公开(公告)号：US5333037A

公开(公告)日：1994-07-26

申请号：US22740

申请日：1993-02-24

申请人： Katsushi Inoue ,  Jitsuo Masuda ,  Teruhiko Noguchi ,  Itaru Kawabata

发明人： Katsushi Inoue ,  Jitsuo Masuda ,  Teruhiko Noguchi ,  Itaru Kawabata

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00

CPC分类号： G03G15/5041 ,  G03G15/1645 ,  G03G2215/00042

摘要： An image-quality stabilizer for an electrophotographic apparatus forms a toner patch on a photoreceptor drum, detects the amount of toner attracted to the photoreceptor drum by an optical sensor, and controls each processing device so that the detected value is equal to a reference value which has been detected and stored when the number of image forming operations performed is low. After the control, the toner patch is transferred to a transfer sheet, and the amount of toner remaining on the photoreceptor drum is detected. The reference value is adjusted based on the detected value so as to compensate for a lowering of transfer efficiency. Or the lowering of transfer efficiency is compensated by controlling variables such as transfer output so that the detected value is equal to a reference residual value which has been detected and stored when the number of image forming operations performed is low. This arrangement restrains a lowering of image density due to a change in the transfer efficiency. It is therefore possible to control stabilizing the image quality accurately and to form images of stable quality.

摘要翻译： 用于电子照相设备的图像质量稳定器在感光鼓上形成调色剂贴片，通过光学传感器检测吸引到感光鼓的调色剂的量，并控制每个处理装置，使得检测值等于参考值， 当执行的图像形成操作的数量低时已经检测和存储。 在控制之后，将调色剂贴片转印到转印纸上，并检测剩余在感光鼓上的调色剂量。 基于检测值来调整基准值，以补偿转印效率的降低。 或者通过控制诸如传送输出的变量来补偿传送效率的降低，使得当所执行的图像形成操作的数量低时，检测值等于已经被检测和存储的参考剩余值。 这种布置限制了由于转印效率的变化而导致的图像浓度的降低。 因此，可以精确地控制图像质量的稳定化并形成质量稳定的图像。

公开(公告)号：US5708915A

公开(公告)日：1998-01-13

申请号：US636914

申请日：1996-04-24

申请人： Teruhiko Noguchi ,  Jitsuo Masuda ,  Katsushi Inoue

发明人： Teruhiko Noguchi ,  Jitsuo Masuda ,  Katsushi Inoue

IPC分类号： G03G15/00 ,  G03G15/02

CPC分类号： G03G15/0266 ,  G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054

摘要： An image-quality stabilizer in a copying machine feedback-controls a charger output according to an amount of toner on a photoreceptor drum detected by a patch sensor during a rotation of the photoreceptor drum after a copying operation. The image-quality stabilizer counts time that the copying machine is unused, i.e., time that the photoreceptor drum is stopped being rotated using a timer, and one-way controls the charger output according to the time immediately before the next copying operation. With these controlling operations, it is possible to correct a change in the copy density which is caused when the copying machine is used or left unused without increasing the consumption of toner and impairing the responsiveness of the copying machine, thereby achieving stable image quality.

摘要翻译： 复印机中的图像质量稳定器反馈 - 根据在复印操作期间感光鼓旋转期间由贴片传感器检测到的感光鼓上的调色剂的量来控制充电器输出。 图像质量稳定器计算复印机未使用的时间，即，使用定时器旋转感光鼓停止的时间，并且根据下一次复印操作之前的时间单向控制充电器输出。 通过这些控制操作，可以校正复印机使用或未使用时引起的复印浓度的变化，而不增加调色剂的消耗并且损害复印机的响应性，从而实现稳定的图像质量。

公开(公告)号：US5381212A

公开(公告)日：1995-01-10

申请号：US88874

申请日：1993-07-08

申请人： Teruhiko Noguchi ,  Hiroshi Kinashi ,  Jitsuo Masuda ,  Katsushi Inoue ,  Tatsuo Tanaka ,  Kunio Otsuki ,  Kazuya Adachi

发明人： Teruhiko Noguchi ,  Hiroshi Kinashi ,  Jitsuo Masuda ,  Katsushi Inoue ,  Tatsuo Tanaka ,  Kunio Otsuki ,  Kazuya Adachi

