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    Method and apparatus for controlling an image density
    31.
    发明授权
    Method and apparatus for controlling an image density 有权
    用于控制图像浓度的方法和装置

    公开(公告)号：US07398026B2

    公开(公告)日：2008-07-08

    申请号：US11475959

    申请日：2006-06-28

    Applicant: Hitoshi Ishibashi

    Inventor： Hitoshi Ishibashi

    IPC: G03G15/00

    CPC classification number: G03G15/5058 ,  G03G15/0194 ,  G03G15/50 ,  G03G15/5041 ,  G03G2215/00029 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/00067 ,  G03G2215/0119 ,  G03G2215/0177

    Abstract: An amount of toner transfer on a reference pattern is calculated by using an optical detecting unit that detects both regular reflection light and diffuse reflection light from a detection target simultaneously, based on a relative ratio between a value obtained by subtracting a result of multiplying a “diffuse reflection output” by a “minimum value of a ratio between a regular reflection output and the diffuse reflection output” from the “regular reflection output” of the density detection reference pattern, and a value obtained by subtracting a result of multiplying the “diffuse reflection output” by a “minimum value of a ratio between the regular reflection output and the diffuse reflection output” from the “regular reflection output” in the background of a transfer belt or an intermediate transfer body.

    Abstract translation: 通过使用光学检测单元来计算参考图案上的调色剂转印量，该光学检测单元基于通过减去乘以“1”的结果获得的值之间的相对比率来同时检测来自检测对象的正反射光和漫反射光， 通过“浓度检测基准图案”的“正反射输出”的“正反射输出与漫反射输出之间的比值的最小值”的漫反射输出，以及通过将“漫反射输出” 通过在转印带或中间转印体的背景中的“正反射输出”的“正反射输出和漫反射输出之间的比率的最小值”反射输出。

    IMAGE FORMING APPARATUS
    32.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20070297817A1

    公开(公告)日：2007-12-27

    申请号：US11737595

    申请日：2007-04-19

    Applicant: Yuji Bessho

    Inventor： Yuji Bessho

    IPC: G03G15/08

    CPC classification number: G03G15/5058 ,  G03G15/0131 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00067 ,  G03G2215/0119 ,  G03G2215/0164

    Abstract: An image forming apparatus includes a plurality of development units each using a developer including a toner and a carrier, a density detection unit configured to perform a density detection operation for detecting a density of a detection toner image formed by each of the plurality of development units, and a replenishment unit configured to perform a toner replenishment operation based on a result of the detection by the density detection unit. In the image forming apparatus, at least two of the plurality of development units use respective toners having different color depths in the same hue, and a frequency of the density detection operation using the development unit using a lighter color toner is higher than a frequency of the density detection operation using the development unit using a darker color toner.

    Abstract translation: 图像形成装置包括多个显影单元，每个显影单元使用包括调色剂和载体的显影剂，浓度检测单元被配置为执行浓度检测操作，以检测由多个显影单元中的每一个形成的检测调色剂图像的浓度 以及补充单元，其被配置为基于密度检测单元的检测结果执行调色剂补充操作。 在图像形成装置中，多个显影单元中的至少两个显示单元使用具有相同色调的不同颜色深度的各自的调色剂，并且使用使用浅色调色剂的显影单元的浓度检测操作的频率高于 使用深色调色剂的显影单元的浓度检测操作。

    Print quality maintenance method and system
    33.
    发明申请
    Print quality maintenance method and system 有权
    打印质量维护方法和系统

    公开(公告)号：US20070292148A1

    公开(公告)日：2007-12-20

    申请号：US11453218

    申请日：2006-06-14

    Applicant: Scott T. Slattery ,  Rodney R. Bucks ,  Richard G. Allen

    Inventor： Scott T. Slattery ,  Rodney R. Bucks ,  Richard G. Allen

    IPC: G03G15/08 ,  G03G15/00

    CPC classification number: G03G21/203 ,  G03G15/0266 ,  G03G15/0849 ,  G03G15/5062 ,  G03G2215/00067 ,  G03G2215/0888

    Abstract: An system and related method for maintaining print quality based on development potential measurements that include comparing the current process measurements to a toner concentration related set-point; calculating a quality adjustment range based on current process measurements and the toner concentration related set-point, or a derivative thereof, indicative of print quality; and adjusting current process conditions related to the current process measurements to trend towards a new set point within the quality adjustment range so that a rate of change is proportional to the difference between the current process measurements and the set point.

