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1. 发明授权

US08417137B2 Fixing device and image forming apparatus employing the fixing device 有权
标题翻译：固定装置和采用定影装置的成像装置
公开(公告)号：US08417137B2
公开(公告)日：2013-04-09
申请号：US12461314
申请日：2009-08-07
申请人： Yutaka Naitoh , Toshio Ogiso , Tamotsu Ikeda
发明人： Yutaka Naitoh , Toshio Ogiso , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2032
摘要： A fixing device includes a rotary fixing member, a counter member to contact the rotary fixing member, a first heater to heat the rotary fixing member, a driving unit to rotate the rotary fixing member, a temperature detector to detect a temperature of the rotary fixing member, and a contact-and-separation unit to switch between contact and separation states of the rotary fixing member relative to the counter member. In a temperature-raising operation, the driving unit causes the rotary fixing member to rotate when the temperature detector detects that the temperature of the rotary fixing member has reached a first setting temperature. The contact-and-separation unit causes the rotary fixing member in rotation and the counter member to contact each other when the temperature detector detects that the temperature of the rotary fixing member has reached a second setting temperature that is higher than the first setting temperature.
摘要翻译：定影装置包括旋转固定构件，与旋转固定构件接触的计数构件，用于加热旋转固定构件的第一加热器，旋转定影构件旋转的驱动单元，温度检测器，用于检测旋转固定件的温度构件和接触分离单元，以在旋转固定构件相对于计数构件的接触和分离状态之间切换。在升温动作中，当温度检测器检测出旋转固定部件的温度达到第一设定温度时，驱动部使旋转固定部件旋转。当温度检测器检测到旋转固定件的温度达到高于第一设定温度的第二设定温度时，接触分离单元使旋转固定部件旋转，并且相对部件彼此接触。

2. 发明申请

US20100034548A1 Fixing device and image forming apparatus employing the fixing device 有权
标题翻译：固定装置和采用定影装置的成像装置
公开(公告)号：US20100034548A1
公开(公告)日：2010-02-11
申请号：US12461314
申请日：2009-08-07
申请人： Yutaka Naitoh , Toshio Ogiso , Tamotsu Ikeda
发明人： Yutaka Naitoh , Toshio Ogiso , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2032
摘要： A fixing device includes a rotary fixing member, a counter member to contact the rotary fixing member, a first heater to heat the rotary fixing member, a driving unit to rotate the rotary fixing member, a temperature detector to detect a temperature of the rotary fixing member, and a contact-and-separation unit to switch between contact and separation states of the rotary fixing member relative to the counter member. In a temperature-raising operation, the driving unit causes the rotary fixing member to rotate when the temperature detector detects that the temperature of the rotary fixing member has reached a first setting temperature. The contact-and-separation unit causes the rotary fixing member in rotation and the counter member to contact each other when the temperature detector detects that the temperature of the rotary fixing member has reached a second setting temperature that is higher than the first setting temperature.
摘要翻译：定影装置包括旋转固定构件，与旋转固定构件接触的计数构件，用于加热旋转固定构件的第一加热器，旋转定影构件旋转的驱动单元，温度检测器，用于检测旋转固定件的温度构件和接触分离单元，以在旋转固定构件相对于计数构件的接触和分离状态之间切换。在升温动作中，当温度检测器检测出旋转固定部件的温度达到第一设定温度时，驱动部使旋转固定部件旋转。当温度检测器检测到旋转固定件的温度达到高于第一设定温度的第二设定温度时，接触分离单元使旋转固定部件旋转，并且相对部件彼此接触。

3. 发明申请

US20180107142A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180107142A1
公开(公告)日：2018-04-19
申请号：US15727792
申请日：2017-10-09
申请人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
发明人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2053 , G03G15/206
摘要： A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

4. 发明授权

US12025930B2 Fixing device including a pressure rotator setting an exit guide angle and image forming apparatus incorporating same 有权
公开(公告)号：US12025930B2
公开(公告)日：2024-07-02
申请号：US18063326
申请日：2022-12-08
申请人： Tamotsu Ikeda , Toshio Ogiso
发明人： Tamotsu Ikeda , Toshio Ogiso
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2064 , G03G15/2053 , G03G2215/2061
摘要： A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force adjuster, an entrance guide, an exit guide, and a guide. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The guide guides the pressure rotator in a direction inclined from a line connecting a rotation center of the fixing rotator and a rotation center of the pressure rotator toward downstream in a conveyance direction of the recording medium.

5. 发明授权

US10036987B2 Removable fixing device having a convex guide and image forming apparatus 有权
公开(公告)号：US10036987B2
公开(公告)日：2018-07-31
申请号：US15675827
申请日：2017-08-14
申请人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
发明人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2017 , G03G15/2032 , G03G15/2053 , G03G21/1685 , G03G2215/2035
摘要： A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.

