Light beam scanning apparatus which controls power and spot shape of
light beam
    1.
    发明授权
    Light beam scanning apparatus which controls power and spot shape of light beam 失效
    光束扫描装置,用于控制光束的光束和斑点形状

    公开(公告)号:US5959655A

    公开(公告)日:1999-09-28

    申请号:US653395

    申请日:1996-05-24

    摘要: A light beam scanning apparatus in which laser power and spot shape of an emitted laser beam are controlled, has a laser control signal generating part for changing a picture signal to a laser power control signal and a spot shape control signal, a laser power control current generating part which is driven by the laser power control signal, a spot shape control current generating part which is driven by the shape control signal, and a laser beam emission part for emitting a laser beam having a laser power and a spot shape which are controlled by the control signals via a commonly used light wave guiding part, wherein the control signal generating part generates or corrects the control signals based on at least one of the difference between the laser power of a beam to be emitted and a detected laser power, the difference between the spot shape of a beam to be emitted and a detected laser power, a detected temperature at the laser beam emission part, and an effective light emission pixel number.

    摘要翻译: 控制发射激光束的激光功率和斑点形状的光束扫描装置具有激光控制信号产生部分,用于将图像信号改变为激光功率控制信号和光斑形状控制信号,激光功率控制电流 由激光功率控制信号驱动的发光部分,由形状控制信号驱动的光斑形状控制电流产生部分,以及激光束发射部分,用于发射具有被控制的激光光焦度和光斑形状的激光束 通过所述控制信号经由通常使用的光波导部,其中,所述控制信号生成部基于所发射的光束的激光功率与所检测的激光功率的差异中的至少一个来生成或校正所述控制信号, 要发射的光束的光斑形状与检测到的激光功率之间的差异,激光束发射部分处的检测温度和有效发光像素 el号码。

    Electrophotographic image recording apparatus with photoreceptor
exposure control
    2.
    发明授权
    Electrophotographic image recording apparatus with photoreceptor exposure control 失效
    具有光感受器曝光控制的电子照相图像记录装置

    公开(公告)号:US5737008A

    公开(公告)日:1998-04-07

    申请号:US698160

    申请日:1996-08-07

    摘要: An electrophotographic image recording apparatus that forms an electrostatic latent image so that the uniformly charged surface of a photoreceptor is scanned for its exposure with a beam spot of a light beam generated according to image information, to discharge the surface of the photoreceptor up to a medium potential. The electrophotographic image recording apparatus includes a light beam generator capable of varying an amount of light beam and a light intensity distribution pattern of a beam spot on the surface of the photoreceptor, an intensity distribution pattern controller for controlling the light beam generator according to the image information of peripheral pixels, to vary the intensity distribution pattern of the beam spot on the surface of the photoreceptor, and a light beam output controller for controlling the light beam generator to put the exposure energy on pixels, exposed to the beam spots of intensity distribution patterns, at a predetermined value.

    摘要翻译: 一种电子照相图像记录装置,其形成静电潜像,使得根据图像信息产生的光束的光斑扫描感光体的均匀充电表面以进行曝光,以将感光体的表面排出到介质 潜在。 电子照相图像记录装置包括能够改变感光体表面上的光束的光束量和光束强度分布图案的光束发生器,用于根据图像控制光​​束发生器的强度分布图案控制器 周边像素的信息,以改变感光体表面上的光斑的强度分布图案;以及光束输出控制器,用于控制光束发生器将曝光能量放在像素上,暴露于强度分布的光束点 图案,以预定值。

    Image recording device and an image recording system
    7.
    发明授权
    Image recording device and an image recording system 失效
    图像记录装置和图像记录系统

    公开(公告)号:US07003241B1

    公开(公告)日:2006-02-21

    申请号:US09362126

    申请日:1999-07-28

    IPC分类号: G03G15/00

    CPC分类号: B41J2/473

    摘要: A multi-beam image recording device is capable of recording high-quality high-resolution images without positional errors by exposing test patterns for measuring positional errors of beam spots of each laser beam in main and subsidiary scanning directions, calculating the positional errors of beam spots using a correcting device, controlling the quantity of exposure according to the result of calculation, and thus correcting the positional errors in main and subsidiary scanning directions.

    摘要翻译: 多光束图像记录装置能够通过暴露用于测量主扫描和副扫描方向上的每个激光束的光斑的位置误差的测试图案来记录高质量的高分辨率图像而不发生位置误差,计算光束点的位置误差 使用校正装置,根据计算结果控制曝光量,从而校正主扫描方向和副扫描方向上的位置误差。

    Image recording apparatus for controlling image in high quality and
image quality control method thereof
    8.
    发明授权
    Image recording apparatus for controlling image in high quality and image quality control method thereof 失效
    用于高质量控制图像的图像记录装置和图像质量控制方法

    公开(公告)号:US5576811A

    公开(公告)日:1996-11-19

    申请号:US407516

    申请日:1995-03-16

    CPC分类号: G03G15/5062

    摘要: An image recording apparatus that records a visible image on a recording medium by successively entering image signals forming an image. The apparatus comprises a standard pattern detector detecting standard patterns from the input image signals, image density measuring device measuring density of an output signal, image quality judging device judging image quality of every standard pattern output of the image density measuring device, and process controller deciding process parameters on the basis of signals output of the image quality judging device before controlling image quality of the output signal using the process parameters. The apparatus therefore can save the toner and paper and control for high image quality.