    Abstract translation: 一种用于基于开发潜力测量来维持打印质量的系统和相关方法，包括将当前过程测量与调色剂浓度相关的设定点进行比较; 基于当前处理测量值和调色剂浓度相关设定值或其衍生物计算质量调整范围，指示打印质量; 并且调整与当前过程测量相关的当前过程条件以趋向于质量调整范围内的新设定点，使得变化率与当前过程测量值与设定值之间的差异成比例。

    Image forming apparatus using toner containing wax with image density detecting means used for image density adjustment
    34.
    发明授权
    Image forming apparatus using toner containing wax with image density detecting means used for image density adjustment 有权
    使用含有蜡的调色剂的图像形成装置具有用于图像浓度调节的图像浓度检测装置

    公开(公告)号：US07224916B2

    公开(公告)日：2007-05-29

    申请号：US11144595

    申请日：2005-06-06

    Applicant: Tadashi Iwakawa

    Inventor： Tadashi Iwakawa

    IPC: G03G15/00

    CPC classification number: G03G15/5062 ,  G03G2215/00067 ,  G03G2215/00438 ,  G03G2215/00586

    Abstract: The image forming apparatus including a heat roller fixing apparatus for heat-fixing an image obtained through development using toner to a recording medium, and a density sensor for detecting density of the image after the fixing, the image forming apparatus serving to adjust image density based on image density detected by the density sensor, in which the density sensor is disposed in a position where a temperature of the image being conveyed within a conveying path is equal to or lower than a coagulation temperature (melting point) of the toner.

    Abstract translation: 图像形成装置包括用于将通过使用调色剂显影获得的图像热定影到记录介质的加热辊定影装置和用于检测定影之后的图像的浓度的浓度传感器，用于调整图像密度的图像形成装置 在密度传感器检测到的图像浓度上，其中密度传感器设置在传送路径内被传送的图像的温度等于或低于调色剂的凝固温度（熔点）的位置。

    Semi-automatic image quality adjustment for multiple marking engine systems
    36.
    发明授权
    Semi-automatic image quality adjustment for multiple marking engine systems 失效
    半标记引擎系统的半自动图像质量调整

    公开(公告)号：US07162172B2

    公开(公告)日：2007-01-09

    申请号：US10999326

    申请日：2004-11-30

    Applicant: Robert E. Grace ,  Michael C. Mongeon ,  Hugh W. Griffith ,  Krzysztof J. Less ,  Tim D. M. Enskat

    Inventor： Robert E. Grace ,  Michael C. Mongeon ,  Hugh W. Griffith ,  Krzysztof J. Less ,  Tim D. M. Enskat

    IPC: G03G15/00

    CPC classification number: G03G15/5062 ,  G03G15/0194 ,  G03G2215/00021 ,  G03G2215/00063 ,  G03G2215/00067 ,  G03G2215/0161

    Abstract: Using a document scanner or other image input device of an image or document processing system to periodically scan or image printed test images from a plurality of marking engines replaces internal sensors as a feedback means in image quality control. For example, image lightness (L*) is controlled by periodically printing mid-tone test patches, scanning the printed test patches with a main job document scanner and analyzing the scanned image to determine updated marking engine actuator set points. For instance, ROS exposure and/or scorotron grid voltages are adjusted to maintain image lightness consistency between marking engines.

    Abstract translation: 使用图像或文件处理系统的文档扫描器或其他图像输入装置来周期性地扫描或图像来自多个标记引擎的打印的测试图像将内部传感器替换为图像质量控制中的反馈装置。 例如，图像亮度（L *）通过周期性地打印中间色调测试补丁来控制，用主要作业文档扫描器扫描印刷的测试补丁并分析扫描图像以确定更新的标记引擎执行器设定点。 例如，调整ROS曝光和/或烧烤栅极电压以保持标记引擎之间的图像亮度一致性。

    Image forming apparatus
    37.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US20060062617A1

    公开(公告)日：2006-03-23

    申请号：US11055514

    申请日：2005-02-11

    Applicant: Naoya Yamasaki

    Inventor： Naoya Yamasaki

    IPC: G03G15/00

    CPC classification number: G03G15/652 ,  G03G15/5062 ,  G03G2215/00067 ,  G03G2215/00455 ,  G03G2215/0161

    Abstract: An image forming apparatus of the invention at least includes: a transport control component for controlling a transporting component so that transporting of the continuous paper is stopped when a print job is finished, the continuous paper is back-transported to an image formation start position of the next print job, and after that, the continuous paper is transported again; and a control component that, when a print job is executed in the case where a pattern image exists in a back-transported area which is set after the continuous paper is back-transported, controls the image formation controlling component so as not to correct the image formation position.