IPC分类号： G03G5/10 ,  G03G15/00 ,  G03G21/00 ,  G03G21/14

CPC分类号： G03G15/5041 ,  G03G15/751 ,  G03G5/10 ,  G03G2215/00042

摘要： A photoreceptor having a marking area whose optical reflection property differs from that of a non-marking area is formed in a portion of a surface of an electrically conductive substrate. The average line of a vertical section of the non-marking area cut across the border line with the marking area is M.sub.0 and the average line of a vertical section of the marking area cut across the border line is N.sub.0 and that straight lines touching the average lines M.sub.0 and N.sub.0 at the intersection of M.sub.0 and N.sub.0 are tangent lines M.sub.1 and N.sub.1, respectively, the acute angle .theta. between M.sub.1 and N.sub.1 is within the range of 0.degree..ltoreq..theta..ltoreq.30.degree.. Setting the angle .theta. within this range enables a photoconductive layer of a uniform characteristic to be laminated on the electrically conductive substrate even when the marking area is formed on the surface of the substrate. With this arrangement, since information for optimizing the image quality of copies is obtained from the same location of a photoreceptor drum with reference to the marking area, a photoreceptor for electrophotography always produces copies of stable image quality.

摘要翻译： 在导电性基板的表面的一部分形成有具有与非标记区域的光学反射特性不同的标记区域的感光体。 跨越与标记区域的边界线切割的非标记区域的垂直部分的平均线为M0，并且跨越边界线切割的标记区域的垂直截面的平均线为N0，并且直线接触平均值 M0和N0交点处的线M0和N0分别是切线M1和N1，M1和N1之间的锐角θ在0°<30°的范围内。 将角度θ设定在该范围内，即使在基板的表面上形成标记区域，也能够将均匀特性的光电导层层叠在导电性基板上。 利用这种布置，由于从相对于标记区域的感光鼓的相同位置获得用于优化拷贝的图像质量的信息，所以用于电子照相的感光体总是产生稳定图像质量的副本。

公开(公告)号：US4962408A

公开(公告)日：1990-10-09

申请号：US185027

申请日：1988-04-22

申请人： Jitsuo Masuda ,  Junji Morimoto ,  Ken Yamagishi ,  Hiroshi Kinashi ,  Itaru Kawabata ,  Teruhiko Noguchi

发明人： Jitsuo Masuda ,  Junji Morimoto ,  Ken Yamagishi ,  Hiroshi Kinashi ,  Itaru Kawabata ,  Teruhiko Noguchi

IPC分类号： G03G15/08 ,  G03G21/00

CPC分类号： G03G21/0005 ,  G03G15/0887

摘要： An image formation apparatus having a cleaning process for removing defective toner from the developing unit during a non-image formation rotation of the photoreceptor drum. The image formation apparatus includes a reverse polarity charger for charging the photoreceptor drum to an opposite polarity from the polarity that is used for forming an electrostatic latent image. The reverse polarity charger allows defective toner to be removed from the surface of the photoreceptor during a warming-up process of the apparatus or after a predetermined number of image forming processes have been performed.

摘要翻译： 一种图像形成装置，具有用于在感光鼓的非图像形成旋转期间从显影单元去除不良墨粉的清洁过程。 图像形成装置包括反向极性充电器，用于将感光鼓的极性与用于形成静电潜像的极性相反。 反极性充电器允许在设备的预热过程中或者在执行了预定数量的图像形成处理之后，从感光体的表面去除缺陷调色剂。

公开(公告)号：US4935777A

公开(公告)日：1990-06-19

申请号：US221666

申请日：1988-07-20

申请人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

发明人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

IPC分类号： G03G21/00 ,  G03G21/08

CPC分类号： G03G21/08 ,  G03G21/0094

摘要： Before a photoreceptor for an electrophotographic image forming apparatus is uniformly charged at the beginning of a process for forming a latent electrostatic image thereon, the photoreceptor is exposed to charge-removing light for stabilizing the surface potential such that a high-quality image can be obtained. The level of exposure is modified in view of the fatigue and recovery characteristics of the photoreceptor. During a continuous operation of the photoreceptor, the level is logarithmically reduced. When the photoreceptor is started again after a rest period, the initial level of exposure is adjusted by logarithmically increasing it according to the length of the rest period as well as in view of the level of exposure prior to the rest period.

