IMAGE RECORDING APPARATUS
PROBLEM TO BE SOLVED: To accurately correct the position of a recording head with high accuracy in each traveling unit only by disposing a distance sensor which is mounted on one of a plurality of traveling units and measures the distance from the peripheral face of a drum in the direction of the op...
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| creator | HITOMI HIDEO KATANO TATSUYA OCHI MASASHI MATSUDA RYUTA NIINO ATSUSHI |
| description | PROBLEM TO BE SOLVED: To accurately correct the position of a recording head with high accuracy in each traveling unit only by disposing a distance sensor which is mounted on one of a plurality of traveling units and measures the distance from the peripheral face of a drum in the direction of the optical axis. SOLUTION: A focus curve relating to the varying state of the correction amount according to the position on a drum 1 is preliminarily acquired by measuring with a distance sensor 38, and the positions of recording heads 22, 23 are corrected on the basis of the focus curve. In particular, the variance ΔP of the gap distance caused by environmental changes is acquired during recording, and the position of the recording head is corrected by considering the variance ΔP. The variance ΔP is obtained by comparing the proper value preliminarily acquired relating to the traveling unit having the distance sensor with the measured value obtained during recording. COPYRIGHT: (C)2005,JPO&NCIPI |
| format | Patent |
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SOLUTION: A focus curve relating to the varying state of the correction amount according to the position on a drum 1 is preliminarily acquired by measuring with a distance sensor 38, and the positions of recording heads 22, 23 are corrected on the basis of the focus curve. In particular, the variance ΔP of the gap distance caused by environmental changes is acquired during recording, and the position of the recording head is corrected by considering the variance ΔP. The variance ΔP is obtained by comparing the proper value preliminarily acquired relating to the traveling unit having the distance sensor with the measured value obtained during recording. 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SOLUTION: A focus curve relating to the varying state of the correction amount according to the position on a drum 1 is preliminarily acquired by measuring with a distance sensor 38, and the positions of recording heads 22, 23 are corrected on the basis of the focus curve. In particular, the variance ΔP of the gap distance caused by environmental changes is acquired during recording, and the position of the recording head is corrected by considering the variance ΔP. The variance ΔP is obtained by comparing the proper value preliminarily acquired relating to the traveling unit having the distance sensor with the measured value obtained during recording. COPYRIGHT: (C)2005,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MATERIALS THEREFOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS |
| title | IMAGE RECORDING APPARATUS |
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