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1.发明申请公开(公告)号：US20070201910A1
公开(公告)日：2007-08-30
申请号：US11704388
申请日：2007-02-09
申请人： Toshiaki Kagawa , Hideki Ohnishi , Hiroshi Kida , Yoshiaki Masuda
发明人： Toshiaki Kagawa , Hideki Ohnishi , Hiroshi Kida , Yoshiaki Masuda
IPC分类号： G03G15/16
CPC分类号： G03G15/169 , G03G15/0266 , G03G15/0291 , G03G2215/028
摘要： The present invention is made to provide a pretransfer charging device, which allows (i) reduction of generation of discharge products such as ozone and nitroxide, (ii) excellent uniform charging, (iii) continuous stable charging for a long period of time, and (iv) restraint of distortion of a toner image. The pretransfer charging device includes (i) ion generation needles each provided face to face with an image carrier such as a photoconductor drum or an intermediating transfer belt, and (ii) a high-voltage power supply for applying a negative voltage to each of the ion generation needles. The voltage to be applied from the high-voltage power supply is not less than an ion production threshold voltage but is less than a corona discharge threshold voltage. With this, no corona discharge occurs but negative ions can be generated. This makes it possible to solve various problems caused due to the corona discharge.
摘要翻译： 本发明提供一种预转印充电装置，其能够（i）减少诸如臭氧和氮氧化物的放电产物的产生，（ii）优异的均匀充电，（iii）长时间连续稳定充电，以及 （iv）限制调色剂图像的变形。 预转印充电装置包括：（i）各离子产生针各自与诸如感光鼓或中间转印带的图像载体面对面地设置，以及（ii）高压电源，用于向 离子生成针。 从高压电源施加的电压不小于离子产生阈值电压，但小于电晕放电阈值电压。 由此，不会发生电晕放电，而是会产生负离子。 这使得可以解决由于电晕放电引起的各种问题。
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2.发明授权公开(公告)号：US07647014B2
公开(公告)日：2010-01-12
申请号：US11704388
申请日：2007-02-09
申请人： Toshiaki Kagawa , Hideki Ohnishi , Hiroshi Kida , Yoshiaki Masuda
发明人： Toshiaki Kagawa , Hideki Ohnishi , Hiroshi Kida , Yoshiaki Masuda
CPC分类号： G03G15/169 , G03G15/0266 , G03G15/0291 , G03G2215/028
摘要： The present invention is made to provide a pretransfer charging device, which allows (i) reduction of generation of discharge products such as ozone and nitroxide, (ii) excellent uniform charging, (iii) continuous stable charging for a long period of time, and (iv) restraint of distortion of a toner image. The pretransfer charging device includes (i) ion generation needles each provided face to face with an image carrier such as a photoconductor drum or an intermediating transfer belt, and (ii) a high-voltage power supply for applying a negative voltage to each of the ion generation needles. The voltage to be applied from the high-voltage power supply is not less than an ion production threshold voltage but is less than a corona discharge threshold voltage. With this, no corona discharge occurs but negative ions can be generated. This makes it possible to solve various problems caused due to the corona discharge.
摘要翻译： 本发明提供一种预转印充电装置，其能够（i）减少诸如臭氧和氮氧化物的放电产物的产生，（ii）优异的均匀充电，（iii）长时间连续稳定充电，以及 （iv）限制调色剂图像的变形。 预转印充电装置包括：（i）各离子产生针各自与诸如感光鼓或中间转印带的图像载体面对面地设置，以及（ii）高压电源，用于向 离子生成针。 从高压电源施加的电压不小于离子产生阈值电压，但小于电晕放电阈值电压。 由此，不会发生电晕放电，而是会产生负离子。 这使得可以解决由于电晕放电引起的各种问题。
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公开(公告)号：US20050135848A1
公开(公告)日：2005-06-23
申请号：US11011369
申请日：2004-12-15
申请人： Toshiaki Kagawa , Hiroshi Kida , Toyoaki Nanba , Kouji Yamaji , Tatsuya Shinkawa
发明人： Toshiaki Kagawa , Hiroshi Kida , Toyoaki Nanba , Kouji Yamaji , Tatsuya Shinkawa
CPC分类号： G03G15/2053 , G03G15/2064 , G03G2215/2093
摘要： A fixing device includes a fixing member in contact with an unfixed image constituted of developer T on one side of a recording material P; and a pressure member pressed against the fixing member. The fixing device fixes the unfixed image onto the recording material P by causing the recording material P, charged so as to have a same polarity as a polarity of the developer T, to pass through a gap between the fixing member and the pressure member. In the fixing device, an inflow current into the fixing member Ih is 0 when the recording material P passes through the gap between the fixing member and the pressure member. This securely restrains the developer on the recording material from electrostatically offset to the side of the fixing device, thereby maintaining the formation of high quality images.
