公开(公告)号：US20020024580A1

公开(公告)日：2002-02-28

申请号：US09930439

申请日：2001-08-16

Applicant: RICOH COMPANY, LTD.

Inventor： Shinji Kobayashi ,  Tadashi Shinohara ,  Kohji Oshikiri

IPC: G03G015/01

CPC classification number: H04N1/00238 ,  H04N1/00236 ,  H04N1/32 ,  H04N1/32502 ,  H04N1/32512 ,  H04N1/32518 ,  H04N1/506 ,  Y10S347/90

Abstract: A color image forming apparatus for forming a color image on a storage medium using a laser beam generated from a laser generating means includes a plurality of image data interfaces provided between the color image forming apparatus and a peripheral device, image data interface conversion means for converting each of the image data interfaces into an image data interface for the laser generating means, and a single control means for controlling a drive timing of the laser generating means, the control means controlling the drive timing of the laser generating means for each one of a plurality of colors based on image data input from the image interface conversion means.

Abstract translation: 使用从激光发生装置产生的激光束在存储介质上形成彩色图像的彩色图像形成装置包括设置在彩色图像形成装置和外围装置之间的多个图像数据接口，图像数据接口转换装置，用于转换 每个图像数据接口成为用于激光产生装置的图像数据接口，以及用于控制激光产生装置的驱动定时的单个控制装置，控制装置控制激光产生装置的驱动定时 基于从图像接口转换装置输入的图像数据的多种颜色。

公开(公告)号：US06347852B1

公开(公告)日：2002-02-19

申请号：US09460692

申请日：1999-12-14

Applicant: Liang-Chih Chen

Inventor： Liang-Chih Chen

IPC: B41J2005

CPC classification number: G06K15/02 ,  G06K15/12 ,  G06K15/1823 ,  G06K15/1851 ,  G06K15/1865 ,  Y10S347/90

Abstract: A method and system for simplifying required printer commands and facilitating print speed of both laser and inkjet printers is disclosed. When an operating system outputs a print page, a printer driving unit firstly estimates the time respectively consumed by applying the raster bitmap and high-level printer language approaches. Estimation of the printer driving unit is then routed into a print page processing unit for further processing. The print page is manipulated by using the raster bitmap approach in the print page processing unit when the time consumption of the print page estimated by using the raster bitmap approach is less than the other one. Otherwise, the print page is divided into a plurality of print bands for further processing. Complexity of the printer commands required for each print band is then estimated to judge whether the complexity is higher than a predetermined band threshold. All those print bands whose complexities are higher than the band threshold are processed to generate raster bitmap data firstly, and followed by encapsulating the data into printer commands before storing back to memory. All printer commands of the print bands are fetched from the memory and then printed via a printer engine after color matching and halftoning processing are performed for graphics and texts.

Abstract translation: 公开了一种用于简化所需打印机命令并促进激光和喷墨打印机的打印速度的方法和系统。 当操作系统输出打印页面时，打印机驱动单元首先通过应用光栅位图和高级打印机语言方法来估计消耗的时间。 然后将打印机驱动单元的估计路由到打印页面处理单元中用于进一步处理。 当通过使用光栅位图方法估计的打印页面的时间消耗小于另一个时，通过在打印页处理单元中使用光栅位图方法来操作打印页面。 否则，打印页面被分成多个打印带以便进一步处理。 然后估计每个打印频带所需的打印机命令的复杂性，以判断复杂度是否高于预定频带阈值。 处理复杂度高于频带阈值的所有打印频段，首先生成光栅位图数据，然后在存储回存储器之前将数据封装到打印机命令中。 打印带的所有打印机命令都从存储器中取出，然后通过打印机引擎进行打印，然后对图形和文本进行颜色匹配和半色调处理。

