Power supply circuit for a motor
    3.
    发明授权
    Power supply circuit for a motor 失效
    电机电源电路

    公开(公告)号:US5225751A

    公开(公告)日:1993-07-06

    申请号:US793550

    申请日:1991-11-18

    摘要: In a power supply circuit for a motor in which a power source line can be opened and closed by a first opening-closing device, a construction is adopted which has a electrically controllable second opening-closing device connected in parallel to the first opening-closing device, a comparator for comparing the voltage of the motor load side with a predetermined value, a controller for controlling the opening and closing of the second opening-closing device on the basis of a signal from the comparator, and a current limiter device provided in parallel to the second opening-closing device, whereby a rush current when the first opening-closing device is closed can be suppressed to thereby prevent the fluctuation of the source voltage and the deterioration of the contacts of the first opening-closing device.

    摘要翻译: 在其中电源线能够被第一开闭装置打开和关闭的电动机的电源电路中,采用具有与第一开闭并联连接的电可控制的第二开闭装置的结构 装置,用于将电动机负载侧的电压与预定值进行比较的比较器;控制器,用于根据来自比较器的信号控制第二开闭装置的打开和关闭;以及限流装置, 平行于第二开闭装置,由此能够抑制第一开闭装置闭合时的冲击电流,从而防止源电压的波动和第一开闭装置的触点的劣化。

    Driving circuit for semiconductor laser and image forming apparatus
using the same
    5.
    发明授权
    Driving circuit for semiconductor laser and image forming apparatus using the same 失效
    半导体激光器用驱动电路及使用其的成像装置

    公开(公告)号:US5519431A

    公开(公告)日:1996-05-21

    申请号:US125229

    申请日:1993-09-23

    摘要: An apparatus for generating a laser beam modulated on the basis of an information signal, which comprises a circuit for generating a first information signal, a circuit for generating a second information signal, independent of the first information signal, a circuit for driving a semiconductor laser on the basis of the first and the second information signals, wherein the driving circuit comprises first and second switching elements which operate supplementarily with each other, one of the first and second switching elements switches a drive current to the semiconductor laser, and wherein the first information signal is provided into a control terminal of the first switching element and the second information signal is provided into a control terminal of the second switching element.

    摘要翻译: 一种用于产生基于信息信号调制的激光束的装置,包括用于产生第一信息信号的电路,用于产生与第一信息信号无关的第二信息信号的电路,用于驱动半导体激光器的电路 基于第一信息信号和第二信息信号,其中驱动电路包括彼此补充地操作的第一和第二开关元件,第一和第二开关元件中的一个将驱动电流切换到半导体激光器,并且其中第一 信息信号被提供到第一开关元件的控制端子中,并且第二信息信号被提供到第二开关元件的控制端子中。

    Differential driving circuit for a semiconductor laser
    6.
    发明授权
    Differential driving circuit for a semiconductor laser 失效
    半导体激光器的差分驱动电路

    公开(公告)号:US5818503A

    公开(公告)日:1998-10-06

    申请号:US593902

    申请日:1996-01-30

    摘要: An apparatus for generating a laser beam modulated on the basis of an information signal, which comprises a circuit for generating a first information signal, a circuit for generating a second information signal, independent of the first information signal, a circuit for driving a semiconductor laser on the basis of the first and the second information signals, wherein the driving circuit comprises first and second switching elements which operate supplementarily with each other, one of the first and second switching elements switches a drive current to the semiconductor laser, and wherein the first information signal is provided into a control terminal of the first switching element and the second information signal is provided into a control terminal of the second switching element.

    摘要翻译: 一种用于产生基于信息信号调制的激光束的装置,包括用于产生第一信息信号的电路,用于产生与第一信息信号无关的第二信息信号的电路,用于驱动半导体激光器的电路 基于第一信息信号和第二信息信号,其中驱动电路包括彼此补充地操作的第一和第二开关元件,第一和第二开关元件中的一个将驱动电流切换到半导体激光器,并且其中第一 信息信号被提供到第一开关元件的控制端子中,并且第二信息信号被提供到第二开关元件的控制端子中。

    Image forming apparatus and image forming method
    8.
    发明授权
    Image forming apparatus and image forming method 失效
    图像形成装置及图像形成方法

    公开(公告)号:US06718146B2

    公开(公告)日:2004-04-06

    申请号:US10126683

    申请日:2002-04-22

    申请人: Tomohiro Nakamori

    发明人: Tomohiro Nakamori

    IPC分类号: G03G1500

    摘要: An image forming apparatus is provided which is capable of positively preventing a recording sheet from being wound around a conveying means that conveys the recording sheet. A high voltage power supply section applies voltage to feeding brushes disposed in contact with the surface of a pressurizing roller having an electrically conductive surface. A winding sensor is disposed in contact with the surface of the pressurizing roller and is located in a sheet passing area of the pressurizing roller. A CPU sets a threshold voltage to a value corresponding to the temperature of the pressurizing roller detected by a temperature sensor, and detects whether the recording sheet is wound around the pressurizing roller, based upon the set threshold voltage and voltage of the pressurizing roller in the sheet passing area detected by the winding sensor.

