公开(公告)号：US20160378040A1

公开(公告)日：2016-12-29

申请号：US15190685

申请日：2016-06-23

申请人： Akio KOSUGE ,  Natsumi MATSUE ,  Keiko MATSUMOTO ,  Akira YOSHIDA ,  Yoichi SAKURAI ,  Yuuichiroh UEMATSU ,  Kohta FUJIMORI ,  Kayoko TANAKA

发明人： Akio KOSUGE ,  Natsumi MATSUE ,  Keiko MATSUMOTO ,  Akira YOSHIDA ,  Yoichi SAKURAI ,  Yuuichiroh UEMATSU ,  Kohta FUJIMORI ,  Kayoko TANAKA

IPC分类号： G03G15/00

CPC分类号： G03G15/556 ,  G03G15/01 ,  G03G15/5058

摘要： An image forming apparatus includes an image bearer, an image forming device to form a toner image on the image bearer, a transfer device to transfer the toner image to a recording medium, a line sensor as an image density sensor to detect image density of the toner image, and a controller operatively connected to the image density sensor. The image density sensor is disposed so as to be shorter in a rotational direction of the image bearer than in a width direction of the image bearer perpendicular to the rotational direction of the image bearer. The controller forms a shading pattern image including a plurality of patches on the image bearer, and detects image density of the plurality of patches, so as to control image density. The shading pattern image is shorter in the rotational direction of the image bearer than in the width direction of the image bearer.

摘要翻译： 图像形成装置包括图像载体，图像形成装置，用于在图像载体上形成调色剂图像，将调色剂图像转印到记录介质的转印装置，作为图像浓度传感器的线传感器，以检测图像密度 调色剂图像和可操作地连接到图像浓度传感器的控制器。 图像浓度传感器被设置为在图像承载体的旋转方向上比垂直于图像承载体的旋转方向的图像载体的宽度方向更短。 控制器在图像载体上形成包括多个斑块的阴影图案图像，并且检测多个斑块的图像浓度，以便控制图像浓度。 阴影图案图像在图像承载的旋转方向上比在图像承载的宽度方向上更短。

公开(公告)号：US20160266532A1

公开(公告)日：2016-09-15

申请号：US15052272

申请日：2016-02-24

申请人： Natsumi MATSUE ,  Kohta FUJIMORI ,  Kayoko TANAKA

发明人： Natsumi MATSUE ,  Kohta FUJIMORI ,  Kayoko TANAKA

IPC分类号： G03G15/00

CPC分类号： G03G15/553 ,  G03G15/5054

摘要： An image forming apparatus includes an image bearer that bears a toner image, a sensor, an adhesion amount calculator, and a wavelength determiner. The sensor includes a light source that emit light onto the image bearer, and an image element that detects reflected light that is emitted from the light source and reflected from the image bearer. The adhesion amount calculator calculates a toner adhesion amount of the toner image on the image bearer based on the reflected light having at least one wavelength among a plurality of wavelengths detected by the sensor. The wavelength determiner determines, based on color information of the image bearer detected by the sensor, a wavelength to be used in calculation of the toner adhesion amount by the adhesion amount calculator.

摘要翻译： 图像形成装置包括承载调色剂图像的图像载体，传感器，粘附量计算器和波长确定器。 传感器包括将光发射到图像载体上的光源，以及检测从光源发射并从图像载体反射的反射光的图像元件。 粘附量计算器基于由传感器检测到的多个波长中具有至少一个波长的反射光，计算调色剂图像在图像载体上的调色剂附着量。 波长确定器基于由传感器检测到的图像载体的颜色信息确定用于通过粘附量计算器计算调色剂附着量的波长。

公开(公告)号：US20100278549A1

公开(公告)日：2010-11-04

申请号：US12833787

申请日：2010-07-09

申请人： Hitoshi ISHIBASHI ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yushi HIRAYAMA ,  Nobutaka TAKEUCHI ,  Shinji KATO ,  Kayoko TANAKA ,  Naoto WATANABE ,  Kentaroh TOMITA ,  Satoru KOMATSUBARA ,  Akio KOSUGE

