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    • 6. 发明申请
    • Power supply apparatus and heating apparatus and image forming apparatus
    • 电源装置及加热装置及成像装置
    • US20060093388A1
    • 2006-05-04
    • US11255102
    • 2005-10-21
    • Takao KawazuAtsuya TakahashiMasataka MochizukiHiroshi Chihara
    • Takao KawazuAtsuya TakahashiMasataka MochizukiHiroshi Chihara
    • G03G15/20G03G15/00
    • G03G15/2039G03G15/5004G03G15/80
    • A period of a first edge, a voltage change in a first direction of a first pulse signal fed from a zero-crossing detecting circuit, is detected. A second edge, a voltage change in a second direction opposite to the first direction, is generated when a time period equal to half the period of the first edge has elapsed from the next first edge. In response to a second pulse signal generated from the first and second edges, phase control of power to be supplied to heating elements is performed by using triacs. In this manner, during power control using a signal from the zero-crossing detecting circuit as a trigger signal, is achieved stable power control which enables tracking even though the power supply frequency fluctuates, and which is impervious to the effect of the positive or negative polarity of an input power supply.
    • 检测第一沿的周期,从过零检测电路馈送的第一脉冲信号的第一方向上的电压变化。 当从下一个第一边缘经过等于第一边缘的周期的一半的时间周期时,产生第二边缘,在与第一方向相反的第二方向上的电压变化。 响应于从第一和第二边缘产生的第二脉冲信号,通过使用三端双向可控硅开关来执行要供给到加热元件的功率的相位控制。 以这种方式,在使用来自过零检测电路的信号的功率控制作为触发信号的情况下,实现稳定的功率控制,即使电源频率波动也能够跟踪,并且不受正或负的影响 输入电源的极性。
    • 7. 发明授权
    • Image forming apparatus and method of controlling memory thereof
    • 图像形成装置及其存储器的控制方法
    • US06708005B2
    • 2004-03-16
    • US10090148
    • 2002-03-05
    • Hiroshi Chihara
    • Hiroshi Chihara
    • G03G1500
    • G03G21/1882G03G15/553G03G15/556G03G21/1889G03G2221/1823
    • Information including a NewCartridgeBit indicating that a cartridge having an internal non-volatile memory is a new (unused) cartridge and information including a FirstInstallDate related to the NewCartridgeBit and the date of indicating first use of the cartridge have been recorded in the non-volatile memory of the cartridge. If an update command for updating the NewCartridgeBit has been issued, the NewCartridgeBit is updated and then the FirstInstallDate is updated if the FirstInstallDate is an initial value. If an update command for updating the FirstInstallDate has been issued, then, when the NewCartridgeBit is not an initial value, the FirstInstallDate is updated if it is the initial value. As a result, the conformity between the interrelated information the NewCartridgeBit and the FirstInstallDate can be maintained.
    • 包括NewCartridgeBit的信息指示具有内部非易失性存储器的盒是新的(未使用的)盒,并且包括与NewCartridgeBit相关的FirstInstallDate和指示盒的首次使用的日期的信息已被记录在非易失性存储器中 的墨盒。 如果发出了更新NewCartridgeBit的更新命令,则NewCartridgeBit将被更新,如果FirstInstallDate是初始值,则FirstInstallDate将被更新。 如果已经发出了更新FirstInstallDate的更新命令,那么当NewCartridgeBit不是初始值时,如果FirstInstallDate是初始值,则会更新FirstInstallDate。 因此,可以维护NewCartridgeBit和FirstInstallDate之间相关信息的一致性。