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1. 发明申请

US20180335740A1 IMAGE FORMING APPARATUS THAT ADJUSTS COLOR MISREGISTRATION 审中-公开
公开(公告)号：US20180335740A1
公开(公告)日：2018-11-22
申请号：US15974745
申请日：2018-05-09
申请人： CANON KABUSHIKI KAISHA
发明人： Takehiro Kishi , Hirotoshi Tajima
IPC分类号： G03G15/00 , G03G15/01 , H04N1/50 , G03G15/04
CPC分类号： G03G15/5054 , G03G15/0184 , G03G15/0189 , G03G15/04036 , G03G15/0415 , G03G15/5058 , G03G2215/0161 , H04N1/506
摘要： An image forming apparatus includes: a controller configured to: control first and second image forming units to form a plurality of groups of detection images, the plurality of groups of detection images being scaled based on a scaling factor, determine a plurality of detection start timings that respectively correspond to the plurality of groups based on the scaling factor, control a detection unit to detect the plurality of groups based on the determined detection start timings, and control the detected misregistration of a first image to be formed by the first image forming unit and a second image to be formed by the second image forming unit.

2. 发明授权

US09952526B2 Image forming apparatus for adjusting position of image formed on sheet 有权
公开(公告)号：US09952526B2
公开(公告)日：2018-04-24
申请号：US15234885
申请日：2016-08-11
申请人： CANON KABUSHIKI KAISHA
发明人： Naoka Omura , Kunio Takane , Noriaki Matsui , Takuya Hayakawa , Kiyoharu Kakomura , Takayuki Inoue
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G2215/0158 , G03G2215/0161
摘要： An image forming apparatus includes a first image forming unit configured to form a first image in a chromatic color, a second image forming unit configured to form a second image in black, an intermediate transfer member, a sensor, a first adjustment unit configured to adjust the image forming position for the black based on an adjustment value, a second adjustment unit configured to adjust image forming position based on an adjustment condition, and a generation unit configured to generate the adjustment condition. The generation unit generates a first adjustment condition based on a user instruction relating to a first test image having chromatic color on a sheet input from the input unit. The generation unit generates a second adjustment condition based on the reading result of the second test image having black on a sheet from a reading device.

3. 发明申请

US20180106722A1 IMAGE-FORMING APPARATUS 审中-公开
公开(公告)号：US20180106722A1
公开(公告)日：2018-04-19
申请号：US15730074
申请日：2017-10-11
申请人： CANON KABUSHIKI KAISHA
发明人： Takashi FUKUHARA
IPC分类号： G03G15/01 , G01N21/47 , G01N21/55
CPC分类号： G01N21/4738 , G01N21/55 , G03G15/0121 , G03G15/0126 , G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G2215/00616 , G03G2215/0161
摘要： The image-forming apparatus includes multiple developing units that form images using multiple color developers, an image carrier that, in color displacement detection, carries the developers transferred thereon at mutually different image-carrying positions, an optical sensor that projects a light to the image carrier and receives a reflected light from the image carrier, and an acquirer that acquires, in response to output from the optical sensor, passage times at which the developers on the image carrier respectively pass a detection position. The optical sensor receives a diffusively reflected light from a non-transferred area of the image carrier on which the developers are not transferred. The acquirer acquires the passage times of all the developers, in response to changes in the output from the optical sensor at an output level higher than that corresponding to a diffusively reflected light from the developers on the image carrier.

4. 发明申请

US20170343949A1 IMAGE FORMATION APPARATUS 审中-公开
公开(公告)号：US20170343949A1
公开(公告)日：2017-11-30
申请号：US15491223
申请日：2017-04-19
申请人： Oki Data Corporation
发明人： Toyokazu SHIRAISHI
IPC分类号： G03G15/00 , G03G15/16 , G03G15/01
CPC分类号： G03G15/6558 , G03G15/01 , G03G15/16 , G03G15/5058 , G03G2215/0141 , G03G2215/0158 , G03G2215/0161
摘要： An image formation apparatus that includes: first to third image formation units provided in this order in a traveling direction of a transfer target medium; a detector configured to detect first to third correction pattern formed on the transfer target medium by the first to third image formation units, respectively; and a control unit programed to control image misregistration correction based on a result of detection by the detector. The control unit causes the first and third image formation units to form the first and third correction patterns on the transfer target medium, respectively. When an amount of image misregistration between the first correction pattern and the third correction pattern is less than a predetermined value, the control unit neither causes the second image formation unit to form the second correction pattern, nor executes the image misregistration correction.

