公开(公告)号：US09885990B2

公开(公告)日：2018-02-06

申请号：US14441977

申请日：2013-11-19

申请人： CANON KABUSHIKI KAISHA

发明人： Takuya Mukaibara ,  Hidetoshi Hanamoto

IPC分类号： G03G15/00 ,  G06K15/02 ,  G01N21/55

CPC分类号： G03G15/5062 ,  G01N21/55 ,  G03G15/5058 ,  G03G2215/0161 ,  G03G2215/0164 ,  G06K15/1878

摘要： An image forming apparatus includes an irradiation unit for irradiating an image carrier having a detection image with light; a light-receiving unit for receiving reflected light of the light irradiated by the irradiation unit and outputting a detection signal corresponding to a light-receiving amount of the reflected light including a specular-reflected light component; and a detection unit for detecting one of position information and density information of the detection image based on a signal corresponding to a difference between a value of the detection signal corresponding to the light-receiving amount of the reflected light from a first position where the detection image is formed and a value of the detection signal corresponding to the light-receiving amount of the reflected light from a second position different from the first position.

公开(公告)号：US20180004139A1

公开(公告)日：2018-01-04

申请号：US15619838

申请日：2017-06-12

申请人： Konica Minolta, Inc.

发明人： Tatsutoshi YAMADA ,  Kazuya KITAMURA

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G21/20 ,  G03G15/06 ,  G03G15/043

CPC分类号： G03G15/5041 ,  G03G15/0152 ,  G03G15/043 ,  G03G15/065 ,  G03G15/5058 ,  G03G15/5062 ,  G03G15/55 ,  G03G21/20 ,  G03G2215/00569 ,  G03G2215/0164 ,  G03G2221/1624

摘要： Provided is an image formation device including a photoreceptor configured to carry a toner image and a developer configured to form the toner image on a surface of the photoreceptor and configured such that the developer is a replaceable development unit, the image formation device including: a development bias application section configured to apply a development bias to between the photoreceptor and the developer; a stabilization control section configured to perform image stabilization control of determining a development bias value to be used in future by changing the development bias while measuring a density of the toner image formed by the developer, thereby obtaining the toner image with a target density; and a life determination section configured to determine expiration of use of the development unit when the development bias value determined by the stabilization control falls outside a preset acceptable range.

公开(公告)号：US20170308017A1

公开(公告)日：2017-10-26

申请号：US15478450

申请日：2017-04-04

申请人： CANON KABUSHIKI KAISHA

发明人： Hiroshi Tomii

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/5062 ,  G03G15/553 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus forms a first image by adjusting a photosensitive member potential to a first charging potential and adjusting a developing potential to a first developing potential, and forms a second image by adjusting the member potential to a second charging potential, adjusting the developing potential to a second developing potential, but not causing an exposure unit to expose a photosensitive member, and forms a third image by adjusting the developing potential to a third developing potential, but not causing a charging unit to charge the member, and not causing the exposure unit to expose the member, and detects a streak image based on read data of the first, second and third images, and read data corresponding to a non-image region of the test sheet.

公开(公告)号：US20170199483A1

公开(公告)日：2017-07-13

申请号：US15207563

申请日：2016-07-12

申请人： FUJI XEROX CO., LTD.

发明人： Yu TSUDA ,  Yasunori UNAGIDA ,  Kanji WATANABE ,  Yuji KIKUCHI

IPC分类号： G03G15/01

CPC分类号： G03G15/5041 ,  G03G15/1605 ,  G03G15/6517 ,  G03G2215/00455 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes a photosensitive member that includes a photosensitive layer, the photosensitive layer being thicker at a first axial end of the photosensitive member than at a second axial end of the photosensitive member; and a forming unit that forms a first image and a second image on the photosensitive member, the first image being transferred to each of transfer areas defined on continuous-form paper, the second image being transferred to the first axial end but to neither a position between adjacent ones of the transfer areas that are side by side in a longitudinal direction of the continuous-form paper nor a position in any of the transfer areas.

