzle, to the piezoelectric element during a partial period of the non-ejection period extracted by the extraction processing portion.
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Patent Agency Ranking
公开(公告)号：US20180236763A1
公开(公告)日：2018-08-23
申请号：US15880164
申请日：2018-01-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshihiko Tanaka , Toshiaki Mutsuo
CPC classification number: B41J2/04581 , B41J2/04596 , B41J2/14201 , B41J2/165 , B41J2/16585 , B41J2/17 , B41J2002/16573 , B41J2002/16591
Abstract: An inkjet recording apparatus includes a piezoelectric element, an extraction processing portion, and a drive control portion. The piezoelectric element is provided in correspondence with a nozzle, and upon input of a first drive signal, causes ink to be ejected from the nozzle. The extraction processing portion, when a print process is executed, extracts a non-ejection period during which a non-ejection state continues for more than a reference time period, from an execution period of the print process based on image data printed in the print process, wherein ink is not ejected from the nozzle in the non-ejection state. The drive control portion inputs a second drive signal for causing the piezoelectric element to stir the ink in the nozzle, to the piezoelectric element during a partial period of the non-ejection period extracted by the extraction processing portion.
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公开(公告)号：US20170064140A1
公开(公告)日：2017-03-02
申请号：US15244962
申请日：2016-08-23
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Seiki Satomi
CPC classification number: H04N1/4052 , H04N1/4055 , H04N1/52 , H04N1/60
Abstract: A filter processing unit performs a bandpass filter process for a difference between an output pixel value and an input pixel value of an adjacent pixel to a target pixel. An error diffusion unit performs an error diffusion process of a quantization error for output of the filter processing unit. A quantizer performs quantization for a value obtained by the error diffusion process and thereby determines the output pixel value of the target pixel. The bandpass filter process is performed with characteristics different from each other (a) in respective ones of a primary scanning direction and a secondary scanning direction and (b) for respective ones of the component colors of the image. Furthermore, a filter coefficient of the bandpass filter process independently for each component color of an image is corrected for banding reduction with a correction coefficient corresponding to an angle from the primary scanning direction.
Abstract translation: 滤波处理单元对输出像素值与相邻像素的输入像素值与目标像素之间的差进行带通滤波处理。 误差扩散单元对滤波处理单元的输出执行量化误差的误差扩散处理。 量化器对通过误差扩散处理获得的值执行量化，从而确定目标像素的输出像素值。 在主扫描方向和副扫描方向各自的特性（a）中执行带通滤波处理，以及（b）对于图像的各个分量颜色进行带通滤波处理。 此外，对于图像的每个分量颜色独立地进行带通滤波处理的滤波器系数被校正，以便用与从主扫描方向的角度对应的校正系数进行带状缩小。
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公开(公告)号：US20140147036A1
公开(公告)日：2014-05-29
申请号：US14086346
申请日：2013-11-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Masaki Baba
CPC classification number: G06K9/344 , G06K9/342 , G06K9/38 , G06K9/4652 , G06K2209/01
Abstract: Regarding a color difference between a color of an original image on a pixel other than a connection pixel set in a rectangular area that is an inside area of a rectangle circumscribed to the connection pixel set and a color of the original image on a pixel in the connection pixel set, the binary image generating unit (a) identifies whether the connection pixel set is a character or non character by comparing a value of an index that indicates unevenness of the color differences with a color difference threshold value, (b) identifies whether a size of the rectangular area is small or large on the basis of a threshold value, and (c) sets the color difference threshold value as a value if the size of the rectangular area is small and as another different value if the size of the rectangular area is large.
Abstract translation: 关于在与在连接像素组外接的矩形的内部区域的矩形区域中设置的连接像素之外的像素上的原始图像的颜色与颜色的像素上的原始图像的颜色之间的色差 二值图像生成单元（a）通过将表示色差的指标的值与色差阈值进行比较来识别连接像素组是字符还是非字符，（b）识别是否 基于阈值，矩形区域的尺寸小或大，并且（c）如果矩形区域的尺寸小，则将色差阈值设置为值，并且如果其尺寸为 矩形区域大。
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公开(公告)号：US10560596B2
公开(公告)日：2020-02-11
申请号：US16109932
申请日：2018-08-23
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo
Abstract: An image forming apparatus includes a printing device, an output value converting unit, and a controller. The output value converting unit is configured to (a) change pixel values of pixels alternatively determined in a primary scanning direction and a secondary scanning direction so as to delete a dot on the pixels in a solid part in a target image and (b) change pixel values of pixels that are alternatively not determined in the primary scanning direction and the secondary scanning direction so as to gain a dot size of the pixels in the solid part. The controller is configured to control the printing device so as to print the solid part with dot sizes corresponding to the pixel values.
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公开(公告)号：US10514648B2
公开(公告)日：2019-12-24
申请号：US16123153
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, using spatial filters independently of each other in a primary scanning direction and in a secondary scanning direction, the toner amount calculating unit determines the electric field variation level on the basis of (a) the distribution pattern or (b) the exposure signal.
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