Heater controller, image forming apparatus, method for controlling heater
    4.
    发明授权
    Heater controller, image forming apparatus, method for controlling heater 有权
    加热器控制器,图像形成装置,加热器控制方法

    公开(公告)号:US08521049B2

    公开(公告)日:2013-08-27

    申请号:US13038517

    申请日:2011-03-02

    IPC分类号: G03G15/20

    CPC分类号: G03G15/80 G03G15/2039

    摘要: A heater controller performs on/off control of a plurality of heaters and includes a storage unit that stores therein a plurality of pattern sets. Each of the pattern sets includes a plurality of heater-on/off patterns for respectively controlling the heaters. The heater controller calculates a reference value representing an average of values of electric power supplied to the heater controller over a predetermined period of time; calculates, for each of the pattern sets, an output power value to be supplied to the heaters when the heaters are turned-on according to the heater-on/off patterns included in the pattern set; calculates, for each of the pattern sets, a difference between the reference value and the output power value; selects, from the pattern sets, one pattern set having a smallest difference; and performs on/off control of the heaters according to the heater-on/off patterns included in the pattern set thus selected.

    摘要翻译: 加热器控制器执行多个加热器的开/关控制,并且包括其中存储有多个图案组的存储单元。 每个图案组包括用于分别控制加热器的多个加热器开/关模式。 加热器控制器计算表示在预定时间段内提供给加热器控制器的电力值的平均值的参考值; 针对每个图案组计算当加热器根据包括在图案组中的加热器开/关模式接通时提供给加热器的输出功率值; 对于每个图案集合,计算参考值和输出功率值之间的差; 从图案集中选择具有最小差异的一个图案组; 并且根据包括在所选择的图案集中的加热器开/关模式来执行加热器的开/关控制。

    IMAGE FORMING APPARATUS AND HEATER CONTROL METHOD
    5.
    发明申请
    IMAGE FORMING APPARATUS AND HEATER CONTROL METHOD 有权
    图像形成装置和加热器控制方法

    公开(公告)号:US20100322656A1

    公开(公告)日:2010-12-23

    申请号:US12819461

    申请日:2010-06-21

    IPC分类号: G03G15/20

    CPC分类号: G03G15/80 G03G15/2039

    摘要: An image forming apparatus includes a halogen heater in a fixing unit; an AC source applying an alternating voltage to the halogen heater; a half-wave control unit that performs the heater half-wave control to control the halogen heater on the half-wavelength basis, according to a heater-on/off pattern set for each control cycle having a predetermined length; a heater-off-time measuring unit that measures heater-off period of time; a phase-control-execution determining unit that determines, based on the measured heater-off period of time, whether the heater phase control is to be performed on the alternating voltage, the phase control being performed by shifting phase of the alternating voltage; and a phase control unit that performs, when the phase control is determined to be performed, the phase control only for a period of time depending on the measured heater-off period of time after switch-on of the heater and before execution of the half-wave control.

    摘要翻译: 图像形成装置包括固定单元中的卤素加热器; 将交流电源施加到所述卤素加热器的交流电源; 根据对每个具有预定长度的控制周期设置的加热器开/关模式,执行加热器半波控制以半波长基准控制卤素加热器的半波控制单元; 加热器关闭时间测量单元,其测量加热器关闭时间段; 相位控制执行确定单元,基于所测量的加热器关闭时间段,确定是否对交流电压执行加热器相位控制,通过交流电压的相位移相执行相位控制; 以及相位控制单元,当相位控制被确定执行时,执行相位控制,该时间段取决于加热器接通之后的测量加热器关闭时间段,并且在执行半个时间之前 波控制。

    Fixing device, image forming apparatus, and heating control method
    8.
    发明授权
    Fixing device, image forming apparatus, and heating control method 有权
    固定装置,成像装置和加热控制方法

    公开(公告)号:US08532516B2

    公开(公告)日:2013-09-10

    申请号:US12098184

    申请日:2008-04-04

    申请人: Kiriko Chosokabe

    发明人: Kiriko Chosokabe

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039

    摘要: A heating unit is heated by supply of an alternate-current power. A heating control unit executes a phase control to supply the alternate-current power to the heating unit for an ON-width in at least a half-wave period of the alternate-current power. A storing unit stores therein parameters for calculating the ON width. The heating control unit calculates the ON width based on the parameters stored in the storing unit and executes the phase control using a calculated ON width.

