公开(公告)号：US07983606B2

公开(公告)日：2011-07-19

申请号：US12391391

申请日：2009-02-24

申请人： Myong-hun Cho

发明人： Myong-hun Cho

IPC分类号： G03G15/01 ,  B41J2/385 ,  G01D15/06

CPC分类号： G03G15/0131 ,  G03G15/168 ,  G03G2215/0161 ,  G03G2215/1623

摘要： A transfer belt driving control method and transfer belt driving control apparatus for color registration correction. The color registration correction method and apparatus performs the color registration correction by setting a pattern forming section, in which patterns for the color registration correction are able to be formed, and a non-pattern forming section, in which the patterns are not able to be formed, on a transfer belt in which the patterns are formed, performing the color registration correction by driving the transfer belt at a first speed in the pattern forming section, and driving the transfer belt at a second speed, which is faster than the first speed, in the non-pattern forming section.

摘要翻译： 一种转印带驱动控制方法和用于颜色对准校正​​的转印带驱动控制装置。 颜色配准校正方法和装置通过设置能够形成用于颜色配准校正的图案的图案形成部以及不能够形成图案的非图案形成部来执行颜色配准校正 在形成图案的转印带上形成，通过在图案形成部中以第一速度驱动转印带来进行色彩配准校正，并以比第一速度快的第二速度驱动转印带 ，在非图案形成部分中。

公开(公告)号：US20100178069A1

公开(公告)日：2010-07-15

申请号：US12654972

申请日：2010-01-11

申请人： Yong Ho You ,  Hae Seog Jo ,  Myong Hun Cho

发明人： Yong Ho You ,  Hae Seog Jo ,  Myong Hun Cho

IPC分类号： G03G15/01

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0145 ,  G03G2215/0161 ,  G03G2215/2025

摘要： Disclosed herein are an image forming apparatus and a color registration method thereof. The color registration method includes checking a change in a status of an image forming apparatus, selecting color registration patterns having a different length according to the status change, and performing color registration by printing the color registration patterns having the different length onto a transfer belt.

摘要翻译： 本文公开了一种图像形成装置及其着色方法。 颜色配准方法包括：检查图像形成装置的状态的变化，根据状态变化选择具有不同长度的彩色配准图案，以及通过将具有不同长度的彩色配准图案打印到转印带上来执行彩色配准。

公开(公告)号：US20080145079A1

公开(公告)日：2008-06-19

申请号：US11953132

申请日：2007-12-10

申请人： Myong-hun CHO

发明人： Myong-hun CHO

IPC分类号： G03G15/10

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0138 ,  G03G2215/0161

摘要： An image forming apparatus includes a transport unit comprising a transport belt which transports a printing medium in a transport direction along a transport path, an image forming unit which transfers toner to the printing medium to form an image, a density evaluation unit which is provided on the transport path of the transport belt and evaluates a density of the image formed by the image forming unit, and a controller which controls the image forming unit to form a test image which has a length in a transport direction that is determined by a position deflection of the transport belt, controls a characteristic of the image forming unit based on a density evaluation of the test image, and controls the transport unit to make the transporting speed of the transport belt a predetermined value or less during the density evaluation of the test image by the density evaluation unit.

摘要翻译： 图像形成装置包括：传送单元，包括沿传送路径沿传送方向传送打印介质的传送带;将调色剂传送到打印介质以形成图像的图像形成单元;密度评估单元，设置在 输送带的输送路径，评价由图像形成单元形成的图像的浓度，以及控制器，其控制图像形成单元，以形成测试图像，所述测试图像的输送方向上的长度由位置偏移确定 根据测试图像的密度评估来控制图像形成单元的特性，并且在测试图像的密度评估期间控制传送单元使传送带的传送速度为预定值或更小 通过密度评估单元。

公开(公告)号：US20110149321A1

公开(公告)日：2011-06-23

申请号：US12926929

申请日：2010-12-17

申请人： Myong-hun Cho ,  Hyung-ho Lee

发明人： Myong-hun Cho ,  Hyung-ho Lee

IPC分类号： G06F3/12

CPC分类号： H04N1/00923 ,  G03G15/502 ,  G03G15/5087 ,  G03G15/5091 ,  G03G2215/00109 ,  G06F3/1215 ,  G06F3/1258 ,  G06F3/128 ,  H04N1/00225 ,  H04N1/00915 ,  H04N1/32106 ,  H04N2201/0094

摘要： A function performing method of an image forming apparatus which includes at least one function and is connected to at least one host apparatus, the method including: setting a resources table corresponding to an assignment of resources to at least one function of the image forming apparatus; storing the set resources table; receiving a job command to perform the at least one function; assigning resources to the input function according to the set resources table; performing the function by using the assigned resources, and the function including at least one of scan, copy, print, fax transmission and reception and direct print functions. With this, an image forming apparatus forms a user-defined resources table assigning resources in consideration of a user environment and improves user' satisfaction.

