Image forming apparatus with pulse width modulated laser driver
    1.
    发明授权
    Image forming apparatus with pulse width modulated laser driver 失效
    具有脉宽调制激光驱动器的图像形成装置

    公开(公告)号:US5742323A

    公开(公告)日:1998-04-21

    申请号:US13803

    申请日:1993-02-04

    申请人: Satoru Fukushima

    发明人: Satoru Fukushima

    CPC分类号: H04N1/4005 H04N1/40037

    摘要: An image forming apparatus which can form gray-scale images comprises a pulse width modulation device for outputting a pulse width modulation signal according to image data, a light emitting device for emitting modulated light in response to the pulse width modulation signal outputted from the pulse width modulation device, a detecting device for detecting quantity of the modulated light, a current control device for controlling, at a time when the light emitting device emits modulated light continuously, current to be supplied to the light emitting device in accordance with the quantity of light detected by the detecting device, and a condition control device for controlling a condition of the pulse width modulation device according to the quantity of light detected by the detecting device at a time when the light emitting device emits the modulated light according to the pulse width modulation signal.

    摘要翻译: 可以形成灰度图像的图像形成装置包括用于根据图像数据输出脉宽调制信号的脉宽调制装置,响应于从脉冲宽度输出的脉宽调制信号发射调制光的发光装置 调制装置,用于检测调制光量的检测装置;电流控制装置,用于在发光装置连续发射调制光时控制根据光量提供给发光装置的电流 由检测装置检测的条件控制装置,以及条件控制装置,用于根据在发光装置根据脉冲宽度调制发射调制光时的检测装置检测到的光量来控制脉宽调制装置的状态 信号。

    Image forming apparatus having control means for controlling image
forming condition
    2.
    发明授权
    Image forming apparatus having control means for controlling image forming condition 失效
    图像形成装置具有用于控制图像形成条件的控制装置

    公开(公告)号:US5305060A

    公开(公告)日:1994-04-19

    申请号:US52531

    申请日:1993-04-29

    申请人: Satoru Fukushima

    发明人: Satoru Fukushima

    IPC分类号: G03G15/00 G03G15/01 G03G15/02

    摘要: An image forming apparatus includes an electrophotographic photosensitive member exhibiting non-linear relation between charge amount thereof and a potential of an electrostatic latent image formed thereon; a developing device for developing the electrostatic latent image; a latent image forming condition setting device for automatically setting the latent image forming condition in accordance with an ambient condition; the setting device including an input device for inputting information relating to a target latent image potential preset in accordance with the ambient condition; wherein when the latent image forming condition is determined on the basis of the non-linear property which is stored, a latent image is actually formed on the photosensitive member with charging conditions which are away in opposite detections from a charging condition calculated from the ambient condition, and a relation between the charge amount of the photosensitive member and the potential of the electrostatic latent image is determined by line approximation on the basis of measurement in the actual latent image formation, and then the charge amount is determined from the linear approximation.

    摘要翻译: 图像形成装置包括电荷感光构件,其电荷量与形成在其上的静电潜像的电位呈非线性关系; 用于显影静电潜像的显影装置; 潜像形成条件设定装置,用于根据环境条件自动设定潜像形成条件; 所述设定装置包括用于输入与根据所述环境条件预设的目标潜像电位有关的信息的输入装置; 其中,当根据所存储的非线性特性来确定潜像形成条件时,在从环境条件计算出的充电条件下与相反检测距离的充电条件实际形成在感光部件上的潜像 ,并且基于实际潜像形成中的测量,通过线性近似来确定感光构件的电荷量与静电潜像的电位之间的关系,然后根据线性近似来确定电荷量。

    Electrophotographing apparatus with first and second charge devices
    4.
    发明授权
    Electrophotographing apparatus with first and second charge devices 失效
    具有第一和第二充电装置的电子照相装置

    公开(公告)号:US5512983A

    公开(公告)日:1996-04-30

    申请号:US267902

    申请日:1994-07-06

    CPC分类号: G03G21/0094 G03G21/00

    摘要: This invention relates to an electrophotography apparatus with a photosensitive body, first charge devices for performing a first charge process to form an image on the photosensitive body, a transfer charger for transferring the image formed on the photosensitive body onto a transfer material, and potential applying device for setting the photosensitive body at a predetermined potential by simultaneously performing a second charge process having the same polarity as a polarity of the first charge process and a full-surface exposure process on the photosensitive body, after the image is transferred by the transfer charger and before the first charge process is performed by the first charge device.

