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31. 发明授权

US08233813B2 Image forming apparatus and image-density control method 有权
标题翻译：图像形成装置和图像密度控制方法
公开(公告)号：US08233813B2
公开(公告)日：2012-07-31
申请号：US12482782
申请日：2009-06-11
申请人： Akira Yoshida , Shin Hasegawa , Hitoshi Ishibashi , Yoshiaki Miyashita , Kohta Fujimori , Nobutaka Takeuchi , Shuji Hirai , Kayoko Tanaka , Yushi Hirayama , Tetsuya Muto
发明人： Akira Yoshida , Shin Hasegawa , Hitoshi Ishibashi , Yoshiaki Miyashita , Kohta Fujimori , Nobutaka Takeuchi , Shuji Hirai , Kayoko Tanaka , Yushi Hirayama , Tetsuya Muto
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063
摘要： An image forming apparatus forms a plurality of tone patterns of different colors, each of which containing a plurality of toner patches having different toner densities. Some of the toner patches in each of the tone patterns are formed with a predetermined fixed developing bias and the rest of the toner patches in each of the tone patterns are formed with developing biases set based on previous developing biases that have been obtained through a previous control process. The largest toner density of the toner patches in each of the tone patterns is determined based on a magnitude relation of previous index values obtained through the previous control process.
摘要翻译：图像形成装置形成不同颜色的多个色调图案，每个色调图案包含具有不同调色剂浓度的多个调色剂贴片。每个色调图案中的一些调色剂贴片以预定的固定的显影偏压形成，并且每个色调图案中的其余调色剂贴片形成有基于先前显影偏差设定的显影偏压，控制过程。基于通过先前的控制处理获得的先前指标值的大小关系确定每个色调图案中的调色剂贴片中最大的调色剂浓度。

32. 发明授权

US08175471B2 Image forming apparatus and image density control method 有权
标题翻译：图像形成装置和图像浓度控制方法
公开(公告)号：US08175471B2
公开(公告)日：2012-05-08
申请号：US11952553
申请日：2007-12-07
申请人： Kentaroh Tomita , Nobutaka Takeuchi , Hitoshi Ishibashi , Shin Hasegawa , Shinji Kato , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama
发明人： Kentaroh Tomita , Nobutaka Takeuchi , Hitoshi Ishibashi , Shin Hasegawa , Shinji Kato , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/0132
摘要： An image forming apparatus is disclosed that includes an image density control unit that performs control operations based on an image density control condition that is adjustably set to control an output image to have a predetermined image density, an image density control condition modifying unit that calculates a modified image density control condition based on information on an amount of toner exchanged at a developing apparatus within a predetermined period and a parameter for image density control condition calculation and sets the modified image density control condition as the image density control condition to be used by the image density control unit, and a parameter modifying unit that modifies the parameter for image density control condition calculation used by the image density control condition modifying unit based on a toner pattern detection result obtained by detecting a toner pattern formed on a belt member.
摘要翻译：公开了一种图像形成装置，其包括：图像浓度控制单元，其基于可调节地设置为控制输出图像以具有预定图像浓度的图像浓度控制条件执行控制操作;图像浓度控制条件修改单元，基于在预定时段内在显影装置处交换的调色剂量的信息和图像浓度控制条件计算的参数的修改的图像浓度控制条件，并将修改的图像浓度控制条件设置为由图像浓度控制条件使用的图像浓度控制条件图像浓度控制单元和参数修改单元，其基于通过检测形成在带构件上的调色剂图案而获得的调色剂图案检测结果来修改由图像浓度控制条件修改单元使用的图像浓度控制条件计算的参数。

33. 发明授权

US08027605B2 Image forming apparatus and image density control method 有权
标题翻译：图像形成装置和图像浓度控制方法
公开(公告)号：US08027605B2
公开(公告)日：2011-09-27
申请号：US12246601
申请日：2008-10-07
申请人： Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Akira Yoshida
发明人： Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Akira Yoshida
IPC分类号： G03G15/10 , G03G15/08
CPC分类号： G03G15/0853 , G03G15/5058 , G03G2215/0888
摘要： An image forming apparatus and an image density control method for controlling image density in the image forming apparatus, involving adjusting a toner concentration control reference value in accordance with an amount of the toner replaced in a developing device so as to adjust the image density to maintain a consistent developability and changing image forming intervals in accordance with an amount of the toner replaced in the developing device during continuous printing operation.
摘要翻译：一种用于控制图像形成装置中的图像浓度的图像形成装置和图像浓度控制方法，包括根据在显影装置中更换的调色剂量调节调色剂浓度控制基准值，以便调节图像浓度以维持根据在连续打印操作期间在显影装置中更换的调色剂的量的一致的显影性和变化的图像形成间隔。

