公开(公告)号：US07016630B2

公开(公告)日：2006-03-21

申请号：US10836278

申请日：2004-05-03

申请人： Kazumi Yoshizaki ,  Kenji Okado ,  Masashige Tamura ,  Naotaka Ikeda

发明人： Kazumi Yoshizaki ,  Kenji Okado ,  Masashige Tamura ,  Naotaka Ikeda

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/09 ,  G03G2215/0177

摘要： In an image forming apparatus having a powder transport mechanism including a powder container and a powder transport means which rotates relative to the powder container, the powder transport means has the rotation center substantially on the axis of the powder container, and the space between the inner wall surface of the powder container and the powder transport means is sealed with magnetic particles held by a magnetic-filed generation means. The magnetic particles have a specific saturation magnetization σs and a specific value of A×σA where the residual magnetic flux density of the magnetic-field generation means is represented by A in a specific range and the magnetization intencity of the magnetic particles in a magnetic field with the residual magnetic flux density A is represented by σA.

摘要翻译： 在具有粉末输送机构的图像形成装置中，粉末输送机构包括粉末容器和相对于粉末容器旋转的粉末输送装置，粉末输送装置具有大致在粉末容器的轴线上的旋转中心， 粉末容器的壁表面和粉末输送装置用磁场产生装置保持的磁性颗粒密封。 磁性颗粒具有特定的饱和磁化信号和Axsigma的特定值，其中磁场产生装置的剩余磁通密度由特定范围内的A表示，并且磁场强度 具有剩余磁通密度A的磁场中的磁性颗粒由σA表示。

公开(公告)号：US07529514B2

公开(公告)日：2009-05-05

申请号：US11838984

申请日：2007-08-15

申请人： Masashige Tamura ,  Takayuki Suzuki

发明人： Masashige Tamura ,  Takayuki Suzuki

IPC分类号： G03G15/02

CPC分类号： G03G15/205 ,  G03G15/2021 ,  G03G15/235 ,  G03G15/6573 ,  G03G2215/00805 ,  G03G2215/2006 ,  G03G2215/2083

摘要： An image forming apparatus has an image forming unit for forming a toner image on a recording material, a first image heating unit having a first rotary member and a second rotary member forming a first nip therebetween, and a second image heating unit provided with a third rotary member forming a second nip between it and the first rotary member. The first rotary member, second rotary member and third rotary member respectively has a heater and an introducing unit introduces the recording material heated in the first nip into the second nip. A recording material separation temperature of the second image heating unit is lower than the recording material separation temperature of said first image heating unit, and when the toner image is heated in the second nip, the second rotary member heats the first rotary member.

摘要翻译： 图像形成装置具有用于在记录材料上形成调色剂图像的图像形成单元，具有第一旋转构件的第一图像加热单元和形成第一旋转构件的第二旋转构件，以及设置有第三图像加热单元的第二图像加热单元 旋转构件在其与第一旋转构件之间形成第二压合部。 第一旋转构件，第二旋转构件和第三旋转构件分别具有加热器，并且引入单元将在第一辊隙中加热的记录材料引入到第二辊隙中。 第二图像加热单元的记录材料分离温度低于所述第一图像加热单元的记录材料分离温度，并且当在第二压区中加热调色剂图像时，第二旋转构件加热第一旋转构件。

公开(公告)号：US07031643B2

公开(公告)日：2006-04-18

申请号：US11079421

申请日：2005-03-15

申请人： Masashige Tamura

发明人： Masashige Tamura

IPC分类号： G03G15/01

CPC分类号： G03G21/105 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0177

摘要： A developing device including: plural developing units each for developing an electrostatic image formed on an image bearing member with developer that contains toner and carriers in a developing portion; a rotary member for mounting the plurality of developing units thereon and rotating along a path that includes the developing portion; and a containing pipe provided in the rotary member to contain excess developer discharged from the developing units in association with a replenishment of developer, in which the containing pipe is substantially non-rotatably provided, and the developer in the containing pipe is fed utilizing the rotation of the rotary member.

公开(公告)号：US06520497B2

公开(公告)日：2003-02-18

申请号：US09771981

申请日：2001-01-30

申请人： Masashige Tamura

发明人： Masashige Tamura

IPC分类号： B65H352

CPC分类号： B65H3/5261

摘要： The present invention provides a sheet feeding apparatus for separating and feeding sheets contained in sheet containing means one by one that has separating and feeding means including a feeding rotary member and a separating rotary member brought into pressure contact with the feeding rotary member and a torque limiter provided between the separating rotary member and a driving shaft wherein a coefficient of friction of the separating rotary member is set so that relations that &mgr;BC N>T/r, &mgr;BP>&mgr;CP, and T/r>&mgr;CP N>&mgr;PP N may be established among a coefficient of friction &mgr;BC between the feeding rotary member and the separating rotary member, a coefficient of friction &mgr;BP between the feeding rotary member and the sheet, a coefficient of friction &mgr;CP between the separating rotary member and the sheet, a coefficient of friction &mgr;PP between the sheets, a pressure contact force N of the separating rotary member, an idling torque T of the torque limiter and an effective radius r of the separating rotary member.