    Abstract translation: 本发明的图像形成装置至少包括：传送控制部件，用于控制传送部件，使得当打印作业完成时连续纸张的传送停止，连续纸被反向传送到图像形成开始位置 下一个打印作业，之后再连续传送纸张; 以及控制部件，当在连续纸被反向传送之后设定的反向传送区域中存在图案图像的情况下执行打印作业时，控制图像形成控制部件，以便不校正 图像形成位置。

    Image recording apparatus, image recording method, and calibration system of image recording apparatuses
    38.
    发明授权
    Image recording apparatus, image recording method, and calibration system of image recording apparatuses 有权

    公开(公告)号：US07012716B2

    公开(公告)日：2006-03-14

    申请号：US09867705

    申请日：2001-05-31

    Applicant: Hiroyuki Furuya

    Inventor： Hiroyuki Furuya

    IPC: G06K15/00 ,  H04N1/40

    CPC classification number: H04N1/6033 ,  B41J29/393 ,  G03G15/5041 ,  G03G2215/00063 ,  G03G2215/00067 ,  G03G2215/00109 ,  H04N1/2323 ,  H04N1/40025

    Abstract: An image recording apparatus has a converting device which converts a first image signal into a second image signal by employing an image signal converting condition, a recording device for recording an image by signal values of the second image signal, a measuring device for reading a test chart image recorded by the recording device by test chart output image signal values to acquire measurement density values, a selecting device for selecting reference density values corresponding to the measurement density values from target density data which indicates a relationship between the first image signal and target density of an image recorded on a recording medium, and a calculating device for calculating target image signal values based upon the target density data and the reference density values and for calculating the image signal converting condition based upon both the target image signal values and the test chart output image signal values.

    Color image forming apparatus and method for controlling the same
    40.
    发明授权
    Color image forming apparatus and method for controlling the same 有权
    彩色图像形成装置及其控制方法

    公开(公告)号：US06898381B2

    公开(公告)日：2005-05-24

    申请号：US10286775

    申请日：2002-11-04

    Applicant: Yoichiro Maebashi ,  Tomoaki Nakai ,  Hiroki Tezuka

    Inventor： Yoichiro Maebashi ,  Tomoaki Nakai ,  Hiroki Tezuka

    IPC: G03G15/00 ,  G03G15/01

    CPC classification number: G03G15/5058 ,  G03G15/01 ,  G03G15/0131 ,  G03G15/5062 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/00067 ,  G03G2215/0119

    Abstract: A color image forming apparatus includes a first density detecting unit for detecting a density of a first detection toner image formed on an image bearing member or a transferring material carrying member, and a second density detecting unit for detecting a density of a second detection toner image fixed onto a transferring material, and executes image density control based on a detection result of the first density detecting unit and a detection result of the second density detecting unit. A detecting light application position of the first density detecting unit and a detection light application position of the second density detecting unit are almost equal relative to a perpendicular direction to a transferring material conveying direction. It is thereby possible to shorten time required for density control and to prevent deterioration of density control accuracy caused by a temporal change and a positional change in the density of a detection toner patch.

    Abstract translation: 彩色图像形成装置包括：第一浓度检测单元，用于检测形成在图像承载部件或转印材料承载部件上的第一检测调色剂图像的浓度;以及第二浓度检测单元，用于检测第二检测调色剂图像的浓度 固定在转印材料上，并且基于第一浓度检测单元的检测结果和第二浓度检测单元的检测结果执行图像浓度控制。 第一浓度检测单元的检测光施加位置和第二浓度检测单元的检测光施加位置相对于转印材料输送方向的垂直方向几乎相等。 从而可以缩短密度控制所需的时间并且防止由于时间变化引起的浓度控制精度的劣化和检测调色剂贴片的密度的位置变化。

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