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91. 发明公开

EP0661607A1 Developing apparatus using blank pulse bias 失效
标题翻译： Entwicklungsgerätmit schleierfreier Impulspolarisation。
公开(公告)号：EP0661607A1
公开(公告)日：1995-07-05
申请号：EP94120810.0
申请日：1994-12-28
申请人： CANON KABUSHIKI KAISHA
发明人： Sakemi, Yuji, c/o Canon K. K. , Anemiya, Koji, c/o Canon K. K. , Menjo, Takeshi, c/o Canon K. K. , Inoue, Masahiro, c/o Canon K. K. , Izumizaki, Masami, c/o Canon K.K.
IPC分类号： G03G15/06 , G03G15/09
CPC分类号： G03G15/065 , G03G15/0907
摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member, opposed to the image bearing member, for carrying a developer containing toner; bias voltage applying device for applying a developing bias voltage to the developer carrying member, the bias voltage satisfying:

T1 |V2-V1| ¯ ,
T3 > (133d²/T2|V2-V2|) - 1/2T2

V1 (V): a voltage applying to the toner toward the developer carrying member away from the image bearing member;
T1: a time period of application of the voltage V1;
V2 (V): a voltage applying force to the toner away from the developer carrying member toward the image bearing member;
T2: a time period of application of the voltage V2;
T3 (Ω): a time period of application of a voltage V3 which is (V1+V2)/2 ;
d (m): distance between the image bearing member and the developer carrying member.
摘要翻译：图像形成装置包括用于承载静电图像的图像承载部件; 显影剂承载构件，与图像承载构件相对，用于承载含有调色剂的显影剂; 偏置电压施加装置，用于向显影剂承载构件施加显影偏压，偏压满足：T1 <8.94d / 2ROOT | V2-V1|，T3>（133d2 /T2‖V2-V2‖）-1 / 2T2 V1（V）：施加到朝着显影剂承载构件的调色剂远离图像承载部件的电压; T1：施加电压V1的时间段; V2（V）：向显影剂承载构件朝着图像承载部件向调色剂施加电压; T2：施加电压V2的时间段; T3（OMEGA）：施加（V1 + V2）/ 2的电压V3的时间段; d（m）：图像承载部件和显影剂承载部件之间的距离。

92. 发明授权

EP0411479B1 Method for electrophotographic image formation 失效
标题翻译：一种用于电子照相图像形成方法。
公开(公告)号：EP0411479B1
公开(公告)日：1994-12-07
申请号：EP90114391.7
申请日：1990-07-26
申请人： ISHIHARA SANGYO KAISHA, Ltd.
发明人： Murakami, Hajime , Okada, Mizuho
IPC分类号： G03G15/00 , G03G15/06 , G03G15/09
CPC分类号： G03G15/5037 , G03G15/065

93. 发明公开

EP0563478A3 Image forming apparatus having image transfer electrode contactable to transfer material 失效
标题翻译：具有与传送材料接触的图像传送电极的图像形成装置
公开(公告)号：EP0563478A3
公开(公告)日：1994-05-18
申请号：EP92308816.5
申请日：1992-09-28
申请人： CANON KABUSHIKI KAISHA
发明人： Hoshika, Norihisa, c/o Canon K.K.
IPC分类号： G03G15/02 , G03G15/06 , G03G15/16
CPC分类号： G03G15/1675 , G03G15/0266 , G03G15/065 , G03G21/08 , G03G2215/1652
摘要： An image forming apparatus includes an image bearing member for bearing a toner image, movable along an endless path; an original supporting platen for supporting an original; an illumination source for illuminating an original on the supporting platen; an image forming device including a charger (10), an exposure optical system, including a reciprocable part, for directing a light image of the original on the supporting platen, a developing device (51) and an image transfer device (4), wherein the reciprocable part moves in a first direction, during an image formation, in which the light image is directed to the image bearing member for image formation thereon and in a second direction, during non-image-formation, for returning the part; wherein the illumination source emits light both during the image formation and during the non-image-formation to direct the light image to the image bearing member, and wherein a developing bias voltage (E d ) in the developing device is switched depending on whether the apparatus is in the image formation or in the non-image-formation so that an image formed on the image bearing member is not developed by the developing device (51) during the non-image-formation.