公开(公告)号：US6111593A

公开(公告)日：2000-08-29

申请号：US786611

申请日：1997-01-21

Applicant: Thomas A. Henderson ,  Peter A. Crean

Inventor： Thomas A. Henderson ,  Peter A. Crean

IPC: B41J2/52 ,  H04N1/50 ,  B41J2/385

CPC classification number: B41J2/52 ,  H04N1/506 ,  Y10S347/90

Abstract: A method for achieving multiple exposure levels for IOI (IMAGE-ON-IMAGE) xerography when imaging a second color through a first toner layer previously developed on the photoreceptive member. In the example illustrated the data from the previous image paths (magenta and yellow) is analyzed. If the signal indicates that a magenta or yellow bit is present, the cyan output bit information passes to the ROS unchanged, or at full intensity. If however, the magenta and yellow are not present, a modified pattern providing an appropriate reduced exposure signal is sent to the ROS. The process of laser attenuation is blended with halftoning logic to avoid image degradation due to the attenuation.

Abstract translation: 一种当通过先前在感光元件上显影的第一调色剂层对第二颜色进行成像时，实现IOI（IMAGE-ON-IMAGE）静电复印的多重曝光水平的方法。 在所示的示例中，分析来自先前图像路径（品红色和黄色）的数据。 如果信号表示存在品红色或黄色位，则青色输出位信息将以不变的方式传递到ROS，或以全强度传递。 然而，如果品红色和黄色不存在，则向ROS发送提供适当的减少曝光信号的修改图案。 激光衰减的过程与半色调逻辑混合，以避免由于衰减而导致的图像劣化。

公开(公告)号：US5856841A

公开(公告)日：1999-01-05

申请号：US740127

申请日：1996-10-24

Applicant: Koichiro Shinohara ,  Masahiro Takamatsu ,  Akira Ishii ,  Hideki Moriya ,  Kenji Ogi

Inventor： Koichiro Shinohara ,  Masahiro Takamatsu ,  Akira Ishii ,  Hideki Moriya ,  Kenji Ogi

IPC: B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G02B26/12 ,  B41J2/405

CPC classification number: B41J2/473 ,  G02B26/123 ,  Y10S347/90

Abstract: To form an exposed image with striking contrast on photosensitive material and form a high definition and high quality image, a first beam modulated according to an image signal and a second beam modulated according to an inverted image signal generated by inverting this image signal with smaller deelectrification effect than the first beam are synthesized on the photosensitive material.

Abstract translation: 为了在感光材料上形成具有显着对比度的曝光图像，并形成高分辨率和高品质的图像，根据图像信号调制的第一光束和根据通过以较小去电反转该图像信号产生的反转图像信号调制的第二光束 效果比第一光束在感光材料上合成。

公开(公告)号：US5826139A

公开(公告)日：1998-10-20

申请号：US720533

申请日：1996-09-30

Applicant: Aron Nacman ,  Roger W. Budnik ,  Guru B. Raj

Inventor： Aron Nacman ,  Roger W. Budnik ,  Guru B. Raj

IPC: G03G15/00 ,  H04N1/387 ,  H04N1/407

CPC classification number: H04N1/4076 ,  G03G15/5041 ,  H04N1/3871 ,  G03G2215/00042 ,  G03G2215/00054 ,  Y10S347/90

Abstract: A method and apparatus for reproducing high quality images using an electrophotographic printing machine is disclosed. More specifically, the present invention is used to change the location, shape and size of a process control patch. Process control patches may be used to improve the quality of an image prior to printing. The intensity of light reflected from the control patch is measured, and the measurements are used to change parameters such as magnitude of electrostatic charge, and toner concentration, before the latent image developed. Adjusting these parameters at this time will allow the printing apparatus to reproduce images having superior quality than previously available.

