公开(公告)号：US4897331A

公开(公告)日：1990-01-30

申请号：US201215

申请日：1988-06-02

申请人： Naoki Toyoshi ,  Hiroshi Okamoto ,  Kenji Tabuchi ,  Kaoru Takebe ,  Tomoaki Yokoyama

发明人： Naoki Toyoshi ,  Hiroshi Okamoto ,  Kenji Tabuchi ,  Kaoru Takebe ,  Tomoaki Yokoyama

IPC分类号： G03G13/08 ,  G03G13/22

CPC分类号： G03G13/22 ,  G03G13/08

摘要： By utilizing an electrophotographic image forming process, a reversal image can be obtained in the following manner:charging a photosensitive member;forming an electrostatic latent image in a charged surface of the photosensitive member;developing the electrostatic latent image formed on the photosensitive member by using white toner;charging the photosensitive member again;developing the surface of the photosensitive member by using other toner different in color from the white toner; andtransferring the toner image formed on the photosensitive member onto a paper sheet.

摘要翻译： 通过利用电子照相图像形成处理，可以以如下方式获得反转图像：对感光构件充电; 在感光构件的带电表面中形成静电潜像; 通过使用白色调色剂显影形成在感光构件上的静电潜像; 再次对感光部件充电; 通过使用与白色调色剂不同颜色的其它调色剂来显影感光构件的表面; 以及将形成在感光构件上的调色剂图像转印到纸张上。

公开(公告)号：US4891287A

公开(公告)日：1990-01-02

申请号：US201195

申请日：1988-06-02

申请人： Naoki Toyoshi ,  Hiroshi Okamoto ,  Kenji Tabuchi ,  Kaoru Takebe ,  Tomoaki Yokoyama

发明人： Naoki Toyoshi ,  Hiroshi Okamoto ,  Kenji Tabuchi ,  Kaoru Takebe ,  Tomoaki Yokoyama

IPC分类号： G03G13/22 ,  G03G15/04 ,  G03G15/22 ,  G03G15/36

CPC分类号： G03G15/36 ,  G03G15/04018

摘要： An image editing method utilizing an electrophotographic process, which method includes a first charging step of charging a photosensitive medium; a step of projecting an image onto the charged photosensitive medium to form an electrostatic latent image; a first developing step of developing the electrostatic latent image into a first powder image by the use of a first toner material having the same polarity as the charged polarity; a first transferring step of transferring the powder image onto a copying paper; a second charging step of again charging the photosensitive medium to a polarity the same as that of the charge established during the first charging step; a step of radiating rays of light to the charged photosensitive medium to remove the electrostatic charge at a specificed area of the photosensitive medium; a second developing step of developing the specified area of the photosensitive medium by the use of a second toner material different in color from the first toner material to form a second powder image; and a second transferring step of transferring the second powder image onto said copying paper so as to cover the first powder image which has been transferred onto the copying paper.

摘要翻译： 一种使用电子照相方法的图像编辑方法，该方法包括对光敏介质充电的第一充电步骤; 将图像投影到带电光敏介质上以形成静电潜像的步骤; 第一显影步骤，通过使用具有与带电极性相同极性的第一调色剂材料将静电潜像显影成第一粉末图像; 将粉末图像转印到复印纸上的第一转印步骤; 第二充电步骤，其将所述感光介质再次充电到与在所述第一充电步骤期间建立的充电相同的极性; 将光线照射到带电的感光介质以去除感光介质的特定区域处的静电荷的步骤; 通过使用与第一调色剂材料不同颜色的第二调色剂材料来显影感光介质的指定区域以形成第二粉末图像的第二显影步骤; 以及第二转印步骤，将第二粉末图像转印到所述复印纸上，以覆盖已经转印到复印纸上的第一粉末图像。

公开(公告)号：US4794062A

公开(公告)日：1988-12-27

申请号：US16716

申请日：1987-02-19

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G13/22 ,  G03G15/04 ,  G03G15/045 ,  G03G13/02 ,  G03G21/00

CPC分类号： G03G15/045 ,  G03G13/22 ,  G03G15/04027 ,  Y10S430/102

摘要： A method for forming an outline of an image. In this method, at first, an electrostatic latent image bearing member is charged and then irradiated to a positive image to form an electrostatic latent image. Thereafter, the irradiated member is re-charged with a scorotron charger while applying a voltage to a grid, the voltage being lower than the surface potential of the image portion of the latent image, being slightly higher than the background potential of the latent image and being of the same polarity as that of the original charging. By this re-charging, the outline portion of the image is given higher potential than the other portion. Then, the outline portion of the image with higher potential is subjected to a normal development by using a toner charged to a polarity opposite to the polarity of the recharged portions.