5. 发明授权

US09746796B2 Image forming apparatus 有权
公开(公告)号：US09746796B2
公开(公告)日：2017-08-29
申请号：US15158824
申请日：2016-05-19
申请人： Oki Data Corporation
发明人： Daisuke Harada
IPC分类号： G03G15/043 , G03G15/01 , G03G15/00
CPC分类号： G03G15/043 , G03G15/011 , G03G15/0189 , G03G15/5058 , G03G2215/0161
摘要： An image forming apparatus includes: a first image forming unit for forming toner images on a first photosensitive body; a second image forming unit for forming toner images on a second photosensitive body; a first exposure unit for exposing the first photosensitive body; a second exposure unit for exposing the second photosensitive body; a transfer unit for transferring, onto an intermediate transfer belt, toner images for correction formed from the first image forming unit and the second image forming unit; a detection unit for detecting the toner images for correction; and a control unit for controlling an exposure cycle of the first exposure unit, wherein the control unit corrects the exposure cycle of the first exposure unit based on a detected consequence of the detection unit.

6. 发明授权

US09696673B2 Image forming apparatus and image forming method 有权
公开(公告)号：US09696673B2
公开(公告)日：2017-07-04
申请号：US14711573
申请日：2015-05-13
申请人： CANON KABUSHIKI KAISHA
发明人： Naoka Omura , Kuniyasu Kimura , Takuya Hayakawa , Kiyoharu Kakomura , Seita Inoue , Yuya Ohta
IPC分类号： G03G15/00 , G03G15/01 , G03G15/043
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/043 , G03G2215/0129 , G03G2215/0161 , G03G2215/0164
摘要： The image forming apparatus controls each laser scanner by setting the writing start timing in the sub-scanning direction to form the color registration correction image for correcting color registration at position according to the detection result of the image detection sensor. When forming the image on the sheet, the image forming apparatus sets the writing start timing in the sub-scanning direction according to the detection result of the image detection sensor and the amount of skew of the sheet to control each laser scanner. When forming the density detection toner image for correcting the density, the image forming apparatus sets the writing start timing in the sub-scanning direction to form the image at a position shifted by a pixel unit from the image forming position on the sheet.

7. 发明授权

US09651900B2 Image formation apparatus and information processing device for correcting color misregistration 有权
公开(公告)号：US09651900B2
公开(公告)日：2017-05-16
申请号：US15186874
申请日：2016-06-20
申请人： Oki Data Corporation
发明人： Jumpei Shibasaki
IPC分类号： G03G15/01 , G03G15/16 , G03G15/00
CPC分类号： G03G15/1615 , G03G15/01 , G03G15/5058 , G03G2215/0129 , G03G2215/0161
摘要： An image formation apparatus includes: image formation units mounted in series in a conveyance direction of a transfer object and that form images and correction patterns of different color developers on the transfer object; a sensor that detects a color misregistration, by the emission of a detection light to the correction pattern on the transfer object and the reception of a reflection light from the transfer object; an identification unit that identifies, out of the image formation units, a first image formation unit using a first developer which is the developer with the lowest reflectance, based on reflectance information indicating reflectances of the developers for the image formation units, or based on color information indicating the colors of the developers for the image formation units; and a corrector that corrects the color misregistration with respect to the first image formation unit identified by the identification unit.

8. 发明授权

US09632452B2 Image forming apparatus operable in writing position correction mode 有权
公开(公告)号：US09632452B2
公开(公告)日：2017-04-25
申请号：US15011316
申请日：2016-01-29
申请人： CANON KABUSHIKI KAISHA
发明人： Yuji Ohkubo , Akihiro Noguchi
IPC分类号： G03G15/01 , G03G15/08 , G03G15/00
CPC分类号： G03G15/0849 , G03G15/0189 , G03G15/5058 , G03G2215/0161
摘要： Precise correction of a position of a toner image formed by an image forming station can be accomplished in a device using two-component developer. An electrostatic latent image for forming a color misregistration correction pattern for color misregistration correcting includes a first latent image pattern and a second latent image pattern at a position downstream of the first latent image pattern with respect to the moving direction of the electrostatic latent image. The toner image resulting from the development of the first latent image pattern has a width, measured in the image moving direction, which is greater than that of the toner image resulting from the development of a latent image pattern alone, which is the same as the first latent image pattern, or the toner image resulting from the development of the first latent image pattern has an image density at a downstream end portion with respect to the moving direction, which density is higher than that of the toner image resulting from the development of the latent image pattern alone, which is the same as the first latent image pattern.