Abstract translation: 公开了一种使用电子照相印刷机再现高质量图像的方法和装置。 更具体地，本发明用于改变过程控制贴片的位置，形状和尺寸。 过程控制补丁可用于在打印之前提高图像的质量。 测量从控制贴片反射的光的强度，并且在潜像显影之前，使用测量来改变诸如静电电荷的大小和调色剂浓度的参数。 此时调整这些参数将允许打印设备再现具有优于以前可获得的质量的图像。

公开(公告)号：US5751332A

公开(公告)日：1998-05-12

申请号：US110228

申请日：1993-08-23

Applicant: Kyung-Young Lee

Inventor： Kyung-Young Lee

IPC: B41J2/45 ,  G06K15/12 ,  B41J2/47 ,  H04N1/23

CPC classification number: G06K15/1247 ,  B41J2/45 ,  Y10S347/90

Abstract: A circuit for generating strobe signals to one line light emitting diode arrays of an light emitting diode print head, comprises: a portion for generating a start signal in response to a clock signal, a start pulse, and a synchronization pulse of a central processing unit; a counter for generating a counter signal indicative of counts of the clock signals initiated in response to the start signal; a comparator for comparing the counter signal and strobe period selection signals indicative of a selected period of the strobe signals, and for generating a comparator signal indicative of the comparison; a clock controller for generating a gating clock controlling length of the strobe signals by latching the comparator signal; a signal output portion for generating individual ones of the strobe signals in response to strobe control signals, the strobe signals having lengths determined by the gating clock; and a strobe controller for generating the strobe control signals by latching the gating clock received from the signal output portion. Consequently, strobe signal generation is accomplished without the continuous control of the central processing unit.

Abstract translation: 一种用于向发光二极管打印头的一行发光二极管阵列产生选通信号的电路，包括：响应于中央处理单元的时钟信号，起始脉冲和同步脉冲产生起始信号的部分 ; 计数器，用于产生指示响应于起始信号而启动的时钟信号的计数的计数器信号; 比较器，用于比较指示选通周期的选通信号的计数器信号和选通周期选择信号，并用于产生指示比较的比较器信号; 时钟控制器，用于通过锁存比较器信号来产生控制选通信号长度的选通时钟; 信号输出部分，用于响应于选通控制信号产生各个选通信号，所述选通信号具有由门控时钟确定的长度; 以及选通控制器，用于通过锁存从信号输出部分接收的门控时钟来产生选通控制信号。 因此，在没有中央处理单元的连续控制的情况下实现选通信号生成。

公开(公告)号：US5355154A

公开(公告)日：1994-10-11

申请号：US996388

申请日：1992-12-23

Applicant: Jean-Michel Guerin

Inventor： Jean-Michel Guerin

IPC: B41J2/005 ,  G03G15/01 ,  H04N1/50 ,  B41J2/435

CPC classification number: B41J2/005 ,  G03G15/0152 ,  G03G15/0163 ,  H04N1/508 ,  Y10S347/90

Abstract: In a write white color xerographic system which builds up layers of color toner on a web prior to transfer to paper, the method of generating a toner mark on the belt on the first pass by use of the scanning laser, and of detecting that mark on subsequent passes to ensure registration of the first and subsequent passes. The marks are made on the photoreceptor slightly before and after the image area to indicate the area and shape of the image area, and are used in conjunction with ordinary start and end of scan detectors which are used to determine scan speed.

Abstract translation: 在写入白色静电复印系统中，在转印到纸之前在纸幅上形成彩色调色剂层，使用扫描激光器在第一次通过时在带上产生调色剂标记的方法，并且检测该标记 后续通行证，以确保第一次和后续通行证的登记。 在图像区域之前和之后，在感光体上形成标记以指示图像区域的面积和形状，并且与用于确定扫描速度的扫描检测器的普通开始和结束一起使用。

公开(公告)号：US5351074A

公开(公告)日：1994-09-27

申请号：US959555

申请日：1992-10-13

Applicant: Toshihiro Kadowaki ,  Masanori Sakai

Inventor： Toshihiro Kadowaki ,  Masanori Sakai

IPC: H04N1/387 ,  H04N1/46 ,  H04N1/50 ,  G03G15/01 ,  H04N1/23

CPC classification number: H04N1/387 ,  H04N1/46 ,  H04N1/508 ,  Y10S347/90

Abstract: There is disclosed an apparatus comprising: an input circuit for inputting at least one of the coded character information, coded figure information, and bit image information; a memory to store an image; an image developing circuit for developing the information input by the input circuit into the image memory with respect to one output color component; and an image forming circuit to form one output color component image in accordance with the value of the image data in the memory, wherein a color image can be formed by repeating the image development and the image formation with respect to a plurality of output color components.

