公开(公告)号：US5740493A

公开(公告)日：1998-04-14

申请号：US554971

申请日：1995-11-13

申请人： Noboru Otaki ,  Kazuyoshi Yoshida ,  Yoshitatsu Okiyama ,  Masato Sakai ,  Hiroyuki Inoue ,  Syuichiro Ogata

发明人： Noboru Otaki ,  Kazuyoshi Yoshida ,  Yoshitatsu Okiyama ,  Masato Sakai ,  Hiroyuki Inoue ,  Syuichiro Ogata

IPC分类号： G03G21/10 ,  G03G15/01 ,  G03G15/02 ,  G03G15/06 ,  G03G15/16 ,  G03G21/00 ,  G03G21/14 ,  G03G15/00

CPC分类号： G03G15/0105 ,  G03G15/1675 ,  G03G21/0064 ,  G03G2215/1623 ,  G03G2215/1661

摘要： An electrophotographic recording apparatus that removes reverse-charged toner that is charged with a polarity opposite to a polarity of a normal-charged toner. The apparatus includes a carrier belt; a transfer roller for carrying the toner adhering to the surface of the photosensitive body toward the carrier belt; a transfer power supply for applying to the transfer roller a first voltage that causes the normal-charged toner adhering to the surface of the photosensitive body to be transferred to the recording medium on the carrier belt, and a second voltage, of opposite polarity to the first voltage, that causes the reverse-charged toner adhering to the surface of the photosensitive body to be transferred to the carrier belt; and a carrier belt cleaning blade. A control circuit controls an operation of the transfer power supply, whereby the first voltage is applied to the transfer roller during an image-forming stage, and the second voltage is applied to the transfer roller during a reverse-charged toner removing stage. For example, the normal-charged toner may have a negative polarity, the reverse-charged toner may have a positive polarity, the first voltage may be positive, and the second voltage may be negative.

摘要翻译： 一种电摄影记录装置，其去除以与正常充电的调色剂的极性相反的极性充电的反向充电的调色剂。 该装置包括一个传送带; 用于将附着在感光体表面上的调色剂传送到传送带的转印辊; 用于向转印辊施加使导致感光体表面附着的正电荷的调色剂被转印到载体带上的记录介质的第一电压的转印电源和与该转印辊相反极性的第二电压 第一电压使得附着在感光体表面上的反向充电调色剂转印到载体带上; 和载体带清洁刮板。 控制电路控制传送电源的操作，由此在成像阶段期间将第一电压施加到转印辊，并且在反向充电的调色剂除去阶段期间将第二电压施加到转印辊。 例如，正常充电的调色剂可以具有负极性，反向充电的调色剂可以具有正极性，第一电压可以是正的，并且第二电压可以是负的。

公开(公告)号：US5983041A

公开(公告)日：1999-11-09

申请号：US886279

申请日：1997-07-01

申请人： Noboru Otaki ,  Yoshitatsu Okiyama ,  Shinichi Murakami ,  Masato Sakai ,  Koji Ida ,  Shuichiro Ogata ,  Hiroyuki Inoue ,  Syuiti Fujikura

发明人： Noboru Otaki ,  Yoshitatsu Okiyama ,  Shinichi Murakami ,  Masato Sakai ,  Koji Ida ,  Shuichiro Ogata ,  Hiroyuki Inoue ,  Syuiti Fujikura

IPC分类号： G03G15/16 ,  G03G15/00

CPC分类号： G03G15/169 ,  G03G15/6591 ,  G03G2215/00497 ,  G03G2215/0119 ,  G03G2215/021

摘要： An image recording apparatus includes a rotating photosensitive drum, a developing unit, a neutralizing device, and a transferring device. An electrostatic latent image is formed on a charged surface of the rotating photosensitive drum, the electrostatic latent image being developed by a developing unit and subsequently transferred by a transferring device to a print medium. The neutralizing device neutralizes the charged surface of the photosensitive drum at the point on the surface disposed downstream of the developing unit and upstream of the transferring device with respect to rotation of the photosensitive drum. A controller controls the neutralizing device according to characteristics of the print medium such as size, material, insulation, and transparency. The neutralizing device may be operated in different modes. For example, the neutralizing device may neutralize an entirety of the charged surface of the photosensitive drum only if the print medium is of a predetermined characteristic, i.e., an insulating sheet such as a transparent OHP sheet or may neutralize only selected parts of the charged surface of the photosensitive drum according to a width of the print medium.