摘要翻译： 一种用于形成图像的轮廓的方法。 在该方法中，首先，对静电潜像承载部件进行充电，然后照射到正像以形成静电潜像。 此后，将照射的部件用栅极充电器重新充电，同时向栅格施加电压，电压低于潜像的图像部分的表面电位，稍高于潜像的背景电位， 具有与原充电相同的极性。 通过这种再充电，图像的轮廓部分被赋予比其他部分更高的电位。 然后，通过使用充电至与再充电部分的极性相反的极性的调色剂，对具有较高电位的图像的轮廓部分进行正常显影。

公开(公告)号：US4828953A

公开(公告)日：1989-05-09

申请号：US58266

申请日：1987-05-21

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G13/045 ,  G03G13/22

CPC分类号： G03G13/22 ,  G03G13/045

摘要： The present invention relates to a method for forming an outline of an image. By this method, at first, an electrostatic latent image bearing member is charged and then irradiated to a negative image to form an electrostatic latent image. Thereafter, the irradiated member is re-charged with a scorotron charger while applying a voltage to a grid, said voltage being lower than the surface potential of the non-image portion of the latent image, being higher than the potential of the image portion of the latent image and being of the same porality as that of the charging. By this re-charging, in one embodiment, the outline portion of the image has lower potential than the other portion. Then, the outline portion of the image with lower potential is visualized with a reversal development by using a toner charged to a polarity same as the polarity of charging.Or in another embodiment, the outline portion of the image has higher potential than the other portion. Then, the outline portion of the image with high potential is visualized with a normal development by using a toner charged to a polarity opposite to the polarity of charging.

摘要翻译： 本发明涉及一种形成图像轮廓的方法。 通过该方法，首先，对静电潜像承载部件进行充电，然后照射到负像以形成静电潜像。 之后，将照射部件用栅极充电器重新充电，同时施加电压到电网，所述电压低于潜像的非图像部分的表面电位，高于图像部分的电位 潜像，与充电相同。 通过这种再充电，在一个实施例中，图像的轮廓部分具有比其他部分更低的电位。 然后，通过使用充电至与充电极性相同的极性的调色剂，通过反转显影可视化具有较低电位的图像的轮廓部分。 或者在另一个实施例中，图像的轮廓部分具有比其他部分更高的电位。 然后，通过使用以与充电极性相反的极性进行充电的调色剂，通过正常显影，可视化具有高电位的图像的轮廓部分。

公开(公告)号：US4792775A

公开(公告)日：1988-12-20

申请号：US16717

申请日：1987-02-19

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G13/045 ,  G03G13/22 ,  G03G15/00

CPC分类号： G03G13/22 ,  G03G13/045

摘要： A method for forming an outline of an image. By this method, at first, an electrostatic latent image bearing member is charged and then irradiated to form an electrostatic latent image. Thereafter, the irradiated member is re-charged with a scorotron charger while applying a voltage to the scorotron grid, the voltage being slightly lower than the surface potential of the image portion of the latent image, and being substantially higher than the background potential of the latent image and being of the same polarity as that of the charging. By this re-charging, the outline portion of the image is given lower potential than the other portion. Then, the outline portion of the image with the lower potential is developed by a reversal development by using a toner charged to a polarity the same as the polarity of charging of the latent image bearing member.

摘要翻译： 一种用于形成图像的轮廓的方法。 通过该方法，首先，对静电潜像承载部件进行充电，然后照射以形成静电潜像。 此后，将照射部件用灰火焰充电器再次施加电压到栅极栅极，该电压略低于潜像的图像部分的表面电位，并且显着高于该潜像的背景电位 具有与充电相同极性的潜像。 通过这种再充电，图像的轮廓部分被赋予比其他部分更低的电位。 然后，通过使用充电到与潜像承载部件的充电极性相同的极性的调色剂，通过反转显影来显现具有较低电位的图像的轮廓部分。

公开(公告)号：US4912513A

公开(公告)日：1990-03-27

申请号：US214644

申请日：1988-07-01

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0907

摘要： A copying apparatus in which a developing bias voltage to be applied to a developing sleeve by a power source is changed to adjust the density of a reproduced image, while the electric potential difference between the developing sleeve and a toner supply roller is kept constant. As a result, a density of toner on the developing sleeve is kept constant. Therefore, a development is effected under the condition in which the density of the toner is constant, so that the tone of the image of an original document is reproduced in a desired density.

摘要翻译： 在显影套筒和调色剂供给辊之间的电位差保持恒定的同时改变要通过电源施加到显影套筒的显影偏压被改变以调节再现图像的浓度的复印设备。 结果，显影套筒上的调色剂密度保持恒定。 因此，在调色剂的浓度恒定的条件下进行显影，使得原稿的图像的色调以期望的浓度再现。

公开(公告)号：US4785331A

公开(公告)日：1988-11-15

申请号：US117836

申请日：1987-11-09

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G15/00 ,  G03G15/045 ,  G03G15/08 ,  G03G15/06

CPC分类号： G03G15/045 ,  G03G15/0849 ,  G03G15/5041 ,  G03G2215/00042

摘要： An electrophotographic copying apparatus is capable of forming outline images. It comprises a first charging device, an exposing device, a second charging device and a developing device along a moving direction of a photoconductor. A sensor detects an amount of toner adhering to a reference image formed on the surface of the photoconductor. Supply of toner is controlled based on the detected amount. In an outline image forming mode, an amount of toner to be supplied is set to a value smaller than an amount in a standard image forming mode.

