公开(公告)号：US20240295836A1

公开(公告)日：2024-09-05

申请号：US18572770

申请日：2021-07-09

申请人： Hewlett-Packard Development Company, L.P.

发明人： Jeffrey Harold Luke ,  Justin D. Pettingill ,  Gabriel Scott McDaniel

IPC分类号： G03G15/06 ,  G03G15/00 ,  G03G15/02 ,  G03G15/045 ,  G03G15/08 ,  G03G21/08

CPC分类号： G03G15/065 ,  G03G15/0216 ,  G03G15/0266 ,  G03G15/0291 ,  G03G15/045 ,  G03G15/0812 ,  G03G15/80 ,  G03G21/08

摘要： An apparatus includes a developer to receive a toner, and an actuator moveable between different positions. An electrical switch is responsive to an input stimulus from the actuator to control a voltage that enables or disrupts a transfer of the toner from the developer to a photoreceptor, where the electrical switch when in a first state sets the voltage at a first level to enable the transfer of the toner from the developer to the photoreceptor, and the electrical switch when in a second state sets the voltage at a second level to disrupt the transfer of the toner from the developer to the photoreceptor.

公开(公告)号：US20190113869A1

公开(公告)日：2019-04-18

申请号：US16217106

申请日：2018-12-12

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

发明人： Ken Iguchi

IPC分类号： G03G15/20 ,  G03G15/18 ,  G03G15/04

CPC分类号： G03G15/2053 ,  G03G15/04036 ,  G03G15/045 ,  G03G15/18 ,  G03G15/2039 ,  G03G15/6585

摘要： In accordance with an embodiment, an image forming apparatus encompasses a heat roller, a lamp, a use amount acquisition section, a switching controller and a cycle controller. The heat roller heats a sheet printed with a toner image. The lamp heats the heat roller. The use amount acquisition section acquires a use amount of the lamp. The switching controller repeats a processing from a moment at which the lamp is charged until the lamp is charged next after the lamp is not charged in a predetermined control cycle. The cycle controller sets the cycle based on the use amount.

公开(公告)号：US09915912B2

公开(公告)日：2018-03-13

申请号：US15260019

申请日：2016-09-08

申请人： FUJI XEROX CO., LTD.

发明人： Mitsuhiro Mori ,  Masato Katsukawa

IPC分类号： G03G21/00 ,  G03G21/08 ,  G03G15/047 ,  G03G15/045 ,  G03G13/045 ,  G03G15/00

CPC分类号： G03G21/08 ,  G03G13/045 ,  G03G15/045 ,  G03G15/047 ,  G03G15/5037

摘要： A discharging light quantity adjusting device includes a potential measurement controller that performs: a process of causing a first toner image forming process to charge an image holding member to a first potential and an electrometer to measure an electrostatic potential on the image holding member to obtain a first value, a process of causing a second toner image forming process to charge the image holding member to a second potential and removing a toner image formed by the second toner image forming process, and a process of causing a third toner image forming process to charge the image holding member to a third potential, and causing the electrometer to measure an electrostatic potential on the image holding member to obtain a second value; and a light quantity adjusting unit that adjusts a quantity of a discharging light based on the first and second values.

公开(公告)号：US20180004116A1

公开(公告)日：2018-01-04

申请号：US15625954

申请日：2017-06-16

申请人： CANON KABUSHIKI KAISHA

发明人： Hidenori Kanazawa

IPC分类号： G03G15/043

CPC分类号： G03G15/043 ,  G03G15/0415 ,  G03G15/045 ,  G03G15/047

摘要： In an image forming apparatus, a correction control unit of an image clock control unit controls the frequency of an image clock, so that the partial magnification of each position in an image region in which an image is formed is corrected in a main scanning direction that is a direction in which a laser beam scans a scanning region of one line. When controlling the frequency of the image clock, the correction control unit makes the change rate (the slope) that is a change amount of the image clock per unit time, be smaller in a non-image region being a region other than the image region, than the change rate in the image region.

