Image forming apparatus which adjusts illumination levels independently
for test samples and for originals
    13.
    发明授权
    Image forming apparatus which adjusts illumination levels independently for test samples and for originals 失效
    调整照射水平的图像形成装置独立于测试样品和原始数据

    公开(公告)号:US5164771A

    公开(公告)日:1992-11-17

    申请号:US675053

    申请日:1991-03-25

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0266

    摘要: An image forming apparatus includes a detector for measuring the surface potential of a photosensitive member on which an electrostatic latent image is formed and a controller which regulates image formation plural times in accordance with the measured surface potential based on the length of time between image formations. In another aspect, the image forming apparatus includes a light source and a setting device for manually setting the quantity of light therefrom between a maximum and minimum value. A test sample of a predetermined optical density is arranged to be illuminated by the light source so as to produce a test light for projection onto a recording medium. A detector detects an electrical surface condition of the test-lighted recording medium. In response to the detected electrical surface conditions, and a controller regulates the image formation in accordance with the detector. The light from the light source is adjusted so that illumination of the test sample assumes a standard value intermediate the maximum and minimum values, and so that illumination of an original assumes the value set by the setting device.

    摘要翻译: 图像形成装置包括用于测量其上形成有静电潜像的感光构件的表面电位的检测器,以及基于图像形成之间的时间长度,根据测量的表面电位多次调节图像形成的控制器。 另一方面,图像形成装置包括光源和用于从最大值和最小值手动设定其光量的设定装置。 预定的光密度的测试样品被布置成由光源照射,以产生用于投影到记录介质上的测试光。 检测器检测测试记录介质的电气表面状况。 响应于检测到的电气表面状况,并且控制器根据检测器调节图像形成。 调整来自光源的光,使得测试样本的照明采用在最大值和最小值之间的标准值,并且使原始照明取决于设置设置的值。

    Color image processing apparatus in which different color signals of
different colors are read into different memories at different rates
    14.
    发明授权
    Color image processing apparatus in which different color signals of different colors are read into different memories at different rates 失效
    彩色图像处理装置,其中将不同颜色的不同颜色信号以不同的速率读入不同的存储器

    公开(公告)号:US4673972A

    公开(公告)日:1987-06-16

    申请号:US586068

    申请日:1984-03-05

    CPC分类号: H04N1/486

    摘要: A color image processing system comprises a plurality of color image data generators each for generating color image data for different colors and a plurality of memories each for storing the color image data generated for each color by one of the color image data generators. A writing control device independently controls the speed at which color image data is written into respective ones of the plurality of memories. This control device includes an address counter for determining writing addresses of respective ones of the plurality of memories, a clock pulse generator, and a clock pulse control device for variably controlling the number of clock pulses supplied to the first address counter for determining the rate at which the writing addresses are determined. A read out device reads out the color image data stored in each of the memories and a recording device records the color image data for each color in response to output from the read out device. This color image processing system permits accurate registration of images reproduced on a single medium in each of the plurality of colors by independently adjusting the magnification of an image reproduced in each respective color. Thus complex and expensive optical elements, used in the past to adjust magnification of an image reproduced in each color, may be eliminated.

    摘要翻译: 彩色图像处理系统包括多个彩色图像数据生成器,每个彩色图像数据生成器用于生成用于不同颜色的彩色图像数据和多个存储器,每个存储器用于存储由彩色图像数据生成器之一为每种颜色生成的彩色图像数据。 写入控制装置独立地控制将彩色图像数据写入多个存储器中的相应数据的速度。 该控制装置包括用于确定多个存储器中的各个存储器的写入地址的地址计数器,时钟脉冲发生器和时钟脉冲控制装置,用于可变地控制提供给第一地址计数器的时钟脉冲数,以确定 确定写入地址。 读出装置读取存储在每个存储器中的彩色图像数据,并且记录装置响应于读出装置的输出记录每种颜色的彩色图像数据。 该彩色图像处理系统通过独立地调整以各个颜色再现的图像的放大率,可以准确地对多个颜色中的每一个中的单个介质上再现的图像进行注册。 因此,可以消除过去使用的用于调整每种颜色再现的图像的倍率的复杂和昂贵的光学元件。

    Image signal processing device
    15.
    发明授权
    Image signal processing device 失效
    图像信号处理装置

    公开(公告)号:US4667237A

    公开(公告)日:1987-05-19

    申请号:US491797

    申请日:1983-05-05

    IPC分类号: H04N1/403 H04N5/14

    CPC分类号: H04N1/403

    摘要: A binary digitizing apparatus in which the white and the black levels of the input signals are measured for determining a reference value, and thus determined reference value is used for binary digitizing the input signals.