公开(公告)号：US20170176909A1

公开(公告)日：2017-06-22

申请号：US15373886

申请日：2016-12-09

申请人： Sharp Kabushiki Kaisha

发明人： Kiyoshi TAKATOH

IPC分类号： G03G15/16 ,  G03G15/00

CPC分类号： G03G15/5054 ,  G03G15/16 ,  G03G15/5058 ,  G03G2215/0132 ,  G03G2215/0164

摘要： An image forming apparatus includes a toner image forming portion, an information acquisition portion and a control portion. The control portion carries out processes (i) and (ii). In the process (i), the control portion causes the toner image forming portion to form, as a test image, at least either one of a toner image of single dot and a toner image of dot line consisting of single dots arranged in one or more rows in a predetermined direction, and then causes the information acquisition portion to acquire optical information on the formed test image. In the process (ii), the control portion corrects a condition for forming the toner image in the toner image forming portion, based on a state (size, concentration distribution, edge shape) of the test image obtained from the optical information acquired by the information acquisition portion.

公开(公告)号：US20170176884A1

公开(公告)日：2017-06-22

申请号：US15373184

申请日：2016-12-08

申请人： CANON KABUSHIKI KAISHA

发明人： Toshiyuki Miyake ,  Satoru Yamamoto ,  Katsuya Nakama ,  Koji Yumoto ,  Riki Fukuhara ,  Akihiro Kawakita

IPC分类号： G03G15/00

CPC分类号： G03G15/043 ,  G03G15/234 ,  G03G15/5062 ,  G03G15/55 ,  G03G2215/00569 ,  G03G2215/0164

摘要： Provided is an image forming apparatus capable of reducing power consumption by optimizing preliminary operation of a sensor. In the image forming apparatus, when tone characteristics adjustment is instructed (Step S1003: Y), tone characteristics adjustment (Step S1006) is executed after calibration (Step S1004), while when mixed-color correction is instructed (Step S1007: Y), mixed-color correction processing (Step S1009) is executed after calibration (Step S1008). Further, in the case where mixed-color correction is executed after tone characteristics adjustment, the preliminary light emission time in calibration is set shorter than when mixed-color correction is executed without performing gray adjustment first.

公开(公告)号：US09547269B1

公开(公告)日：2017-01-17

申请号：US15056240

申请日：2016-02-29

申请人： FUJI XEROX CO., LTD.

发明人： Shinichi Tsunoda ,  Eiji Morita

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/5041 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes a toner image forming section, a detection section, a variation calculation section, a user setting acquisition section, an adjustment ratio calculation section, and an adjustment section. The toner image forming section forms a toner image. The detection section detects a toner density of the formed toner image. The variation calculation section obtains a variation in toner density based on the detected toner density. The user setting acquisition section acquires a user setting concerning a degree of adjusting the toner density. The user setting is set by a user. The adjustment ratio calculation section calculates an adjustment ratio which is a ratio at which the user setting is reflected, in accordance with the variation in toner density. The adjustment section adjusts the toner density based on the variation in toner density, the user setting, and the adjustment ratio.

摘要翻译： 图像形成设备包括调色剂图像形成部分，检测部分，变化计算部分，用户设置获取部分，调整比例计算部分和调整部分。 调色剂图像形成部分形成调色剂图像。 检测部分检测形成的调色剂图像的调色剂浓度。 变化计算部根据检测到的调色剂浓度来获得调色剂浓度的变化。 用户设置获取部分获取关于调节调色剂浓度的程度的用户设置。 用户设置由用户设置。 调整率计算部根据调色剂浓度的变化来计算作为反映用户设定的比率的调整率。 调节部根据调色剂浓度，用户设定和调整率的变化来调整墨粉浓度。

公开(公告)号：US09436145B2

公开(公告)日：2016-09-06

申请号：US14563999

申请日：2014-12-08

申请人： CANON KABUSHIKI KAISHA

发明人： Yasuhito Shirafuji

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes: a forming unit configured to form an image on an image carrier; a holding unit configured to hold a reference table and a tone correction table that convert a plurality of input image data values into corresponding output image data values; and a correcting unit configured to control the forming unit to form a first test pattern including a plurality of images having different densities on the image carrier using the tone correction table, and correct the tone correction table by detecting densities of the plurality of images. The correcting unit is further configured to correct the tone correction table by updating the tone correction table using the detected densities of the plurality of images and then interpolating the updated tone correction table using the reference table.