9. 发明授权

US09594017B2 Reflective sensor 有权
标题翻译：反光传感器
公开(公告)号：US09594017B2
公开(公告)日：2017-03-14
申请号：US14831969
申请日：2015-08-21
申请人： OMRON Corporation
发明人： Yoshitaka Taishi , Hajime Kawai , Hiroyuki Miyamoto
IPC分类号： G03G15/00 , G01N21/00 , G01N21/47 , G01N21/55 , G01N21/86
CPC分类号： G01N21/4738 , G01N21/55 , G01N21/86 , G03G15/5041 , G03G15/5058 , G03G2215/00042 , G03G2215/00059 , G03G2215/0161
摘要： The present invention includes an optical system disposed on an optical path of light that is emitted by a light emitting section, travels to a detection target object, is reflected by the detection target object, and reaches a light receiving section. The optical system, in a sub scanning direction, that is, the direction in which a detection target object is moving, collects light so that the light receiving section has, for light from the light emitting section, a regularly reflected light receiving area and a diffuse-reflected light receiving area that differ from each other in position within a predetermined range. The optical system, in a perpendicular direction that is perpendicular to the movement direction, refracts light so that a light receiving area, which covers the regularly reflected light receiving area and the diffuse-reflected light receiving area, is wider in the perpendicular direction than in the sub scanning direction.
摘要翻译：本发明包括一个光学系统，其设置在由发光部分发射的光的行进到检测目标物体的光路上，被检测目标物体反射，并到达光接收部分。光学系统在副扫描方向即检测对象物体移动的方向上收集光，使得受光部对于来自发光部的光具有规则的反射光接收区域和扩散反射光接收区域在预定范围内彼此不同的位置。光学系统在与运动方向垂直的垂直方向上折射光，使得覆盖规则反射光接收区域和漫反射光接收区域的光接收区域在垂直方向上比在副扫描方向。

10. 发明授权

US09423752B2 Image forming apparatus and method adjusting image forming condition 有权
标题翻译：图像形成装置和调整图像形成条件的方法
公开(公告)号：US09423752B2
公开(公告)日：2016-08-23
申请号：US14726847
申请日：2015-06-01
申请人： Satoshi Kaneko , Shinji Kato , Shuji Hirai
发明人： Satoshi Kaneko , Shinji Kato , Shuji Hirai
IPC分类号： G03G15/08 , G03G15/16 , G03G21/14 , G03G15/00
CPC分类号： G03G15/556 , G03G15/5058 , G03G21/145 , G03G2215/0161
摘要： An image forming apparatus includes an image bearer; a toner image forming device; a transfer rotator; a transfer device; a rotation position detector; an image density detector; a density data acquisition unit to causes the toner image forming device to form an adjustment toner image equal to or greater in length than a circumferential length of the image bearer, cause a linear velocity difference between the image bearer and the transfer rotator in transfer of the adjustment toner image, and acquires, from a detected image density of the toner image transferred from the image bearer, detected by the image density detector, image density unevenness data with reference to detection of a reference rotation position of one of the image bearer and a rotator; and a correction unit to adjust an image forming condition according to the reference rotation position, the image density unevenness data, and the linear velocity difference.
摘要翻译：图像形成装置包括图像载体; 调色剂图像形成装置; 转移旋转器; 转移装置; 旋转位置检测器; 图像浓度检测器; 密度数据获取单元，用于使调色剂图像形成装置形成等于或大于图像载体的周长的调色剂图像，导致图像载体和转印旋转体之间的线速度差异，调整调色剂图像，并且从图像载体检测到的图像承载检测到的调色剂图像的检测图像浓度中获取图像浓度不均匀性数据，参照图像载体和图像载体之一的基准旋转位置的检测旋转器以及校正单元，用于根据基准旋转位置，图像浓度不均匀性数据和线速度差来调整图像形成条件。

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