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1. 发明授权

US07574165B2 Fixing method, fixing device, and image forming apparatus 失效
标题翻译：定影方法，定影装置和成像装置
公开(公告)号：US07574165B2
公开(公告)日：2009-08-11
申请号：US10573261
申请日：2004-09-24
申请人： Tetsunori Mitsuoka , Toshiaki Kagawa
发明人： Tetsunori Mitsuoka , Toshiaki Kagawa
IPC分类号： G03G15/20
CPC分类号： G03G15/2064
摘要： A fixing device (14) includes a fixing roller (31) which is in contact with an unfixed image formed on a printing medium (91) with toner (93) and a pressure roller (32) which is in contact with the fixing roller (31). The fixing device (14) causes the fixing roller (31) and the pressure roller (32) to sandwich and feed the printing medium (91), so as to fix the unfixed image onto the printing medium (91). The fixing device (14) gives a holding electric field which is an electric field in a direction for holding a reverse polarity toner (92) on the printing medium (91). The reverse polarity toner (92) has a polarity opposite to that of the toner (93) which forms an image on the printing medium. Thus, it is possible to avoid a troulile caused by the adhesion of the reverse polarity toner (92) to the pressure roller (32). Therefore, it is possible to avoid an image failure caused by the reverse polarity toner, maintain a normal image forming operation, and secure a satisfactory image quality and the life of each means even in long-term use.
摘要翻译：定影装置（14）包括定影辊（31），其与形成在具有调色剂（93）的打印介质（91）上的未定影图像和与定影辊（14）接触的加压辊 31）。定影装置（14）使定影辊（31）和加压辊（32）夹持并进给打印介质（91），以将未定影图像固定在打印介质（91）上。定影装置（14）给出在打印介质（91）上保持反极性调色剂（92）的方向上的电场的保持电场。反极性调色剂（92）具有与在打印介质上形成图像的调色剂（93）的极性相反的极性。因此，可以避免由反极性调色剂（92）粘附到加压辊（32）而引起的烦躁。因此，可以避免由反极性调色剂引起的图像故障，保持正常的图像形成操作，并且即使在长期使用中也能确保令人满意的图像质量和每种手段的寿命。

2. 发明申请

US20070036594A1 Fixing method, fixing device, and image forming apparatus 失效
标题翻译：定影方法，定影装置和成像装置
公开(公告)号：US20070036594A1
公开(公告)日：2007-02-15
申请号：US10573261
申请日：2004-09-24
申请人： Tetsunori Mitsuoka , Toshiaki Kagawa
发明人： Tetsunori Mitsuoka , Toshiaki Kagawa
IPC分类号： G03G15/20
CPC分类号： G03G15/2064
摘要： A fixing device (14) includes a fixing roller (31) which is in contact with an unfixed image formed on a printing medium (91) with toner (93) and a pressure roller (32) which is in contact with the fixing roller (31). The fixing device (14) causes the fixing roller (31) and the pressure roller (32) to sandwich and feed the printing medium (91), so as to fix the unfixed image onto the printing medium (91). The fixing device (14) gives a holding electric field which is an electric filed in a direction for holding a reverse polarity toner (92) on the printing medium (91). The reverse polarity toner (92) has a polarity opposite to that of the toner (93) which forms an image on the printing medium. Thus, it is possible to avoid a trouble caused by the adhesion of the reverse polarity toner (92) to the pressure roller (32). Therefore, it is possible to avoid an image failure caused by the reverse polarity toner, maintain a normal image forming operation, and secure a satisfactory image quality and the life of each means even in long-term use.
摘要翻译：定影装置（14）包括定影辊（31），其与形成在具有调色剂（93）的打印介质（91）上的未定影图像和与定影辊（14）接触的加压辊 31）。定影装置（14）使定影辊（31）和加压辊（32）夹持并进给打印介质（91），以将未定影图像固定在打印介质（91）上。固定装置（14）在打印介质（91）上沿着保持反极性调色剂（92）的方向上产生电场的保持电场。反极性调色剂（92）具有与在打印介质上形成图像的调色剂（93）的极性相反的极性。因此，可以避免由反极性调色剂（92）粘附到加压辊（32）而引起的故障。因此，可以避免由反极性调色剂引起的图像故障，保持正常的图像形成操作，并且即使在长期使用中也能确保令人满意的图像质量和每种手段的寿命。

