公开(公告)号：US20130156449A1

公开(公告)日：2013-06-20

申请号：US13707797

申请日：2012-12-07

Applicant: Kohta FUJIMORI ,  Kayoko Tanaka ,  Keita Sone

Inventor： Kohta FUJIMORI ,  Kayoko Tanaka ,  Keita Sone

IPC: G03G15/00

CPC classification number: G03G15/55 ,  G01N21/55 ,  G03G15/0189 ,  G03G15/5058

Abstract: An image forming apparatus includes a image forming unit; an image bearing member having a surface to bear a toner image and a test pattern; the surface having a first time-surface positioned identical to the test pattern, an integer multiple of revolutions upstream or downstream from the test pattern in a surface movement direction, and a second time-surface positioned different from the test pattern, shorter than one revolution upstream or downstream from the test pattern; a reflection light detector to detect the amount of light reflected from the test pattern and the first and second time-surfaces of the image bearing member; and a controller to control the image forming unit based on the detection result and determine whether to execute a first-surface control to detect at least the first time-surface or a second-surface control to detect only the second time-surface based on use condition of the image forming apparatus.

Abstract translation: 图像形成装置包括图像形成单元; 具有承载调色剂图像的表面和测试图案的图像承载部件; 所述表面具有与测试图案相同的第一时间表面，在测试图案的表面移动方向上游或下游的转数的整数倍，以及与测试图案不同的第二时间表，短于一转 测试图案的上游或下游; 反射光检测器，用于检测从测试图案反射的光量和图像承载部件的第一和第二时间表面; 以及控制器，其基于检测结果来控制图像形成单元，并且确定是否执行第一表面控制以至少检测第一时间表面或第二表面控制，以仅基于使用检测第二时间表面 图像形成装置的状态。

公开(公告)号：US08145100B2

公开(公告)日：2012-03-27

申请号：US12360321

申请日：2009-01-27

Applicant: Yushi Hirayama ,  Shinji Kato ,  Takeroh Kurenuma ,  Keiichi Yoshida ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Tetsuya Muto ,  Akira Yoshida ,  Hiroyuki Uenishi

Inventor： Yushi Hirayama ,  Shinji Kato ,  Takeroh Kurenuma ,  Keiichi Yoshida ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Tetsuya Muto ,  Akira Yoshida ,  Hiroyuki Uenishi

IPC: G03G15/08

CPC classification number: G03G15/0853 ,  G03G15/0893 ,  G03G2215/0132 ,  G03G2215/0897

Abstract: A process cartridge for use in an image forming apparatus includes an image bearing member and a developing unit. The developing unit includes a developer bearing member to bear developer including toner and carrier, a casing forming a developer container containing the developer, a screw having a shaft with a spiral screw blade, a toner density sensor to detect a density of the toner on a detection surface, and a detection surface agitating member fixedly mounted on the shaft of the screw at a position facing a detection surface to scrape away the developer accumulated on the detection surface as the screw rotates. The detection surface agitating member includes an elastic sheet elastically deformable to scrape away the developer accumulated on the detection surface and disposed at a substantially same angle to an axial direction of the shaft of the screw as the spiral screw blade.

Abstract translation: 用于图像形成设备的处理盒包括图像承载部件和显影单元。 显影单元包括用于承载显影剂的显影剂承载构件，包括调色剂和载体，形成包含显影剂的显影剂容器的壳体，具有螺旋形螺旋叶片的轴的螺杆，用于检测调色剂密度的调色剂浓度传感器 检测表面，以及检测表面搅拌构件，其固定地安装在螺钉的轴上面对检测表面的位置，以在螺钉旋转时刮掉积累在检测表面上的显影剂。 检测表面搅拌构件包括可弹性变形的弹性片，以刮擦积聚在检测表面上的显影剂，并以与螺旋形螺旋叶片的螺杆轴的轴向大致相同的角度设置。

公开(公告)号：US08045874B2

公开(公告)日：2011-10-25

申请号：US12367736

申请日：2009-02-09

Applicant: Akira Yoshida ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

Inventor： Akira Yoshida ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

IPC: G03G15/00 ,  G03G15/06

CPC classification number: G03G15/0131 ,  G03G15/5058 ,  G03G2215/00037 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00063