摘要翻译： 定影装置包括与由记录材料P的一侧上的显影剂T构成的未定影图像接触的固定构件; 以及压靠构件的压力构件。 定影装置通过使具有与显影剂T的极性相同的极性的记录材料P通过固定构件和压力构件之间的间隙来将未定影的图像定影到记录材料P上。 在定影装置中，当记录材料P通过固定构件和压力构件之间的间隙时，进入固定构件Ih的流入电流为0。 这可靠地限制记录材料上的显影剂静电偏移到定影装置的侧面，从而保持形成高质量的图像。
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公开(公告)号：US07446281B2
公开(公告)日：2008-11-04
申请号：US10556151
申请日：2004-05-11
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。
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公开(公告)号：US07266319B2
公开(公告)日：2007-09-04
申请号：US10769679
申请日：2004-01-30
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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公开(公告)号：US20070036571A1
公开(公告)日：2007-02-15
申请号：US10571939
申请日：2004-09-15
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）。
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公开(公告)号：US20060237417A1
公开(公告)日：2006-10-26
申请号：US10567791
申请日：2004-08-10
IPC分类号： H05B3/00
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）和用于加热定影辊相对端部的副加热灯（235a）。 MRnh，SRnh和SigmaRnh满足公式（1）或（2）：<？in-line-formula description =“In-line Formulas”end =“lead”？> SigmaRnh> = 30.5.Ln（Ht）+382 formula （1）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> MRnh <= -21.9.Ln（Ht）-198式（2），<？in-line-formula description =“In-line Formulas”end =“tail”？>其中MRnh是无热分布的平均值 主加热灯的发电部分; SRnh是副加热灯的无热生成部的热分布的平均值; SigmaRnh是这些平均值的总和; 和Ht = vp /（Mh.lambda）其中vp是定影速度（m / s），Mh是加热构件的每单位长度的热容（J /（℃））和λ的热导率 形成加热构件的材料（W /（m℃））。
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公开(公告)号：US20050207803A1
公开(公告)日：2005-09-22
申请号：US11006756
申请日：2004-12-08
申请人： Masanobu Deguchi , Hiroshi Kida , Toshiaki Kagawa
发明人： Masanobu Deguchi , Hiroshi Kida , Toshiaki Kagawa
CPC分类号： G03G15/2025
摘要： A fixing device cleaning device of the present invention is provided on a fixing device which includes: a heating member heated by heating means; and a pressing member pressed against the heating member at a predetermined contact pressure, and a recording sheet is sandwiched by a pressing section of the heating member and a pressing section of the pressing member, and developer on the recording sheet is fixed, and the fixing device cleaning device includes a cleaning member, formed in a scraper shape, which is pressed against the heating member or the pressing member so as to remove the developer from a surface of the heating member or the pressing member, wherein the cleaning member includes one or more opening sections in a vicinity of a contact point with respect to a cleaning target surface of the heating member or the pressing member. Thus, foreign substances scraped by the cleaning member move to a surface (a rear surface with respect to a surface which is in contact with the cleaning target surface) of the cleaning member via the opening sections, so that the foreign substances are not deposited on a gap between the cleaning member and the cleaning target surface, thereby preventing the deposited foreign substances from adhering to the cleaning target surface again.
摘要翻译： 本发明的定影装置清洁装置设置在定影装置上，该定影装置包括：通过加热装置加热的加热构件; 按压部件按规定的接触压力按压加热部件，将记录片材夹持在加热部件的按压部和按压部件的按压部分之间，并将记录片材上的显影剂固定， 装置清洁装置包括形成为刮板形状的清洁构件，其被压靠在加热构件或按压构件上，以便从加热构件或加压构件的表面移除显影剂，其中清洁构件包括一个或 相对于加热部件或按压部件的清洁对象面的接触点附近的多个开口部。 因此，被清扫部件刮除的异物经由开口部移动到清扫部件的表面（相对于与清洗对象面接触的面的后表面），使得异物不会沉积在 清洁构件和清洁目标表面之间的间隙，从而防止沉积的异物再次粘附到清洁目标表面。
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公开(公告)号：US07532834B2
公开(公告)日：2009-05-12
申请号：US10571939
申请日：2004-09-15
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）。
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公开(公告)号：US07199332B2
公开(公告)日：2007-04-03
申请号：US10567791
申请日：2004-08-10
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
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