摘要翻译： 在电子照相成像装置的感光体在其上形成静电潜像的处理开始时被均匀充电时，感光体暴露于电荷去除光中，以稳定表面电位，使得可以获得高质量的图像 。 考虑到感光体的疲劳和恢复特性，曝光水平被改变。 在感光体的连续操作期间，水平对数减小。 当在休息期后再次开始感光器时，根据休息期的长度以及考虑到休息期之前的暴露水平，通过对数地增加暴露的初始水平进行调整。

公开(公告)号：US5923922A

公开(公告)日：1999-07-13

申请号：US657870

申请日：1996-05-31

申请人： Toshihisa Ishida ,  Katuaki Sumida ,  Kanshiro Okamoto ,  Jitsuo Masuda ,  Masato Asanuma ,  Katsushi Inoue ,  Toshiaki Ino ,  Hideji Saiko ,  Yasuo Kitabatake

发明人： Toshihisa Ishida ,  Katuaki Sumida ,  Kanshiro Okamoto ,  Jitsuo Masuda ,  Masato Asanuma ,  Katsushi Inoue ,  Toshiaki Ino ,  Hideji Saiko ,  Yasuo Kitabatake

IPC分类号： G03G15/00 ,  G03G15/06 ,  G03G15/08 ,  G03G21/00 ,  G03G21/20

CPC分类号： G03G15/065 ,  G03G15/0822 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0889 ,  G03G21/00 ,  G03G21/203 ,  G03G21/206

摘要： An image forming apparatus has a developer container, a development device for developing a latent image formed on a surface of a photoreceptor drum by supplying toner to the latent image, and an agitation roller for supplying toner to the development device and agitating the toner in the developer container. The development device and the agitation roller are installed in the developer container. Moreover, the image forming apparatus includes a flying toner detecting device for detecting an amount of toner flying from the development device, and a control unit for controlling various developer operations such as the toner related agitating operation of the agitation roller, toner supply amount, etc. in response to a result of a detection performed by the flying toner detecting device. This structure prevents the toner from flying from the development device.

摘要翻译： 图像形成装置具有显影剂容器，用于通过向潜像供应调色剂来显影形成在感光鼓的表面上的潜像的显影装置，以及用于向显影装置供应调色剂并搅拌调色剂的搅拌辊 开发者容器 显影装置和搅拌辊安装在显影剂容器中。 此外，图像形成装置包括用于检测从显影装置飞出的调色剂量的飞行调色剂检测装置和用于控制各种显影剂操作的控制单元，例如调色剂相关的搅拌辊的搅拌操作，调色剂供应量等 响应由飞行调色剂检测装置进行的检测的结果。 这种结构防止调色剂从显影装置飞出。

公开(公告)号：US4970557A

公开(公告)日：1990-11-13

申请号：US237868

申请日：1988-08-29

申请人： Jitsuo Masuda ,  Hideaki Hagihara ,  Hiroshi Kinashi ,  Junji Morimoto ,  Ken Yamagishi ,  Teruhiko Noguchi ,  Itaru Kawabata

发明人： Jitsuo Masuda ,  Hideaki Hagihara ,  Hiroshi Kinashi ,  Junji Morimoto ,  Ken Yamagishi ,  Teruhiko Noguchi ,  Itaru Kawabata

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G15/08

CPC分类号： G03G15/5037 ,  G03G15/0266 ,  G03G15/08 ,  G03G15/0822 ,  G03G2215/00075

摘要： Electrophotographic apparatus according to this invention are controlled in different ways such that quality of produced images is not affected by deterioration of the developing agent or the condition of the photoreceptor. A timer may be provided to detect the duration of a rest period to adjust the speed of development accordingly as well as by the number of copies produced. Similar control may be effected by measuring the surface voltage of the photoreceptor by a voltage detector and by adjusting the output level of the principal charger used for uniformly charging the photoreceptor prior to a development process.

摘要翻译： 根据本发明的电子照相设备以不同的方式进行控制，使得产生的图像的质量不受显影剂的劣化或感光体的状况的影响。 可以提供定时器来检测休息期的持续时间，以相应地调整发展速度以及产生的副本数量。 可以通过用电压检测器测量感光体的表面电压，并通过调整用于在显影处理之前均匀地对感光体充电的主充电器的输出电平来实现类似的控制。

公开(公告)号：US07257336B2

公开(公告)日：2007-08-14

申请号：US11033682

申请日：2005-01-13

申请人： Masayasu Narimatsu ,  Masakatsu Hayashi ,  Hiroshi Kawamoto ,  Makoto Uehara ,  Jitsuo Masuda