Abstract: An image forming apparatus includes a control device that calculates a developing ability of the developing device based on a detection value detected by an optical detection device from the plural toner patches. The control device adjusts an image formation condition based on the calculated developing ability. A factor detection device is provided to detect a contributing factor that causes the developing ability to largely change after the last adjustment of the image formation condition. The control device controls image formation such that when the factor detection device does not detect the contribution factor and a developing ability calculated this time is different from that calculated last time (as to a part of the plural toner patches), the plural toner patches are formed based on a prescribed fixed image formation condition so that an attraction amount of toner attracting to the plural toner patches enter a prescribed range detectable for the optical detection device. The remaining toner patches are formed (based on an image formation condition determined) in accordance with the image formation condition previously adjusted. When the detection device detects the contribution factor, the entire toner patches are formed based on the prescribed fixed condition.

Abstract translation: 图像形成装置包括控制装置，其基于来自多个调色剂贴片的由光学检测装置检测的检测值来计算显影装置的显影能力。 控制装置基于计算出的显影能力来调整图像形成条件。 提供了一种因素检测装置，用于检测在最后一次调整图像形成条件之后导致显影能力发生很大变化的因素。 控制装置控制图像形成，使得当因子检测装置未检测到贡献因子，并且此次计算的显影能力与上次计算的不同（关于多个调色剂片的一部分）时，多个调色剂片是 基于规定的固定图像形成条件形成，使得吸引到多个调色剂贴片的调色剂的吸引量进入可检测的用于光学检测装置的规定范围。 根据先前调整的图像形成条件形成剩余调色剂片（基于确定的图像形成条件）。 当检测装置检测到贡献因子时，根据规定的固定条件形成整个调色剂贴片。

公开(公告)号：US07885556B2

公开(公告)日：2011-02-08

申请号：US11532383

申请日：2006-09-15

Applicant: Kohta Fujimori ,  Shin Hasegawa ,  Nobutaka Takeuchi ,  Hitoshi Ishibashi ,  Yushi Hirayama ,  Naoto Watanabe ,  Kayoko Tanaka ,  Kazumi Kobayashi ,  Takashi Enami ,  Osamu Ariizumi ,  Fukutoshi Uchida ,  Shinji Kobayashi ,  Shinji Kato ,  Ryohta Morimoto

Inventor： Kohta Fujimori ,  Shin Hasegawa ,  Nobutaka Takeuchi ,  Hitoshi Ishibashi ,  Yushi Hirayama ,  Naoto Watanabe ,  Kayoko Tanaka ,  Kazumi Kobayashi ,  Takashi Enami ,  Osamu Ariizumi ,  Fukutoshi Uchida ,  Shinji Kobayashi ,  Shinji Kato ,  Ryohta Morimoto

IPC: G03G15/08

CPC classification number: G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059

Abstract: In an image forming apparatus a developing device develops an electrostatic latent image on an image carrier with a developer that contains toner to obtain a toner image, a toner-amount detecting unit detects amount of toner attached to the toner image, and a toner-density detecting unit detects a density of toner in the developer. Moreover, a process control unit corrects a toner-density target value indicative of a target value of density of toner in the developer based on the amount of toner detected by the toner-amount detecting unit and the density of toner detected by the toner-density detecting unit, and a determines execution timing of next process based on corrected toner-density target value.

Abstract translation: 在图像形成装置中，显影装置利用含有调色剂的显影剂在图像载体上显影静电潜像以获得调色剂图像，调色剂量检测单元检测附着到调色剂图像的调色剂的量和调色剂浓度 检测单元检测显影剂中调色剂的浓度。 此外，过程控制单元基于由调色剂量检测单元检测到的调色剂的量和由调色剂浓度检测到的调色剂的浓度来校正指示显影剂中调色剂浓度的目标值的调色剂浓度目标值 检测单元，以及基于校正的调色剂浓度目标值确定下一个处理的执行定时。

