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US 2010/0302303 A1Published application
Image recording apparatus, method of calculating record position shifts, and method of recording measured patterns
AssigneeOlympus Corporation
InventorsToshiyuki Ebihara, Takeo Ogama
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Abstract
An image recording apparatus records a plurality of measuring patterns on a recording medium. Each measuring pattern is constituted by dots spaced from one another on the recording medium, or by dots contacting one another, forming lines spaced from one another on the recording medium. Further, the measuring patterns have gravity centers are almost identical in position on the recording medium. Hence, the relative record shifts of the measuring patterns recorded by recording element arrays, respectively, can be decreased.
Claims12
An image recording apparatus comprising:
- a measuring pattern recording unit include a plurality of recording element arrays, each composed of recording elements configured to record ink dots on a recording medium, configured to move the recording medium relative to the recording element arrays, and to drive the recording elements of each recording element array, thereby recording a prescribed measuring pattern;
- a read unit configured to read the measuring patterns recorded on the recording medium;
- and
- a record-position shift calculating unit configured to calculate relative record shifts of the measuring patterns, from reading results acquired by the read unit,
- wherein the measuring pattern recording unit records measuring patterns on the recording medium such that gravity centers of the measuring patterns are identical in position on at least one of first and second coordinate axes, the first coordinate axis being parallel to a direction in which the recording medium is moved relative to the recording element arrays, and the second coordinate axis being parallel to a direction in which the recording element arrays are adjusted in position.
2 more elements
An image recording apparatus comprising:
- a plurality of recoding element arrays, each composed of a plurality of recording elements arranges in a given direction;
- a measuring pattern recording unit configured to record, on a recording medium, a plurality of measuring patterns, each constituted by a plurality of dots spaced apart from one another;
- a read unit configured to read the measuring patterns recorded on the recording medium;
- and
- a record-position shift calculating unit configured to calculate relative record shifts of the measuring patterns, from reading results acquired by the read unit,
- wherein the measuring pattern recording unit records a plurality of measuring patterns such that the dots constituting each measuring pattern are spaced from one another that gravity centers of the measuring patterns are identical in position on the recording medium.
3 more elements
An image recording apparatus comprising:
- a plurality of recording element arrays, each composed of recording elements;
- a measuring pattern recording unit configured to record, on a recording medium, a plurality of measuring patterns, each constituted by a plurality of spaced apart from one another;
- a read unit configured to read the measuring patterns recorded on the recording medium;
- and
- record-position shift calculating unit configured to calculate relative record shifts of the measuring patterns, from reading results acquired by the read unit,
- wherein the measuring pattern recording unit records the measuring patterns such that the dots constituting each measuring pattern are arranged in a different manner from the dots constituting any other measuring pattern, and the gravity centers of the measuring patterns are identical in position on the recording medium.
3 more elements
A method of calculating record position shifts comprising:
- recording measuring patterns on a recording medium, each pattern constituted by a plurality spaced from one another, by using a plurality of recording element arrays, each composed of recording elements configured to record dots;
- reading the measuring patterns recorded on the recording medium;
- and
- calculating relative record shifts of the measuring patterns, from reading results acquired in reading the measuring patterns,
- wherein the measuring patterns are recorded on the recording medium such that the dots constituting each measuring pattern are spaced from the dots constituting any other measuring pattern, and gravity centers of the measuring patterns are identical in position on the recording medium.
2 more elements
A method of forming measuring patterns, comprising:
- recording a first measuring pattern on a recording medium by using a first recording element array constituted by a plurality of recording elements;
- and
- recording, on the recording medium, a second measuring pattern at a position different from the position of the first measuring pattern, the second measuring pattern having a gravity center identical to the gravity center of the first measuring pattern in position on the recording medium.
Dependencies are inferred from the claim text.