    摘要翻译: 加热单元通过提供交流电源来加热。 加热控制单元执行相位控制,以在交流电力的至少半波周期内向加热单元提供交流电的宽度。 存储单元存储用于计算ON宽度的参数。 加热控制单元基于存储在存储单元中的参数来计算ON宽度,并使用计算的ON宽度执行相位控制。

    Heater control device, image forming apparatus, and computer program product
    9.
    发明授权
    Heater control device, image forming apparatus, and computer program product 有权
    加热器控制装置,图像形成装置和计算机程序产品

    公开(公告)号:US08530800B2

    公开(公告)日:2013-09-10

    申请号:US12881708

    申请日:2010-09-14

    IPC分类号: H05B1/02

    CPC分类号: G03G15/80 G03G15/2039

    摘要: A heater control device includes a temperature detector that detects a temperature of a heated object heated by a heater; an alternating-current power supply for applying an alternating current voltage to the heater; a turn-on ratio decision unit that determines a turn-on ratio of the heater based on the temperature and a target temperature; a turn-on pattern decision unit that determines a partial turn-on pattern, as the turn-on pattern of the heater, which is a pattern of a turn-on ratio higher than the determined turn-on ratio in terms of a control-period, and to which a partial turn-on instead of a full turn-on is allocated on a half-wavelength basis of the alternating current voltage within the control period based on the turn-on ratio of the heater; and a turn-on controller that controls turn-on of the heater based on the determined turn-on pattern.

    摘要翻译: 一种加热器控制装置,包括:温度检测器,其检测由加热器加热的被加热物体的温度; 用于向所述加热器施加交流电压的交流电源; 基于所述温度和目标温度确定所述加热器的接通比的导通比判定单元; 确定部分开启模式的开启模式决定单元,作为加热器的点亮模式,其是作为控制开关模式的导通比高于所确定的导通率的模式, 并且基于加热器的接通比,在控制周期内的交流电压的基于半波长的基础上分配部分导通而不是完全导通; 以及基于确定的开启模式来控制加热器的接通的导通控制器。

    Image forming apparatus and heater control method
    10.
    发明授权
    Image forming apparatus and heater control method 有权
    图像形成装置和加热器控制方法

    公开(公告)号:US08260165B2

    公开(公告)日:2012-09-04

    申请号:US12819461

    申请日:2010-06-21

    IPC分类号: G03G15/20

    CPC分类号: G03G15/80 G03G15/2039

    摘要: An image forming apparatus includes a halogen heater in a fixing unit; an AC source applying an alternating voltage to the halogen heater; a half-wave control unit that performs the heater half-wave control to control the halogen heater on the half-wavelength basis, according to a heater-on/off pattern set for each control cycle having a predetermined length; a heater-off-time measuring unit that measures heater-off period of time; a phase-control-execution determining unit that determines, based on the measured heater-off period of time, whether the heater phase control is to be performed on the alternating voltage, the phase control being performed by shifting phase of the alternating voltage; and a phase control unit that performs, when the phase control is determined to be performed, the phase control only for a period of time depending on the measured heater-off period of time after switch-on of the heater and before execution of the half-wave control.

    摘要翻译: 图像形成装置包括固定单元中的卤素加热器; 将交流电源施加到所述卤素加热器的交流电源; 根据对每个具有预定长度的控制周期设置的加热器开/关模式,执行加热器半波控制以半波长基准控制卤素加热器的半波控制单元; 加热器关闭时间测量单元,其测量加热器关闭时间段; 相位控制执行确定单元,基于所测量的加热器关闭时间段来确定是否对交流电压执行加热器相位控制,通过交流电压的相位移相来执行相位控制; 以及相位控制单元,当相位控制被确定执行时,执行相位控制,该时间段取决于加热器接通之后的测量的加热器关闭时间段,并且在执行半个时间之前 波控制。