公开(公告)号：US07747182B2

公开(公告)日：2010-06-29

申请号：US11558731

申请日：2006-11-10

Applicant: Shinji Kato ,  Shin Hasegawa ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kazumi Kobayashi ,  Kiichirou Shimizu ,  Takashi Enami

Inventor： Shinji Kato ,  Shin Hasegawa ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kazumi Kobayashi ,  Kiichirou Shimizu ,  Takashi Enami

IPC: G03G15/08

CPC classification number: G03G15/5041 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0889

Abstract: An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The toner density of the developer is controlled so that an output value Vt of a magnetic permeability sensor approaches a target output value Vtref. In addition, the target output value Vtref is corrected in accordance with image coverage history information of output images transferred to a transfer paper and image coverage ratio history information of output images determined from the image coverage thereof and the size of the transfer paper. This history information comprises, for example, a cumulative average value of the image coverage or the image coverage ratio per transfer paper. It may also comprise a moving average value of the image coverage or the image coverage ratio per transfer material.

Abstract translation: 通过在不消耗调色剂的情况下校正调色剂浓度控制目标值，可以获得预定图像浓度的图像形成装置。 控制显影剂的调色剂浓度使磁导率传感器的输出值Vt接近目标输出值Vtref。 此外，目标输出值Vtref根据传送到转印纸的输出图像的图像覆盖历史信息和从其图像覆盖率确定的输出图像的图像覆盖率历史信息和转印纸的尺寸来校正。 该历史信息例如包括图像覆盖的累积平均值或每个转印纸的图像覆盖率。 它还可以包括图像覆盖的移动平均值或每个转印材料的图像覆盖率。

公开(公告)号：US07616909B2

公开(公告)日：2009-11-10

申请号：US11733918

申请日：2007-04-11

Applicant: Shinji Kato ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Osamu Ariizumi ,  Naoto Watanabe ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kazumi Kobayashi ,  Shinji Kobayashi ,  Fukutoshi Uchida ,  Takashi Enami ,  Ryohta Morimoto

Inventor： Shinji Kato ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Osamu Ariizumi ,  Naoto Watanabe ,  Kayoko Tanaka ,  Yushi Hirayama ,  Kazumi Kobayashi ,  Shinji Kobayashi ,  Fukutoshi Uchida ,  Takashi Enami ,  Ryohta Morimoto

IPC: G03G15/00 ,  G03G15/01 ,  G03G15/20 ,  G03G15/08

CPC classification number: G03G15/161 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/1685 ,  G03G2215/00734 ,  G03G2215/0161

Abstract: In an image forming apparatus, a toner image formed on a photosensitive drum is primarily transferred onto an intermediate transfer belt. The toner image on the intermediate transfer belt is secondarily transferred onto a transfer material by a secondary transfer roller in contact with the intermediate transfer belt. A relation A>B>C is satisfied, where A is a width of the intermediate transfer member, B is a width of the secondary transfer member, and C is a width of the transfer material. The intermediate transfer member includes a patch-pattern forming area that is not contacted by the secondary transfer member. The image forming apparatus includes a reflection-type photosensor that detects a patch pattern formed in the patch-pattern forming area.

Abstract translation: 在图像形成装置中，形成在感光鼓上的调色剂图像主要转印到中间转印带上。 中间转印带上的调色剂图像通过与中间转印带接触的二次转印辊二次转印到转印材料上。 满足关系A> B> C，其中A是中间转印部件的宽度，B是二次转印部件的宽度，C是转印材料的宽度。 中间转印部件包括不与二次转印部件接触的贴片图案形成区域。 图像形成装置包括检测形成在贴片图形形成区域中的贴片图案的反射型光电传感器。

公开(公告)号：US07551866B2

公开(公告)日：2009-06-23

申请号：US11477673

申请日：2006-06-30

Applicant: Naoto Watanabe ,  Shin Hasegawa ,  Hideki Kamaji ,  Shinji Kato ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Kayoko Tanaka ,  Yuushi Hirayama ,  Takashi Enami ,  Shinji Kobayashi ,  Kazumi Kobayashi ,  Fukutoshi Uchida ,  Noboru Sawayama