摘要翻译： 本发明提供了一种片材进给装置，用于将包含在片材容纳装置中的片材一个一个地分离和供给，该片材具有分离和进给装置，该分离和进给装置包括进给旋转部件和与进给旋转部件压力接触的分离旋转部件和扭矩限制器 设置在分离旋转构件和驱动轴之间，其中分离旋转构件的摩擦系数被设定为可以建立muBC N> T / r，muBP> muCP和T / r> muCP N> muPP N的关系 在馈送旋转构件和分离旋转构件之间的摩擦系数muBC中，馈送旋转构件与片材之间的摩擦系数μBP，分离旋转构件和片材之间的摩擦系数μCP，摩擦系数μPP 在片材之间，分离旋转构件的压力接触力N，转矩限制器的怠速转矩T和第二个转矩限制器的有效半径r e分离旋转构件。

公开(公告)号：US06332608B1

公开(公告)日：2001-12-25

申请号：US09475208

申请日：1999-12-29

申请人： Masashige Tamura

发明人： Masashige Tamura

IPC分类号： B65H708

CPC分类号： B65H5/24 ,  B65H3/06 ,  B65H3/5261 ,  B65H29/6609 ,  B65H2301/44516 ,  B65H2511/11 ,  B65H2511/20 ,  B65H2220/01 ,  B65H2220/04 ,  B65H2220/02 ,  B65H2220/11

摘要： The present invention relates to a sheet feeding apparatus in which sheet feeding out means, while a sheet is conveyed by a sheet feed roller and a retard roller, feeds out a succeeding sheet to an abutting portion of the sheet feed roller and the retard roller so that a leading end of the succeeding sheet overlaps a trailing end of a preceding sheet.

摘要翻译： 片材供给装置技术领域本发明涉及一种片材供给装置，其中片材供给装置在片材由片材进给辊和延迟辊输送的同时，将后续片材送出到供纸辊和延迟辊的抵接部分 后续纸张的前端与前一张纸的尾端重叠。

公开(公告)号：US20130009355A1

公开(公告)日：2013-01-10

申请号：US13525783

申请日：2012-06-18

申请人： Junji Yasuda ,  Masashige Tamura ,  Shinichi Nishida ,  Tomokazu Morita ,  Kazumasa Shibata

发明人： Junji Yasuda ,  Masashige Tamura ,  Shinichi Nishida ,  Tomokazu Morita ,  Kazumasa Shibata

IPC分类号： B65H3/06 ,  B65H1/08

CPC分类号： B65H3/46 ,  B65H1/14 ,  B65H3/0607 ,  B65H2403/42 ,  B65H2403/544 ,  B65H2403/732 ,  B65H2403/942 ,  B65H2405/1117 ,  B65H2513/412 ,  B65H2557/352 ,  B65H2801/06 ,  B65H2220/02

摘要： Provided are a sheet feeding device capable of preventing the occurrence of failure in sheet feeding and degradation in quality of printed matter with downsizing achieved and an image forming apparatus provided with the sheet feeding device.The sheet feeding device includes a sheet storing portion 55 in which sheets are stored, a feeding roller 51 placed above the sheet storing portion, a flexible member 53 placed along part of the peripheral surface of the feeding roller with one end of the flexible member fixed to the sheet storing portion at a position below the stored sheets, and a pulling-up portion 300 that is connected to the other end of the flexible member above the sheet storing portion and that pulls up the flexible member to press the sheet on the feeding roller.

摘要翻译： 提供一种片材进给装置，其能够防止纸张进给失败的发生和实现的小型化的印刷品的质量下降，以及设置有片材进给装置的图像形成装置。 片材供给装置包括：片材收纳部55，其中存储有片材;放置在片材收纳部的上方的供给辊51;沿着供给辊的周面的一部分配置的柔性部件53，其中柔性部件的一端固定 在存储的纸张下方的位置处的纸张存储部分以及在纸张存储部分上方连接到柔性元件的另一端并且拉动柔性元件以将纸张按压在进纸上的提拉部分300 滚筒。

公开(公告)号：US07620355B2

公开(公告)日：2009-11-17

申请号：US11460395

申请日：2006-07-27

申请人： Masashige Tamura ,  Ryuichi Ibe

发明人： Masashige Tamura ,  Ryuichi Ibe

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2032

摘要： A fixing apparatus in which a sheet on which a toner image is fixed in a first heating portion is conveyed to a second heating portion through a first conveying path, the conveyed sheet is re-fixed in the second heating portion, and the re-fixed sheet is conveyed through a second conveying path having a curved guide surface. The first conveying path, the second heating portion, and the second conveying path are arranged from above downward in order of mention, and the sheet re-fixed in the second conveying path is allowed to pass so that a surface opposite to a surface on which the image is fixed moves along the guide surface.