    摘要翻译: 一种图像记录装置,通过连续地输入形成图像的图像信号,将可见图像记录在记录介质上。 该装置包括从输入图像信号中检测标准图案的标准图案检测器,测量输出信号的图像浓度测量装置,图像质量判断装置判断图像浓度测量装置的每个标准图案输出的图像质量,以及处理控制器判定 在使用该处理参数控制输出信号的图像质量之前,基于图像质量判断装置的信号输出的处理参数。 因此,该设备可以节省调色剂和纸张并控制高图像质量。

    Printer control system including white enlarged line memory for storing
expanded white print pixel signals and black enlarged line memory for
storing expanded black print pixel signals
    9.
    发明授权
    Printer control system including white enlarged line memory for storing expanded white print pixel signals and black enlarged line memory for storing expanded black print pixel signals 失效
    打印机控制系统包括用于存储扩展的白色打印像素信号的白色放大行存储器和用于存储扩展的黑色打印像素信号的黑色放大行存储器

    公开(公告)号:US5712963A

    公开(公告)日:1998-01-27

    申请号:US771272

    申请日:1996-12-20

    摘要: A printer control system for controlling a print characteristic of a printer for printing a print pixel signal synchronized to horizontal lines of an image. The print pixel signal has an arbitrary horizontal resolution and includes white print pixel signals representing white pixels of the image and black print pixel signals representing black pixels of the image. The printer control system controls the print characteristic of the printer in accordance with a type of the image and includes a white enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any white print pixel signal in the print pixel signal falling between two adjacent ones of the timing points and having a duration less than the predetermined time to have a duration equal to the predetermined time without expanding any portion of any black print pixel signal in the print pixel signal, and a black enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any black print pixel signal in the print pixel signal falling between two adjacent ones of the timing points and having a duration less than the predetermined time to have a duration equal to the predetermined time without expanding any portion of any white print pixel signal in the print pixel signal.

    摘要翻译: 一种打印机控制系统,用于控制用于打印与图像的水平线同步的打印像素信号的打印机的打印特性。 打印像素信号具有任意的水平分辨率,并且包括表示图像的白色像素的白色打印像素信号和表示图像的黑色像素的黑色打印像素信号。 打印机控制系统根据图像的类型来控制打印机的打印特性,并且包括用于接收打印像素信号的白色放大行存储器,并且在扩展任何部分之后将预定时间间隔开的定时点存储在打印像素信号 在打印像素信号中的任何白色打印像素信号落在两个相邻的定时点之间并且具有小于预定时间的持续时间以具有等于预定时间的持续时间,而不会扩展任何黑色像素信号的任何部分 打印像素信号和黑色放大线存储器,用于接收打印像素信号,并且在扩展在两个相邻像素信号之间的打印像素信号中的任何黑色打印像素信号的任何部分之后间隔了预定时间的定时点处存储打印像素信号 并且具有小于预定时间的持续时间等于该持续时间 预定时间,而不会扩展打印像素信号中的任何白色印刷像素信号的任何部分。

    Image printing apparatus using plurality of laser beams
    10.
    发明授权
    Image printing apparatus using plurality of laser beams 失效
    使用多个激光束的图像打印设备

    公开(公告)号:US06236425B1

    公开(公告)日:2001-05-22

    申请号:US09070769

    申请日:1998-05-01

    IPC分类号: B41J2435

    摘要: In order to realize edge smoothing in an image printing apparatus using a plurality of laser beams, commonality of a data processing circuit to the plurality of laser beams is attained by obtaining image data for the plurality of scanning lines in synchronism with a common scanning position of one of the plurality of laser beams and storing the image data into a common memory and generating laser modulating data for each of the laser beams; temporarily the laser modulating data for the other laser beams into FIFOS; using the laser modulating data in synchronism with the respective scanning positions of the plurality of laser beams to generate laser modulating signals for the respective laser beams in a PWM.

    摘要翻译: 为了在使用多个激光束的图像打印装置中实现边缘平滑,通过与多个激光束的共同扫描位置同步地获得多条扫描线的图像数据,获得数据处理电路对多个激光束的共同性 多个激光束中的一个并将图像数据存储到公共存储器中,并为每个激光束产生激光调制数据; 暂时将其他激光束的激光调制数据转换成FIFOS; 使用与多个激光束的各个扫描位置同步的激光调制数据,以在PWM中产生用于相应激光束的激光调制信号。