Inspection device and ink-jet printing device therewith

Abstract

The invention provides an inspection device and an ink-jet printing device therewith. The inspection device includes a sheet conveying portion, an image reading portion, a timing control portion, a storage portion, a comparing control portion, and a display portion. The image reading portion reads a plurality of images of the same pattern recorded repeatedly with a predetermined pitch on a recording sheet conveyed by the sheet conveying portion. The timing control portion regulates the timing of image reading by the image reading portion. The storage portion stores the plurality of images readby the image reading portion. The comparing control portion takes, out of the plurality of images stored in the storage portion, part of an image continuously recorded on the recording sheet corresponding to the forefront one pitch as a reference image and compares the image data of a comparison image recorded later than the reference image with image data of the reference image to check for image defects.

Description

technical field [0001] The present invention relates to an inspection device for detecting an image defect of the same pattern repeatedly recorded at a predetermined pitch on a long recording sheet, and an inkjet printing apparatus provided with the inspection device. Background technique [0002] Known methods of printing and dyeing long textiles are: the direct printing method using an inkjet printer to draw directly on the material; and the transfer printing method by using an inkjet printer loaded with disperse dye ink (sublimation ink) Print on special paper (transfer paper), and use a thermal transfer machine to vaporize the ink printed on the transfer paper, so that only the ink penetrates into the material (mainly polyester). [0003] Generally, textiles that have been printed and dyed as described above are subjected to an inspection process in which the presence or absence of image defects is checked. In the existing inspection device, the conveyance of the printe...

AI Technical Summary

Problems solved by technology

In the existing inspection device, the conveyance of the printed and dyed textile is carried out automatically, but the inspection itself is through visual inspection, and there is no device that automatically inspects the entire area of ​​the textile for image defects

Therefore, it may occur that the position of the defect is overlooked and a low-quality printing and dyeing product is produced.

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