    摘要翻译: 测量输入信号的白电平和黑电平以确定参考值的二进制数字化装置,并且因此确定的参考值用于对输入信号进行二进制数字化。

    Image processing apparatus
    16.
    发明授权
    Image processing apparatus 失效
    图像处理装置

    公开(公告)号:US4589034A

    公开(公告)日:1986-05-13

    申请号:US326269

    申请日:1981-12-01

    IPC分类号: H04N1/401 H04N1/40

    CPC分类号: H04N1/401

    摘要: An image processing apparatus has analog image signal generator converter for converting an analog image signal generated by said analog image generator to a digital image signal, a comparator for comparing said image signal with a predetermined reference, and a controller for controlling the image signal in accordance with an output of the comparator to maintain a level or a gain of the image signal at a constant level.

    摘要翻译: 图像处理装置具有模拟图像信号发生器转换器,用于将由所述模拟图像发生器产生的模拟图像信号转换为数字图像信号,比较器,用于将所述图像信号与预定参考值进行比较;以及控制器,用于根据图像信号 具有比较器的输出以将图像信号的电平或增益保持在恒定水平。

    Data communication system
    17.
    发明授权
    Data communication system 失效
    数据通信系统

    公开(公告)号:US4575846A

    公开(公告)日:1986-03-11

    申请号:US538741

    申请日:1983-10-03

    IPC分类号: H04L12/433 H04J3/26

    CPC分类号: H04L12/433

    摘要: A data communication system with plural terminals in which efficient data communication without collision can be ensured by transferring the right of communication from one station to another in a determined procedure and by detecting a station which has joined the system at an intermediate timing by means of a particular command.

    摘要翻译: 一种具有多个终端的数据通信系统,其中通过在确定的过程中将通信权从一个站传送到另一个站点,并且通过以下方式检测已经连接到系统的站点,可以确保无冲突的有效数据通信: 特定命令。

    Apparatus for forming an image on a recording member
    19.
    发明授权
    Apparatus for forming an image on a recording member 失效
    用于在记录部件上形成图像的装置

    公开(公告)号:US4484811A

    公开(公告)日:1984-11-27

    申请号:US329018

    申请日:1981-12-09

    IPC分类号: G03G15/00 G03G15/06 G03G15/30

    摘要: The image forming method is executed by projecting a light image on a rotatable recording member to consecutively form electrostatic latent images corresponding to the light image, developing the latent images, projecting a predetermined amount of light onto a non-imaged area present between two consecutive latent images on the recording member to form an electrostatic image, detecting potential of the electrostatic image, and controlling the development of the latent images next to the electrostatic image detected during the detection of the potential in response to the detection results. This method is performed in the image forming apparatus which includes a rotatable recording member, processing units for projecting a light image onto the recording member to consecutively form electrostatic latent images corresponding to the light image, a developer unit for developing the latent images, a voltage applying circuit for applying a voltage to the developer unit, a projecting unit for projecting a predetermined amount of light onto a non-imaged area present between two consecutive latent images on the recording member, a detector for detecting surface potential of the non-imaged area, and a controller for controlling the voltage applying circuit in response to detection output from the detector in the development of the latent image next to the non-imaged area in the developer unit.

    摘要翻译: 图像形成方法通过将光图像投射在可旋转的记录部件上来连续地形成与光图像相对应的静电潜像,显影潜像,将预定量的光投射到存在于两个连续的潜在的非成像区域之间 记录部件上的图像以形成静电图像,检测静电图像的电位,并且响应于检测结果控制在检测到电位期间检测到的静电图像旁边的潜像的显影。 该方法在包括可旋转记录部件的图像形成装置中进行,用于将光图像投影到记录部件上以连续形成与光图像相对应的静电潜像的处理单元,用于显影潜像的显影单元,电压 用于向显影剂单元施加电压的施加电路,用于将预定量的光投射到存在于记录构件上的两个连续潜像之间的非成像区域上的投影单元,用于检测非成像区域的表面电位的检测器 以及控制器,用于在显影单元中的非成像区域旁边的潜像的显影中响应于来自检测器的检测输出来控制电压施加电路。