公开(公告)号：US07796902B2

公开(公告)日：2010-09-14

申请号：US12382506

申请日：2009-03-18

申请人： Naoto Watanabe ,  Tatsuya Niimi ,  Hitoshi Ishibashi

发明人： Naoto Watanabe ,  Tatsuya Niimi ,  Hitoshi Ishibashi

IPC分类号： G03G15/00

CPC分类号： G03G15/5037

摘要： An image forming apparatus includes a charge unit, an exposure unit, an exposure voltage detector, a development unit, and a concentration detector. The exposure voltage detector detects a potential of latent image formed as a test pattern on an image carrier. The concentration detector detects concentration of developed test pattern. The image forming apparatus further includes an exposure power controller, an exposure ratio controller, a charging voltage controller, a development bias voltage controller, and an image forming condition adjustment controller. A suitable image forming condition is computed using test patterns formed by changing combinations of charging voltage, exposure power, and exposure duty. The charging voltage is changed in two levels or more. The exposure power is changed in three levels or more. The exposure duty per unit area is changed in two levels or more.

摘要翻译： 图像形成装置包括充电单元，曝光单元，曝光电压检测器，显影单元和浓度检测器。 曝光电压检测器检测在图像载体上形成为测试图案的潜像的电位。 浓度检测器检测显影测试图案的浓度。 图像形成装置还包括曝光功率控制器，曝光比率控制器，充电电压控制器，显影偏压控制器和图像形成条件调节控制器。 使用通过改变充电电压，曝光功率和曝光占空比的组合形成的测试图案来计算合适的图像形成条件。 充电电压在两个等级以上更改。 曝光功率在三个等级以上更改。 每单位面积的曝光负荷在两个等级以上更改。

公开(公告)号：US20090238591A1

公开(公告)日：2009-09-24

申请号：US12382506

申请日：2009-03-18

申请人： Naoto Watanabe ,  Tatsuya Niimi ,  Hitoshi Ishibashi

发明人： Naoto Watanabe ,  Tatsuya Niimi ,  Hitoshi Ishibashi

IPC分类号： G03G15/043 ,  G03G15/06

CPC分类号： G03G15/5037

摘要： An image forming apparatus includes a charge unit, an exposure unit, an exposure voltage detector, a development unit, and a concentration detector. The exposure voltage detector detects a potential of latent image formed as a test pattern on an image carrier. The concentration detector detects concentration of developed test pattern. The image forming apparatus further includes an exposure power controller, an exposure ratio controller, a charging voltage controller, a development bias voltage controller, and an image forming condition adjustment controller. A suitable image forming condition is computed using test patterns formed by changing combinations of charging voltage, exposure power, and exposure duty. The charging voltage is changed in two levels or more. The exposure power is changed in three levels or more. The exposure duty per unit area is changed in two levels or more.

摘要翻译： 图像形成装置包括充电单元，曝光单元，曝光电压检测器，显影单元和浓度检测器。 曝光电压检测器检测在图像载体上形成为测试图案的潜像的电位。 浓度检测器检测显影测试图案的浓度。 图像形成装置还包括曝光功率控制器，曝光比率控制器，充电电压控制器，显影偏压控制器和图像形成条件调节控制器。 使用通过改变充电电压，曝光功率和曝光占空比的组合形成的测试图案来计算合适的图像形成条件。 充电电压在两个等级以上更改。 曝光功率在三个等级以上更改。 每单位面积的曝光负荷在两个等级以上更改。

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。

公开(公告)号：US07821677B2

公开(公告)日：2010-10-26

申请号：US11430978

申请日：2006-05-10

申请人： 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

发明人： 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分类号： H04N1/04

CPC分类号： G03G15/1605 ,  G03G15/235 ,  G03G15/6564 ,  G03G15/6567 ,  G03G2215/0158 ,  G03G2215/1623

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07672602B2

公开(公告)日：2010-03-02

申请号：US11508823

申请日：2006-08-24

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/5062 ,  G03G15/0849 ,  G03G15/0856 ,  G03G15/556 ,  G03G2215/00755

摘要： A developing unit supplies toner from a developing roller to an electrostatic latent image formed on an image carrier, and creates a visual image. A forced consumption unit causes, when a proportion of number of pixels used for forming the electrostatic latent image for a maximum image effective-width is equal to or less than a predetermined value, a forced consumption of toner by an amount corresponding to a difference between a toner amount corresponding to the number of pixels and a predetermined toner consumption amount. The forced consumption unit adds toner of an amount used in the forced consumption to an amount of toner to be supplied in a next imaging process.