Inventor： Naoto Watanabe ,  Shin Hasegawa ,  Hideki Kamaji ,  Shinji Kato ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Kayoko Tanaka ,  Yuushi Hirayama ,  Takashi Enami ,  Shinji Kobayashi ,  Kazumi Kobayashi ,  Fukutoshi Uchida ,  Noboru Sawayama

IPC: G03G15/00

CPC classification number: G03G15/5058 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/0119

Abstract: An image forming method and apparatus capable of implementing accurately and constantly an improved conversion of the amount of toner adhesion over the entire range of the amount of adhesion. The method includes the steps of computing a normalization value as a relative output ratio of the regular reflection output to a background regular reflection component from the surface extracted from the regular reflection light, in which the regular reflection output is obtained by detecting a plurality of gradation toner patterns with a sensor configured to simultaneously detect regular reflection light and diffuse reflection light; obtaining a diffuse reflection output conversion factor by either (1) subtracting the normalization value multiplied by the diffuse reflection output voltage generated by the surface from the diffuse reflection output voltage, or (2) subtracting the normalization value multiplied by a diffuse reflection output voltage increment, which is computed as the difference between the diffuse reflection output voltage and another diffuse reflection output voltage obtained when a light emitting device is turned off, from the diffuse reflection output voltage increment; and subjecting the relation between the diffuse reflection output conversion factor and the amount of adhesion to a polynomial approximation.

Abstract translation: 一种图像形成方法和装置，其能够在粘合量的整个范围内精确地和持续地实现调色剂粘附量的改进转换。 该方法包括以下步骤：从通过从正反射光提取的表面计算正规反射输出与背景常规反射分量的相对输出比的归一化值，其中通过检测多个等级获得正则反射输出 具有传感器的调色剂图案被配置为同时检测正常反射光和漫反射光; 通过（1）从扩散反射输出电压减去由表面产生的漫反射输出电压的归一化值，或（2）减去乘以漫反射输出电压增量的归一化值，获得漫反射输出转换因子 ，其被计算为漫反射输出电压与发光装置关闭时获得的另一漫反射输出电压之间的差; 并将漫反射输出转换因子与粘附量之间的关系进行多项式近似。

公开(公告)号：US20070122171A1

公开(公告)日：2007-05-31

申请号：US11564677

申请日：2006-11-29

Applicant: Kohta Fujimori ,  Yuushi Hirayama ,  Shinji Kato ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Kazumi Kobayashi ,  Shin Hasegawa ,  Takashi Enami ,  Kiichirou Shimizu

Inventor： Kohta Fujimori ,  Yuushi Hirayama ,  Shinji Kato ,  Nobutaka Takeuchi ,  Kayoko Tanaka ,  Kazumi Kobayashi ,  Shin Hasegawa ,  Takashi Enami ,  Kiichirou Shimizu

IPC: G03G15/00

CPC classification number: G03G15/5033 ,  G03G15/0131 ,  G03G15/5058 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/0119 ,  G03G2215/0164

Abstract: An image forming apparatus includes an image bearing member, an image forming mechanism configured to perform an image formation by performing a first image forming operation to form a first image on the image bearing member and an image transferring operation to transfer the first image onto a recording member, and an image quality controlling mechanism configured to perform an image control by performing a second image forming operation to form a second image on the image bearing member and an image controlling operation to control an image quality according to the second image. The image quality controlling mechanism determines an operation condition of starting the image control according to first information of operations during the image formation and second information of operations during the image control, when the second image forming operation is performed during the first image forming operation.

