公开(公告)号：US09063480B2

公开(公告)日：2015-06-23

申请号：US13728304

申请日：2012-12-27

申请人： Arinobu Yoshiura ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Kazuya Saito ,  Naoki Iwaya ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Teppei Kawata ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Takuya Seshita ,  Takeshi Uchitani ,  Hajime Gotoh ,  Akira Suzuki ,  Hiroshi Yoshinaga

发明人： Arinobu Yoshiura ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Kazuya Saito ,  Naoki Iwaya ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Teppei Kawata ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Takuya Seshita ,  Takeshi Uchitani ,  Hajime Gotoh ,  Akira Suzuki ,  Hiroshi Yoshinaga

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G2215/2035

摘要： In an embodiment, provided is a fixing device that includes: a fixing belt rotatable and endless; a belt holding member holding the fixing belt at each end part in an axial direction; a heat source heating the fixing belt; a nip forming member provided inside the fixing belt; an opposing rotator forming a nip portion between the opposing rotator and the fixing belt via the fixing belt; and a separating member that extends near the nip portion and separates a recording medium from a surface of the fixing belt. A leading end of the separating member is provided with a receding portion and an approaching portion that is at a different position from a position of the receding portion different in the axial direction. The approaching portion is provided nearer to the nip portion than the receding portion is provided.

摘要翻译： 在一个实施例中，提供了一种定影装置，其包括：可旋转和环形的定影带; 皮带保持部件，其沿着轴向在各端部保持所述定影带; 加热定影带的热源; 设置在定影带内的辊隙形成构件; 相对的旋转体，经由定影带在相对的旋转体和定影带之间形成夹持部分; 以及分隔构件，其在所述夹持部附近延伸并且将记录介质与所述定影带的表面分离。 分离构件的前端设置有后退部分和靠近部分，该后退部分和靠近部分处于与沿轴向方向不同的后退部分的位置不同的位置。 靠近部分设置得比设置后退部分更靠近夹持部。

公开(公告)号：US08958710B2

公开(公告)日：2015-02-17

申请号：US13747906

申请日：2013-01-23

申请人： Shuutaroh Yuasa ,  Takeshi Uchitani ,  Takamasa Hase ,  Takuya Seshita ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Arinobu Yoshiura ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Masaaki Yoshikawa ,  Masahiko Satoh ,  Hiromasa Takagi ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Shinichi Namekata ,  Kazuya Saito

发明人： Shuutaroh Yuasa ,  Takeshi Uchitani ,  Takamasa Hase ,  Takuya Seshita ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Arinobu Yoshiura ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Masaaki Yoshikawa ,  Masahiko Satoh ,  Hiromasa Takagi ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Shinichi Namekata ,  Kazuya Saito

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device includes a controller connected to a heater and at least one of a pressing rotary body and an endless rotary body. The controller performs a first fixing operation, a first transition operation, a second fixing operation, and a second transition operation. The first fixing operation fixes a toner image on a first recording medium after the fixing device is powered on. The first transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at a predetermined temperature for a first duration time. The second fixing operation fixes a toner image on a second recording medium. The second transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at the predetermined temperature for a second duration time smaller than the first duration time.

摘要翻译： 定影装置包括连接到加热器和压紧旋转体和环形旋转体中的至少一个的控制器。 控制器执行第一定影操作，第一转换操作，第二定影操作和第二转换操作。 第一固定操作在定影装置通电之后将调色剂图像定影在第一记录介质上。 第一过渡操作使加压旋转体和环形旋转体一起旋转，同时控制加热器，以将永久旋转体保持在预定温度下持续第一持续时间。 第二定影操作将调色剂图像固定在第二记录介质上。 第二过渡操作在控制加热器的同时使压制旋转体和环形旋转体旋转，将环形旋转体保持在预定温度下，持续时间小于第一持续时间。

公开(公告)号：US08953994B2

公开(公告)日：2015-02-10

申请号：US13717046

申请日：2012-12-17

申请人： Naoki Iwaya ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Hiromasa Takagi ,  Takuya Seshita ,  Takahiro Imada ,  Takamasa Hase ,  Hajime Gotoh ,  Arinobu Yoshiura ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kazuya Saito ,  Kensuke Yamaji ,  Akira Suzuki

