公开(公告)号：US20130236200A1

公开(公告)日：2013-09-12

申请号：US13790672

申请日：2013-03-08

申请人： Kayoko TANAKA ,  Kohta Fujimori ,  Keita Sone

发明人： Kayoko TANAKA ,  Kohta Fujimori ,  Keita Sone

IPC分类号： G03G15/00

CPC分类号： G03G15/0824 ,  G03G15/0189 ,  G03G15/0849 ,  G03G15/5058 ,  G03G2215/0158

摘要： An image forming apparatus includes a controller configured to control a toner-image forming device to form a toner patch; and a detector configured to detect the toner patch on the image carrier. During a non-printing period, the controller causes a toner-image forming device to form toner patches, causes the detector to detect densities of the toner patches, and adjusts an image-forming condition of the toner-image forming device based on detected densities. During a printing period, the controller causes the toner-image forming device to form an output image in an image area and form fewer toner patches in a non-image area, causes the detector to detect densities of the fewer toner patches, and adjusts the image-forming condition of the toner-image forming device based on detected densities. The fewer toner patches are selected from and fewer than the plurality of toner patches formed during the non-printing period.

摘要翻译： 图像形成装置包括：控制器，被配置为控制调色剂图像形成装置以形成调色剂贴片; 以及被配置为检测图像载体上的调色剂贴片的检测器。 在非打印期间，控制器使调色剂图像形成装置形成调色剂贴片，使得检测器检测调色剂色块的浓度，并且基于检测到的浓度调节调色剂图像形成装置的图像形成条件 。 在打印期间，控制器使得调色剂图像形成装置在图像区域中形成输出图像，并且在非图像区域中形成较少的调色剂贴片，使得检测器检测到更少调色剂贴片的密度，并调整 基于检测到的浓度，调色剂图像形成装置的图像形成条件。 从非印刷期间形成的多个调色剂片中选择的和少于更少的调色剂片。

公开(公告)号：US08942586B2

公开(公告)日：2015-01-27

申请号：US13790672

申请日：2013-03-08

申请人： Kayoko Tanaka ,  Kohta Fujimori ,  Keita Sone

发明人： Kayoko Tanaka ,  Kohta Fujimori ,  Keita Sone

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G15/01

CPC分类号： G03G15/0824 ,  G03G15/0189 ,  G03G15/0849 ,  G03G15/5058 ,  G03G2215/0158

摘要： An image forming apparatus includes a controller configured to control a toner-image forming device to form a toner patch; and a detector configured to detect the toner patch on the image carrier. During a non-printing period, the controller causes a toner-image forming device to form toner patches, causes the detector to detect densities of the toner patches, and adjusts an image-forming condition of the toner-image forming device based on detected densities. During a printing period, the controller causes the toner-image forming device to form an output image in an image area and form fewer toner patches in a non-image area, causes the detector to detect densities of the fewer toner patches, and adjusts the image-forming condition of the toner-image forming device based on detected densities. The fewer toner patches are selected from and fewer than the plurality of toner patches formed during the non-printing period.

摘要翻译： 图像形成装置包括：控制器，被配置为控制调色剂图像形成装置以形成调色剂贴片; 以及被配置为检测图像载体上的调色剂贴片的检测器。 在非打印期间，控制器使调色剂图像形成装置形成调色剂贴片，使得检测器检测调色剂色块的浓度，并且基于检测到的浓度调节调色剂图像形成装置的图像形成条件 。 在打印期间，控制器使得调色剂图像形成装置在图像区域中形成输出图像，并且在非图像区域中形成较少的调色剂贴片，使得检测器检测到更少调色剂贴片的密度，并调整 基于检测到的浓度，调色剂图像形成装置的图像形成条件。 从非印刷期间形成的多个调色剂片中选择的和少于更少的调色剂片。

公开(公告)号：US20120294637A1

公开(公告)日：2012-11-22

申请号：US13453253

申请日：2012-04-23

申请人： Kayoko TANAKA ,  Kohta Fujimori ,  Keita Sone

发明人： Kayoko TANAKA ,  Kohta Fujimori ,  Keita Sone

IPC分类号： G03G15/06

CPC分类号： G03G15/5054 ,  G03G15/0115 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/5058 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0164

摘要： In an image forming apparatus, a processor performs: a solid density stabilization of adjusting, in accordance with detected toner adhesion amounts of solid toner images of solid tone patterns, a condition to form solid images with respective target image densities; a misregistration reduction of adjusting, in accordance with detection timing of position detection toner images of misregistration detection patterns, a condition to reduce misregistration of toner images; and a halftone density stabilization of adjusting, in accordance with detected toner adhesion amounts of area coverage modulation toner images, a condition to form halftone images with respective target image densities. The processor continuously performs the solid density stabilization and the misregistration reduction, and starts the halftone density stabilization when the solid density stabilization is completed and the misregistration reduction is not completed, to concurrently perform a step of the misregistration reduction and at least a step of the halftone density stabilization.