摘要翻译： 图像记录装置包括旋转感光鼓，显影单元，中和装置和转印装置。 在旋转的感光鼓的带电表面上形成静电潜像，静电潜像由显影单元显影，随后由转印装置转印到打印介质上。 中和装置在感光鼓的表面上相对于感光鼓的旋转中和位于显影单元下游的表面上并且在转印装置的上游的位置处中和感光鼓的带电表面。 控制器根据打印介质的特性来控制中和装置，例如尺寸，材料，绝缘和透明度。 中和装置可以以不同的模式操作。 例如，如果打印介质具有预定特性，即绝缘片例如透明OHP片，则中和装置可以中和感光鼓的整个带电表面，或者可以仅中和所充电的表面的所选部分 根据打印介质的宽度。

公开(公告)号：US6112037A

公开(公告)日：2000-08-29

申请号：US372150

申请日：1999-08-11

申请人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

发明人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： A color image forming apparatus includes a carrier belt which runs along a transport path of a recording medium to transport the recording medium. A number of image-forming sections are aligned in the transport path. Each of the plurality of image-forming sections forms a toner image of a corresponding color included in an image signal. A plurality of transfer units are provided, with each being disposed to oppose a corresponding one of the number of image-forming sections. Each of the number of transfer units transferring the toner image of the corresponding color to the recording medium. A fixing unit is provided that fixes the toner image to the recording medium. A controller is provided that detects a number of colors in the image signal. The controller sets one set of speeds from a plurality of different sets of speeds in accordance with the number of colors. Each set of speeds includes a speed of the carrier belt, a speed at which each of the image-forming sections forms a respective toner image of a corresponding color, and a speed of the fixing unit. The speed of the carrier belt, the speed at which each of the image-forming sections forms a respective toner image of a corresponding color, and the speed of the fixing unit of any one respective set of speeds are substantially equal to each other.

摘要翻译： 彩色图像形成装置包括沿着记录介质的传送路径延伸以运送记录介质的传送带。 多个图像形成部分在传送路径中对齐。 多个图像形成部分中的每一个形成包括在图像信号中的相应颜色的调色剂图像。 提供了多个传送单元，每个传送单元被设置成与多个图像形成部分中的对应的一个相对。 多个转印单元中的每一个将相应颜色的调色剂图像转印到记录介质上。 提供了将调色剂图像定影到记录介质上的定影单元。 提供了一种控制器，其检测图像信号中的多个颜色。 控制器根据颜色的数量从多个不同的速度集合设定一组速度。 每组速度包括载体带的速度，每个图像形成部分形成相应颜色的相应调色剂图像的速度和定影单元的速度。 载体带的速度，每个图像形成部分形成相应颜色的相应调色剂图像的速度以及任何一个相应速度的定影单元的速度基本上彼此相等。

公开(公告)号：US5983042A

公开(公告)日：1999-11-09

申请号：US954733

申请日：1997-10-20

申请人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

发明人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： A color image forming apparatus provides the prolonged life of the photosensitive drums, carrier belt, and toner of the respective colors and improves the quality of the printed color image. A carrier belt transports a recording medium placed thereon so that the recording medium passes through a plurality of printing mechanisms which print images of different colors on the recording medium in superposition. Each printing mechanism prints an image of a corresponding color. The printing mechanism is adapted to be moved into its operative position where the photosensitive drum of the printing mechanism is in contact with the carrier belt to print the image on the recording medium, and into its non-operative position where the photosensitive drum of the printing mechanism is not in contact with the carrier belt. A controller receives print data from a host device such as a personal computer and checks each page of the print data to determine whether any one of a predetermined plurality of colors is missing in the page. If a particular color is missing in the print data, then the controller outputs an UP signal to a positioning mechanism for a corresponding printing mechanism. If the color is not missing, then the controller outputs a DOWN signal. The printing mechanism moves a corresponding printing mechanism into the operative position if the UP signal is received from the controller and into its operative position if the DOWN signal is received.