发明人： Naoki Iwaya ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Hiromasa Takagi ,  Takuya Seshita ,  Takahiro Imada ,  Takamasa Hase ,  Hajime Gotoh ,  Arinobu Yoshiura ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kazuya Saito ,  Kensuke Yamaji ,  Akira Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

摘要： A fixing device that fixes an image on a recording medium includes a rotatable endless belt, deployed in a loop supported by rollers, a nip forming member provided inside the loop formed by the belt, a support member that supports the nip forming member, a counter rotation body disposed outside the loop formed by the belt and configured to form a nip with the belt by being in contact with the nip forming member through the belt, and a heat source configured to heat the belt directly by a radiant heat except at the nip. The support member includes a base portion that contacts the nip forming member and two arms extending from the base portion in a direction away from the nip forming member to partially surround a part of heat generating portion of the heat source.

摘要翻译： 将图像固定在记录介质上的定影装置包括可旋转的环形带，其布置在由辊支撑的环中，设置在由带形成的环内的辊隙形成构件，支撑辊隙形成构件的支撑构件， 旋转体，其设置在由带形成的环的外部，并且被配置为通过与所述带与辊隙形成构件接触而与所述带形成辊隙;以及热源，构造成通过除了所述辊隙之外的辐射热直接加热所述带 。 支撑构件包括接触辊隙形成构件的基部和从远离夹持形成构件的方向从基部延伸的两个臂，以部分地围绕热源的发热部分的一部分。

公开(公告)号：US08953991B2

公开(公告)日：2015-02-10

申请号：US13371985

申请日：2012-02-13

申请人： Satoshi Ueno ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

发明人： Satoshi Ueno ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2028

摘要： A fixing device includes a fixing member configured to heat and fix a toner image onto a recording medium; a pressurizing member configured to press a heating member, which is used for heating the fixing member, against the fixing member and form a fixing nip part; and a guide member configured to guide the recording medium away from the fixing member and the pressurizing member at a downstream side of the fixing member or the pressurizing member in a conveying direction of the recording medium. The guide member includes a pushing unit for maintaining a relative positional relationship between the guide member and an outer peripheral surface of the fixing member or the pressurizing member, and the pushing unit is provided in a manner as to follow surface characteristics of outer peripheral parts of the fixing member or the pressurizing member where the pushing unit pushes.

摘要翻译： 定影装置包括：构造成将调色剂图像加热并固定到记录介质上的固定构件; 加压构件，其构造成将用于加热所述固定构件的加热构件压靠在所述固定构件上并形成定影夹持部; 以及引导构件，其构造成在记录介质的传送方向上将记录介质引导远离固定构件和加压构件在固定构件或加压构件的下游侧。 引导构件包括用于保持引导构件和固定构件或加压构件的外周面之间的相对位置关系的推动单元，并且推动单元设置成遵循外围部分的外围部分的表面特性 固定构件或推压单元推动的加压构件。

公开(公告)号：US08953967B2

公开(公告)日：2015-02-10

申请号：US13147896

申请日：2010-03-02

申请人： Takamasa Hase

发明人： Takamasa Hase

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G2215/2032

摘要： A fixation device includes a fixation member including a heating member, a pressure-application member press-contacting the fixation member forming a nip portion, an exciting coil induction-heating the heating member, a first temperature detection unit detecting a first temperature of the pressure-application member or a first ambient temperature of the fixation member, a second temperature detection unit detecting a second temperature of the fixation member, and a control unit selecting a temperature control mode or power control mode controlling power to the exciting coil. When the first temperature exceeds a first threshold temperature or the first ambient temperature exceeds a first ambient threshold temperature, the control unit selects the temperature control mode, and while the first temperature is equal to or lower than the first threshold temperature or the first ambient temperature is equal to or lower than the first ambient threshold temperature, the control unit selects the power control mode.