摘要翻译： 在图像形成装置中，处理器执行：固体密度稳定化，其根据检测到的固体色调图像的固体调色剂图像的调色剂附着量调整形成具有各自目标图像密度的实心图像的条件; 根据调色剂图像的位置检测调色剂图像的检测定时来调整调色剂图像的重合不良的条件的对准减少; 以及半色调浓度稳定化，根据检测到的调色剂调色剂图像的调色剂附着量调整形成具有各自目标图像浓度的半色调图像的条件。 处理器连续地执行固体密度稳定化和不对准降低，并且当固体密度稳定化完成并且未排序失调降低时，开始半色调浓度稳定化，同时进行不对准降低的步骤，并且至少在 半色调密度稳定。

公开(公告)号：US08942584B2

公开(公告)日：2015-01-27

申请号：US13453253

申请日：2012-04-23

申请人： Kayoko Tanaka ,  Kohta Fujimori ,  Keita Sone

发明人： Kayoko Tanaka ,  Kohta Fujimori ,  Keita Sone

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/5054 ,  G03G15/0115 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/5058 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0164

摘要： In an image forming apparatus, a processor performs: a solid density stabilization of adjusting, in accordance with detected toner adhesion amounts of solid toner images of solid tone patterns, a condition to form solid images with respective target image densities; a misregistration reduction of adjusting, in accordance with detection timing of position detection toner images of misregistration detection patterns, a condition to reduce misregistration of toner images; and a halftone density stabilization of adjusting, in accordance with detected toner adhesion amounts of area coverage modulation toner images, a condition to form halftone images with respective target image densities. The processor continuously performs the solid density stabilization and the misregistration reduction, and starts the halftone density stabilization when the solid density stabilization is completed and the misregistration reduction is not completed, to concurrently perform a step of the misregistration reduction and at least a step of the halftone density stabilization.

摘要翻译： 在图像形成装置中，处理器执行：固体密度稳定化，其根据检测到的固体色调图像的固体调色剂图像的调色剂附着量调整形成具有各自目标图像密度的实心图像的条件; 根据调色剂图像的位置检测调色剂图像的检测定时来调整调色剂图像的重合不良的条件的对准减少; 以及半色调浓度稳定化，根据检测到的调色剂调色剂图像的调色剂附着量调整形成具有各自目标图像浓度的半色调图像的条件。 处理器连续地执行固体密度稳定化和不对准降低，并且当固体密度稳定化完成并且未排序失调减少时，开始半色调浓度稳定化，同时进行不对准降低的步骤，并且至少在步骤 半色调密度稳定。

公开(公告)号：US09031428B2

公开(公告)日：2015-05-12

申请号：US13707797

申请日：2012-12-07

申请人： Kohta Fujimori ,  Kayoko Tanaka ,  Keita Sone

发明人： Kohta Fujimori ,  Kayoko Tanaka ,  Keita Sone

IPC分类号： G03G15/00 ,  G01N21/55 ,  G03G15/01

CPC分类号： G03G15/55 ,  G01N21/55 ,  G03G15/0189 ,  G03G15/5058

摘要： 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.

摘要翻译： 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的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：US20150362868A1

公开(公告)日：2015-12-17

申请号：US14740175

申请日：2015-06-15

申请人： Keita Sone ,  Nobutaka Takeuchi ,  Shinichi Akatsu ,  Tomohide Takenaka ,  Kohta Fujimori ,  Tetsuya Muto ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu ,  Kazufumi Kimura

发明人： Keita Sone ,  Nobutaka Takeuchi ,  Shinichi Akatsu ,  Tomohide Takenaka ,  Kohta Fujimori ,  Tetsuya Muto ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu ,  Kazufumi Kimura

IPC分类号： G03G15/16

CPC分类号： G03G15/1615 ,  G03G15/5054 ,  G03G15/5062

摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.

摘要翻译： 图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。 基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。

公开(公告)号：US09436135B2

公开(公告)日：2016-09-06

申请号：US14740175

申请日：2015-06-15

申请人： Keita Sone ,  Nobutaka Takeuchi ,  Shinichi Akatsu ,  Tomohide Takenaka ,  Kohta Fujimori ,  Tetsuya Muto ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu ,  Kazufumi Kimura

发明人： Keita Sone ,  Nobutaka Takeuchi ,  Shinichi Akatsu ,  Tomohide Takenaka ,  Kohta Fujimori ,  Tetsuya Muto ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu ,  Kazufumi Kimura

IPC分类号： G03G15/16

CPC分类号： G03G15/1615 ,  G03G15/5054 ,  G03G15/5062

摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.

摘要翻译： 图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。 基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。

公开(公告)号：US08045874B2

公开(公告)日：2011-10-25

申请号：US12367736

申请日：2009-02-09

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

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

IPC分类号： G03G15/00 ,  G03G15/06

CPC分类号： G03G15/0131 ,  G03G15/5058 ,  G03G2215/00037 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00063

摘要： 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.

摘要翻译： 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

申请人： 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

发明人： 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分类号： G03G15/08

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/5041 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0889

摘要： 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.

摘要翻译： 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。