Imaging by laser beam scanning
    1.
    发明授权
    Imaging by laser beam scanning 失效
    激光束扫描成像

    公开(公告)号:US4853710A

    公开(公告)日:1989-08-01

    申请号:US936079

    申请日:1986-11-28

    摘要: A laser beam scanning system includes a laser for emitting a laser beam modulated with image information to be recorded and a deflecting device, such as polygon mirror, for deflecting the laser beam over a predetermined angle repetitively, so that the laser beam is scanned on a scanning surface, thereby an image is formed on the scanning surface. When a plurality of laser beams are used at the same time, the plurality of laser beams are arranged in an array inclined with respect to the scanning direction. In this case, a sync sensor generates a sync signal in response to a laser beam received in the first place. When a polygon mirror is so structured to have a reflecting surface which is defined by a curved surface having a predetermined radius of curvature, a f.theta. lens may be discarded. In this case, when a transparent layer is formed on this curved reflecting surface, no distortion in scanning speed is produced even without using any electrical correction. Besides, it is also preferable to control the intensity of laser beam so as to maintain the image density of a resultant image at constant.

    摘要翻译: 激光束扫描系统包括用于发射用待记录的图像信息调制的激光束的激光器和诸如多面镜的偏转装置,用于使激光束重复地偏转预定角度,使得激光束被扫描 扫描表面,从而在扫描表面上形成图像。 当同时使用多个激光束时,多个激光束被布置成相对于扫描方向倾斜的阵列。 在这种情况下,同步传感器响应于首先接收的激光束产生同步信号。 当多面镜被构造为具有由具有预定曲率半径的曲面限定的反射表面时,可以丢弃fθ透镜。 在这种情况下,当在该弯曲反射面上形成透明层时,即使不进行任何电校正,也不会产生扫描速度的变形。 此外,还优选控制激光束的强度,以便使得到的图像的图像浓度保持恒定。

    Electrophotographic apparatus comprising density sensor means
    2.
    发明授权
    Electrophotographic apparatus comprising density sensor means 失效
    包括密度传感器装置的电子照相设备

    公开(公告)号:US4277162A

    公开(公告)日:1981-07-07

    申请号:US57142

    申请日:1979-07-12

    IPC分类号: G03G15/00 G03G15/08

    摘要: One or more marks (34), (36) are provided on a non-image area of a platen (23) which supports an original document (16). Electrostatic images of the document (16) and mark (34) are formed on a photoconductive drum (12) and developed to form toner images. The toner image of the original document (16) is transferred to a copy sheet (21) which is fed into contact with the drum (12) by a roller (119) or belt (19). The toner image of the mark (34) is transferred to the roller (119) or belt (19) and the optical density thereof sensed by a photosensor (39). The toner density, transfer charge and other parameters are controlled in accordance with the sensed optical density. An auxiliary sensor (91) may be provided to sense the optical density of the toner image of the mark (34) on the drum (12) prior to transfer for improved parameter control.

    摘要翻译: 一个或多个标记(34),(36)设置在支撑原稿(16)的压板(23)的非图像区域上。 文件(16)和标记(34)的静电图像形成在感光鼓(12)上并显影以形成调色剂图像。 原稿(16)的调色剂图像被转印到通过辊(119)或带(19)与鼓(12)接触的复印纸(21)。 标记(34)的调色剂图像被转印到辊(119)或带(19),并且其光密度由光电传感器(39)感测。 调色剂密度,转印电荷和其他参数根据检测到的光密度进行控制。 可以提供辅助传感器(91)以在传送之前感测鼓(12)上的标记(34)的调色剂图像的光密度以改善参数控制。

    Image forming apparatus capable of changing dotting density
    3.
    发明授权
    Image forming apparatus capable of changing dotting density 失效
    能够改变点密度的图像形成装置

    公开(公告)号:US5194879A

    公开(公告)日:1993-03-16

    申请号:US658780

    申请日:1991-02-21

    CPC分类号: H04N1/4056 G06K15/1204

    摘要: An image forming apparatus includes a laser beam scanning unit for scanning a recording medium in synchronism with a writing clock signal so that a dotted image is formed on the recording medium, a counter for carrying out a count operation in synchronism with the writing clock signal so that one count value or a plurality of count values determining a scanning area is/are obtained, a first controller for activating or inactivating the laser beam scanning unit based on one or the plurality of count values, a dip switch unit for specifying a dotting density, a second controller for controlling the frequency of the writing clock signal and/or a speed of scanning; and a changing unit for changing one or the plurality of count values, which should be obtained by the counter, based on the dotting density specified by the dip switch unit, so that the position of the scanning area with respect to the recording medium is constant even if the frequency of the writing clock signal and/or the scanning speed are changed by the second controller.