发明人： Hitoshi ISHIBASHI ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yushi HIRAYAMA ,  Nobutaka TAKEUCHI ,  Shinji KATO ,  Kayoko TANAKA ,  Naoto WATANABE ,  Kentaroh TOMITA ,  Satoru KOMATSUBARA ,  Akio KOSUGE

IPC分类号： G03G15/02

CPC分类号： G03G15/0266 ,  G03G2215/021

摘要： An image forming apparatus includes an image carrier configured to carry an image and a charger to which a direct current voltage overlapped with an AC voltage is applied as a charging bias to charge the image carrier. The charger is positioned in contact or contactlessly with the image carrier. The AC voltage applied to the charger in an adjustment of the AC voltage is not less than twice a charging start voltage Vth at which the image carrier starts to be charged.

摘要翻译： 图像形成装置包括被配置为承载图像的图像载体和与AC电压重叠的直流电压的充电器作为充电偏压以对图像载体充电。 充电器与图像载体接触或非接触地定位。 在AC电压调节中施加到充电器的AC电压不小于图像载体开始充电的充电开始电压Vth的两倍。

公开(公告)号：US20090279907A1

公开(公告)日：2009-11-12

申请号：US12431243

申请日：2009-04-28

申请人： Kayoko TANAKA ,  Shin HASEGAWA ,  Hitoshi ISHIBASHI ,  Shuji HIRAI ,  Kohta FUJIMORI ,  Nobutaka TAKEUCHI ,  Yushi HIRAYAMA ,  Akira YOSHIDA

发明人： Kayoko TANAKA ,  Shin HASEGAWA ,  Hitoshi ISHIBASHI ,  Shuji HIRAI ,  Kohta FUJIMORI ,  Nobutaka TAKEUCHI ,  Yushi HIRAYAMA ,  Akira YOSHIDA

IPC分类号： G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0894 ,  G03G2215/0888 ,  G03G2221/163

摘要： In a reuse method for reusing a reusable device and a sensor of a first image forming apparatus having a first process linear velocity in a second image forming apparatus having at least one second process linear velocity different from the first process linear velocity, the reusable device and the sensor are installed in the first image forming apparatus, and when the first image forming apparatus switches from the first process linear velocity to the second process linear velocity at an initial state before the reusable device is used, output of the sensor at the second process linear velocity is measured. When information on the output of the sensor at the second process linear velocity is stored, the reusable device and the sensor are removed from the first image forming apparatus and installed in the second image forming apparatus.

摘要翻译： 在一种用于在具有至少一个不同于第一处理线速度的至少一个第二处理线速度的第二图像形成装置中重复使用具有第一处理线速度的第一成像装置的可重复使用装置和传感器的再利用方法中，所述可重复使用装置和 传感器安装在第一图像形成装置中，并且当第一图像形成装置在使用可再利用装置之前的初始状态下从第一处理线速度切换到第二处理线速度时，在第二处理时输出传感器 测量线速度。 当存储关于第二处理线速度的传感器的输出的信息时，从第一图像形成装置移除可再利用装置和传感器并安装在第二图像形成装置中。

公开(公告)号：US20110052239A1

公开(公告)日：2011-03-03

申请号：US12856114

申请日：2010-08-13

申请人： Kayoko TANAKA ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yoshiaki MIYASHITA ,  Nobutaka TAKEUCHI ,  Akira YOSHIDA

发明人： Kayoko TANAKA ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yoshiaki MIYASHITA ,  Nobutaka TAKEUCHI ,  Akira YOSHIDA

IPC分类号： G03G15/00 ,  G01N21/55

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

摘要： An optical sensor includes: a light-emitting unit; a light-receiving unit that receives light radiated from the light-emitting unit and reflected from a detection target and that outputs an output value in response to the light received; and a correcting unit that corrects the output value of the light-receiving unit when receiving the light reflected from the detection target based on the output value of the light-receiving unit obtained by irradiating a detection area of the optical sensor with light without any light reflective objects being present in the detection area.

