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    Image forming apparatus for fixing an image on a recording material and a current detection circuit therefor
    1.
    发明授权
    Image forming apparatus for fixing an image on a recording material and a current detection circuit therefor 有权
    用于将图像定影在记录材料上的图像形成装置及其电流检测电路

    公开(公告)号：US07630662B2

    公开(公告)日：2009-12-08

    申请号：US12203643

    申请日：2008-09-03

    申请人： Teruhiko Namiki ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Yasuhiro Shimura ,  Hiromitsu Kumada

    发明人： Teruhiko Namiki ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Yasuhiro Shimura ,  Hiromitsu Kumada

    IPC分类号： G03G15/20

    CPC分类号： G03G15/5004 ,  G03G15/2039 ,  G03G2215/00413 ,  G03G2215/00599 ,  G03G2215/00772 ,  G03G2215/00949 ,  G03G2215/0145 ,  G03G2215/2045

    摘要： The image forming apparatus includes a current detection circuit for detecting an input current from the commercial power supply to the apparatus, in which: when a current detected by the current detection circuit exceeds a predetermined value, a maximum current suppliable to a fixing portion is restricted; and when a temperature of the fixing portion falls below, in a situation where the maximum current suppliable to the fixing portion is restricted, the predetermined temperature lower than a control target temperature, a conveyance interval of a recording material conveyed to the fixing portion is extended. In the image forming apparatus, even when a consumption current of the image forming apparatus is increased during successive image formation, it is capable of controlling the consumption current so as not to exceed a maximum current of a commercial power supply, securing desired fixability, and minimizing decline of image forming performance.

    摘要翻译： 图像形成装置包括：电流检测电路，用于检测从商用电源到设备的输入电流，其中：当由电流检测电路检测到的电流超过预定值时，限制可用于固定部分的最大电流 ; 并且当固定部分的温度下降时，在可限制固定部分的最大电流的情况下，预定温度低于控制目标温度，传送到固定部分的记录材料的输送间隔延长 。 在图像形成装置中，即使在连续图像形成期间图像形成装置的消耗电流增加时，能够控制消耗电流，从而不超过商用电源的最大电流，确保期望的定影性，以及 最小化成像性能的下降。

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20090003868A1

    公开(公告)日：2009-01-01

    申请号：US12203643

    申请日：2008-09-03

    申请人： Teruhiko Namiki ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Yasuhiro Shimura ,  Hiromitsu Kumada

    发明人： Teruhiko Namiki ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Yasuhiro Shimura ,  Hiromitsu Kumada

    IPC分类号： G03G15/20

    CPC分类号： G03G15/5004 ,  G03G15/2039 ,  G03G2215/00413 ,  G03G2215/00599 ,  G03G2215/00772 ,  G03G2215/00949 ,  G03G2215/0145 ,  G03G2215/2045

    摘要： The image forming apparatus includes a current detection circuit for detecting an input current from the commercial power supply to the apparatus, in which: when a current detected by the current detection circuit exceeds a predetermined value, a maximum current suppliable to a fixing portion is restricted; and when a temperature of the fixing portion falls below, in a situation where the maximum current suppliable to the fixing portion is restricted, the predetermined temperature lower than a control target temperature, a conveyance interval of a recording material conveyed to the fixing portion is extended. In the image forming apparatus, even when a consumption current of the image forming apparatus is increased during successive image formation, it is capable of controlling the consumption current so as not to exceed a maximum current of a commercial power supply, securing desired fixability, and minimizing decline of image forming performance.

    摘要翻译： 图像形成装置包括：电流检测电路，用于检测从商用电源到设备的输入电流，其中：当由电流检测电路检测到的电流超过预定值时，限制可用于固定部分的最大电流 ; 并且当固定部分的温度下降时，在可限制固定部分的最大电流的情况下，预定温度低于控制目标温度，传送到固定部分的记录材料的输送间隔延长 。 在图像形成装置中，即使在连续图像形成期间图像形成装置的消耗电流增加时，能够控制消耗电流，从而不超过商用电源的最大电流，确保期望的定影性，以及 最小化成像性能的下降。

    Image forming apparatus
    4.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US08331819B2