    摘要翻译: 图像形成装置包括:激光束扫描单元,用于与写入时钟信号同步地扫描记录介质,使得在记录介质上形成点状图像;计数器,用于与写时钟信号同步地执行计数操作; 确定确定扫描区域的一个计数值或多个计数值,用于基于一个或多个计数值激活或者激活激光束扫描单元的第一控制器,用于指定点密度的dip开关单元 ,用于控制写入时钟信号的频率和/或扫描速度的第二控制器; 以及改变单元,用于基于由dip开关单元指定的点数密度来改变由计数器获得的一个或多个计数值,使得扫描区域相对于记录介质的位置是恒定的 即使第二控制器改变写入时钟信号的频率和/或扫描速度。

    Color electrostatic copying machine
    4.
    发明授权
    Color electrostatic copying machine 失效
    彩色静电复印机

    公开(公告)号:US4162843A

    公开(公告)日:1979-07-31

    申请号:US855926

    申请日:1977-11-30

    IPC分类号: G03G15/01

    CPC分类号: G03G15/0194 G03G2215/0119

    摘要: Three primary color toner images are transferred successively onto a copy sheet from three photoconductive drums. The copy sheet is successively moved into engagement with the drums in register with the toner images by an endless belt. Various transfer charging means are provided to electrostatically adhere the copy sheet to the belt and counteract an adverse accumulation of charge on the copy sheet caused by accumulation of toner substance thereon during the three successive transfer operations.

    摘要翻译: 三个原色调色剂图像从三个感光鼓连续转印到复印纸上。 复印纸通过环形带连续地移动到与鼓相配合的调色剂图像。 提供各种转印充电装置以将复印纸静电粘附到带上,并且抵抗在三次连续转印操作期间由其上的调色剂物质的累积引起的副本纸上的电荷的不利积累。

    Information processing apparatus, power source control method thereof, program thereof, and storage thereof
    5.
    发明授权
    Information processing apparatus, power source control method thereof, program thereof, and storage thereof 有权
    信息处理装置,其电源控制方法,程序及其存储

    公开(公告)号:US08862908B2

    公开(公告)日:2014-10-14

    申请号:US13168386

    申请日:2011-06-24

    IPC分类号: G06K7/10 G06F1/30

    CPC分类号: G06F1/30 G06K7/10207

    摘要: An information processing apparatus includes an information storage to store information indicating a state of the information processing apparatus; an information writing processor to write the information to the information storage; a main power source and an auxiliary power source to supply power to the information writing processor; and a discharge controller to control a discharge speed of the auxiliary power source. When a voltage output of the main power source becomes a reference voltage, the discharge controller switches a power source for the information writing processor from the main power source to the auxiliary power source, and then after completing information writing to the information storage by using the information writing processor and the auxiliary power source, the discharge controller controls the discharge speed of the auxiliary power source to decrease a voltage output of the auxiliary power source to a given voltage within a given time period.

    摘要翻译: 信息处理设备包括:信息存储器,用于存储指示信息处理设备的状态的信息; 信息写入处理器,用于将信息写入信息存储器; 主电源和辅助电源,用于向信息写入处理器供电; 以及用于控制辅助电源的排出速度的排出控制器。 当主电源的电压输出变为参考​​电压时,放电控制器将信息写入处理器的电源从主电源切换到辅助电源,然后在使用 信息写入处理器和辅助电源,放电控制器控制辅助电源的放电速度,以在给定时间段内将辅助电源的电压输出降低到给定的电压。

    INFORMATION PROCESSING APPARATUS, POWER SOURCE CONTROL METHOD OF INFORMATION PROCESSING APPARATUS, PROGRAM OF POWER SOURCE CONTROL METHOD, AND STORAGE OF PROGRAM
    6.
    发明申请
    INFORMATION PROCESSING APPARATUS, POWER SOURCE CONTROL METHOD OF INFORMATION PROCESSING APPARATUS, PROGRAM OF POWER SOURCE CONTROL METHOD, AND STORAGE OF PROGRAM 有权
    信息处理装置,信息处理装置的电源控制方法,电源控制方法程序和程序存储

    公开(公告)号:US20110320831A1

    公开(公告)日:2011-12-29

    申请号:US13168386

    申请日:2011-06-24

    IPC分类号: G06F1/26 G06F12/00

    CPC分类号: G06F1/30 G06K7/10207

    摘要: An information processing apparatus includes an information storage to store information indicating a state of the information processing apparatus; an information writing processor to write the information to the information storage; a main power source and an auxiliary power source to supply power to the information writing processor; and a discharge controller to control a discharge speed of the auxiliary power source. When a voltage output of the main power source becomes a reference voltage, the discharge controller switches a power source for the information writing processor from the main power source to the auxiliary power source, and then after completing information writing to the information storage by using the information writing processor and the auxiliary power source, the discharge controller controls the discharge speed of the auxiliary power source to decrease a voltage output of the auxiliary power source to a given voltage within a given time period.

    摘要翻译: 信息处理设备包括:信息存储器,用于存储指示信息处理设备的状态的信息; 信息写入处理器,用于将信息写入信息存储器; 主电源和辅助电源,用于向信息写入处理器供电; 以及用于控制辅助电源的排出速度的排出控制器。 当主电源的电压输出变为参考​​电压时,放电控制器将信息写入处理器的电源从主电源切换到辅助电源,然后在使用 信息写入处理器和辅助电源,放电控制器控制辅助电源的放电速度,以在给定时间段内将辅助电源的电压输出降低到给定的电压。