3. 发明申请

US20060013606A1 Heater, and image forming apparatus, heating method incorporating same 有权
公开(公告)号：US20060013606A1
公开(公告)日：2006-01-19
申请号：US11229412
申请日：2005-09-16
申请人： Toshiaki Kagawa , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Tetsunori Mitsuoka
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2039 , H05B6/145
摘要： A fixer (heater) includes a heat roller and a pressure roller pressing each other. The fixer heats a heated material by passing the heated material through a press region where the heat roller and the pressure roller meet. The fixer further includes an external heat roller heating the pressure roller from outside the pressure roller. A transit time taken for any given point on the heated material to pass through the press region is less than or equal to 2.3×10−2 sec. The surface temperature, T1 (° C.), of the heat roller and the surface temperature, T2 (° C.), of the pressure roller satisfy T1−T2≦100 (° C.), and preferably satisfy T1−T2≦70 (° C.). The load on the heat roller is reduced, and so is the power consumption.

4. 发明申请

US20050111892A1 Fixing device, image forming device, and manufacturing method of fixing device 有权
标题翻译：固定装置，图像形成装置以及固定装置的制造方法
公开(公告)号：US20050111892A1
公开(公告)日：2005-05-26
申请号：US10997628
申请日：2004-11-23
申请人： Tetsunori Mitsuoka , Hiroshi Kida , Toshiaki Kagawa , Takashi Yamanaka
发明人： Tetsunori Mitsuoka , Hiroshi Kida , Toshiaki Kagawa , Takashi Yamanaka
IPC分类号： F16C13/00 , G03G15/20
CPC分类号： G03G15/2064
摘要： A fixing device comprising a fix member for touching an unfixed image on a recording medium, and a press member for being pressed against the fixing member, so as to fix the unfixed image on the recording medium by transporting the recording medium through a nip between the fix member and the press member, wherein (100·K1)≦(K2)≦(320·K1) where K1 is a heat transmission coefficient of the press member and K2 is a heat transmission coefficient of the fix member. With this arrangement, it is possible to transmit heat to toner and the recording medium in a short time. Thus, it is possible to attain high-speed printing.
摘要翻译：一种定影装置，包括用于接触记录介质上的未定影图像的固定构件和用于压靠固定构件的按压构件，以便通过将记录介质传送到记录介质之间的辊隙而将未定影图像固定在记录介质上（100.K1）<=（K2）<=（320.K1）其中K1是按压构件的热传递系数，K2是固定构件的传热系数。通过这种布置，可以在短时间内将热量传递给调色剂和记录介质。因此，可以实现高速打印。

5. 发明授权

US07532834B2 Fixing device and fixing method and image forming device 有权
标题翻译：固定装置及固定方法及成像装置
公开(公告)号：US07532834B2
公开(公告)日：2009-05-12
申请号：US10571939
申请日：2004-09-15
申请人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing device (23) of the present invention includes a fixing roller (131) contacting a toner image surface, and a pressure roller (132) contacting a surface opposite to the toner image surface. In the fixing device (23), a printing sheet (P) on which unfixed toner image is formed passes through a fixing nip portion (Y) where the fixing roller (131) and the pressure roller (132) are in contact with each other, so that the above-described toner image is fixed on the printing sheet (P). The fixing device (23) further includes a control circuit (150) which controls heater lamps (134 to 136) so that a surface temperature of the pressure roller (132) is in a temperature range defined by a cold offset occurring boundary temperature (Thc) of the fixing roller (131) and/or a hot offset occurring boundary temperature (Thh) of the fixing roller (131). With this, it is possible to suppress or prevent a transfer of toner to a pair of rollers (a transfer from the back of the printing sheet to the pressure roller, a transfer from the pressure roller to the fixing roller).
摘要翻译：本发明的定影装置（23）包括与调色剂图像表面接触的定影辊（131）和与调色剂图像表面相对的表面接触的加压辊（132）。在固定装置（23）中，形成有未定影调色剂图像的打印纸（P）通过定影辊（131）和加压辊（132）彼此接触的定影夹持部（Y），使得上述调色剂图像固定在打印纸（P）上。定影装置（23）还包括控制加热灯（134至136）的控制电路（150），使得加压辊（132）的表面温度处于由冷偏移发生的边界温度（Thc）限定的温度范围内）和/或定影辊（131）的热偏移发生边界温度（Thh）。由此，可以抑制或防止调色剂转印到一对辊（从印刷纸的背面到加压辊的转印，从加压辊到定影辊的转印）。