公开(公告)号：US09817330B2

公开(公告)日：2017-11-14

申请号：US14730428

申请日：2015-06-04

申请人： Hiroto Tachibana ,  Hiroyuki Suhara ,  Masato Iio

发明人： Hiroto Tachibana ,  Hiroyuki Suhara ,  Masato Iio

IPC分类号： G03G15/04 ,  G03G15/043 ,  G03G15/045 ,  G03G13/045 ,  B41J2/435

CPC分类号： G03G15/043 ,  B41J2/435 ,  G03G13/045 ,  G03G15/04027 ,  G03G15/045

摘要： An image forming apparatus forms an image by exposing an image bearer on the basis of image data including at least one predetermined pattern. The image forming apparatus includes a processing device that sets an exposure amount of a plurality of exposure pixels. The predetermined pattern is constituted by the plurality of exposure pixels, and a peripheral region of the predetermined pattern in the image data is constituted by a plurality of non-exposure pixels. The processing device sets an exposure amount of an exposure pixel in a specific region that is adjacent to a boundary between the predetermined pattern and the peripheral region and is constituted by at least one exposure pixel in the predetermined pattern, and an exposure amount of an exposure pixel in a region other than the specific region in the predetermined pattern to values different from each other.

公开(公告)号：US06473107B2

公开(公告)日：2002-10-29

申请号：US09968505

申请日：2001-10-02

申请人： Yoshiro Koga ,  Shinichi Kamoshida ,  Kaneo Yoda ,  Nobumasa Abe ,  Yujiro Nomura

发明人： Yoshiro Koga ,  Shinichi Kamoshida ,  Kaneo Yoda ,  Nobumasa Abe ,  Yujiro Nomura

IPC分类号： B41J241

CPC分类号： G03G15/045 ,  B41J2/395 ,  G03G15/321 ,  G03G21/0005 ,  G03G21/06 ,  G03G2215/0119 ,  G03G2215/017 ,  G03G2221/0015

摘要： In an image forming apparatus comprising a latent image carrier and a writing means having a plurality of writing electrodes which are aligned in the axial direction of the latent image carrier and arranged in contact with or proximity to the latent image carrier to form an electrostatic latent image on the latent image carrier, the contact width of the writing means relative to the latent image carrier is set to be smaller than the contact width of any cleaning means, the width of a toner carrying portion of a developing means confronting the latent image carrier, the width of a transferring means, and the width of a charge removing portion of a charge removing means. In addition, the width of the writing means is set to be smaller than the width of the latent image carrier.

摘要翻译： 在包括潜像载体和书写装置的图像形成装置中，所述写入装置具有多个写入电极，所述多个写入电极沿着所述潜像载体的轴向排列并且与所述潜像载体接触或接近以形成静电潜像 在潜像载体上，书写装置相对于潜像载体的接触宽度被设定为小于任何清洁装置的接触宽度，与潜像载体相对的显影装置的调色剂承载部分的宽度， 转印装置的宽度和电荷去除装置的电荷去除部分的宽度。 此外，写入装置的宽度被设定为小于潜像载体的宽度。

公开(公告)号：US4951092A

公开(公告)日：1990-08-21

申请号：US408449

申请日：1989-09-15

申请人： Masazumi Ito

发明人： Masazumi Ito

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/045 ,  G03G15/08

CPC分类号： G03G15/0896 ,  G03G15/01 ,  G03G15/04018 ,  G03G15/045

摘要： The present invention relates to a copying machine having a color developing function with a developing unit, outline image forming function with a outline image forming unit and a character writing function with a character writing unit. One of these units is selectively mountable on a mounting portion provided between the charging means and developing means of the copying machine.

摘要翻译： 本发明涉及具有显影单元的彩色显影功能的复印机，具有轮廓图像形成单元的轮廓图像形成功能和具有字符写入单元的字符写入功能。 这些单元中的一个可选择性地安装在设置在复印机的充电装置和显影装置之间的安装部分上。

公开(公告)号：US4862217A

公开(公告)日：1989-08-29

申请号：US254996

申请日：1988-10-07

申请人： Matthew J. Russel

发明人： Matthew J. Russel

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/045 ,  H04N1/38 ,  H04N1/62

