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    • 3. 发明授权
    • Printer optical scanning apparatus and color printer optical scanning
system
    • 打印机光学扫描仪和彩色打印机光学扫描系统
    • US6043484A
    • 2000-03-28
    • US129039
    • 1998-08-04
    • Sang-shin Park
    • Sang-shin Park
    • B41J2/435G02B26/12H01J3/14
    • G02B26/127
    • An optical scanning apparatus includes an optical scanning unit, a photodetector, a belt position identifying portion for counting a pulse maintenance time corresponding to the width of the pulse signal output from the photodetector in response to the input light and outputting the counted time, a scanning delay determining portion for outputting delay time information corresponding to the result of subtracting the pulse maintenance time from a set image scanning initialization delay during the time from the beginning of the pulse until image scanning is initialized, a scanning start instructing portion for outputting an image scanning start signal after counting the delay time from the end of the input pulse, and a scanning controlling portion for controlling the driving of the optical scanning unit such that scanning corresponding to image information is initialized by the optical scanning unit in synchronization with the image scanning start signal. A color printer optical scanning system wherein each of the optical scanning controllers of the other optical scanning apparatuses include a register for storing the delay time information output from the scanning delay determining portion, a scanning start instructing portion for counting the time corresponding to the delay time information output from the register from the end of the pulse signal output from the corresponding photodetector occurs and outputting an image scanning start signal, and a scanning controlling portion for controlling the driving of the optical scanning unit such that scanning corresponding to image information is initialized by the optical scanning unit in synchronization with the image scanning start signal. With this apparatus and system, an image in which constant marginal spaces are maintained on paper can be obtained, regardless of a degree of slipping of the photoreceptor belt.
    • 光学扫描装置包括光学扫描单元,光电检测器,带位置识别部分,用于响应于输入光计数对应于从光电检测器输出的脉冲信号的宽度的脉冲维持时间,并输出计数时间;扫描 延迟确定部分,用于在从脉冲开始到图像扫描初始化的时间期间从设置的图像扫描初始化延迟中输出与减去脉冲维持时间的结果相对应的延迟时间信息;扫描开始指令部分,用于输出图像扫描 计数从输入脉冲结束起的延迟时间之后的开始信号;以及扫描控制部分,用于控制光学扫描单元的驱动,使得与图像信息相对应的扫描由光学扫描单元与图像扫描开始同步地初始化 信号。 一种彩色打印机光学扫描系统,其中其他光学扫描装置的每个光学扫描控制器包括用于存储从扫描延迟确定部分输出的延迟时间信息的寄存器,用于对与延迟时间相对应的时间进行计数的扫描开始指令部分 从寄存器输出的信号从相应的光电检测器输出的脉冲信号结束时发生并输出图像扫描开始信号,以及扫描控制部分,用于控制光学扫描单元的驱动,使得对应于图像信息的扫描由 光学扫描单元与图像扫描开始信号同步。 利用该装置和系统,无论感光带的滑动程度如何,都可以获得在纸张上保持恒定的边缘空间的图像。
    • 6. 发明授权
    • Optical scanning system of printer and driving method thereof
    • 打印机光扫描系统及其驱动方法
    • US06429424B1
    • 2002-08-06
    • US09628292
    • 2000-07-28
    • Sang-shin Park
    • Sang-shin Park
    • H01J314
    • G02B26/127H04N1/053H04N1/1135H04N1/12H04N2201/02439H04N2201/0471H04N2201/04732H04N2201/04739H04N2201/04744H04N2201/04786H04N2201/04793H04N2201/04794
    • An optical scanning system of a printer includes an optical scanning unit including a light source, a rotating polygonal mirror having a plurality of mirror surfaces for deflecting light emitted from the light source toward a photoreceptor web, and a driving source for driving the rotating polygonal mirror. The optical scanning system further includes a mirror, a photodetector installed to receive light scanned by the optical scanning unit to a position off the photoreceptor, and a controller for controlling a scanning start point of image data for lines by the optical scanning unit by obtaining information on addresses of mirror surfaces of the rotating polygonal mirror while counting the number of pulse signals output from the photodetector corresponding to the light received thereby, and by applying a line scanning synchronization correction time corresponding to the mirror surface address information with respect to a light receiving termination point of the pulse signal, to correct a line scanning synchronization time according to the difference in the amount of light reflected from each mirror surface of the rotating polygonal mirror.