摘要翻译： 彩色图像形成装置提供各种颜色的感光鼓，传送带和调色剂的延长的寿命，并且提高了打印的彩色图像的质量。 载体带传送放置在其上的记录介质，使得记录介质通过多个打印机构，其以叠加的方式在记录介质上打印不同颜色的图像。 每个打印机构打印相应颜色的图像。 打印机构适于移动到其操作位置，其中打印机构的感光鼓与传送带接触以将图像打印在记录介质上，并进入其非打印位置，其中打印的感光鼓 机构不与传送带接触。 控制器从诸如个人计算机的主机设备接收打印数据，并检查打印数据的每一页以确定页面中是否缺少预定多种颜色中的任何一种。 如果在打印数据中缺少特定的颜色，则控制器向对应的打印机构的定位机构输出UP信号。 如果颜色不丢失，则控制器输出DOWN信号。 如果接收到DOWN信号，如果从控制器接收到UP信号并进入其操作位置，则打印机构将相应的打印机构移动到操作位置。

公开(公告)号：US5579092A

公开(公告)日：1996-11-26

申请号：US402234

申请日：1995-03-10

申请人： Minoru Isobe ,  Katsuyuki Ito ,  Kazuyoshi Yoshida ,  Noboru Otaki

发明人： Minoru Isobe ,  Katsuyuki Ito ,  Kazuyoshi Yoshida ,  Noboru Otaki

IPC分类号： B41J13/08 ,  G03G15/01 ,  H04N1/50 ,  G03G21/00

CPC分类号： H04N1/506 ,  G03G15/0194 ,  G03G2215/0103 ,  G03G2215/0119 ,  G03G2215/0161

摘要： A color printer arranges respective printing mechanisms for printing yellow, magenta, cyan, black and rotatably arranges below the respective printing mechanisms a carrier belt attaching a recording medium thereto and moving it. The carrier belt is formed with timing marks, and photointerrupters are provided to read the timing marks. DIP switches are formed for setting positional errors of the respective printing mechanisms. Printing timings of the respective printing mechanisms are controlled on the basis of the read outputs of the timing marks from the photointerrupters and the set values in the DIP switches.

摘要翻译： 彩色打印机布置用于印刷黄色，品红色，青色，黑色的各自的打印机构，并且可旋转地布置在各个打印机构的下方，将附着有记录介质并将其移动的传送带。 载体带形成有定时标记，并且提供光断续器来读取定时标记。 形成DIP开关用于设定各打印机构的位置误差。 基于来自光断续器的定时标记的读取输出和DIP开关中的设定值来控制各个打印机构的打印定时。

公开(公告)号：US5946010A

公开(公告)日：1999-08-31

申请号：US757678

申请日：1996-11-29

申请人： Minoru Isobe ,  Noboru Otaki

发明人： Minoru Isobe ,  Noboru Otaki

IPC分类号： B41J2/21 ,  B41J2/255 ,  B41J2/51 ,  B41J2/525 ,  B41J19/16 ,  G03G21/00 ,  G06F3/05 ,  H04N1/04 ,  H04N1/10 ,  H04N1/12 ,  H04N1/191 ,  H04N1/50 ,  B41J23/00 ,  B41J2/385 ,  H04N1/21 ,  H04N1/23

CPC分类号： H04N1/128 ,  B41J19/16 ,  B41J2/525 ,  H04N1/1911 ,  H04N1/502 ,  H04N1/1017 ,  H04N1/12

摘要： A copier, scanner, or printer has serial scanning and/or printing heads. A uniform relative motion is maintained in a longitudinal direction between the head(s) and the scanning and/or printing media. The head(s) move cyclically back and forth at an acute angle to the longitudinal direction, so that each scanning element and/or each printing element scans or prints a pixel line perpendicular to the longitudinal direction. The acute angle and the rate of relative uniform motion are preferably adjustable according to the width of the area to be scanned or printed. For color copying, scanning, or printing, the scanning and/or printing elements are grouped according to color, and are aligned so that the same pixel lines are scanned or printed in different colors.

