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31. 发明授权

US07809291B2 Image forming apparatus with a two component developer, toner density detection and toner density correction 有权
标题翻译：具有双组分显影剂的图像形成装置，调色剂浓度检测和调色剂浓度校正
公开(公告)号：US07809291B2
公开(公告)日：2010-10-05
申请号：US11558674
申请日：2006-11-10
申请人： Nobutaka Takeuchi , Shinji Kato , Shin Hasegawa , Kouta Fujimori , Kayoko Tanaka , Yushi Hirayama , Takashi Enami , Kazumi Kobayashi , Kiichiro Shimizu
发明人： Nobutaka Takeuchi , Shinji Kato , Shin Hasegawa , Kouta Fujimori , Kayoko Tanaka , Yushi Hirayama , Takashi Enami , Kazumi Kobayashi , Kiichiro Shimizu
IPC分类号： G03G15/08
CPC分类号： G03G15/5041 , G03G15/0849 , G03G15/0853
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 output value Vt of the magnetic permeability sensor and the target output value Vtref are compared, and the toner density is controlled by controlling a powder pump on the basis of the comparative result thereof so that the output value Vt approximates the target output value Vtref. In addition, the target output value Vtref is corrected on the basis of the detected result of the image coverage ratio so as to maintain a predetermined development potential of the development apparatus. By virtue of this, even when image forming that involves a significant change in the toner replacement amount in the development apparatus is performed, for example, even when an image of high image coverage ratio is output, the toner density is adjusted to maintain the development capability at a constant, and a predetermined image density is ensured. Moreover, because the image coverage ratio can be detected without consuming toner, toner does not need to be consumed when the target output value Vtref is corrected.
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。比较磁导率传感器的输出值Vt和目标输出值Vtref，并根据其比较结果控制粉末泵来控制调色剂浓度，使得输出值Vt近似于目标输出值Vtref。此外，基于图像覆盖率的检测结果来校正目标输出值Vtref，以保持显影装置的预定显影电位。由此，即使在进行显影装置中的调色剂更换量的显着变化的图像形成的情况下，即使输出高图像覆盖率的图像，也可以调整调色剂浓度以保持显影能力恒定，并且确保了预定的图像浓度。此外，由于可以在不消耗调色剂的情况下检测图像覆盖率，当校正目标输出值Vtref时，不需要消耗调色剂。

32. 发明授权

US08103181B2 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：US08103181B2
公开(公告)日：2012-01-24
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。

33. 发明申请

US20080031646A1 IMAGE FORMING APPARATUS AND METHOD OF ADJUSTING CHARGE BIAS 有权
标题翻译：图像形成装置和调整电荷偏差的方法
公开(公告)号：US20080031646A1
公开(公告)日：2008-02-07
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： G03G15/06
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。

34. 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。

35. 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。

36. 发明申请

US20080145078A1 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：US20080145078A1
公开(公告)日：2008-06-19
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： G03G15/10
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，以及参数修改单元，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。

37. 发明授权

US08455851B2 Optical sensor and image forming apparatus 失效
标题翻译：光学传感器和成像设备
公开(公告)号：US08455851B2
公开(公告)日：2013-06-04
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： G01N21/55 , G03G15/00
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。

38. 发明授权

US08095025B2 Image forming apparatus capable of efficient toner concentration control 有权
标题翻译：能够高效调色剂浓度控制的图像形成装置
公开(公告)号：US08095025B2
公开(公告)日：2012-01-10
申请号：US11867391
申请日：2007-10-04
申请人： Hitoshi Ishibashi , Shin Hasegawa , Kohta Fujimori , Nobutaka Takeuchi , Kayoko Tanaka , Yushi Hirayama , Kentaroh Tomita , Shuji Hirai
发明人： Hitoshi Ishibashi , Shin Hasegawa , Kohta Fujimori , Nobutaka Takeuchi , Kayoko Tanaka , Yushi Hirayama , Kentaroh Tomita , Shuji Hirai
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063
摘要： An image forming apparatus includes an image forming unit configured to form a plurality of toner images on an image carrier, an optical detector configured to detect reflection light from the toner image, and dedicated to detect infrared rays and near-infrared rays, and a controller configured to perform a predetermined control using a detection results of the optical detector. Gradation pattern that is comprised of a plurality of toner patches formed in the image forming unit with an image forming condition to have different adhesive amounts, and is formed of at least two colors, and detection values detected by the optical detector are used for the predetermined control.
摘要翻译：图像形成装置包括：图像形成单元，被配置为在图像载体上形成多个调色剂图像;光学检测器，被配置为检测来自调色剂图像的反射光，并专用于检测红外线和近红外线;以及控制器被配置为使用所述光学检测器的检测结果来执行预定的控制。由形成在图像形成单元中的具有不同粘合剂量的图像形成条件的多个调色剂贴片构成的并且由至少两种颜色形成并由光学检测器检测的检测值的渐变图案用于预定的控制。

39. 发明授权

US08503893B2 Image forming apparatus and method for controlling image density 有权
标题翻译：用于控制图像密度的图像形成装置和方法
公开(公告)号：US08503893B2
公开(公告)日：2013-08-06
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。

40. 发明授权

US08099006B2 Image forming apparatus and image quality correction method used therein 有权
标题翻译：其中使用的图像形成装置和图像质量校正方法
公开(公告)号：US08099006B2
公开(公告)日：2012-01-17
申请号：US12425715
申请日：2009-04-17
申请人： Kohta Fujimori , Shin Hasegawa , Nobutaka Takeuchi , Hitoshi Ishibashi , Kayoko Tanaka , Yushi Hirayama
发明人： Kohta Fujimori , Shin Hasegawa , Nobutaka Takeuchi , Hitoshi Ishibashi , Kayoko Tanaka , Yushi Hirayama
IPC分类号： G03G15/00
CPC分类号： G03G15/0194 , G03G15/0136 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0148 , G03G2215/0158 , G03G2215/0161 , G03G2215/0164
摘要： An image forming apparatus includes multiple image forming units to form different single-color images with respective different color developers and a control system to selectively perform a multicolor image forming operation, a specific-color image forming operation, a multicolor image quality correction operation, and a specific-color image quality correction operation. The control system includes an image formation mode detection unit to ascertain which of the multicolor image forming operation and the specific-color image forming operation is performed prior to a request for image quality correction; and a correction instruction unit to order the multicolor image quality correction operation when the multicolor image quality correction operation is requested, the specific-color correction operation when the specific-color image quality correction operation is requested after the specific-color image forming operation, and the multicolor image quality correction operation when the specific-color image quality correction operation is requested after the multicolor image forming operation.
摘要翻译：图像形成装置包括多个图像形成单元，以形成具有各自不同颜色显影剂的不同单色图像;以及控制系统，用于选择性地执行多色图像形成操作，特定彩色图像形成操作，多色图像质量校正操作，以及特定彩色图像质量校正操作。控制系统包括图像形成模式检测单元，用于确定在图像质量校正请求之前执行多色图像形成操作和特定彩色图像形成操作中的哪一个; 以及校正指示单元，当要求多色图像质量校正操作时，命令多色图像质量校正操作，在特定彩色图像形成操作之后请求特定颜色图像质量校正操作时的特定颜色校正操作;以及在多色图像形成操作之后请求特定彩色图像质量校正操作时的多色图像质量校正操作。

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