CPC分类号： G03G15/507 ,  G03G15/01 ,  G03G15/045 ,  H04N1/38 ,  H04N1/62

摘要： Apparatus and method for producing color-accented or otherwise edited reproductions of original documents with high productivity. Information of originals to be reproduced with, for example, color-accenting are highlighted on the originals with a marker pen or encircled with the highlight. The highlighted originals are serially passed during a copy run over an image scanner than is sensitive to the highlighted portions. The locations of the highlighted portions for each original are detected and stored in a bit map. In one embodiment an original is imaged onto two image frames of an electrostatically charged photoconductor. The photoconductor not being capable of distinguishing highlighted areas from background reproduces the electrostatic images through an optical exposure as if no highlighting is present. A selective erase element is provided to erase from one frame, areas on the original that were highlighted and to erase from the other frame, areas on the original that were not highlighted. The image frames are developed, each with a differently colored toner, and the developed areas transferred in register to a copy sheet to provide a reproduction with color accenting. In another embodiment the information is electronically scanned onto the photoconductor using an LED or laser light source and the appropriate image frames exposed in accordance with the highlighting on the documents.Highlighting of an original may also be used to indicate areas to be selectively screened, filled with a screen tint, areas to be deleted, or areas to be repositioned.

摘要翻译： 用于以高生产率生产彩色重音或以其他方式编辑的原始文件的装置和方法。 用标记笔在原稿上突出显示用例如颜色重音的原件的信息，或者用高亮显示环绕。 突出显示的原稿在图像扫描仪的复印运行期间顺序传递，而不是对突出显示的部分敏感。 每个原件的突出部分的位置被检测并存储在位图中。 在一个实施例中，原件被成像到静电充电的光电导体的两个图像帧上。 不能将突出显示区域与背景区分开的感光体通过光学曝光再现静电图像，就好像不存在突出显示一样。 提供了一个选择性擦除元素，用于从一个帧擦除原稿上突出显示的区域，并从另一个帧擦除原始图像上未突出显示的区域。 图像帧被开发，每个具有不同颜色的调色剂，并且显影区域被转移到寄存器中以提供具有颜色重现的再现。 在另一个实施例中，使用LED或激光光源将信息电子地扫描到光电导体上，并且根据文档上的突出显示曝光的适当的图像帧。 原稿的突出显示也可用于指示要选择性屏蔽的区域，填充屏幕色调，要删除的区域或要重新定位的区域。

公开(公告)号：US4794421A

公开(公告)日：1988-12-27

申请号：US809550

申请日：1985-12-16

申请人： Michael D. Stoudt ,  Michael Mosehauer ,  Eric K. Zeise ,  Jerome G. Spitzner, deceased ,  David Q. McDowell ,  George N. Tsilibes

发明人： Michael D. Stoudt ,  Michael Mosehauer ,  Eric K. Zeise ,  Jerome G. Spitzner, deceased ,  David Q. McDowell ,  George N. Tsilibes

IPC分类号： G03B27/62 ,  G03G13/01 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/045 ,  G03G15/047 ,  G03G15/36 ,  G03G21/00 ,  G06F3/043

CPC分类号： G03G15/0115 ,  G03G15/01 ,  G03G15/04018 ,  G03G15/045 ,  G03G15/605

摘要： Apparatus and method for electrophotographically producing high quality reproductions which contain different content types. Photoconductor image sectors are subjected to separate optical exposures selected for (1) good tone-scale reproduction of continuous-tone image portions and (2) high-contrast reproduction of line-type image portions. Photoconductor background area, which border continuous-tone image portions, are discharged to a level below the system's development level. Color line-art from a black and white original is also provided for in a color-copier by exposing a separate original containing a swatch of the color to be reproduced on the same image frames exposed to the image of the line-art. A digitizing tablet is used in combination with a selective erase means to provide selective screening and/or spot color effects. The digitizing tablet may be incorporated to use the exposure platen and may be of the sonic type or other types not employing grid lines visible to the photoconductor.

摘要翻译： 用于电子照相生产包含不同内容类型的高质量复制品的装置和方法。 光电导体图像扇区经受为（1）连续色调图像部分的良好色阶级再现选择的单独的光学曝光和（2）线型图像部分的高对比度再现。 接触连续色调图像部分的感光体背景区域被排出到低于系统开发水平的水平。 通过在暴露于线条图像的相同图像框上暴露包含要再现的颜色样本的单独原件，还可以在彩色复印机中提供来自黑白原色的色彩线条。 数字化平板电脑与选择性擦除装置组合使用以提供选择性筛选和/或专色效果。 数字化图形输入板可以并入以使用曝光压板，并且可以是声波型或不使用光电导体可见的栅格线的其它类型。

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。