94. 发明授权

EP0495894B1 AN APPARATUS AND METHOD FOR MANUFACTURING A SCREEN ASSEMBLY FOR A CRT UTILIZING A GRID-DEVELOPING ELECTRODE 失效
标题翻译：设备和制造用于阴极射线使用的栅电极的发光扩散器。
公开(公告)号：EP0495894B1
公开(公告)日：1994-02-02
申请号：EP90915927.9
申请日：1990-09-18
申请人： RCA Thomson Licensing Corporation
发明人： DATTA, Pabitra , McCOY, Randall, Eugene , FRIEL, Ronald, Norman , van RAALTE, John , STEWART, Wilber, Clarence
IPC分类号： H01J9/227
CPC分类号： H01J9/225 , G03G15/065 , G03G15/08 , H01J9/2276
摘要： An apparatus for electrophotographically manufacturing a luminescent screen assembly on a substrate (18), for use within a CRT includes a developer for developing a photoconductive layer (34), having a latent image thereon, with dry-powdered, triboelectrically-charged screen structure materials (48, 48'). The photoconductive layer (34) overlies a conductive layer (32) in contact with the substrate (18). A grid-developing electrode (44) is located at a distance from the photoconductive layer that is large relative to the smallest dimension of the latent image. The electrode is biased with a suitable potential, to influence the deposition of the charged screen structure materials onto the latent image on the photoconductive layer. A method for electrophotographically manufacturing the screen assembly utilizing the grid-developing electrode is also disclosed.

95. 发明公开

EP0536050A2 Printer with print density switching means 失效
标题翻译：带打印浓度切换装置的打印机
公开(公告)号：EP0536050A2
公开(公告)日：1993-04-07
申请号：EP92402686.7
申请日：1992-10-02
申请人： FUJITSU LIMITED
发明人： Ohba, Hiroki , Tonomoto, Yoshihiro, c/o FUJITSU LIMITED , Yanagita, Kiyohisa, c/o FUJITSU LIMITED , Houki, Yoji, c/o FUJITSU LIMITED , Akuta, Tomokazu, c/o FUJITSU LIMITED , Komuro, Akihiro, c/o FUJITSU LIMITED
IPC分类号： G03G15/00 , G03G15/04 , G03G15/08
CPC分类号： B41J2/5056 , B41J2/471 , G03G15/065 , G03G15/0849 , G03G15/0853 , G03G15/50 , G03G15/5033 , G03G2215/00042 , G06K15/00 , G06K15/12 , G06K2215/0074
摘要： The printer is capable of switching between a normal mode and an economy mode by acting on the print density and makes it possible to automatically determine the optimum print density according to the normal mode with serious consideration given to the print quality and the economy mode with serious consideration given to operating costs, thereby decreasing the print consumables. The print mechanism section 1 is controlled by a print controlling section 2 that selects either the print density in normal mode or the print density in economy mode according to the normal/economy instructions and controls the print density of said print mechanism section 1 to the selected print density.
摘要翻译：通过对打印浓度起作用，打印机能够在正常模式和经济模式之间进行切换，并且能够根据正常模式自动确定最佳打印浓度，并严重考虑打印质量和经济模式考虑到运营成本，从而减少打印耗材。打印机构部分1由打印控制部分2控制，打印控制部分2根据正常/经济指令选择正常模式下的打印浓度或经济模式下的打印浓度，并且控制所述打印机构部分1的打印浓度印刷密度。

96. 发明公开

EP0488151A3 Image forming apparatus 失效
公开(公告)号：EP0488151A3
公开(公告)日：1992-06-24
申请号：EP91120156.4
申请日：1991-11-26
申请人： KYOCERA CORPORATION
发明人： Nishiguchi, Yasuo, c/o Kyocera Corporation , Mukataka, Hisashi, c/o Kyocera Corporation , Murano, Shunji , Tone, Masayuki, c/o Kyocera Corporation
IPC分类号： G03G15/04
CPC分类号： G03G15/065 , G03G15/0241 , G03G15/24 , G03G15/344 , G03G2215/022 , G03G2215/0497 , G03G2217/0091
摘要： This invention relates to an image forming apparatus based on the electrophotographic process, more particularly to an image forming apparatus having an exposure member 2 inside of a photoreceptor member 1, which develops upon receiving light and being exposed by the exposure member. The image forming apparatus features to include the exposure member 2 having a plurality of LED elements 21a arrayed along a main scanning line of the photoreceptor member 1 which is exposed by the LED elements 21a in a time sharing manner by n bits unit, and the photoreceptor means 1 having a photoconductive layer 1c formed of amorphous silicon compounds for receiving the light. The photoreceptor member 1 is electrified through brushing contact of the developer carried by the toner support member 33, and wherein the exposure portion of the exposure means 2 is located in the developer brushing contact region (10).