摘要翻译： 一种图像形成装置的功能执行方法，其包括至少一个功能并连接到至少一个主机装置，所述方法包括：将对应于资源分配的资源表设置为图像形成装置的至少一个功能; 存储集资源表; 接收作业命令以执行所述至少一个功能; 根据设置的资源表将资源分配给输入功能; 通过使用分配的资源来执行功能，并且该功能包括扫描，复印，打印，传真发送和接收以及直接打印功能中的至少一个。 由此，图像形成装置形成用户定义资源表，考虑用户环境来分配资源，提高用户的满意度。

公开(公告)号：US20070103499A1

公开(公告)日：2007-05-10

申请号：US11584570

申请日：2006-10-23

申请人： Myong-hun Cho

发明人： Myong-hun Cho

IPC分类号： B41J29/393

CPC分类号： G03G15/0131 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0161

摘要： A color registration apparatus and method capable of performing color registration without errors regardless of concentration of a developing agent is provided. The color registration apparatus determines a light emitting intensity irradiating onto a registration mark and a minimum light receiving intensity with which the registration mark is identified according to the concentration of the developing agent. The color registration apparatus includes a mark forming unit forming a concentration mark for each color and forming a registration mark for each color in response to a color registration control signal, a mark sensing unit sensing the concentration mark by emitting a plurality of first emitted lights comprising different intensities and sensing the registration mark by emitting second emitted lights, an examining unit comparing the intensities of first sensed lights with a predetermined reference value and generating the color registration control signal in response to the comparison results, a calculating unit that calculates the intensity of the second emitted light using the intensities of the plurality of first emitted lights and the intensities of the plurality of first sensed lights in condition that the intensities of second sensed light are greater than a predetermined value and a color registration unit performing color registration using the intensity of the second sensed light than a predetermined threshold value, wherein the first sensed light is a light reflected from the concentration mark, and the second sensed light reflected from the registration mark.

摘要翻译： 提供一种能够无差异地显影剂的浓度进行彩色配准的颜色配准装置和方法。 颜色配准装置根据显影剂的浓度确定照射到配准标记上的发光强度和识别对准标记的最小光接收强度。 彩色配准装置包括标记形成单元，其形成每个颜色的浓度标记并响应颜色对准控制信号形成每种颜色的对准标记;标记感测单元，通过发射多个第一发射光来感测浓度标记，包括 不同的强度，并通过发射第二发射光来感测对准标记;检查单元，将第一感测光的强度与预定参考值进行比较，并响应于比较结果产生颜色登记控制信号;计算单元， 在第二感测光的强度大于预定值的条件下，使用多个第一发射光的强度和多个第一感测光的强度的第二发射光，并且颜色对准单元使用强度 的第二感觉l 其中所述第一感测光是从所述浓度标记反射的光，并且所述第二感测光从所述对准标记反射。

公开(公告)号：US20060267921A1

公开(公告)日：2006-11-30

申请号：US11431016

申请日：2006-05-10

申请人： Hyo-jin Kim ,  Myong-hun Cho

发明人： Hyo-jin Kim ,  Myong-hun Cho

IPC分类号： G09G3/36

CPC分类号： G06K15/02 ,  G06K15/005 ,  G06K15/186

摘要： Provided are an apparatus for and method of forming an image according to a brightness distribution of image data. The method includes detecting a brightness distribution of an image data unit that represents image data of a page unit; determining whether the image of the image data unit is formed or not according to the detected brightness distribution; stopping the image formation for the image data unit if the image formation is not formed; and executing the image formation for the image data unit if the image formation is determined. Therefore, toner waste generated when an image of excessively low brightness is printed due to a user's mistake or a incorrect operation of the image forming apparatus can be prevented.

摘要翻译： 提供了根据图像数据的亮度分布形成图像的装置和方法。 该方法包括检测表示页面单元的图像数据的图像数据单元的亮度分布; 根据检测到的亮度分布确定图像数据单元的图像是否形成; 如果没有形成图像形成，停止图像数据单元的图像形成; 以及如果确定了图像形成，则执行图像数据单元的图像形成。 因此，当由于用户的错误或图像形成装置的不正确的操作而打印出太低亮度的图像时产生的调色剂废料可以被防止。

公开(公告)号：US07773901B2

公开(公告)日：2010-08-10

申请号：US11953132

申请日：2007-12-10

申请人： Myong-hun Cho

发明人： Myong-hun Cho

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0138 ,  G03G2215/0161

摘要： An image forming apparatus includes a transport unit having a transport belt which transports a printing medium in a transport direction along a transport path, an image forming unit which transfers toner to the printing medium to form an image, a density evaluation unit which is provided on the transport path of the transport belt and evaluates a density of the image formed by the image forming unit, and a controller which controls the image forming unit to form a test image which has a length in a transport direction that is determined by a position deflection of the transport belt, controls a characteristic of the image forming unit based on a density evaluation of the test image, and controls the transport unit to make the transporting speed of the transport belt a predetermined value or less during the density evaluation of the test image by the density evaluation unit.