摘要翻译： 复印机，扫描仪或打印机具有串行扫描和/或打印头。 在头部和扫描和/或打印介质之间的纵向方向上保持均匀的相对运动。 头部沿着纵向方向以锐角周期性地前后移动，使得每个扫描元件和/或每个打印元件扫描或打印垂直于纵向方向的像素线。 相对均匀运动的锐角和速度优选根据要被扫描或打印的区域的宽度来调节。 对于彩色复印，扫描或打印，扫描和/或打印元件根据颜色进行分组，并对准，以使相同的像素线被扫描或以不同的颜色打印。

公开(公告)号：US4982942A

公开(公告)日：1991-01-08

申请号：US362267

申请日：1989-06-06

申请人： Hiroshi Konishi ,  Matsusaburo Noguchi ,  Joji Tadokoro ,  Noboru Otaki

发明人： Hiroshi Konishi ,  Matsusaburo Noguchi ,  Joji Tadokoro ,  Noboru Otaki

IPC分类号： B41J13/10 ,  B65H3/06 ,  B65H3/52 ,  C08G69/12

CPC分类号： B65H3/5238 ,  B41J13/10 ,  B65H3/0638 ,  C08G69/12

摘要： A sheet feed mechanism for feeding sheets one at a time, comprising a hopper loaded with a stack of sheets, a feed roller disposed near the outlet of the hopper, and a resilient tongue held in resilient contact with the central section of the feed roller. The central section of the feed roller is provided with an alternate circumferential arrangement of low friction portions and high friction portions. The friction coefficients between the sheet and the low friction portions is smaller than that between the sheet and the tongue, and the friction coefficient between the sheet and the high friction portions is greater than that between the sheet and the tongue.

公开(公告)号：US06078346A

公开(公告)日：2000-06-20

申请号：US964886

申请日：1997-11-05

申请人： Minoru Isobe ,  Noboru Otaki

发明人： Minoru Isobe ,  Noboru Otaki

IPC分类号： B41J2/325 ,  B41J13/22 ,  B41J15/00 ,  B41J11/00

CPC分类号： B41J15/005 ,  B41J13/223

摘要： A medium transporting mechanism is used in a color image forming apparatus and a color image reading apparatus. The medium transporting mechanism includes a medium holding section and a rotary transporting section. The medium holding section holds a print-medium by clamping the leading end of the print-medium. The rotary transporting section supports the medium holding section thereon and rotates so that the medium holding section travels around a platen in such a manner that the print-medium slides on at least a part of the platen and the medium holding section travels in a loop-like path which is shorter than a maximum dimension of the print-medium in a direction of travel of the print-medium. A color image recording section is located to oppose the platen so that a print-medium passes between the color image recording section and the platen. The color image recording section prints images of yellow, magenta, cyan in sequence and in register on the print-medium. A monochrome image recording section such as an electrophotographic printer may be provided in addition to the color image recording apparatus. The electrophotographic printer prints a black image only. When printing a color image, the electrophotographic printer prints a black image at a high speed and the color image recording section prints images of other colors such as yellow, magenta, and cyan at a slow speed, thereby speeding up overall printing speed in color printing operation.

摘要翻译： 在彩色图像形成装置和彩色图像读取装置中使用介质输送机构。 介质传送机构包括介质保持部和旋转传送部。 介质保持部通过夹持打印介质的前端来保持打印介质。 旋转传送部分支撑介质保持部分并旋转，使得介质保持部分以压板的方式移动，使得打印介质在压板的至少一部分上滑动，并且介质保持部分以循环传送方式行进， 比打印介质在打印介质的行进方向上的最大尺寸短。 彩色图像记录部分定位成与压板相对，使得打印介质在彩色图像记录部分和压板之间通过。 彩色图像记录部分依次打印黄色，品红色，青色的图像，并在打印介质上记录。 除了彩色图像记录装置之外，还可以提供诸如电子照相打印机的单色图像记录部分。 电子照相打印机仅打印黑色图像。 当打印彩色图像时，电子照相打印机以高速打印黑色图像，并且彩色图像记录部分以低速打印诸如黄色，品红色和青色的其他颜色的图像，从而加快彩色打印中的整体打印速度 操作。

公开(公告)号：US5878301A

公开(公告)日：1999-03-02

申请号：US964674

申请日：1997-11-05

申请人： Shinichi Katakura ,  Noboru Otaki ,  Yoshiharu Momiyama ,  Hisao Ono ,  Makoto Yabuki