    摘要翻译: 提供一种图像形成装置,其能够积极地防止记录纸张缠绕在传送记录纸张的传送装置周围。 高压电源部分对与具有导电表面的加压辊的表面接触设置的馈电电刷施加电压。 卷绕传感器设置成与加压辊的表面接触并且位于加压辊的片材通过区域中。 CPU将阈值电压设定为与温度传感器检测到的加压辊的温度对应的值,并根据设定的加压辊的阈值电压和电压来检测记录纸是否卷绕在加压辊上 由绕线传感器检测到的片材通过面积。

    Image forming apparatus and process cartridge for applying an alternating current to a charging member or charging means for charging an image bearing member
    9.
    发明授权
    Image forming apparatus and process cartridge for applying an alternating current to a charging member or charging means for charging an image bearing member 有权
    用于向充电部件施加交流电的图像形成装置和处理盒或用于对图像承载部件充电的充电装置

    公开(公告)号:US06615002B2

    公开(公告)日:2003-09-02

    申请号:US09912556

    申请日:2001-07-26

    IPC分类号: C03G1500

    摘要: An image forming apparatus includes a process cartridge detachably mountable with respect to the main body of the apparatus. The process cartridge is provided with an image bearing member, a charger for charging the image bearing member, a power supply for applying an alternating current voltage to the charger, and a controller for variably controlling the alternating current supplied from the power supply to the charger in conformity with information about the use situation of the process cartridge. The process cartridge can also include an image bearing member, a charger for charging the image bearing member, the charger permitting an alternating current voltage to be applied thereto by a power supply, and a memory for storing therein information about the use situation of the process cartridge, and information of a plurality of preset control values for an alternating current supplied from the power supply to the charger to be variably controlled in conformity with the information.

    摘要翻译: 图像形成装置包括可相对于装置的主体可拆卸地安装的处理盒。 处理盒设置有图像承载部件,用于对图像承载部件充电的充电器,用于向充电器施加交流电压的电源以及用于可变地控制从电源向充电器供应的交流电的控制器 符合关于处理盒的使用情况的信息。 处理盒还可以包括图像承载部件,用于对图像承载部件充电的充电器,允许通过电源施加到其上的交流电压的充电器,以及用于在其中存储关于该过程的使用状况的信息的存储器 盒,以及从电源向充电器提供的交流电的多个预设控制值的信息,以便根据该信息被可变地控制。

    Image forming apparatus and high voltage power thereof
    10.
    发明授权
    Image forming apparatus and high voltage power thereof 有权
    图像形成装置及其高电压功率

    公开(公告)号:US07483644B2

    公开(公告)日:2009-01-27

    申请号:US11248152

    申请日:2005-10-13

    IPC分类号: G03G15/00

    摘要: An image forming apparatus including an AC high voltage power supply, a DC high voltage power supply, and a high voltage power supply apparatus, which outputs an output voltage at an output end by superposing an output of the AC high voltage power supply and an output of the DC high voltage power supply. The high voltage power supply apparatus has a positive peak detector detecting a positive peak of the voltage at an output end, and a negative peak detector detecting a negative peak of the voltage at an output end. An output voltage of at least one of the AC high voltage power supply and the DC high voltage power supply is controlled on the basis of the detection result of at least one of the positive peak detector and the negative peak detector. An output voltage of the AC high voltage power supply is controlled on the basis of the detection result of the positive peak detector, and an output voltage of the DC high voltage power supply is controlled on the basis of the detection result of the negative peak detector.

    摘要翻译: 一种图像形成装置,包括AC高压电源,DC高压电源和高压电源装置,其通过叠加AC高压电源的输出和输出端输出输出端的输出端的输出电压 的直流高压电源。 高压电源装置具有检测输出端的电压的正峰值的正峰值检测器和检测输出端的电压的负峰值的负峰值检测器。 基于正峰值检测器和负峰值检测器中的至少一个的检测结果来控制交流高压电源和直流高压电源中的至少一个的输出电压。 基于正峰值检测器的检测结果控制交流高压电源的输出电压,并根据负峰值检测器的检测结果来控制直流高压电源的输出电压 。