    摘要翻译: 本发明涉及具有感光体的电子摄影装置,用于执行第一充电处理以在感光体上形成图像的第一充电装置,用于将形成在感光体上的图像转印到转印材料上的转印充电器,以及电位施加 用于通过在通过转印充电器传送图像之后同时执行与第一充电处理的极性相同极性的第二充电处理和感光体上的全表面曝光处理来将感光体设置在预定电位的装置 并且在由第一充电装置执行第一充电处理之前。

    Anti-skid brake system for wheeled vehicle
    5.
    发明授权
    Anti-skid brake system for wheeled vehicle 失效
    轮式车辆防滑制动系统

    公开(公告)号:US5364175A

    公开(公告)日:1994-11-15

    申请号:US13426

    申请日:1993-02-04

    CPC分类号: B60T8/17636

    摘要: An anti-skid brake system for a wheeled vehicle including speed sensors for detecting each speed of road wheels of the vehicle and for producing an electric signal indicative of the detected speed of the road wheels, an electronic control apparatus arranged to be applied with the electric signal from the speed sensors for producing a control signal in accordance with conditions of a travel road of the vehicle in braking operation, and an electrically operated actuator arranged to be activated under control of the control apparatus for controlling a hydraulic braking pressure applied to each brake cylinder of the road wheels in response to the control signal, wherein an acceleration speed of the road wheels is calculated in response to the electric signal from the speed sensors, a stepped portion on the travel road is detected by determination of the fact that the detected speed of the road wheels becomes higher than a predetermined reference speed within a predetermined time immediately after activation of the actuator and that the calculated acceleration speed of the road wheels becomes smaller than a predetermined negative value and larger than a predetermined positive value within the predetermined time, and the actuator is deactivated upon detection of the stepped portion on the travel road.

    摘要翻译: 一种用于轮式车辆的防滑制动系统,包括用于检测车辆的车轮速度的速度传感器和用于产生指示车轮检测速度的电信号;电子控制装置,被布置成施加电力 来自用于在制动操作中根据车辆的行驶道路的条件产生控制信号的速度传感器的信号;以及电动致动器,其被布置成在用于控制施加到每个制动器的液压制动压力的控制装置的控制下被启动 响应于控制信号的车轮的气缸,其中响应于来自速度传感器的电信号计算车轮的加速速度,通过确定检测到的事实来检测行驶道路上的台阶部分 在预定时间内,车轮的速度变得高于预定的基准速度 y,并且所计算出的车轮加速度在预定时间内变得小于预定的负值并且大于预定的正值,并且在检测到行驶道路上的阶梯部分时致动器被停用 。

    Image processing method and apparatus for achieving tone reproduction suited to the image
    6.
    发明授权
    Image processing method and apparatus for achieving tone reproduction suited to the image 失效
    用于实现适合于图像的色调再现的图像处理方法和装置

    公开(公告)号:US06546131B1

    公开(公告)日:2003-04-08

    申请号:US08440879

    申请日:1995-05-15

    IPC分类号: G03F308

    CPC分类号: H04N1/6027 H04N1/4074

    摘要: Digital image data corresponding to an original read in by a CCD is stored in a page memory in pixel units, and a CPU reads the stored image data and creates a histogram. For an original having many high-density portions, an image is formed using a LOG conversion table which generates density data that enables reproduction of the tonality of the high-density portions. For an original which is comparatively faint, an image is formed using a LOG conversion table which generates density data that assures tone reproduction up to the maximum density of the original even if high-density portions cannot be reproduced. As a result, tone reproduction suited to the original image can be realized at all times.

    摘要翻译: 与由CCD读取的原稿相对应的数字图像数据以像素为单位存储在页面存储器中,CPU读取存储的图像数据并创建直方图。 对于具有许多高密度部分的原稿,使用生成能够再现高密度部分的色调的浓度数据的LOG转换表形成图像。 对于相对微弱的原稿,使用LOG转换表形成图像,该LOG转换表生成密度数据,即使高密度部分不能被再现,也能确保色调再现达到原稿的最大浓度。 结果,可以始终实现适合于原始图像的色调再现。

    Anti-skid control system for rear wheels
    7.
    发明授权
    Anti-skid control system for rear wheels 失效
    后轮防滑控制系统

    公开(公告)号:US5447364A

    公开(公告)日:1995-09-05

    申请号:US298970

    申请日:1994-09-02

    CPC分类号: B60T8/17616 B60T8/50

    摘要: The invention is directed to an arrangement for controlling a braking force applied to each of road wheels of a vehicle depending upon a braking condition, with a hydraulic braking pressure supplied to each of the wheel brake cylinders through an actuator. The actuator is controlled by a braking force controller into which output signals of wheel speed sensors are fed. The hydraulic braking pressure applied to each of the wheel brake cylinders is controlled by the braking force controller in accordance with each wheel speed. And, it is determined whether the vehicle is turning or not. If the vehicle is turning, the hydraulic braking pressure in a wheel brake cylinder operatively connected to one of the rear road wheels positioned at the outer side is controlled such that a decreasing operation of the pressure is restrained for at least a predetermined time period.