6. 发明授权

US08874021B2 Media guide mechanism, fixing device and image forming apparatus incorporating same 有权
标题翻译：介质引导机构，固定装置和结合其的图像形成装置
公开(公告)号：US08874021B2
公开(公告)日：2014-10-28
申请号：US13535931
申请日：2012-06-28
申请人： Kohta Sakaya , Yasuhide Ohkubo , Tamotsu Ikeda , Yoshiharu Takahashi , Chikara Hiraoka , Toshio Ogiso
发明人： Kohta Sakaya , Yasuhide Ohkubo , Tamotsu Ikeda , Yoshiharu Takahashi , Chikara Hiraoka , Toshio Ogiso
IPC分类号： G03G15/20 , B65H5/36 , B65H5/06
CPC分类号： G03G15/2028 , B65H5/062 , B65H5/36 , B65H2402/24 , B65H2511/212 , B65H2515/81 , B65H2220/01 , B65H2220/08 , B65H2220/11
摘要： A mechanism for guiding a recording medium into a nip formed between a first rotary member subjected to heating, and a second rotary member pressed against the first rotary member includes a guide member and a biasing member. The guide member is disposed upstream from the nip to guide the recording medium therealong. The biasing member is connected to the guide member to mechanically bias the guide member. The guide member is subjected to a constant biasing force from the biasing member and to a pressure force from the recording medium. The pressure force is opposite the biasing force and variable with a stiffness of the recording medium being guided. The guide member is movable to different operational positions depending on the biasing and pressure forces acting thereon.
摘要翻译：用于将记录介质引导到形成在经受加热的第一旋转构件之间的辊隙中的机构和被压靠在第一旋转构件上的第二旋转构件包括引导构件和施力构件。引导构件设置在辊隙的上游，以在其上引导记录介质。偏置构件连接到引导构件以机械地偏置引导构件。引导构件受到来自偏压构件的恒定的偏压力和来自记录介质的压力。压力与偏压力相反，并且随着记录介质的刚度被引导而变化。引导构件可以根据作用在其上的偏压和压力而移动到不同的操作位置。

7. 发明授权

US11927900B2 Fixing device and image forming apparatus incorporating same 有权
公开(公告)号：US11927900B2
公开(公告)日：2024-03-12
申请号：US18147454
申请日：2022-12-28
申请人： Toshio Ogiso , Tamotsu Ikeda
发明人： Toshio Ogiso , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2053
摘要： A fixing device includes a fixing rotator, a pressure rotator, a pressure plate, a pressing force, an entrance guide, an exit guide, and a transmission. The pressure rotator presses the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The pressure plate rotates about a fulcrum to press the pressure rotator. The pressing force adjuster adjusts a pressing force of the pressure rotator. The entrance guide guides a recording medium entering the nip. The exit guide guides the recording medium ejected from the nip. The transmission transmits a displacement of the pressure plate to the entrance guide and the exit guide.

8. 发明授权

US10078300B2 Fixing device and image forming apparatus 有权
公开(公告)号：US10078300B2
公开(公告)日：2018-09-18
申请号：US15727792
申请日：2017-10-09
申请人： Masahiro Samei , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
发明人： Masahiro Samei , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2039 , G03G15/2053
摘要： A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

9. 发明申请

US20180067431A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180067431A1
公开(公告)日：2018-03-08
申请号：US15675827
申请日：2017-08-14
申请人： Shigeo NANNO , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
发明人： Shigeo NANNO , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2032 , G03G15/2053 , G03G2215/2035
摘要： A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.

10. 发明授权

US11703787B2 Fixing device and image forming apparatus incorporating same 有权
公开(公告)号：US11703787B2
公开(公告)日：2023-07-18
申请号：US17724028
申请日：2022-04-19
申请人： Toshio Ogiso , Tamotsu Ikeda
发明人： Toshio Ogiso , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2028 , G03G2215/2048
摘要： A fixing device includes a heater, a heating rotator, a nip formation rotator, and an entry guide. The entry guide guides each of a first recording medium having a predetermined length or more and a second recording medium having a length less than the predetermined length to the fixing nip. The entry guide includes a first and second entry guide portion. The first entry guide portion guides the first recording medium toward a harder one of the heating rotator and the nip formation rotator and has an opening. The second entry guide portion guides the second recording passing through the opening to the fixing nip along a reference line connecting an entry and exit of the fixing nip or guides the second recording medium from an area including a softer one of the heating rotator and the nip formation rotator with respect to the reference line to the fixing nip.

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