发明人： Shinichi Katakura ,  Noboru Otaki ,  Yoshiharu Momiyama ,  Hisao Ono ,  Makoto Yabuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2064

摘要： A toner image fixing device in an electrophotographic image forming apparatus has a heating roller containing a heater and a backup roller, a surface of which is in contact with a surface of the heating roller. A toner image on the paper is fixed by causing the paper to pass through a contacting portion of the heating roller and the backup roller. The toner image fixing device also has a driving device for supplying driving power to the heating roller or the backup roller to rotate both the heating roller and the backup roller, and a controller. The controller controls the driving section in such a way that both the heating roller and the backup roller begin to rotate intermittently immediately after an electric power supply switch of the apparatus is turned on and heat generation from the heater is initiated, and subsequently begin to rotate continuously when the backup roller achieves one revolution by the intermittent rotation. Alternatively, the rotation speed of the heating roller and backup roller is gradually and continuously increased immediately after electric power is initiated and subsequently reach a constant speed.

摘要翻译： 电子照相图像形成装置中的调色剂图像定影装置具有包含加热器和支承辊的加热辊，其表面与加热辊的表面接触。 通过使纸通过加热辊和支撑辊的接触部分来固定纸上的调色剂图像。 调色剂图像定影装置还具有用于向加热辊或支撑辊提供驱动力以驱动加热辊和支撑辊两者以及控制器的驱动装置。 控制器以这样的方式控制驱动部分，使得加热辊和支撑辊在设备的电源开关打开并且开始从加热器产生热量之后立即开始间歇旋转，并随后开始旋转 当备用辊由于间歇旋转实现一转时，连续不断。 或者，加热辊和支撑辊的转速在电力开始后立即逐渐增加并且随后达到恒定速度。

公开(公告)号：US5781823A

公开(公告)日：1998-07-14

申请号：US616498

申请日：1996-03-19

申请人： Minoru Isobe ,  Noboru Otaki

发明人： Minoru Isobe ,  Noboru Otaki

IPC分类号： B41J3/44 ,  B41J3/54 ,  B41J3/60 ,  B41J13/00 ,  B41J13/10 ,  B65H29/58 ,  B65H29/60 ,  G03G15/22 ,  G03G21/00

CPC分类号： B41J13/10 ,  B41J3/44 ,  B41J3/546 ,  B41J3/60 ,  G03G15/04054 ,  G03G15/221

摘要： A recording apparatus according to the invention includes a first recording device arranged in a first path and a second arranged upstream of the first recording device. A second path has a first end and a second end. A first feed-direction-switching device is arranged upstream of the first recording device and the second path, and downstream of the second recording device. The first feed-direction-switching device directs the medium either to the first recording device or into the first end of the second path. A second feed-direction switching device is arranged downstream of the first recording device and directs the leading end of the medium into the second end of the second path when the first and/or second recording device completes recording of the information on the first side of the medium. The medium is then transported face down through the second path back to the first path for recording on the second side thereof. A method of recording includes first, second, and third mode operations. A medium is printed in monochrome and/or in color in the first and/or second mode. The medium is then transported face down through the second path back to the first path for printing operation performed by the first and/or second recording devices.

摘要翻译： 根据本发明的记录装置包括布置在第一路径中的第一记录装置和布置在第一记录装置的上游的第二记录装置。 第二路径具有第一端和第二端。 第一馈送方向切换装置设置在第一记录装置和第二路径的上游，以及第二记录装置的下游。 第一馈送方向切换装置将介质引导到第一记录装置或将其引导到第二路径的第一端。 第二馈送方向切换装置设置在第一记录装置的下游，并且当第一和/或第二记录装置在第一记录装置的第一侧完成信息的记录时，将介质的前端引导到第二路径的第二端 介质。 然后将介质朝下通过第二路径返回到第一路径以在其第二侧进行记录。 记录方法包括第一，第二和第三模式操作。 介质以第一和/或第二模式以单色和/或颜色打印。 然后将介质朝下通过第二路径返回到用于由第一和/或第二记录装置执行的打印操作的第一路径。