    摘要翻译: 本发明涉及一种用于根据制动条件控制施加到车辆的每个车轮的制动力的装置,其中通过致动器向每个车轮制动缸提供液压制动压力。 执行器由制动力控制器控制,其中馈送有车轮速度传感器的输出信号。 施加到每个车轮制动缸的液压制动压力由制动力控制器根据每个车轮速度控制。 并且,确定车辆是否转向。 如果车辆正在转动,则可操作地连接到位于外侧的后轮之一的车轮制动缸中的液压制动压力被控制为使得压力的降低操作被抑制至少预定的时间段。

    Anti-skid control system for driven wheels
    8.
    发明授权
    Anti-skid control system for driven wheels 失效
    用于驱动轮的防滑控制系统

    公开(公告)号:US5401081A

    公开(公告)日:1995-03-28

    申请号:US13085

    申请日:1993-02-03

    摘要: The invention is directed to an arrangement for controlling a braking force applied to each of driven wheels and non-driven wheels depending upon a braking condition, with a hydraulic braking pressure supplied to each of wheel brake cylinders through an actuator. The actuator is controlled by the braking force controller into which output signals of wheel speed sensors are fed. The braking force controller is arranged to control the hydraulic braking pressure supplied to each of the wheel brake cylinders. When one driven wheel is under the anti-skid control, it is determined whether a difference speed between the driven wheels is greater than a predetermined value. If it is determined that the difference speed is greater than the predetermined value, the actuator is actuated to restrain the hydraulic braking pressure from being supplied to the wheel brake cylinder operatively connected to the other driven wheel, e.g., to hold the hydraulic braking pressure supplied to the wheel brake cylinder, or to reduce a rate of increase of the hydraulic braking pressure.

    摘要翻译: 本发明涉及一种用于根据制动条件控制施加到每个从动轮和非从动轮的制动力的装置,其中通过致动器向每个车轮制动缸提供液压制动压力。 执行器由制动力控制器控制,其中馈送有车轮速度传感器的输出信号。 制动力控制器被布置成控制供应到每个车轮制动缸的液压制动压力。 当一个从动轮处于防滑控制下时,确定从动轮之间的差速是否大于预定值。 如果确定差速度大于预定值,则致动器被致动以限制液压制动压力被供应到可操作地连接到另一个从动轮的车轮制动缸,例如以保持供应的液压制动压力 到车轮制动缸,或者降低液压制动压力的增加率。

    Image forming apparatus having means for preventing toner deposit on
photosensitive member
    9.
    发明授权
    Image forming apparatus having means for preventing toner deposit on photosensitive member 失效
    图像形成装置具有防止调色剂沉积在感光构件上的装置

    公开(公告)号:US5194901A

    公开(公告)日:1993-03-16

    申请号:US718287

    申请日:1991-06-20

    CPC分类号: G03G15/0131 G03G2215/0177

    摘要: An image forming apparatus includes a movable photosensitive member; a toner image forming device for forming a toner image on the photosensitive member; a transfer device for electrostatically transferring the toner image from the photosensitive member to a transfer material at a transfer position; and a transfer material carrying member for carrying the transfer material to feed the transfer material to the transfer position. The transfer device transfers the image while the transfer material is on the transfer material carrying member, and after the image is transferred, the transfer material having the toner image transferred thereon and carried on the transfer material carrying member is contacted to the photosensitive member. There is also provided a charger for charging the photosensitive member, wherein at least a part of the photosensitive member making the contact is charged by the charger in a period between its passage through the transfer position and the contact, so as to be given an electric potential at which the toner image forming device does not deposit the toner to the photosensitive member.

    摘要翻译: 图像形成装置包括可动光敏元件; 用于在感光构件上形成调色剂图像的调色剂图像形成装置; 用于将调色剂图像从感光构件静电转印到转印位置处的转印材料的转印装置; 以及用于承载转印材料以将转印材料供给到转印位置的转印材料承载构件。 转印装置在转印材料在转印材料承载部件上传送图像,并且在图像转印之后,具有转印在其上并承载在转印材料承载部件上的调色剂图像的转印材料与感光部件接触。 还提供了一种用于对感光构件充电的充电器,其中使感光构件的至少一部分在通过转印位置和接触之间的期间由充电器充电,从而被赋予电 调色剂图像形成装置不将调色剂沉积到感光构件的电位。

    Image forming apparatus
    10.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US06314251B1

    公开(公告)日:2001-11-06

    申请号:US09488776

    申请日:2000-01-21

    IPC分类号: G03G1500

    摘要: An image forming apparatus in which each of first and second image forming device is in contact with surfaces of first and second image bearing members from which no after-transfer residual toner is removed includes a rotating charging member contacting first and second image bearing members, and a developing unit for developing an electrostatic image on the image bearing member and rotation controlling device rotates the second image bearing member and the charging member of the second image forming device during image formation only with the first image forming device.

    摘要翻译: 一种图像形成装置,其中第一和第二图像形成装置中的每一个与第一和第二图像承载部件的表面接触,第一和第二图像承载部件不从其移除转印后残留调色剂,包括接触第一和第二图像承载部件的旋转充电部件, 用于在图像承载部件上显影静电图像的显影单元和旋转控制装置仅在第一图像形成装置的图像形成期间使第二图像承载部件和第二图像形成装置的充电部件旋转。