97. 发明公开

EP0468503A2 Image forming apparatus 失效
标题翻译： Bilderzeugungsgerät。
公开(公告)号：EP0468503A2
公开(公告)日：1992-01-29
申请号：EP91112515.1
申请日：1991-07-25
申请人： CANON KABUSHIKI KAISHA
发明人： Takeuchi, Makoto, c/o CANON KABUSHIKI KAISHA , Noguchi, Akio, c/o CANON KABUSHIKI KAISHA , Ushio, Yukihide, c/o CANON KABUSHIKI KAISHA , Matsuo, Shimpei, c/o CANON KABUSHIKI KAISHA , Uchiyama, Seiji, c/o CANON KABUSHIKI KAISHA , Yamada, Kazuro, c/o CANON KABUSHIKI KAISHA , Serizawa, Yoji, c/o CANON KABUSHIKI KAISHA
IPC分类号： H04N1/40
CPC分类号： G03G15/065 , G06K15/1295
摘要： An image forming apparatus which can adjust a density comprises: a first input device to input image information; a second input device to input the kind of image information; an image forming circuit such as a printer form an image on the basis of image information which can vary an image forming density; and a density adjusting circuit to adjust the image forming density of the image forming circuit in accordance with the kind of input image information. The second input device inputs a signal indicative of whether the input image information indicates a text image or a graphics image or whether it denotes Japanese or European/English language. The second input device inputs a signal indicative of the kind of font included in the input image information or a signal indicative of a resolution of an output image which is formed by the printer.
摘要翻译：可以调节浓度的图像形成装置包括：输入图像信息的第一输入装置; 输入图像信息种类的第二输入装置; 诸如打印机的图像形成电路基于可以改变图像形成密度的图像信息形成图像; 以及浓度调整电路，根据输入图像信息的种类来调整图像形成电路的图像形成密度。第二输入装置输入指示输入图像信息是指示文本图像还是图形图像的信号，或者是否表示日语或欧洲/英国语言。第二输入装置输入指示包括在输入图像信息中的字体种类的信号或指示由打印机形成的输出图像的分辨率的信号。

98. 发明公开

EP0404561A2 Electrophotographic developing apparatus 失效
标题翻译：电子照相机（Entwicklungsgerät）
公开(公告)号：EP0404561A2
公开(公告)日：1990-12-27
申请号：EP90306778.3
申请日：1990-06-21
申请人： FUJITSU LIMITED
发明人： Nishio, Yukio , Kera, Hiroshi , Tonomoto, Yoshihiro , Hirose, Kazunori
IPC分类号： G03G15/08 , G03G15/06
CPC分类号： G03G15/065 , G03G15/0806 , G03G15/0812 , G03G2215/0614 , G03G2215/0636
摘要： Image developing apparatus, for developing a latent electrostatic image, includes a container (12), for holding a supply of toner particles (D), and a developing roller (18) made of an electrically-conductive elastomeric material and supported for rotation in contact with toner particles in the container so as to entrain a layer of such particles and carry them to a location at which the roller engages a surface bearing such an image. A blade member (22) is pressed against the developing roller for regulating the thickness of the said layer, and respective bias voltages are applied to the developing roller and to the blade member for ensuring that the toner particles of the said layer are electrically charged in a desired manner and/or for preventing electrostatic adhesion of such particles to the blade member.
Danger of localised damage due to electrical current flow between the blade member and the developing roller, prior to attainment of its normal speed of rotation, is reduced by delaying application of the bias voltages for a preset period of time after initiation of the said rotation.
When such rotation is to be stopped, by termination of a drive signal (DS) maintaining that rotation, the application of the bias voltage to the blade member is terminated at a first instant. The drive signal is then terminated at a second instant, a predetermined short period of time after the said first instant, the application of the bias voltage to the developing roller being maintained until the said second instant, thereby to encourage separation of toner particles from the roller during that predetermined short period.
摘要翻译：用于显影静电潜像的图像显影装置包括用于保持调色剂颗粒（D）供应的容器（12）和由导电弹性体材料制成并被支撑以接触旋转的显影辊（18）在容器中具有调色剂颗粒，以便夹带一层这样的颗粒并将它们带到辊子与承载这种图像的表面接合的位置。叶片构件（22）被压靠在显影辊上用于调节所述层的厚度，并且将相应的偏置电压施加到显影辊和叶片构件，以确保所述层的调色剂颗粒带电期望的方式和/或用于防止这些颗粒对叶片构件的静电附着。在达到其正常转速之前，由于叶片构件和显影辊之间的电流流动导致的局部损坏的危险通过在所述旋转开始之后延迟施加偏置电压达预设的时间来减少。当这样的旋转停止时，通过维持该旋转的驱动信号（DS）的终止，施加到叶片构件的偏置电压在第一时刻终止。然后，驱动信号在第二时刻终止，在所述第一时刻之后的预定的短时间段内，向显影辊施加偏置电压直到所述第二时刻，从而促使调色剂颗粒从在预定的短时间内滚动。