    公开(公告)日：2012-12-11

    申请号：US12794404

    申请日：2010-06-04

    申请人： Daizo Fukuzawa ,  Tooru Imaizumi ,  Mahito Yoshioka ,  Noriaki Sato ,  Munehito Kurata ,  Kuniaki Kasuga ,  Yoshimichi Ikeda ,  Hiromitsu Kumada ,  Satoru Koyama ,  Toshifumi Kitamura ,  Atsunobu Mori

    发明人： Daizo Fukuzawa ,  Tooru Imaizumi ,  Mahito Yoshioka ,  Noriaki Sato ,  Munehito Kurata ,  Kuniaki Kasuga ,  Yoshimichi Ikeda ,  Hiromitsu Kumada ,  Satoru Koyama ,  Toshifumi Kitamura ,  Atsunobu Mori

    IPC分类号： G03G15/20

    CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

    摘要： The image forming apparatus includes a fixing portion, a temperature detection element, and a power control portion. The power control portion is capable of setting a first power supply control mode for supplying power according to the detected temperature for each one control cycle, a second power supply control mode for supplying power according to the detected temperature for each one control cycle and a third power supply control mode for supplying predetermined power, and switches, immediately before a leading edge of the recording material enters the fixing portion, a state of supplying the power in the first power supply control mode to a state of supplying the power in the second power supply control mode, and then switches the state of supplying the power in the second power supply control mode to a state of supplying the power in the third power supply control mode.

    摘要翻译： 图像形成装置包括固定部，温度检测元件和功率控制部。 功率控制部能够根据每个控制周期的检测温度设定用于供电的第一电源控制模式，用于根据每个控制周期的检测温度供电的第二电源控制模式和第三电源控制模式 用于提供预定功率的电源控制模式，并且在紧接在记录材料的前沿进入固定部分之前切换将第一电源控制模式中的电力提供给提供第二电力的状态的状态 电源控制模式，然后将在第二电源控制模式中的电力供应状态切换到在第三电源控制模式下供电的状态。

    Image forming apparatus controlling power to a heating unit forming a fixing nip portion with a pressure roller through which a recording sheet is conveyed to fix a toner image thereon
    5.
    发明授权
    Image forming apparatus controlling power to a heating unit forming a fixing nip portion with a pressure roller through which a recording sheet is conveyed to fix a toner image thereon 失效
    图像形成装置控制加热单元的功率，该加热单元通过压力辊形成定影夹持部分，通过该压力辊传送记录纸以将调色剂图像定影在其上

    公开(公告)号：US08649698B2

    公开(公告)日：2014-02-11

    申请号：US12706918

    申请日：2010-02-17

    申请人： Teruhiko Namiki ,  Hiromitsu Kumada

    发明人： Teruhiko Namiki ,  Hiromitsu Kumada

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2039

    摘要： The image forming apparatus includes an image forming unit, a fixing part and a controller controlling power to be supplied to the heating unit so as to keep the temperature of the heating unit at a control target temperature. When the fixing process is ended, in a standby-mode, the supply of power to the heating unit is started to keep the temperature of the heating unit at the control target temperature, and the start time of the supply of power to the heating unit is set to a time when the temperature of the heating unit is lowered to a predetermined temperature lower than the control target temperature, thereby reducing the power consumption of the image forming apparatus in the standby-mode.

    摘要翻译： 图像形成装置包括图像形成单元，固定部和控制供给到加热单元的电力的控制器，以将加热单元的温度保持在控制目标温度。 当定影处理结束时，在待机模式下，开始向加热单元供电，以使加热单元的温度保持在控制目标温度，并且向加热单元供电的开始时间 被设定为当加热单元的温度降低到低于控制目标温度的预定温度的时间，从而降低了处于待机模式的图像形成装置的功耗。

    FIXING APPARATUS
    6.
    发明申请
    FIXING APPARATUS 有权
    固定装置

    公开(公告)号：US20100322657A1

    公开(公告)日：2010-12-23

    申请号：US12792017

    申请日：2010-06-02

    申请人： Hiromitsu Kumada ,  Teruhiko Namiki ,  Atsunobu Mori

    发明人： Hiromitsu Kumada ,  Teruhiko Namiki ,  Atsunobu Mori

    IPC分类号： G03G15/20

    CPC分类号： G03G15/5004 ,  G03G15/2039

    摘要： A fixing apparatus allows harmonic noise and flicker noise caused by alternating current to be reduced. To accomplish this, the fixing apparatus has a power supply unit that supplies AC power from a commercial power supply to a heater, a temperature detection element that detects the temperature of the heater, a setting unit that sets a duty ratio for providing power to the heater such that the temperature detected by the temperature detection element maintains a target temperature, and a control unit that controls the power supply unit such that an average power duty ratio of a single cycle equals the power duty ratio based on the detected temperature, where a single cycle is three or more full waves of the commercial power supply, there being three or more power duty ratios per one half wave of the commercial power supply in a single cycle.

