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    • 3. 发明申请
    • Image Forming Apparatus
    • 图像形成装置
    • US20120027436A1
    • 2012-02-02
    • US13071954
    • 2011-03-25
    • Tsuyoshi MARUYAMAMasahito HAMAYAKatsumi INUKAI
    • Tsuyoshi MARUYAMAMasahito HAMAYAKatsumi INUKAI
    • G03G15/02
    • G03G15/0291G03G2215/027
    • An image forming apparatus including: a plurality of photosensitive drums; a plurality of scorotron chargers provided for the plurality of photosensitive drums, respectively, a voltage application circuit commonly connected to the plurality of scorotron chargers, a plurality of wires provided for the plurality of scorotron chargers, respectively; a plurality of grid electrodes provided for the plurality of scorotron chargers, respectively; at least one of current detecting units provided for at least one of the plurality of grid electrodes, respectively, and at least one of the current detecting units detecting grid current which flows into at least one of the grid electrodes, respectively; and a control device configured to control the voltage application circuit such that at least one of the grid currents detected by at least one of the current detecting units become equal to or higher than a reference value.
    • 一种图像形成装置,包括:多个感光鼓; 分别为多个感光鼓设置的多个烧烤炉充电器,分别与多个烤火炉充电器共同连接的电压施加电路,分别为多个烤火炉充电器提供的多根电线; 多个栅极,分别设置在多个烤火炉充电器上; 至少一个电流检测单元分别为所述多个栅格电极中的至少一个提供,并且所述电流检测单元中的至少一个分别检测流入至少一个栅格电极的栅格电流; 以及控制装置,被配置为控制所述电压施加电路,使得由所述电流检测单元中的至少一个检测到的电网电流中的至少一个变为等于或高于参考值。
    • 4. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20120082470A1
    • 2012-04-05
    • US13073048
    • 2011-03-28
    • Katsumi INUKAITsuyoshi MARUYAMA
    • Katsumi INUKAITsuyoshi MARUYAMA
    • G03G15/02
    • G03G15/0283G03G15/0291
    • An image forming apparatus includes: a photoconductor; a charger configured to charge the photoconductor, the charger having a discharge wire and a grid; a charge-voltage applying device configured to generate charge voltage and apply the charge voltage to the discharge wire; and an abnormal-discharge detector provided between an output end portion of the charge-voltage applying device and the ground. The abnormal-discharge detector is configured to detect an abnormal discharge occurring in the charger by detecting an abnormal current passing via the grid and the ground upon occurrence of the abnormal discharge.
    • 图像形成装置包括:感光体; 配置为对感光体充电的充电器,充电器具有放电线和栅格; 充电电压施加装置,被配置为产生充电电压并将充电电压施加到放电线; 以及设置在充电电压施加装置的输出端部与地之间的异常放电检测器。 异常放电检测器被配置为通过检测在发生异常放电时通过电网和地面的异常电流来检测在充电器中发生的异常放电。
    • 6. 发明申请
    • POWER SUPPLY DEVICE PERFORMING VOLTAGE CONVERSION
    • 执行电压转换的电源装置
    • US20130170850A1
    • 2013-07-04
    • US13728500
    • 2012-12-27
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • G03G15/00H02M3/335
    • H02M3/33507G03G15/5004G03G15/80Y10S323/901
    • In a power supply device, the controller outputs a control signal specifying a voltage value. The voltage conversion unit converts a first voltage to a second voltage in response to a control signal specifying a voltage value output from the controller. The voltage conversion unit converts the first voltage to a start voltage, as the second voltage, in response to a first control signal specifying a start voltage value output from the controller and further converts the first voltage to a target voltage, as the second voltage, in response to a second control signal specifying a target voltage value output from the controller. A transition period of time is intervened between generation of the start voltage and generation of the target voltage during which the controller outputs a third control signal specifying the intermediate voltage value between the start voltage value and the target voltage value.
    • 在电源装置中,控制器输出指定电压值的控制信号。 电压转换单元响应于指定从控制器输出的电压值的控制信号,将第一电压转换为第二电压。 电压转换单元响应于指定从控制器输出的起始电压值的第一控制信号,将第一电压转换为起始电压作为第二电压,并将第一电压转换为目标电压作为第二电压, 响应于指定从控制器输出的目标电压值的第二控制信号。 在开始电压的产生和目标电压的产生之间的过渡时间段被控制器输出指定起始电压值和目标电压值之间的中间电压值的第三控制信号。
    • 7. 发明申请
    • HEATING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME
    • 加热装置和具有该装置的图像形成装置
    • US20120230744A1
    • 2012-09-13
    • US13414660
    • 2012-03-07
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • G03G15/20B23K13/08
    • G03G15/2039
    • A heating apparatus includes a switching circuit configured to switch on/off current-feeding from an AC power source to the heater, a temperature detector configured to detect a temperature of the heater, and a current-feed controller configured to execute a first current-feed mode of changing a current-feed ratio of current-feeding time to unit time by controlling switching of the switching circuit so that the temperature detected by the temperature detector falls within a target range. The current-feed controller executes a second current-feed mode of fixing the current-feed ratio to almost 100% or almost 0% during execution of the first current-feed mode in place of the first current-feed mode.