    • 打印机的光学扫描系统包括光学扫描单元,该光学扫描单元包括光源,具有多个镜面的旋转多面镜,用于将从光源发射的光朝向感光体网偏转;以及用于驱动旋转多面镜的驱动源 。 光学扫描系统还包括一个反射镜,一个光电检测器,被安装成将由光学扫描单元扫描的光接收到离开感光体的位置;以及控制器,用于通过光学扫描单元获取信息来控制用于线的图像数据的扫描开始点 同时对与从其接收的光相对应的从光电检测器输出的脉冲信号的数量进行计数,并且通过对相应于光接收的镜面地址信息应用行扫描同步校正时间,对旋转多面镜的镜面的地址进行计数 根据从旋转多面镜的每个镜面反射的光量的差来校正行扫描同步时间。
    • 7. 发明授权
    • Printer and method of correcting color registration error thereof
    • 打印机及其颜色配准误差校正方法
    • US06198490B1
    • 2001-03-06
    • US09430122
    • 1999-10-29
    • Yoon-seop EomSeung-deog AnNam-ryoung KimSang-shin ParkBeom-ro Lee
    • Yoon-seop EomSeung-deog AnNam-ryoung KimSang-shin ParkBeom-ro Lee
    • G03G1501
    • H04N1/506
    • A color printer capable of detecting and correcting color registration error. The printer includes a photoreceptor belt circulating along a path formed by a plurality of rollers; a plurality of optical scanning devices for scanning light toward the photoreceptor belt; a plurality of developing devices for supplying developing materials of different colors to the photoreceptor belt; a plurality of detectors for detecting part of light emitted from the optical scanning devices; an engine controller for controlling the driving of the optical scanning devices, the developing devices, and the rollers, based on received light output from the optical detectors, so that test patterns for each optical scanning device set to detect the color registration error between the optical scanning devices can be formed on the photoreceptor belt; a pattern position detector for detecting the positions of the test patterns formed from fixed positions through a developing process; and a color registration correction calculator for calculating a color registration error amount from the position information of the test patterns provided by the pattern position detector, and calculating color registration correction data from the calculated error amount and outputting the calculated correction data to the engine controller. In color registration error correction using the printer, the positions of electrostatic latent images, corresponding to test patterns formed on a photoreceptor belt by optical scanning devices, are detected by developing the electrostatic latent images with a single color. Therefore, a structure for measuring error amounts from the test patterns is simple, and the accuracy of measurement can be improved.
    • 一种能够检测和校正颜色配准误差的彩色打印机。 打印机包括沿着由多个辊形成的路径循环的感光带; 用于向感光体带扫描光的多个光学扫描装置; 用于向感光带提供不同颜色的显影材料的多个显影装置; 多个检测器,用于检测从所述光学扫描装置发射的光的一部分; 基于从光学检测器输出的接收光来控制光学扫描装置,显影装置和滚筒的驱动的发动机控制器,使得每个光学扫描装置的测试图案被设置为检测光学扫描装置 可以在感光带上形成扫描装置; 图案位置检测器,用于通过显影处理检测由固定位置形成的测试图案的位置; 以及颜色配准校正计算器,用于根据由图案位置检测器提供的测试图案的位置信息计算颜色配准误差量,并根据计算出的误差量计算颜色对准校正​​数据,并将计算的校正数据输出到发动机控制器。 在使用打印机的颜色配准误差校正中,通过用光学扫描装置形成在感光带上的测试图案的静电潜像的位置通过用单一颜色显影静电潜像来检测。 因此,用于测量来自测试图案的误差量的结构简单,可以提高测量精度。
    • 9. 发明申请
    • IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF
    • 图像处理装置及其控制方法
    • US20130021533A1
    • 2013-01-24
    • US13553323
    • 2012-07-19
    • Su-myoung LEESang-shin PARK
    • Su-myoung LEESang-shin PARK
    • H04N5/44
    • H04N5/7755H04N21/4331H04N21/4622H04N21/4722
    • An image processing apparatus and a control method thereof are provided. The image processing apparatus includes: a signal receiver which receives a broadcasting signal including first and second contents; a signal processor which processes the broadcasting signal received by the signal receiver; a storage unit; and a controller which receives the first and second contents of the processed broadcast signal from the signal processor and stores in the storage unit the first and second contents to be consecutively played, and consecutively plays the first and second contents in response to receiving a request for playing at least one of the first and second contents.
    • 提供了图像处理装置及其控制方法。 该图像处理装置包括:信号接收器,接收包括第一和第二内容的广播信号; 处理由信号接收器接收的广播信号的信号处理器; 存储单元; 以及控制器,其从所述信号处理器接收所处理的广播信号的第一和第二内容,并且在所述存储单元中存储要连续播放的所述第一和第二内容,并且响应于接收到对所述第一和第二内容的请求而连续播放所述第一和第二内容 播放第一和第二内容中的至少一个。