    摘要翻译： 定影装置允许降低由交流电引起的谐波噪声和闪烁噪声。 为了实现这一点，定影装置具有将商用电源的交流电力提供给加热器的电源单元，检测加热器的温度的温度检测元件，设定用于向加热器供电的功率的占空比的设定单元 加热器，使得由温度检测元件检测到的温度保持目标温度;以及控制单元，其控制电源单元，使得单个周期的平均功率占空比基于检测到的温度等于功率占空比，其中 单个周期是商业电源的三个或更多个全波，在单个周期中，每个商业电源的每个半波都有三个或更多的功率占空比。

    Fixing apparatus
    7.
    发明授权
    Fixing apparatus 有权
    固定装置

    公开(公告)号：US08244150B2

    公开(公告)日：2012-08-14

    申请号：US12792017

    申请日：2010-06-02

    申请人： Hiromitsu Kumada ,  Teruhiko Namiki ,  Atsunobu Mori

    发明人： Hiromitsu Kumada ,  Teruhiko Namiki ,  Atsunobu Mori

    IPC分类号： G03G15/20

    CPC分类号： G03G15/5004 ,  G03G15/2039

    摘要： A fixing apparatus allows harmonic noise and flicker noise caused by alternating current to be reduced. To accomplish this, the fixing apparatus has a power supply unit that supplies AC power from a commercial power supply to a heater, a temperature detection element that detects the temperature of the heater, a setting unit that sets a duty ratio for providing power to the heater such that the temperature detected by the temperature detection element maintains a target temperature, and a control unit that controls the power supply unit such that an average power duty ratio of a single cycle equals the power duty ratio based on the detected temperature, where a single cycle is three or more full waves of the commercial power supply, there being three or more power duty ratios per one half wave of the commercial power supply in a single cycle.

    摘要翻译： 定影装置允许降低由交流电引起的谐波噪声和闪烁噪声。 为了实现这一点，定影装置具有将商用电源的交流电力提供给加热器的电源单元，检测加热器的温度的温度检测元件，设定用于向加热器供电的功率的占空比的设定单元 加热器，使得由温度检测元件检测到的温度保持目标温度;以及控制单元，其控制电源单元，使得单个周期的平均功率占空比基于检测到的温度等于功率占空比，其中 单个周期是商业电源的三个或更多个全波，在单个周期中，每个商业电源的每个半波都有三个或更多的功率占空比。

    IMAGE FORMING APPARATUS
    8.
    发明申请
    IMAGE FORMING APPARATUS 失效
    图像形成装置

    公开(公告)号：US20100215391A1

    公开(公告)日：2010-08-26

    申请号：US12706918

    申请日：2010-02-17

    申请人： Teruhiko Namiki ,  Hiromitsu Kumada

    发明人： Teruhiko Namiki ,  Hiromitsu Kumada

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2039

    摘要： The image forming apparatus includes an image forming unit, a fixing part and a controller controlling power to be supplied to the heating unit so as to keep the temperature of the heating unit at a control target temperature, wherein when the fixing process is ended, in the standby-mode, the supply of power to the heating unit is started to keep the temperature of the heating unit at the control target temperature, and a start timing of the supply of power to the heating unit is set to a timing when the temperature of the heating unit is lowered to a predetermined temperature lower than the control target temperature. By the virtue of the present invention, it is possible to reduce the power consumption of the image forming apparatus in the standby-mode.

    摘要翻译： 图像形成装置包括图像形成单元，固定部分和控制供给到加热单元的功率的控制器，以将加热单元的温度保持在控制目标温度，其中当定影处理结束时， 开始待机模式，开始向加热单元供电，以使加热单元的温度保持在控制目标温度，并且向加热单元供电的开始定时被设定为温度 的加热单元降低到比控制目标温度低的预定温度。 借助于本发明，可以降低处于待机模式的图像形成装置的功耗。