34. 发明申请

US20110200349A1 Optical sensor and image forming apparatus incorporating optical sensor 有权
标题翻译：光学传感器和包含光学传感器的成像设备
公开(公告)号：US20110200349A1
公开(公告)日：2011-08-18
申请号：US12929808
申请日：2011-02-17
申请人： Akira Yoshida , Hitoshi Ishibashi , Yoshiaki Miyashita , Kohta Fujimori , Nobutaka Takeuchi , Kayoko Tanaka
发明人： Akira Yoshida , Hitoshi Ishibashi , Yoshiaki Miyashita , Kohta Fujimori , Nobutaka Takeuchi , Kayoko Tanaka
IPC分类号： G03G15/00 , G01J1/42
CPC分类号： G03G15/5058 , G03G2215/00037
摘要： An optical sensor attached to an apparatus includes a substrate and a light emitting element mounted on a first surface of the substrate. The light emitting element emits a light to a detection object in parallel to the substrate. A light receiving element is mounted on the first surface of the substrate. The light receiving element receives a regular reflection light reflected by the detection object. The said first surface serves as a positioning reference for positioning the optical sensor on an optical sensor mounting member provided in the apparatus.
摘要翻译：附接到设备的光学传感器包括安装在基板的第一表面上的基板和发光元件。发光元件将平行于基板的光发射到检测对象。光接收元件安装在基板的第一表面上。光接收元件接收由检测对象反射的正反射光。所述第一表面用作用于将光学传感器定位在设置在设备中的光学传感器安装构件上的定位参考。

35. 发明授权

US07929873B2 Image forming apparatus and image density control method 有权
标题翻译：图像形成装置和图像浓度控制方法
公开(公告)号：US07929873B2
公开(公告)日：2011-04-19
申请号：US12037717
申请日：2008-02-26
申请人： Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Kentaroh Tomita , Akira Yoshida , Chiemi Hirano
发明人： Nobutaka Takeuchi , Shin Hasegawa , Hitoshi Ishibashi , Shuji Hirai , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Kentaroh Tomita , Akira Yoshida , Chiemi Hirano
IPC分类号： G03G15/08
CPC分类号： G03G15/0853 , G03G2215/0634
摘要： An image forming apparatus includes an image carrier configured to carry an electrostatic latent image, a developing device configured to develop the electrostatic latent image with a two-component developer including toner and magnetic carrier, a toner supplier configured to supply the toner to the developing device, a toner concentration detector configured to detect toner concentration in the two-component developer inside the developing device, and a controller. The controller is configured to detect first information to determine toner replacement amount in the developing device during a predetermined time period and second information to determine a charge characteristic of the toner in the developing device, change a toner concentration control reference value based on the first information and the second information, and control the toner concentration based on an output from the toner concentration detector and the toner concentration control reference value.
摘要翻译：图像形成装置包括构造成承载静电潜像的图像载体，构造成用包括调色剂和磁性载体的双组分显影剂显影静电潜像的显影装置，构造成将调色剂供给到显影装置的调色剂供应器调色剂浓度检测器，被配置为检测显影装置内的双组分显影剂中的调色剂浓度，以及控制器。控制器被配置为检测第一信息以确定在预定时间段期间显影装置中的调色剂更换量，以及用于确定显影装置中的调色剂的充电特性的第二信息，基于第一信息改变调色剂浓度控制参考值和第二信息，并且基于调色剂浓度检测器的输出和调色剂浓度控制参考值来控制调色剂浓度。

36. 发明授权

US07903986B2 Reuse method and a reusable device for an image forming apparatus having a first process linear velocity and a second image processing apparatus having a second process linear velocity 有权
标题翻译：具有第一处理线速度的图像形成装置和具有第二处理线速度的第二图像处理装置的再利用方法和可再利用装置
公开(公告)号：US07903986B2
公开(公告)日：2011-03-08
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。

37. 发明授权

US07881629B2 Image forming apparatus and image density control method 有权
标题翻译：图像形成装置和图像浓度控制方法
公开(公告)号：US07881629B2
公开(公告)日：2011-02-01
申请号：US11932198
申请日：2007-10-31
申请人： Nobutaka Takeuchi , Hitoshi Ishibashi , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Naoto Watanabe
发明人： Nobutaka Takeuchi , Hitoshi Ishibashi , Kohta Fujimori , Kayoko Tanaka , Yushi Hirayama , Naoto Watanabe
IPC分类号： G03G15/10 , G03G15/08
CPC分类号： G03G15/1605 , G03G15/0849 , G03G15/0853 , G03G2215/0161
摘要： In an image forming apparatus and an image density control method that are capable of suppressing the amount of toner consumed for a purpose other than image formation and responding to variation in the development ability of a development device due to environmental variation and the like such that a constant image density is obtained, the image density is maintained at a substantially fixed level by first target output value correcting means in accordance with a toner replacement amount and without consuming toner, and adjustment of the image density accompanying variation in the development ability due to environmental variation and the like is dealt with by second target output value correcting means in accordance with a toner pattern detection result. Hence, the frequency with which the toner pattern is detected in order to maintain the image density at a fixed level can be reduced in comparison with a case in which the image density is maintained at a fixed level on the basis of the toner pattern detection result alone, and as a result, the toner consumption amount can be suppressed.
摘要翻译：在图像形成装置和图像浓度控制方法中，能够抑制除了图像形成之外的目的而消耗的调色剂量，并且响应于由于环境变化等而导致的显影装置的显影能力的变化，使得通过第一目标输出值校正装置根据调色剂更换量并且不消耗调色剂，图像浓度保持在基本上固定的水平，并且由于环境而伴随着显影能力的变化的图像浓度的调整根据调色剂图案检测结果，由第二目标输出值校正装置处理变化等。因此，与根据调色剂图案检测结果将图像浓度保持在固定水平的情况相比，可以减少为了将图像浓度保持在固定水平而检测调色剂图案的频率，因此可以抑制调色剂消耗量。

