JP2014159103A5

JP2014159103A5 -

Info

Publication number: JP2014159103A5
Application number: JP2013029948A
Authority: JP
Filing date: 2013-02-19
Publication date: 2016-03-31

Description

上記課題を解決すべく本発明の画像処理装置は、画像を形成する画像形成手段と、用紙搬送路に設置され、前記画像形成手段により用紙に形成されたパッチ画像を複数含むチャート画像を複数のセンサにより測色する測色手段と、前記測色手段によるパッチ画像の測色結果を用いて前記画像形成手段が形成する画像の色を目標値に近づけるように補正するためのデータを生成する補正データ生成手段を有し、前記複数のセンサのうち、前記チャート画像に含まれる第１のパッチ画像を測色する第１のセンサが故障した場合、前記第１のパッチを、前記第１のセンサとは異なる第２のセンサにより測色できるように、前記チャート画像にて前記第１のパッチが形成される配置位置を変更する変更手段を有することを特徴とする。 In order to solve the above-described problem, an image processing apparatus according to the present invention includes an image forming unit that forms an image, and a plurality of chart images that are installed in a sheet conveyance path and include a plurality of patch images formed on the sheet by the image forming unit. Color measurement means for measuring colors by a sensor, and correction for generating data for correcting the color of an image formed by the image forming means to be close to a target value using a color measurement result of a patch image by the color measurement means When the first sensor for measuring the color of the first patch image included in the chart image has a failure among the plurality of sensors, the first patch is replaced with the first sensor. It has a change means which changes the arrangement position where the 1st patch is formed in the chart image so that color measurement can be carried out by a 2nd sensor different from.

Claims

An image forming means for forming an image;
A colorimetric unit that is installed in a sheet conveyance path and measures a chart image including a plurality of patch images formed on the sheet by the image forming unit by a plurality of sensors;
Correction data generation means for generating data for correcting the color of the image formed by the image forming means so as to approach the target value using the color measurement result of the patch image by the color measurement means;
When the first sensor that measures the color of the first patch image included in the chart image among the plurality of sensors fails,
Changing means for changing a position where the first patch is formed in the chart image so that the first patch can be measured by a second sensor different from the first sensor; An image processing apparatus.

The changing unit is configured to change a first patch image formed at a first position, which is a reading position of the first sensor, to a position different from the first position, and at a reading position of the second sensor. The image processing apparatus according to claim 1, wherein the image processing apparatus is formed at a second position.

The correction data generating means, so as to approximate the color of an image to be formed is the image forming unit by using the result obtained by measuring a more chart image arrangement position is changed in the first patch to said changing means to the target value The image processing apparatus according to claim 1, wherein data for correcting the image is generated .

Data referenced to form the chart image;
In the chart image, the arrangement position of the patch image is designated so as to form the first patch image at the first position, and the value obtained by measuring the color of the first patch image by the colorimetric means and the first color are measured. Storage means for storing chart data, which is data for associating with a target value of 1, and when a failure of the first sensor for measuring the color of the first patch image is detected,
The changing unit changes the arrangement position of the patch image so as to form the first patch image at the second position from the first position specified by the chart data,
Based on the chart data, a first target value associated with a colorimetric value of the first patch image formed at the first position is used as the first patch image formed at the second position. The image processing apparatus according to claim 1, wherein the chart data stored in the storage unit is changed by associating with the colorimetric value.

Measure the color of the chart image formed by the image forming unit according to the chart data changed by the changing unit by the color measuring unit,
Using the colorimetric value of the first patch image formed at the second position by the colorimetry and the first target value associated with the colorimetric value,
5. The image processing apparatus according to claim 4, further comprising correction data generation means for generating data for correcting a color of an image formed by the image forming means so as to approach the first target value. .

The image processing apparatus according to claim 1, wherein the second position is in a chart image formed on the same sheet as the first position.

The image processing apparatus according to claim 1, wherein the second position is in a chart image formed on a sheet different from the first position.

The image processing apparatus according to claim 1, wherein the second position has an area where the sensor can perform colorimetry.

When there are a plurality of patch images measured by the first sensor,
When a failure of the plurality of first sensors is detected, the changing unit converts the plurality of patch images to a plurality of sensors in which a failure other than the first sensor is not detected. The image processing apparatus according to claim 1, wherein an arrangement position of the plurality of first patch images is changed so as to be formed at a position read by a single sensor.

2. The display device according to claim 1, further comprising a display unit configured to display to notify that a failure of a sensor that reads a first patch image formed at the first position among the sensors is detected. Image processing apparatus.

The image processing apparatus according to claim 1, wherein a serviceman is notified that a failure of a sensor that reads a first patch image formed at the first position is detected among the sensors. .

An image forming step for forming an image;
A colorimetric step for measuring a chart image including a plurality of patch images formed on the paper by the image forming step by a plurality of sensors, which is installed in the paper conveyance path;
A correction data generation step of generating data for correcting the color of the image formed by the image formation step to be close to a target value using the color measurement result of the patch image in the color measurement step;
When the first sensor that measures the color of the first patch image included in the chart image among the plurality of sensors fails,
A changing step of changing an arrangement position of the first patch in the chart image so that the first patch can be measured by a second sensor different from the first sensor; An image processing method characterized by the above.

In the changing step, the first patch image formed at the first position, which is the reading position of the first sensor, is at a position different from the first position, and at the reading position of the second sensor. The image processing method according to claim 12, wherein the image processing method is formed at a certain second position.

The correction data generating step was closer the color of the image by the image forming step is formed by using a result obtained by measuring a more first chart image arrangement position is changed in the patch to the change step to the target value 13. The image processing method according to claim 12, wherein data for correction is generated as described above.

Data referenced to form the chart image;
In the chart image, the arrangement position of the patch image is designated so as to form the first patch image at the first position, and the value measured by the colorimetry step and the first patch image are measured. A storage step of storing chart data that is data for associating with a target value of 1 and when a failure of the first sensor that measures the color of the first patch image is detected;
The changing step changes the arrangement position of the patch image so as to form the first patch image from the first position specified by the chart data to the second position;
Based on the chart data, a first target value associated with the colorimetric value of the first patch image formed at the first position is used as the first patch image formed at the second position. The image processing method according to claim 12, wherein the chart data stored in the storage step is changed by associating with the colorimetric value.

The chart image formed by the image forming step according to the chart data changed by the changing step is measured by the color measuring step,
Using the colorimetric value of the first patch image formed at the second position by the colorimetry and the first target value associated with the colorimetric value,
16. The image processing method according to claim 15, further comprising a correction data generation step of generating data for correcting the color of the image formed by the image formation step so as to approach the first target value. .

The image processing method according to claim 12, wherein the second position is in a chart image formed on the same sheet as the first position.

The image processing method according to claim 12, wherein the second position is a chart image formed on a sheet different from the first position.

13. The image processing method apparatus according to claim 12, wherein the second position has an area where the sensor can perform colorimetry.

When there are a plurality of patch images measured by the first sensor,
When a failure of the plurality of first sensors is detected, the changing step configures the plurality of patch images to form a plurality of sensors in which a failure other than the first sensor is not detected. The image processing method according to claim 12, wherein an arrangement position of the plurality of first patch images is changed so as to be formed at a position read by one sensor.

13. The display step according to claim 12, further comprising: a display step for displaying that a failure of a sensor that reads a first patch image formed at the first position among the sensors is detected. Image processing method.

13. The image processing method according to claim 12, wherein a serviceman is notified that a failure of a sensor that reads a first patch image formed at the first position is detected among the sensors. .

23. A program for causing a computer to execute the image processing method according to claim 12.