    • 一种加热装置,包括:开关电路,被配置为从AC电源向加热器供电;将配置为检测加热器的温度的温度检测器以及配置为执行第一电流馈送控制器的电流馈送控制器, 通过控制切换电路的切换使得由温度检测器检测到的温度落在目标范围内,将供电时间的电流进给比改变为单位时间的进给模式。 电流馈送控制器执行第二电流馈送模式,以在执行第一电流馈送模式期间将电流馈送比固定为几乎100%或几乎为0%,代替第一电流馈送模式。
    • 8. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20120134699A1
    • 2012-05-31
    • US13240114
    • 2011-09-22
    • Katsumi INUKAIMasahito HAMAYATsuyoshi MARUYAMA
    • Katsumi INUKAIMasahito HAMAYATsuyoshi MARUYAMA
    • G03G15/00
    • G03G15/161G03G2215/0141
    • An image forming apparatus is provided, which includes an image forming unit configured to form an image on a recording medium, a cleaned body that is an intended body to be cleaned, a cleaning member configured to clean at least attached matter, which is generated in image formation by the image forming unit, on the cleaned body, a backup member disposed to face the cleaning member across the cleaned body, a voltage supply unit configured to supply the backup member with a cleaning voltage having a polarity identical to a charge polarity of the attached matter, in an operation of cleaning the cleaned body, a detector configured to detect an electric quantity of the cleaning member when the cleaning voltage is supplied to the backup member by the voltage supply unit, and a controller configured to control the detected electric quantity of the cleaning member to be a predetermined value.
    • 提供了一种图像形成装置,其包括被配置为在记录介质上形成图像的图像形成单元,作为要清洁的物体的清洁体,被构造成清洁至少附着物的清洁构件, 通过图像形成单元在清洁体上形成的图像,配置成与清洁体对置地穿过清洁体的支撑构件;电压供给单元,被配置为向支撑构件提供具有与电池极性相同的极性的清洁电压 所述附件在清洁所述清洁体的操作中,所述检测器构造成当所述清洁电压通过所述电压供给单元供应到所述备用构件时检测所述清洁构件的电量;以及控制器,被配置为控制所检测到的电 清洁构件的数量为预定值。
    • 9. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20120051762A1
    • 2012-03-01
    • US13075697
    • 2011-03-30
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • Tsuyoshi MARUYAMAKatsumi INUKAI
    • G03G15/02
    • G03G15/0266G03G15/0291G03G15/55G03G15/553G03G2215/0141
    • An image forming apparatus includes: a photoconductor; a charger configured to charge the photoconductor, the charger including a discharge wire and a grid; a voltage applying circuit configured to generate charge voltage and apply the charge voltage to the discharge wire of the charger; a grid-current detector configured to detect a grid current passing through the grid; a controller configured to control the voltage applying circuit on the basis of a detection value detected by the grid-current detector so that the grid current is constant; an abnormal-discharge detector configured to detect an abnormal discharge occurring in the charger; and a suppression resistor configured to suppress abnormal discharge energy. The suppression resistor includes a first terminal and a second terminal. The first terminal is connected to the grid. The second terminal is connected to at least one of the grid-current detector and the abnormal-discharge detector.
    • 图像形成装置包括:感光体; 配置为对感光体充电的充电器,充电器包括放电线和栅格; 电压施加电路,被配置为产生充电电压并将充电电压施加到充电器的放电线; 电网电流检测器,被配置为检测通过电网的电网电流; 控制器,被配置为基于由电网电流检测器检测的检测值来控制电压施加电路,使得电网电流恒定; 异常放电检测器,被配置为检测充电器中发生的异常放电; 以及抑制电阻器,被配置为抑制异常放电能量。 抑制电阻器包括第一端子和第二端子。 第一个终端连接到网格。 第二端子连接到电网电流检测器和异常放电检测器中的至少一个。
    • 10. 发明申请
    • AC VOLTAGE DETECTING CIRCUIT AND IMAGE FORMING APPARATUS HAVING THE SAME
    • 交流电压检测电路和图像形成装置
    • US20130038318A1
    • 2013-02-14
    • US13569768
    • 2012-08-08
    • Katsumi INUKAI
    • Katsumi INUKAI
    • G01R19/18
    • G01R19/18H02M2001/0006
    • An AC voltage detecting circuit comprises: a first capacitor including a first electrode configured to connect to one end of an AC power supply, and a second electrode; a second capacitor including a first electrode configured to connect to the other end of the AC power supply, and a second electrode; a current-to-voltage converting circuit, which is connected in series between the second electrode of the first capacitor and the second electrode of the second capacitor, and which is connected to a reference potential, wherein the current-to-voltage converting circuit causes the AC current to pass through the current-to-voltage converting circuit when the AC current returns to the AC power supply, and converts an AC current output from the AC power supply into an detection AC voltage; and a voltage detecting unit, which detects an AC input voltage of the AC power supply, based on the detection AC voltage.
    • AC电压检测电路包括:第一电容器,包括被配置为连接到AC电源的一端的第一电极和第二电极; 第二电容器,包括被配置为连接到所述AC电源的另一端的第一电极和第二电极; 串联连接在第一电容器的第二电极和第二电容器的第二电极之间并连接到参考电位的电流 - 电压转换电路,其中电流 - 电压转换电路导致 当交流电流返回到交流电源时,交流电流通过电流 - 电压转换电路,并将从交流电源输出的交流电转换为检测交流电压; 以及电压检测单元,其基于所述检测AC电压检测所述AC电源的AC输入电压。