Abstract translation: 图像形成装置包括图像承载部件，图像形成机构，被配置为通过执行第一图像形成操作以在图像承载部件上形成第一图像来执行图像形成，以及图像转印操作，以将第一图像转印到记录 以及图像质量控制机构，被配置为通过执行第二图像形成操作以在图像承载部件上形成第二图像来执行图像控制，以及图像控制操作，以根据第二图像来控制图像质量。 当在第一图像形成操作期间执行第二图像形成操作时，图像质量控制机构根据图像形成期间的操作的第一信息和图像控制期间的操作的第二信息来确定开始图像控制的操作条件。

公开(公告)号：US20070122168A1

公开(公告)日：2007-05-31

申请号：US11561053

申请日：2006-11-17

Applicant: Kayoko TANAKA ,  Kohta Fujimori ,  Yuji Hirayama ,  Nobutaka Takeuchi ,  Shin Hasegawa ,  Shinji Kato ,  Takashi Enami ,  Kazumi Kobayashi ,  Kiichirou Shimizu

Inventor： Kayoko TANAKA ,  Kohta Fujimori ,  Yuji Hirayama ,  Nobutaka Takeuchi ,  Shin Hasegawa ,  Shinji Kato ,  Takashi Enami ,  Kazumi Kobayashi ,  Kiichirou Shimizu

IPC: G03G15/08

CPC classification number: G03G15/0853 ,  G03G2215/0119 ,  G03G2215/0822

Abstract: An image density control method for an image forming apparatus in which, in order to keep the development capability constant over time, the toner density in the developer is manipulated to an appropriate range by changing the toner density control reference value in accordance with the toner replacement amount in a fixed time period by ascertaining changes in the image coverage of the output images, and by changing the image forming conditions at predetermined execution intervals.

Abstract translation: 一种用于图像形成装置的图像浓度控制方法，其中为了保持显影能力恒定，显影剂中的调色剂浓度通过根据调色剂更换改变调色剂浓度控制参考值而被操纵到适当的范围 通过确定输出图像的图像覆盖率的变化，并且通过以预定的执行间隔改变图像形成条件，在固定时间段内量化。

公开(公告)号：US20060274628A1

公开(公告)日：2006-12-07

申请号：US11430978

申请日：2006-05-10

Applicant: Kayoko Tanaka ,  Kohta Fujimori ,  Shin Hasegawa ,  Shinji Kato ,  Nobutaka Takeuchi ,  Naoto Watanabe ,  Yuushi Hirayama ,  Hitoshi Ishibashi ,  Osamu Ariizumi ,  Takashi Enami ,  Kazumi Kobayashi ,  Shinji Kobayashi ,  Fukutoshi Uchida ,  Ryohta Morimoto

Inventor： Kayoko Tanaka ,  Kohta Fujimori ,  Shin Hasegawa ,  Shinji Kato ,  Nobutaka Takeuchi ,  Naoto Watanabe ,  Yuushi Hirayama ,  Hitoshi Ishibashi ,  Osamu Ariizumi ,  Takashi Enami ,  Kazumi Kobayashi ,  Shinji Kobayashi ,  Fukutoshi Uchida ,  Ryohta Morimoto

IPC: G11B7/00

CPC classification number: G03G15/1605 ,  G03G15/235 ,  G03G15/6564 ,  G03G15/6567 ,  G03G2215/0158 ,  G03G2215/1623

Abstract: An image forming apparatus includes a plurality of image carriers, an image forming mechanism, a seamless belt-like intermediate transfer body or a transfer material carrier, a detection mechanism, and an optical detecting apparatus. The optical detecting apparatus includes at least a printed board, and a plurality of photodetectors formed of a light-emitting element, a light-receiving element and light-shielding members, which are mounted on the printed board. The optical detecting apparatus is disposed such that it detects a belt surface adjacent to rollers of the intermediate transfer body or the transfer material carrier, and either displacement of a transfer image or image density is detected by a plurality of photodetectors detecting pattern images which are transferred from the plurality of image carriers to the image transfer body or the transfer material carrier.

Abstract translation: 图像形成装置包括多个图像载体，图像形成机构，无缝带状中间转印体或转印材料载体，检测机构和光学检测装置。 光学检测装置至少包括印刷电路板和安装在印刷电路板上的由发光元件，光接收元件和遮光部件形成的多个光电检测器。 光学检测装置被布置成使得它检测到与中间转印体或转印材料载体的辊相邻的带表面，并且通过多个光电检测器检测转印图像的位移或图像浓度，检测转印的图案图像 从多个图像载体到图像转印体或转印材料载体。