JP2003280317A5

JP2003280317A5 -

Info

Publication number: JP2003280317A5
Application number: JP2002082421A
Authority: JP
Filing date: 2002-03-25
Publication date: 2004-11-18
Anticipated expiration: 2022-03-25

Description

【００１２】
【課題を解決するための手段】
前記目的を達成するため、複数色の画像を中間転写体上に形成して多色のカラー画像を形成するときの各色の位置ずれを補正する位置ずれ補正パターンの形成方法において、所定ピッチで複数のラインを基準色である黒トナーにより形成した基準パターンに対し、この基準パターンと等ピッチで複数のラインからなるカラートナーの補正対象色パターンとを重ね合わせたパターンをひとつのパッチとし、前記ラインの相対的な位置関係を該ラインのピッチ方向に任意量シフトさせたパッチを複数個、検出センサの読みとり方向に対し、連続的に形成したパッチ群を形成し、基準色である黒トナーは転写体上で重ね合わさせる最終色であり、かつ、補正対象色パターンが基準パターンに対し完全に重なった、もしくは完全にずれたパターンを基準パッチとし、この基準パッチに対して複数のパッチを、前記検出センサの読み取り方向に対し、前後に連続的に並べてパッチ群を形成することを特徴とする。[0012]
[Means for Solving the Problems]
In order to achieve the above object, in a method of forming a misregistration correction pattern for correcting misregistration of each color when forming a multicolor image by forming a plurality of color images on an intermediate transfer member, A single patch is obtained by superimposing a pattern obtained by superimposing a reference pattern formed of a plurality of lines at equal pitch on a reference pattern formed of black toner as a reference color with the reference pattern and a plurality of lines at the same pitch as one patch. A plurality of patches whose relative positional relationship is shifted by an arbitrary amount in the pitch direction of the line, a patch group formed continuously in the reading direction of the detection sensor is formed, and the black toner as the reference color is transferred. The final color to be superimposed on the body, and based on the pattern in which the color pattern to be corrected completely overlaps or completely And patches, the plurality of patches relative to the reference patch, with respect to the reading direction of the sensor, and forming a patch group arranged continuously back and forth.

【００２０】
第９の手段は、複数の像担持体と、各像担持体上に形成されたトナー像を、順次転写することによりカラー画像出力を得るカラー画像形成装置において、所定ピッチで複数のラインを基準色である黒トナーにより形成した基準パターンに対し、この基準パターンと等ピッチで複数のラインからなるカラートナーの補正対象色パターンとを重ね合わせたパターンをひとつのパッチとし、前記ラインの相対的な位置関係を該ラインのピッチ方向に任意量シフトさせたパッチを複数個、検出センサの読み取り方向に対し、連続的に形成したパッチ群を形成するパターン形成手段と、この連続的なパッチ群の拡散光出力成分を検出するための検出センサとを備え、基準色である黒トナーは転写体上で重ね合わさせる最終色であり、かつ、補正対象色パターンが基準パターンに対し完全に重なった、もしくは完全にずれたパターンを基準パッチとし、この基準パッチに対し、複数のパッチを、前記検出センサの読み取り方向に対し、前後に連続的に並べた構成としたパッチ群を色ずれ補正パターンとすることを特徴とする。[0020]
The ninth means is a color image forming apparatus which obtains a color image output by sequentially transferring a plurality of image carriers and toner images formed on the respective image carriers, with a plurality of lines being referenced at a predetermined pitch. A pattern obtained by superimposing a reference pattern formed of black toner, which is a color, and a color pattern to be corrected of a color toner composed of a plurality of lines at equal pitches onto a reference pattern formed as a single patch is used as one patch. a plurality of patches is arbitrary amount shifted positional relationship in the pitch direction of the line, to read Installing direction of the detection sensor, and the pattern forming means for forming a patch group was continuously formed, the continuous patch group and a detection sensor for detecting the diffuse light output component, the black toner is the reference color is the last color causes superimposed on the transfer member, and corrected Iropa Over down perfectly overlap with respect to the reference pattern, or to completely shift pattern and the reference patches to the reference patches, the plurality of patches, to read Installing direction of the detection sensor, continuously back and forth The patch group arranged side by side is characterized as a color shift correction pattern.