6. 发明授权

US07199332B2 Heating device and image forming device 有权
标题翻译：加热装置和成像装置
公开(公告)号：US07199332B2
公开(公告)日：2007-04-03
申请号：US10567791
申请日：2004-08-10
申请人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
IPC分类号： G03G15/20 , H05B3/02
CPC分类号： G03G15/2053 , G03G2215/2006 , H05B3/0095
摘要： Within a fixing roller (231) are disposed a main heater lamp (234a) for heating a central portion of the fixing roller and a sub-heater lamp (235a) for heating opposite end portions of the fixing roller. MRnh, SRnh and ΣRnh satisfy the formula (1) or (2): ΣRnh≧30.5·Ln(Ht)+382 formula (1) MRnh≦−21.9·Ln(Ht)−198, formula (2) where MRnh is a mean value of heat distribution in a no-heat generating section of the main heater lamp; SRnh is a mean value of heat distribution in the a no-heat generating section of the sub-heater lamp; ΣRnh is the sum total of these mean values; and Ht=vp/(Mh·λ) where vp is a fixing speed (m/s), Mh a heat capacity per unit length of the heating member (J/(° C.·m)) and λ a heat conductivity of a material forming the heating member (W/(m·° C.)).
摘要翻译：在定影辊（231）内设置有用于加热定影辊的中心部分的主加热灯（234a）和用于加热定影辊的相对端部的副加热灯（235a）。 MRnh，SRnh和SigmaRnh满足公式（1）或

7. 发明申请

US20060289417A1 Heating device 有权
标题翻译：加热装置
公开(公告)号：US20060289417A1
公开(公告)日：2006-12-28
申请号：US10556151
申请日：2004-05-11
申请人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
IPC分类号： H05B3/00 , G03G15/01
CPC分类号： G03G15/2064
摘要： A fusing device (23) has heat reflectors (238) and (239) positioned in consideration of the fact that convective heat loss from respective outer surfaces of the heat reflectors (238) and (239) depends on orientation of the outer surfaces. More specifically, each of the heat reflectors (238) and (239) are positioned so as to have a convective heat transfer coefficient η of up to 0.9. The convective heat transfer coefficient η is given by the following expression: η=(Su+0.77Sh+0.54Sd)/(Su+Sh+Sd), were Su is a projected area of an outer surface of each of the heat reflectors on an upper horizontal plane, Sh is a projected area of the same on a vertical plane, and Sd is a projected area of the same on a lower horizontal plane.
摘要翻译：考虑到来自热反射器（238）和（239）的各个外表面的对流热损失取决于外表面的定向的事实，定影装置（23）具有热反射器（238）和（239）。更具体地，每个热反射器（238）和（239）被定位成具有高达0.9的对流传热系数η。 eta =（Su + 0.77Sh + 0.54Sd）/（Su + 0.77Sh + 0.54Sd）/（Su + 0.77Sh + 0.54Sd） Sh + Sd），<？in-line-formula description =“In-line Formulas”end =“tail”？> Su是上水平面上每个热反射器的外表面的投影面积，Sh 是在垂直平面上的投影面积，并且Sd是在下部水平面上的投影面积。