Abstract translation: 公开了一种装置，包括：输入电路，用于输入编码字符信息，编码图形信息和位图信息中的至少一个; 用于存储图像的存储器; 图像显影电路，用于将由输入电路输入的信息相对于一个输出颜色分量显影到图像存储器中; 以及图像形成电路，用于根据存储器中的图像数据的值形成一个输出颜色分量图像，其中可以通过重复相对于多个输出颜色分量的图像显影和图像形成来形成彩色图像 。

公开(公告)号：US5327170A

公开(公告)日：1994-07-05

申请号：US498969

申请日：1990-03-26

Applicant: Yasuhito Suzuki ,  Koichiro Akimoto ,  Hajime Ohshima ,  Kazuyuki Honda ,  Yukio Isaka

Inventor： Yasuhito Suzuki ,  Koichiro Akimoto ,  Hajime Ohshima ,  Kazuyuki Honda ,  Yukio Isaka

IPC: G03G15/00 ,  G03G15/23 ,  G01D15/14

CPC classification number: G03G15/50 ,  G03G15/231 ,  Y10S347/90

Abstract: An image forming apparatus includes a print data input device for inputting print data, a processor for performing data-processing of the print data, and an output device for outputting the processed print data as image data to an image forming unit. The processor includes a first setting device for setting line direction data representing a line direction, a second setting device for setting character direction data representing character direction, and a third setting device for setting line feed direction data representing line feed direction. The processor determines a processing mode of the inputted print data on the basis of the line direction data, the character direction data, and the line feed direction data.

Abstract translation: 图像形成装置包括用于输入打印数据的打印数据输入装置，用于执行打印数据的数据处理的处理器，以及用于将经处理的打印数据作为图像数据输出到图像形成单元的输出装置。 该处理器包括用于设置表示线方向的线方向数据的第一设定装置，用于设定表示字符方向的字符方向数据的第二设定装置，以及用于设定表示换行方向的换行方向数据的第三设定装置。 处理器基于线方向数据，字符方向数据和换行方向数据来确定输入的打印数据的处理模式。

公开(公告)号：US5300960A

公开(公告)日：1994-04-05

申请号：US290002

申请日：1988-12-27

Applicant: Hieu T. Pham ,  Eric K. Zeise ,  Pin S. Tschang

Inventor： Hieu T. Pham ,  Eric K. Zeise ,  Pin S. Tschang

IPC: G06K15/12 ,  G06K15/00

CPC classification number: G06K15/1261 ,  Y10S347/90

Abstract: A non-impact dot printer such as an LED printer, records grey levels of each dot by pulse width modulating the exposure on-time for each LED. The on-time of each LED for each exposure is controlled by comparing a count, representing an exposure time, with a second time changing count. The time changing count changes in accordance with clock periods of varying periodicity that are determined in accordance with human perception response criteria. This allows for the need for fewer data bits to define grey scale and exposure correction information reducing the number of data lines otherwise required.

Abstract translation: 诸如LED打印机之类的非影响点打印机通过对每个LED的接通时间的脉冲宽度调制每个点的灰度级。 通过将表示曝光时间的计数与第二次更改计数进行比较来控制每个曝光的每个LED的导通时间。 时间变化计数根据根据人类感知响应标准确定的周期性变化的时钟周期而变化。 这允许需要更少的数据位来定义灰度级和曝光校正信息，减少否则需要的数据线的数量。