摘要翻译： 一种定影装置，其中在第一加热部分中将调色剂图像固定在其上的片材通过第一输送路径被输送到第二加热部分，所输送的片材被重新固定在第二加热部分中，并且重新固定 片材通过具有弯曲引导表面的第二输送路径输送。 第一输送路径，第二加热部分和第二输送路径从下方按顺序布置，并且允许在第二输送路径中重新固定的纸张通过，使得与其上表面相对的表面 图像是沿引导表面的固定移动。

公开(公告)号：US07233756B2

公开(公告)日：2007-06-19

申请号：US10693981

申请日：2003-10-28

申请人： Masashige Tamura

发明人： Masashige Tamura

IPC分类号： G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0898 ,  G03G15/0121 ,  G03G2215/0177

摘要： An image forming apparatus has a developing device containing therein a developer including a toner and a carrier, the developing device having a first chamber for developing an electrostatic image formed on an image bearing member, and a second chamber constituting a developer circulating route between it and the first chamber, a carrying member rotatably provided in the second chamber for carrying the developer, a rotary member holding the developing device and rotatable in a route including a developing position, a supplying device for supplying the developer to the developing device when at the developing position, an opening provided in the second chamber for outwardly discharging therethrough any excess developer resulting from the supply of the developer, and a wall portion provided in the second chamber for suppressing the developer flowing out through the opening with the rotation of the rotary member.

摘要翻译： 图像形成装置具有包含调色剂和载体的显影剂的显影装置，所述显影装置具有用于显影形成在图像承载部件上的静电图像的第一室和构成在图像承载部件之间的显影剂循环路径的第二室， 第一室，可旋转地设置在用于承载显影剂的第二室中的承载构件，保持显影装置并且在包括显影位置的路线中可旋转的旋转构件，当处于显影位置时向显影装置供应显影剂的供应装置 位置，设置在第二室中的开口，用于向外排出由于显影剂供应产生的任何多余的显影剂，以及设置在第二室中的壁部分，用于通过旋转构件的旋转抑制显影剂通过开口流出。

公开(公告)号：US20060127143A1

公开(公告)日：2006-06-15

申请号：US11275124

申请日：2005-12-13

申请人： Masashige Tamura ,  Takayuki Suzuki

发明人： Masashige Tamura ,  Takayuki Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2021 ,  G03G15/235 ,  G03G15/6573 ,  G03G2215/00805 ,  G03G2215/2006 ,  G03G2215/2083

摘要： The present invention has as its object to provide an image forming apparatus which can well perform both-side image forming for forming an image of high gloss on one side of a recording sheet and forming an image of non-gloss or low gloss on the other side thereof, and for this purpose, the image forming apparatus according to the present invention has: an image forming unit for forming a toner image on a recording material; an image heating unit for heating the toner image on the recording material in a nip portion, the image heating unit having a rotary member contacting with the front surface of the recording material in the nip portion, and a belt contacting with the rear surface of the recording material in the nip portion; a unit for reversing the front surface and rear surface of the recording material heated in the nip portion, and reintroducing the recording material into the nip portion; and a cooling unit for cooling the recording material after reintroduced moving while keeping contact with the belt before the recording material is separated from the belt.

摘要翻译： 本发明的目的是提供一种图像形成装置，其能够良好地进行用于在记录纸的一面上形成高光泽图像的双面图像形成，并在另一方形成非光泽或低光泽的图像 为此，根据本发明的图像形成装置具有：用于在记录材料上形成调色剂图像的图像形成单元; 图像加热单元，用于加热夹持部中的记录材料上的调色剂图像，所述图像加热单元具有与所述夹持部中的记录材料的前表面接触的旋转构件，以及与所述夹持部的背面接触的带 记录材料在辊隙部分中; 用于反转在辊隙部分中加热的记录材料的前表面和后表面的单元，以及将记录材料重新引入到辊隙部分中; 以及冷却单元，用于在记录材料与带分离之前，在重新引入移动之后冷却记录材料，同时保持与带的接触。

公开(公告)号：US06987940B2

公开(公告)日：2006-01-17

申请号：US10421775

申请日：2003-04-24

申请人： Masashige Tamura

发明人： Masashige Tamura

IPC分类号： G03G15/01

CPC分类号： G03G21/105 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0177

摘要： A developing device having a plurality of developing devices for developing an electrostatic image formed on an image bearing member by a developer including a toner and a carrier, a rotary member carrying the plurality of developing devices therein and rotated in a route including a developing portion, a discharging port provided in each of the plurality of developing devices for discharging any excess developer therethrough with the supply of the developer to the developing device located in the developing portion, a collecting pipe provided in the rotary member for collecting therethrough the excess developer discharged from the plurality of developing devices, and a communicating tube for linking the discharging port and the collecting pipe together, the communicating tube being made into a slope shape from the discharging port toward the collecting pipe, wherein when the developing devices are located in the developing portion, the discharging port is located above the collecting pipe.