8. 发明授权

US07613411B2 Fuser unit and imaging forming apparatus having the same 失效
标题翻译：定影单元和具有该定影单元的成像装置
公开(公告)号：US07613411B2
公开(公告)日：2009-11-03
申请号：US11762791
申请日：2007-06-14
申请人： Yoshinobu Tateishi , Toyoaki Nanba , Hiroaki Hori , Toshiaki Kagawa , Tetsunori Mitsuoka
发明人： Yoshinobu Tateishi , Toyoaki Nanba , Hiroaki Hori , Toshiaki Kagawa , Tetsunori Mitsuoka
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2019
摘要： A fuser unit including: a set of a heat roller and a pressure roller for sandwiching and conveying a printing sheet while heating the printing sheet by the heat roller; a peripheral surface contact member which is in contact with the peripheral surface of the heat roller; an external heater for heating the peripheral surface contact member by applying electric energy; a contact member temperature sensor for detecting a temperature of the peripheral surface contact member; and a temperature controller for controlling an upper limit temperature of the peripheral surface contact member in accordance with the number of printing sheets conveyed per unit time.
摘要翻译：一种定影单元，包括：一组加热辊和压辊，用于在通过加热辊加热印刷片的同时夹持和输送印刷纸; 与所述加热辊的周面接触的周面接触构件; 用于通过施加电能来加热外周面接触构件的外部加热器; 接触构件温度传感器，用于检测周面接触构件的温度; 以及温度控制器，用于根据每单位时间传送的打印纸的数量来控制周面接触构件的上限温度。

9. 发明授权

US07446281B2 Heating device 有权
标题翻译：加热装置
公开(公告)号：US07446281B2
公开(公告)日：2008-11-04
申请号：US10556151
申请日：2004-05-11
申请人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
IPC分类号： H05B1/00 , G03G15/20
CPC分类号： G03G15/2064
摘要： A fusing device (23) has heat reflectors (238) and (239) positioned in consideration of the fact that convective heat loss from respective outer surfaces of the heat reflectors (238) and (239) depends on orientation of the outer surfaces. More specifically, each of the heat reflectors (238) and (239) are positioned so as to have a convective heat transfer coefficient η of up to 0.9. The convective heat transfer coefficient η is given by the following expression: η=(Su+0.77Sh+0.54Sd)/(Su+Sh+Sd), were Su is a projected area of an outer surface of each of the heat reflectors on an upper horizontal plane, Sh is a projected area of the same on a vertical plane, and Sd is a projected area of the same on a lower horizontal plane.
摘要翻译：考虑到来自热反射器（238）和（239）的各个外表面的对流热损失取决于外表面的定向的事实，定影装置（23）具有热反射器（238）和（239）。更具体地，每个热反射器（238）和（239）被定位成具有高达0.9的对流传热系数η。 eta =（Su + 0.77Sh + 0.54Sd）/（Su + 0.77Sh + 0.54Sd）/（Su + 0.77Sh + 0.54Sd） Sh + Sd），<？in-line-formula description =“In-line Formulas”end =“tail”？> Su是上水平面上每个热反射器的外表面的投影面积，Sh 是在垂直平面上的投影面积，并且Sd是在下部水平面上的投影面积。

10. 发明授权

US07266319B2 Heater, and image forming apparatus, heating method incorporating same 有权
公开(公告)号：US07266319B2
公开(公告)日：2007-09-04
申请号：US10769679
申请日：2004-01-30
申请人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
发明人： Toshiaki Kagawa , Hiroshi Kida , Takashi Yamanaka , Tetsunori Mitsuoka
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2039 , H05B6/145
摘要： A fixer (heater) includes a heat roller and a pressure roller pressing each other. The fixer heats a heated material by passing the heated material through a press region where the heat roller and the pressure roller meet. The fixer further includes an external heat roller heating the pressure roller from outside the pressure roller. A transit time taken for any given point on the heated material to pass through the press region is less than or equal to 2.3×10−2 sec. The surface temperature, T1 (° C.), of the heat roller and the surface temperature, T2 (° C.), of the pressure roller satisfy T1−T2≦100 (° C.), and preferably satisfy T1−T2≦70 (° C.). The load on the heat roller is reduced, and so is the power consumption.

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