摘要翻译： 固定装置包括：固定构件，其包括加热构件，压力接触形成夹持部的固定构件的加压构件，感应加热构件的励磁线圈;检测压力的第一温度的第一温度检测单元 所述固定构件的第一环境温度，检测所述固定构件的第二温度的第二温度检测单元以及控制所述激励线圈的功率的温度控制模式或功率控制模式的控制单元。 当第一温度超过第一阈值温度或第一环境温度超过第一环境温度时，控制单元选择温度控制模式，并且当第一温度等于或低于第一阈值温度或第一环境温度 等于或低于第一环境阈值温度时，控制单元选择功率控制模式。

公开(公告)号：US08953960B2

公开(公告)日：2015-02-10

申请号：US13221340

申请日：2011-08-30

申请人： Satoshi Ueno ,  Masanao Ehara ,  Tadashi Ogawa ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

发明人： Satoshi Ueno ,  Masanao Ehara ,  Tadashi Ogawa ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Kensuke Yamaji

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/205

摘要： A fixing device includes a fixing rotation body heating and fixing an unfixed image onto a recording medium; a pressing rotation body pressing the recording medium to the fixing rotation body; a first temperature detection unit detecting a temperature of the fixing rotation body; and plural second temperature detection units detecting a temperature of the pressing rotation body. Further the fixing device selects a predetermined second temperature detection unit from the plural second temperature detection units depending on an operation mode of the fixing device, and the fixing device detects the temperature of the pressing rotation body by using the predetermined second temperature detection unit selected by the fixing device.

摘要翻译： 定影装置包括固定旋转体，其将未定影图像加热并固定到记录介质上; 按压旋转体，将记录介质按压到固定旋转体; 第一温度检测单元，检测固定旋转体的温度; 以及多个第二温度检测单元，检测按压旋转体的温度。 此外，定影装置根据定影装置的操作模式从多个第二温度检测单元中选择预定的第二温度检测单元，并且定影装置通过使用由第二温度检测单元选择的预定的第二温度检测单元来检测按压旋转体的温度， 固定装置。

公开(公告)号：US20140363184A1

公开(公告)日：2014-12-11

申请号：US14289851

申请日：2014-05-29

申请人： Hideyuki Santo ,  Yukiko Iwasaki ,  Takamasa Hase

发明人： Hideyuki Santo ,  Yukiko Iwasaki ,  Takamasa Hase

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/2039

摘要： An image forming apparatus, including: electrostatic latent image bearing member; electrostatic latent image forming unit; developing unit configured to develop with toner to form visible image; transferring unit; fixing unit; and discharging unit, the toner containing binder resin, colorant, and releasing agent, the binder resin containing crystalline resin containing urethane or urea bond, or both, the toner satisfying: C/(C+A)≧0.15, C being integrated intensity of part of spectrum derived from crystalline structure of the binder resin, A being integrated intensity of part of the spectrum derived from non-crystalline structure, the spectrum being diffraction spectrum of the toner as obtained by X-ray diffraction spectroscopy, storage elastic modulus G′(70) of the toner at 70° C. being 5.0×104 Pa≦G′(70)≦1.0×106 Pa, and storage elastic modulus G′(160) thereof at 160° C. being 1.0×103 Pa≦G′(160)≦1.0×104 Pa, and the image forming apparatus satisfying S1−S2>0, S1 and S2 being passing speeds of the recording medium in the fixing unit and the discharging unit, respectively.

摘要翻译： 一种图像形成装置，包括：静电潜像承载部件; 静电潜像形成单元; 配置成用调色剂显影以形成可见图像的显影单元; 转运单位 固定单元 所述调色剂含有粘合剂树脂，着色剂和脱模剂，含有含有氨基甲酸酯或脲键的结晶性树脂的粘合剂树脂或两者均满足：C /（C + A）≥0.15，C为 衍生自粘结剂树脂的晶体结构的光谱的一部分，A是由非晶结构衍生的部分光谱的积分强度，光谱是通过X射线衍射光谱法获得的调色剂的衍射光谱，储能弹性模量G' （70）为5.0×104Pa·nlE; G'（70）＆nlE; 1.0×106Pa，其在160℃下的储能弹性模量G'（160）为1.0×10 3 Pa＆amp; G'（160）＆nlE; 1.0×104Pa，图像形成装置分别满足S1-S2> 0，S1和S2是记录介质在定影单元和放电单元中的通过速度。