摘要翻译： 显影单元将调色剂从显影辊供给到形成在图像载体上的静电潜像，并产生视觉图像。 当用于形成最大图像有效宽度的静电潜像的像素数量的比例等于或小于预定值时，强制消耗单元导致调色剂的强制消耗量对应于 与像素数相对应的调色剂量和预定的调色剂消耗量。 强制消耗单元将在强制消耗中使用的量的调色剂添加到在下一个成像处理中供应的调色剂量。

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。

公开(公告)号：US20070025748A1

公开(公告)日：2007-02-01

申请号：US11492789

申请日：2006-07-26

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

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

IPC分类号： G03G15/00

CPC分类号： G03G15/5033 ,  G03G15/5058 ,  G03G2215/00042

摘要： An image forming apparatus includes an image carrying member, an image forming mechanism, an optical sensor, and a controller. The image forming mechanism performs an image forming operation for forming a reference toner image on the image carrying member under a specific setting associated with the image forming mechanism. The optical sensor is arranged in a vicinity to the image carrying member. The controller performs an optical toner test for checking, by using the optical sensor, optical characteristics of the reference toner image formed on the image carrying member and to adjust the specific setting based on a result of the optical toner test.

摘要翻译： 图像形成装置包括图像承载构件，图像形成机构，光学传感器和控制器。 图像形成机构在与图像形成机构相关联的特定设置下，在图像承载部件上执行用于形成基准调色剂图像的图像形成操作。 光学传感器布置在图像承载构件附近。 控制器执行光学调色剂测试，通过使用光学传感器来检查形成在图像承载部件上的参考调色剂图像的光学特性，并且基于光学调色剂测试的结果来调整特定设置。

公开(公告)号：US20070019976A1

公开(公告)日：2007-01-25

申请号：US11477673

申请日：2006-06-30

申请人： 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

发明人： 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分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/0119

摘要： 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.

摘要翻译： 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：US20060024076A1

公开(公告)日：2006-02-02

申请号：US11192045

申请日：2005-07-29

申请人： Shinji Kato ,  Yushi Hirayama ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Naoto Watanabe ,  Kayoko Tanaka ,  Takashi Enami ,  Shinji Kobayashi ,  Kazumi Kobayashi ,  Fukutoshi Uchida ,  Noboru Sawayama

发明人： Shinji Kato ,  Yushi Hirayama ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Kohta Fujimori ,  Naoto Watanabe ,  Kayoko Tanaka ,  Takashi Enami ,  Shinji Kobayashi ,  Kazumi Kobayashi ,  Fukutoshi Uchida ,  Noboru Sawayama

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0119

摘要： A device for detecting image information includes an intermediate transfer member configured to hold a pattern image; a detecting unit configured to optically detect the pattern image; a secondary transfer unit configured to contact with and separate from the intermediate transfer member; and a control unit that controls the secondary transfer unit in such a manner that the secondary transfer unit does not contact the intermediate transfer member while the detecting unit is detecting the pattern image, and that controls the secondary transfer unit in such a manner that the secondary transfer unit contacts the intermediate transfer member after the detecting unit finishes detection of the pattern image.

摘要翻译： 一种用于检测图像信息的装置包括被配置为保持图案图像的中间转印部件; 检测单元，被配置为光学地检测所述图案图像; 二次转印单元，被配置为与中间转印元件接触并分离; 以及控制单元，其以所述二次转印单元在所述检测单元检测到所述图案图像时不与所述中间转印部件接触的方式控制所述二次转印单元，并且以这样的方式控制所述二次转印单元， 在检测单元完成图案图像的检测之后，转印单元接触中间转印部件。

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。