摘要翻译： 电子照相复印装置能够形成轮廓图像。 其包括沿着感光体的移动方向的第一充电装置，曝光装置，第二充电装置和显影装置。 传感器检测附着在形成在感光体的表面上的参考图像的调色剂的量。 基于检测到的量控制调色剂的供应。 在轮廓图像形成模式中，要供给的调色剂量被设定为小于标准图像形成模式的量的值。

公开(公告)号：US5012285A

公开(公告)日：1991-04-30

申请号：US191122

申请日：1988-05-06

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama ,  Hiroshi Mizuno ,  Hiroshi Murasaki ,  Akihito Ikegawa ,  Kouichi Etou ,  Shuichi Nakagawa

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama ,  Hiroshi Mizuno ,  Hiroshi Murasaki ,  Akihito Ikegawa ,  Kouichi Etou ,  Shuichi Nakagawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0822 ,  G03G15/0877 ,  G03G15/0896

摘要： A developing apparatus includes a photosensitive drum positioned in confronting relation to a developing sleeve. A toner accommodating tank is provided for supplying toner to the developing sleeve. The toner accommodating tank is divided into a small chamber and a supplementary chamber which are separated from one another by a partition which permits toner to be supplied from the supplementary chamber to the small chamber but which prevents the return of toner from the small chamber to the supplementary. A movable shutter selectively permits and prevents toner from being supplied from the supplementary chamber to the small chamber in accordance with operation of the apparatus.

摘要翻译： 显影装置包括与显影套筒相对定位的感光鼓。 提供调色剂容纳槽，用于向显影套筒供应调色剂。 调色剂容纳箱被分成小室和辅助室，它们通过隔板彼此分开，隔板允许调色剂从辅助室供应到小室，但防止调色剂从小室返回到 补充。 根据设备的操作，活动快门选择性地允许和防止调色剂从辅助室供应到小室。

公开(公告)号：US4835566A

公开(公告)日：1989-05-30

申请号：US119833

申请日：1987-11-12

申请人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Tomoaki Yokoyama

IPC分类号： G03G15/04 ,  G03G15/045

CPC分类号： G03G15/045 ,  G03G15/04027

摘要： A first developing device is provided in a demountable manner near a photoconductor drum of an electrophotographic copying apparatus. There is further provided a second developing device most downstream along a direction of rotation of the photoconductor drum. Developer containing color toner is stored in the first developing device and developer containing black toner is stored in the second developing device. An outline image forming unit for forming an outline image can be installed in place of the first developing device. When the first developing device is installed, development of a copy image is effected by either the first developing device or the second developing device. When the outline image forming unit is installed in place of the first developing device, an outline image formed by the outline image forming unit is developed by the second developing device.

摘要翻译： 在电子照相复印装置的感光鼓附近以可拆卸的方式提供第一显影装置。 还沿着感光鼓的旋转方向设置最下游的第二显影装置。 含有彩色调色剂的显影剂储存在第一显影装置中，含有黑色调色剂的显影剂储存在第二显影装置中。 可以安装用于形成轮廓图像的轮廓图像形成单元来代替第一显影装置。 当安装第一显影装置时，复印图像的显影由第一显影装置或第二显影装置实现。 当安装轮廓图像形成单元代替第一显影装置时，由第二显影装置显影由轮廓图像形成单元形成的轮廓图像。

公开(公告)号：US4821071A

公开(公告)日：1989-04-11

申请号：US46944

申请日：1987-05-07

申请人： Tateki Oka ,  Naoki Toyoshi ,  Hisashi Myochin ,  Tomoaki Yokoyama

发明人： Tateki Oka ,  Naoki Toyoshi ,  Hisashi Myochin ,  Tomoaki Yokoyama

IPC分类号： G03G15/045 ,  G03G15/00

CPC分类号： G03G15/045 ,  G03G2215/083

摘要： An improved electrophotographic copier is proposed which includes a first static charger; an image exposure unit; a second charger provided with a grid; and a developer having a developing electrode, all being arranged around a photosensitive rotatable drum.The second charger is impressed selectively with an a.c. voltage or a d.c. voltage which has an opposite polarity to that applied to the first charger. The voltage impressed to the grid has same polarity with that which is applied to the first charger. The developing agent contained in the developer includes such statically charged toner as having an opposite polarity to that of static latent images formed on the drum surface. The copier operates selectively in standard copy mode or in marginal image outline formation mode. The developing service is nevertheless carried out in the normal manner, thus employing no reverse development mode.

摘要翻译： 提出了一种改进的电子照相复印机，其包括第一静电充电器; 图像曝光单元; 具有电网的第二充电器; 以及具有显影电极的显影剂，全部被布置在光敏可旋转滚筒周围。 第二个充电器选择性地以一个a.c. 电压或直流 电压具有与施加到第一充电器的极性相反的极性。 施加到电网的电压具有与施加到第一充电器相同的极性。 包含在显影剂中的显影剂包括具有与形成在鼓表面上的静电潜像相反的极性的这种静电荷的调色剂。 复印机在标准复印模式或边缘图像轮廓形成模式下选择性地操作。 开发服务仍然以正常的方式进行，因此不采用逆向开发模式。