【００６０】
【発明の効果】
以上説明したように、本発明によれば、所定ピッチで複数のラインを基準色である黒トナーにより形成した基準パターンに対し、この基準パターンと等ピッチで複数のラインからなるカラートナーの補正対象色パターンとを重ね合わせたパターンをひとつのパッチとし、前記ラインの相対的な位置関係を該ラインのピッチ方向に任意量シフトさせたパッチを複数個、検出センサの読み取り方向に対し、連続的に形成したパッチ群を形成し、基準色である黒トナーは転写体上で重ね合わさせる最終色であり、かつ、補正対象色パターンが基準パターンに対し完全に重なった、もしくは完全にずれたパターンを基準パッチとし、この基準パッチに対して複数のパッチを、前記検出センサの読み取り方向に対し、前後に連続的に並べてパッチ群を形成するようにしたので、高精度の色ずれ検知が可能な補正パターンを形成することができる。[0060]
【The invention's effect】
As described above, according to the present invention, the correction target of the color toner composed of a plurality of lines at the same pitch as the reference pattern is obtained with respect to the reference pattern in which a plurality of lines are formed at a predetermined pitch with the black toner as the reference color. A pattern in which the color pattern is superimposed is regarded as one patch, and a plurality of patches in which the relative positional relationship of the line is shifted by an arbitrary amount in the pitch direction of the line are continuously arranged in the reading direction of the detection sensor. The formed patch group is formed, and the reference color black toner is the final color to be superimposed on the transfer body, and the color pattern to be corrected is completely overlapped with or completely displaced from the reference pattern. and patches, the plurality of patches relative to the reference patch, with respect to the reading direction of the sensor, the form of the patch groups arranged consecutively in the longitudinal Since the way, it is possible to form a correction pattern that can color shift detection precision.

Claims

In a method of forming a misregistration correction pattern for correcting misregistration of each color when forming a multicolor image by forming a multicolor image on an intermediate transfer body,
A reference pattern in which a plurality of lines are formed at predetermined pitches using black toner as a reference color, and a pattern in which this reference pattern and a color toner correction target color pattern including a plurality of lines at equal pitches are superimposed on one patch A plurality of patches in which the relative positional relationship of the line is shifted by an arbitrary amount in the pitch direction of the line, and a patch group formed continuously in the reading direction of the detection sensor is formed; The black toner is the final color to be superimposed on the transfer body, and a pattern in which the color pattern to be corrected completely overlaps or is completely displaced from the reference pattern is used as a reference patch. Wherein a patch group is formed by continuously arranging the patches in front and rear with respect to the reading direction of the detection sensor. Turn formation method.

In a color image forming apparatus that obtains a color image output by sequentially transferring a plurality of image carriers and toner images formed on each image carrier,
A reference pattern in which a plurality of lines are formed at predetermined pitches using black toner as a reference color, and a pattern in which this reference pattern and a color toner correction target color pattern including a plurality of lines at equal pitches are superimposed on one patch and then, a plurality of patches is arbitrary shift amount in the pitch direction relative positional relationship the lines of the line, to read Installing direction of the detection sensor, the pattern forming means for forming a patch group was continuously formed When,
A detection sensor for detecting a diffused light output component of the continuous patch group;
With
The reference color black toner is the final color to be superimposed on the transfer body, and a pattern in which the color pattern to be corrected completely overlaps or is completely displaced from the reference pattern is used as a reference patch. , a plurality of patches, the relative read Installing direction of the detection sensor, a color image forming apparatus, characterized in that the patch group was continuously aligned configuration before and after the color shift correction pattern.