发明人： Masayasu Narimatsu ,  Masakatsu Hayashi ,  Hiroshi Kawamoto ,  Makoto Uehara ,  Jitsuo Masuda

IPC分类号： G03G15/08

CPC分类号： G03G15/5041 ,  G03G15/0853 ,  G03G2215/00042 ,  G03G2215/0609 ,  G03G2215/0685 ,  G03G2215/085 ,  G03G2215/0888

摘要： In case of a developing density correction based on a test image (patch image) density, normally, the developing density is carried out in a short period of time by correction (γ correction) of a developing bias and a grid voltage (S11). When a correction amount of the γ correction exceeds an ordinary range, the γ correction (S11) and adjustment of toner concentration (magnetic permeability reference value) (S5) are carried out in combination. Furthermore, when the toner concentration is changed, the setting of a correction reference of the γ correction (γ correction TBL) and correction timing of the γ correction are accordingly changed (S6, S7). Therefore, in the developing density correction based on the test image density in the developing device using binary developer, it is possible to carry out the developing density correction, which is carried out in a short time, and whose correction width is wide, while maintaining the accuracy of a developing density adjustment.

摘要翻译： 在基于测试图像（贴片图像）密度的显影浓度校正的情况下，通常，通过显影偏压和电网电压的校正（伽马校正）在短时间内进行显影密度（S11） 。 当伽马校正的校正量超过普通范围时，组合进行伽马校正（S11）和调色剂浓度（磁导率基准值）（S 5）的调整。 此外，当调色剂浓度改变时，相应地改变伽马校正（伽马校正TBL）的校正基准的设置和伽马校正的校正定时（S6，S7）。 因此，在使用二次显影剂的显影装置中基于测试图像浓度的显影浓度校正中，可以执行在短时间内执行的显影浓度校正，并且其校正宽度大，同时保持 发展密度调整的准确性。

公开(公告)号：US06389260B1

公开(公告)日：2002-05-14

申请号：US09714126

申请日：2000-11-17

申请人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga ,  Eiichi Kido ,  Jitsuo Masuda ,  Naoki Fukudo

发明人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga ,  Eiichi Kido ,  Jitsuo Masuda ,  Naoki Fukudo

IPC分类号： G03G1501

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0132

摘要： Toner image forming means for forming toner images having chromatic colors of Y, M and C, respectively, are disposed on one side of an intermediate transfer belt, while disposing toner image forming means for forming a black toner image on the other side of the intermediate transfer belt, alone and on a most downstream side of all the toner image forming means. Further, when a toner image on the intermediate transfer belt includes toner having a reverse polarity, a transfer or developing process is controlled to reduce electrostatic attraction force acting on an image carrier, thus providing a color image forming device having a main body reduced in size and capable of faster image formation of a monochromatic image which is more frequently used, and of efficiently forming a color image by suppressing a back-transfer phenomenon and improving color reproducibility.

摘要翻译： 在中间转印带的一侧分别配置有分别具有Y，M和C的色彩的调色剂图像的调色剂图像形成装置，同时在中间转印带的另一侧上设置用于形成黑色调色剂图像的调色剂图像形成装置 转印带单独且位于所有调色剂图像形成装置的最下游侧。 此外，当中间转印带上的调色剂图像包括具有相反极性的调色剂时，控制转印或显影处理以减少作用在图像载体上的静电吸引力，从而提供具有减小尺寸的主体的彩色图像形成装置 并且能够更快速地形成更频繁使用的单色图像，并且通过抑制反转移现象和提高颜色再现性来有效地形成彩色图像。

公开(公告)号：US5133283A

公开(公告)日：1992-07-28

申请号：US639656

申请日：1991-01-10

申请人： Jitsuo Masuda

发明人： Jitsuo Masuda

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G2215/0609

摘要： A developer unit which includes a developer tank housing a developing roller including a sleeve and a magnet member both rotatable, wherein the magnet member is rotated longer than the sleeve, and wherein the rotating direction of the magnet member is opposite to that occurring when the sleeve and the magnet member rotate simultaneously. This strengthens the stirring force for the developer, thereby enhancing the chargeability of the toner and maintaining a desired image density.

摘要翻译： 一种显影单元，其包括容纳包括套筒和可旋转的磁体构件的显影辊的显影剂罐，其中磁体构件比套筒旋转得更长，并且其中磁体构件的旋转方向与套筒 并且磁体构件同时旋转。 这增强了显影剂的搅拌力，从而提高了调色剂的带电性并保持了所需的图像浓度。