摘要翻译： 图像形成装置包括：形成单元，被配置为在图像载体上形成图像; 配置为保持参考表的保持单元和将多个输入图像数据值转换为相应的输出图像数据值的色调校正表; 以及校正单元，被配置为使用所述色调校正表来控制所述形成单元以在所述图像载体上形成包括具有不同密度的多个图像的第一测试图案，并且通过检测所述多个图像的密度来校正所述色调校正表。 校正单元还被配置为通过使用检测到的多个图像的浓度更新色调校正表，然后使用参考表来内插更新的色调校正表来校正色调校正表。

公开(公告)号：US20160212303A1

公开(公告)日：2016-07-21

申请号：US14969729

申请日：2015-12-15

申请人： Konica Minolta, Inc.

发明人： Takashi TSUCHIYA

IPC分类号： H04N1/60 ,  G03G15/01

CPC分类号： H04N1/6005 ,  G03G15/01 ,  G03G15/5062 ,  G03G2215/0135 ,  G03G2215/0164 ,  H04N1/4097 ,  H04N1/6044

摘要： An image processing apparatus accurately compensates a flare component. The image forming apparatus reads images in a first reading condition and a second reading condition in which flare less occurs, and includes: a reflectance assignment unit for assigning a reflectance to the first image in accordance with the distance between the first image and the second image; a color information arithmetic unit for obtaining color information about the first image read in the second reading condition; a flare component derivation unit for deriving a flare component of the second image based on the reflectance and the color information; and a flare component removing unit for removing a flare component of the second image read in the first reading condition, based on the second image read in the first reading condition and the flare component derived by the flare component derivation unit.

摘要翻译： 图像处理装置准确地补偿光斑成分。 图像形成装置在第一读取条件和少量发光的第二读取条件下读取图像，并且包括：反射率分配单元，用于根据第一图像和第二图像之间的距离将反射率分配给第一图像 ; 颜色信息运算单元，用于获得关于在第二读取条件中读取的第一图像的颜色信息; 光阑分量导出单元，用于基于反射率和颜色信息导出第二图像的耀斑分量; 以及光阑元件去除单元，用于基于在第一读取条件下读取的第二图像和由闪光分量导出单元导出的闪光分量，去除在第一读取条件中读取的第二图像的耀斑分量。

公开(公告)号：US09348265B2

公开(公告)日：2016-05-24

申请号：US14189463

申请日：2014-02-25

申请人： FUJI XEROX CO., LTD.

发明人： Yoko Miyamoto ,  Sho Watanabe ,  Masaaki Takahashi

IPC分类号： G03G15/14 ,  G03G15/00

CPC分类号： G03G15/14 ,  G03G15/5058 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes an image forming portion that forms a toner image using a screen; a first transfer member that transfers the toner image formed by the image forming portion to a rotating transfer belt; a second transfer member that transfers the toner image transferred to the transfer belt by the first transfer member to a recording medium; and a controller that differentiates between, in a transfer area of the transfer belt to which the toner image is transferred by the first transfer member a screen that is used to form a toner image to be transferred to the transfer area in a preceding print cycle and a screen that is used to form a toner image to be transferred to this transfer area for the first time after the transfer belt has been rotated and the toner image has been second-transferred to a recording medium.

摘要翻译： 图像形成装置包括使用屏幕形成调色剂图像的图像形成部分; 第一转印构件，其将由图像形成部分形成的调色剂图像转印到旋转的转印带上; 第二转印部件，其将通过第一转印部件转印到转印带上的调色剂图像转印到记录介质上; 以及控制器，其在由所述第一传送部件传送调色剂图像的转印带的转印区域中区分用于形成要在前一打印周期中转印到转印区域的调色剂图像的丝网， 用于在转印带已经旋转并且调色剂图像已被第二次转印到记录介质之后第一次形成要转印到该转印区域的调色剂图像的屏幕。