99. 发明公开

EP0289565A1 DYNAMIC FEEDFORWARD PROCESS CONTROL FOR ELECTROGRAPHIC MACHINES 失效
标题翻译：动态反馈的电气设备在图形控制过程。
公开(公告)号：EP0289565A1
公开(公告)日：1988-11-09
申请号：EP87907475.0
申请日：1987-10-23
申请人： EASTMAN KODAK COMPANY (a New Jersey corporation)
发明人： JAMZADEH, Fereidoon, S. , STOUDT, Michael, D.
IPC分类号： G03G15
CPC分类号： G03G15/065 , G03G15/5037 , G03G2215/00054
摘要： Appareil permettant d'effectuer de multiples reproductions à partir d'un original, toutes ces reproductions du même original étant de qualité pratiquement identique. Une machine électrophotographique charge pratiquement uniformément un organe d'enregistrement électrophotographique à une tension initiale prédéterminée et expose au niveau de l'image l'organe d'enregistrement chargé, à un niveau d'exposition nominal afin de produire une image de charge latente. Le niveau de tension initiale et le niveau d'exposition sont des paramètres de commande de processus de la machine, qui comprennent également une électrode polarisée pour commander le dépôt de toner sur l'image de charge latente. Sont produits et mémorisés des signaux ayant des valeurs caractéristiques (1) du niveau d'au moins un des paramètres et (2) du niveau de tension de polarisation qui sont liés à une qualité de reproduction désirée d'un original. On produit un signal de comparaison en prenant les valeurs des signaux des paramètres détectés associés aux images de charge latente des reproductions successives d'un original et en les comparant aux valeurs de signaux mémorisés relatives aux images de charge latente correspondantes du même original. Le niveau de tension de polarisation lié à l'image de charge latente varie en réaction au signal de comparaison, produisant ainsi une image développée et ayant pratiquement la même qualité d'impression que celle produite par les valeurs de signaux mémorisés.

100. 发明公开

EP0165866A3 Electrophotographic recorder controller 失效
标题翻译：电子记录仪控制器
公开(公告)号：EP0165866A3
公开(公告)日：1987-06-03
申请号：EP85401181
申请日：1985-06-14
申请人： SCHLUMBERGER LIMITED , SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER
发明人： Elliott, Jennings W.
IPC分类号： G03G15/00
CPC分类号： G03G15/2003 , G03G15/0266 , G03G15/065 , G03G15/101
摘要： A method and apparatus for improving the quality of recordings from electrophotographic recording apparatuses by calculating the surface charge remaining on the recording medium adjacent the development electrode and adjusting the voltage of the development electrode to match the remaining surface charge; controlling the corona charger to operate at two levels, a first level for charging the surface of the recording medium and a second lower level at which neither light nor ions are emitted; controlling the fuser lamp in response to changes in ambient temperature, line voltage. and the rate of recording medium advancement to obtain optimum toner fusion without damage to the recording medium; deactivating the toner pump and air knife blower if the recording medium has not moved for a predetermined period of time. and further including a development electrode design for maintaining a uniform layer of toner adjacent the recording medium.

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