摘要翻译： 一种图像形成装置，包括：传送单元，具有沿传送路径沿传送方向传送打印介质的传送带;将调色剂传送到打印介质以形成图像的图像形成单元;密度评估单元，设置在 输送带的输送路径，评价由图像形成单元形成的图像的浓度，以及控制器，其控制图像形成单元，以形成测试图像，所述测试图像的输送方向上的长度由位置偏移确定 根据测试图像的密度评估来控制图像形成单元的特性，并且在测试图像的密度评估期间控制传送单元使传送带的传送速度为预定值或更小 通过密度评估单元。

公开(公告)号：US07346306B2

公开(公告)日：2008-03-18

申请号：US11314021

申请日：2005-12-22

申请人： Myong-hun Cho

发明人： Myong-hun Cho

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： A fixing device built in an electrophotographic image forming apparatus and a temperature control method for the fixing device are provided. The fixing device comprises a power supplying unit for supplying power to the fixing device; a control variable determination unit for determining control variables corresponding to operating states of the fixing device, wherein the control variables are used to control a temperature of the fixing device; a temperature detection unit for detecting the temperature of the fixing device; and a temperature control unit for controlling the temperature of the fixing device by using the control variables, wherein the temperature control unit comprises a duty ratio adjustment unit for adjusting a duty ratio of the supplied power based on the determined control variables. In addition, the control variable determination unit determines the control variables corresponding to at least one of a plurality of operating states.

摘要翻译： 提供内置于电子照相成像设备中的定影装置和用于定影装置的温度控制方法。 定影装置包括用于向定影装置供电的供电单元; 控制变量确定单元，用于确定与定影装置的操作状态相对应的控制变量，其中控制变量用于控制定影装置的温度; 温度检测单元，用于检测定影装置的温度; 以及温度控制单元，其通过使用所述控制变量来控制所述定影装置的温度，其中，所述温度控制单元包括用于基于所确定的控制变量来调整所供电的占空比的占空比调整单元。 此外，控制变量确定单元确定与多个操作状态中的至少一个对应的控制变量。

公开(公告)号：US08521072B2

公开(公告)日：2013-08-27

申请号：US12654972

申请日：2010-01-11

申请人： Yong Ho You ,  Hae Seog Jo ,  Myong Hun Cho

发明人： Yong Ho You ,  Hae Seog Jo ,  Myong Hun Cho

IPC分类号： G03G15/01

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0145 ,  G03G2215/0161 ,  G03G2215/2025

摘要： An image forming apparatus and a color registration method thereof. The color registration method includes checking a change in a status of an image forming apparatus, selecting color registration patterns having a different length according to the status change, and performing color registration by printing the color registration patterns having the different length onto a transfer belt.

摘要翻译： 一种图像形成装置及其颜色配准方法。 颜色配准方法包括：检查图像形成装置的状态的变化，根据状态变化选择具有不同长度的彩色配准图案，以及通过将具有不同长度的彩色配准图案打印到转印带上来执行彩色配准。

公开(公告)号：US07315315B2

公开(公告)日：2008-01-01

申请号：US11131213

申请日：2005-05-18

申请人： Beom-ro Lee ,  Je-man Seo ,  Myong-hun Cho

发明人： Beom-ro Lee ,  Je-man Seo ,  Myong-hun Cho

IPC分类号： B41J2/52

CPC分类号： H04N1/405 ,  H04N1/4015

摘要： A halftone processing method for correcting the variation in light intensity on a photoconductive drum and an apparatus using the same, wherein the method includes the steps of preparing a plurality of dithering functions, detecting the position where image data for forming an electrostatic latent image is scanned on the photoconductive drum, selecting one of the plurality of dithering functions according to the detected scanning position, and halftone-processing the image data using the selected dithering function. Accordingly, the halftone processing method improves print quality by increasing light intensity at the edges of a photoconductive drum by permitting the laser printer to be halftone-processed using dithering functions whose critical values are different for the center and the edges of the photoconductive drum.

摘要翻译： 一种用于校正感光鼓上的光强度变化的半色调处理方法及其使用方法，其中该方法包括以下步骤：准备多个抖动函数，检测扫描形成静电潜像的图像数据的位置 在感光鼓上，根据检测到的扫描位置选择多个抖动功能之一，并使用所选择的抖动功能对图像数据进行半色调处理。 因此，半色调处理方法通过允许激光打印机使用对于感光鼓的中心和边缘的临界值不同的抖动函数进行半色调处理，通过增加感光鼓的边缘处的光强度来提高打印质量。