摘要翻译： 光学传感器包括：发光单元; 光接收单元，其接收从所述发光单元辐射并从检测对象反射的光并响应于所接收的光而输出输出值; 以及校正单元，其基于通过用光照射光传感器的检测区域而获得的光接收单元的输出值来接收从所述检测对象反射的光而校正所述受光单元的输出值，而没有任何光 反射物体存在于检测区域中。

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：US20070122168A1

公开(公告)日：2007-05-31

申请号：US11561053

申请日：2006-11-17

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/0853 ,  G03G2215/0119 ,  G03G2215/0822

摘要： 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.

摘要翻译： 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：US20160349658A1

公开(公告)日：2016-12-01

申请号：US15155317

申请日：2016-05-16

申请人： Saki IZUMI ,  Hiroyuki SUGIYAMA ,  Shunichi HASHIMOTO ,  Naoyuki OZAKI ,  Mikio ISHIBASHI ,  Kayoko TANAKA ,  Kohta FUJIMORI

发明人： Saki IZUMI ,  Hiroyuki SUGIYAMA ,  Shunichi HASHIMOTO ,  Naoyuki OZAKI ,  Mikio ISHIBASHI ,  Kayoko TANAKA ,  Kohta FUJIMORI

IPC分类号： G03G15/02

CPC分类号： G03G15/0266 ,  G03G15/5058

摘要： An image forming apparatus includes a latent image bearer to rotate, an image forming unit including a charger and a developing device, a charge power supply to output a charging bias applied to a charger, a transfer device, a toner adhesion amount, and a controller. The controller causes the image forming unit to form a background fog pattern in a background area of the latent image bearer while changing a background potential, acquires toner adhesion amount values detected at different positions of the background fog pattern, having different potentials, sorts the toner adhesion amount values in an order of the background potential, determines a relation between the background potential and background fog amount based the toner adhesion amount values except any toner adhesion amount value out of monotonicity, and adjust the charging bias to an optimum value computed based on the determined relation.

摘要翻译： 图像形成装置包括要转动的潜像载体，包括充电器和显影装置的图像形成单元，用于输出施加到充电器的充电偏压的充电电源，转印装置，调色剂附着量和控制器 。 控制器使图像形成单元在改变背景电位的同时在潜像承载体的背景区域中形成背景模糊图案，获取在具有不同电位的背景模式的不同位置处检测到的调色剂附着量值，对调色剂 基于背景电位的顺序的粘附量值基于除了单调性之外的任何调色剂附着量值之外的调色剂附着量值，确定背景电位和背景灰度量之间的关系，并将充电偏压调整到基于 确定的关系。

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：US20140294412A1

公开(公告)日：2014-10-02

申请号：US14203902

申请日：2014-03-11

申请人： Kayoko TANAKA ,  Keita SONE

发明人： Kayoko TANAKA ,  Keita SONE

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0164

摘要： An image forming apparatus includes an image bearer, a toner image forming unit, a detector, and a controller to adjust an image forming condition based on a detection result by the detector. During a non-printing period, multiple toner patterns are formed in an end and center portions of the image bearer in a direction perpendicular to a direction in which the image bearer moves, and a smaller number of toner patterns selected from the multiple toner patterns are formed in a non-image area, in the end portion of the image bearer, during a printing period. The controller determines a target density X of the smaller number of toner patterns by X=H (a mean detected density of the multiple toner patterns formed in the end portion)×J (a predetermined reference value)/I(a mean detected density of the multiple toner patterns formed in the end portion and in the center portion).

摘要翻译： 图像形成装置包括图像载体，调色剂图像形成单元，检测器以及基于检测器的检测结果来调整图像形成条件的控制器。 在非打印期间，在垂直于图像承载移动的方向的方向上，在图像承载体的端部和中心部分形成多个调色剂图案，并且从多个调色剂图案中选择的较少数量的调色剂图案是 形成在图像承载体的端部的非图像区域中。 控制器通过X = H（在端部中形成的多个调色剂图案的平均检测密度）×J（预定基准值）/ I（平均检测密度）确定较小数量的调色剂图案的目标浓度X. 多个调色剂图案形成在端部和中心部分中）。