38. 发明申请

US20100226664A1 IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE DENSITY THEREIN 有权
标题翻译：图像形成装置和控制图像密度的方法
公开(公告)号：US20100226664A1
公开(公告)日：2010-09-09
申请号：US12714790
申请日：2010-03-01
申请人： Akira YOSHIDA , Nobutaka Takeuchi , Shin Hasegawa , Yoshiaki Miyashita , Kohta Fujimori , Kayoko Tanaka
发明人： Akira YOSHIDA , Nobutaka Takeuchi , Shin Hasegawa , Yoshiaki Miyashita , Kohta Fujimori , Kayoko Tanaka
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G15/0849 , G03G15/0853 , G03G2215/0607
摘要： An image forming apparatus includes a developer unit to store two-component developer which includes toner and carrier and develop an electrostatic latent image formed on the image carrier, a toner concentration detector to detect toner concentration in the developer unit, a toner supply unit to supply toner to the developer unit, and a controller to control toner supply amount by controlling the toner supply unit by comparing an output value of the toner concentration detector with a reference value stored in a memory and correcting difference between output values of the toner concentration detector at two or more process linear velocities in accordance with the toner concentration in the developer unit. A compensation amount for correcting difference between output values of the toner concentration detector that differ depending on the process linear velocity is adjustable in accordance with the toner concentration in the development unit.
摘要翻译：图像形成装置包括：显影单元，用于存储包括调色剂和载体的双组分显影剂，并显影形成在图像载体上的静电潜像;调色剂浓度检测器，用于检测显影单元中的调色剂浓度;调色剂供应单元，调色剂到显影剂单元，以及控制器，通过将调色剂浓度检测器的输出值与存储在存储器中的参考值进行比较来控制调色剂供应单元来控制调色剂供应量，并且校正调色剂浓度检测器的输出值之间的差异根据显影剂单元中的调色剂浓度的两个或多个过程线速度。用于校正根据处理线速度不同的调色剂浓度检测器的输出值之差的补偿量根据显影单元中的调色剂浓度而调节。

39. 发明授权

US07778560B2 Image forming apparatus and method of adjusting charge bias 有权
标题翻译：图像形成装置和调整充电偏压的方法
公开(公告)号：US07778560B2
公开(公告)日：2010-08-17
申请号：US11834354
申请日：2007-08-06
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. A controller performs an adjustment to the AC voltage multiple times to gradually bring the AC voltage to a target value.
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。控制器多次对AC电压进行调整，以逐渐使AC电压达到目标值。

40. 发明授权

US07664413B2 Image forming device including a toner pattern forming unit 有权
标题翻译：图像形成装置，包括调色剂图案形成单元
公开(公告)号：US07664413B2
公开(公告)日：2010-02-16
申请号：US11600712
申请日：2006-11-17
申请人： Kazumi Kobayashi , Kohta Fujimori , Shin Hasegawa , Nobutaka Takeuchi , Takashi Enami , Kiichirou Shimizu
发明人： Kazumi Kobayashi , Kohta Fujimori , Shin Hasegawa , Nobutaka Takeuchi , Takashi Enami , Kiichirou Shimizu
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0161
摘要： An image forming device includes a toner pattern forming unit that forms a first toner pattern and a second toner pattern downstream of the first toner pattern along a direction of advance of an intermediate transfer belt on the intermediate transfer belt. The first toner pattern is configured to include color patches of which a color density gradually differs so that, when detected by a sensor, a fluctuation of a toner density is adjusted by a feedback data. The second toner pattern is configured to prevent a cleaning blade from being twisted by a friction of the intermediate transfer belt due to the toner lubrication.
摘要翻译：图像形成装置包括调色剂图案形成单元，其沿着中间转印带上的中间转印带的前进方向形成第一调色剂图案和第一调色剂图案下游的第二调色剂图案。第一调色剂图案被配置为包括颜色密度逐渐变化的色标，使得当由传感器检测时，通过反馈数据调节调色剂浓度的波动。第二调色剂图案被配置为防止由于调色剂润滑而导致中间转印带的摩擦而导致的清洁刮板扭曲。

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