公开(公告)号：US20140342283A1

公开(公告)日：2014-11-20

申请号：US14274875

申请日：2014-05-12

申请人： Atsushi Yamamoto ,  Hiroshi Yamada ,  Takamasa Hase ,  Kohsuke Nagata

发明人： Atsushi Yamamoto ,  Hiroshi Yamada ,  Takamasa Hase ,  Kohsuke Nagata

IPC分类号： G03G9/00

CPC分类号： G03G9/08764 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08797 ,  G03G15/0865

摘要： To provide a toner for developing an electrostatic image, the toner including toner particles, wherein the toner particles contain: a non-crystalline resin A; and a crystalline resin, wherein the crystalline resin contains a crystalline resin C containing a urethane bond, or a urea bond, or both thereof, and wherein the toner particles each have a sea-island structure, where the resin C is dispersed in the non-crystalline resin on a cross-section of the toner particle.

摘要翻译： 为了提供用于显影静电图像的调色剂，调色剂包括调色剂颗粒，其中调色剂颗粒包含：非结晶树脂A; 和结晶性树脂，其中所述结晶性树脂含有含有氨基甲酸酯键或脲键的结晶性树脂C或其二者，并且其中所述调色剂颗粒各自具有海岛结构，其中树脂C分散在非 - 在调色剂颗粒的横截面上的结晶树脂。

公开(公告)号：US08891990B2

公开(公告)日：2014-11-18

申请号：US13200592

申请日：2011-09-27

申请人： Shuutaroh Yuasa ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Kensuke Yamaji

发明人： Shuutaroh Yuasa ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Satoshi Ueno ,  Teppei Kawata ,  Takamasa Hase ,  Kazuya Saito ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2032

摘要： An image forming apparatus includes a fixing device disposed downstream from an image forming device in a recording medium conveyance direction to fix a toner image formed by the image forming device on a recording medium. The fixing device includes a pressing rotary body separatably pressed against a fixing rotary body to form a nip therebetween through which the recording medium bearing the toner image passes, and a moving assembly to move the pressing rotary body bidirectionally to press the pressing rotary body against the fixing rotary body and separate the pressing rotary body from the fixing rotary body. A controller controls the moving assembly to change a post-fixing pressing time period for which the moving assembly presses the pressing rotary body against the fixing rotary body after the recording medium bearing the toner image is discharged from the nip according to image data.

摘要翻译： 图像形成装置包括定影装置，其设置在记录介质传送方向上的图像形成装置的下游，以将由图像形成装置形成的调色剂图像定影在记录介质上。 定影装置包括可分离地按压定影旋转体的压制旋转体，以在支承调色剂图像的记录介质之间形成辊隙，移动组件使压力旋转体双向移动，将按压旋转体按压 固定旋转体并将按压旋转体与定影旋转体分开。 根据图像数据，控制移动组件以改变在固定调色剂图像的记录介质从辊隙排出的移动组件将按压旋转体按压固定旋转体之后的固定后按压时间段。

公开(公告)号：US08774666B2

公开(公告)日：2014-07-08

申请号：US13716651

申请日：2012-12-17

申请人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

发明人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2007 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a heating device to heat an endless rotary body with radiant heat, a power source to supply power to the heating device, a first heat source to heat a region on the endless rotary body corresponding to a width of the small size sheet, and a second heat source to heat regions on the endless rotary body corresponding to both widthwise ends of the large size sheet outside the width of the small size sheet. The power source supplies power only to the first heat source when the small size sheet is printed and to both the first and second heat sources when the large size sheet is printed. The power source supplies more power to the first heat source when the small size sheet is printed than when the large size sheet is printed within a maximum power available to the fixing device.

摘要翻译： 定影装置包括：用辐射热加热环形旋转体的加热装置，向加热装置供电的电源;加热环形旋转体上对应于小尺寸片材宽度的区域的第一热源; 以及第二热源，用于对与所述小尺寸片材的宽度以外的所述大尺寸片材的宽度方向两端部对应的所述环形旋转体上的区域进行加热。 当打印小尺寸片材时，电源仅向第一热源供电，并且当打印大尺寸片材时，电源仅供给第一热源。 当打印小尺寸片材时，电源为第一热源提供更多的电力，而不是在定影装置可用的最大功率内打印大尺寸片材时。