Inkjet printing density correction method, correction device, inkjet printing method, and equipment

Abstract

The invention belongs to the technical field of printing, and in particular relates to an inkjet printing density correction method, an inkjet printing density correction device, an inkjet printing method, and an inkjet printing device. An inkjet printing density correction method, comprising: acquiring a correspondence between the actual printing grayscale of each nozzle in an inkjet printing device corresponding to an image to be printed and the ideal printing grayscale of the to-be-printed image, and according to the corresponding relationship The relationship compensates the pixel value of each printing position corresponding to each of the nozzles in the to-be-printed image, so that the density of the to-be-printed image can be consistent after printing. The invention detects the grayscale error of each nozzle or the actual printing grayscale by designing a test chart, and corrects the to-be-printed image according to the detected grayscale error or the actual printing grayscale to make up for the difference in nozzle density, so that the Visually reduce the layering caused by uneven density and improve the overall printing quality of the image.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to an inkjet printing density correction method, an inkjet printing density correction device, an inkjet printing method, and inkjet printing equipment. Background technique [0002] Ink-jet printing (Ink-jetPrinting) is an efficient special printing method. It can be used not only for daily paper printing, but also for packaging process production lines to quickly print images, text, barcodes and other content. Because inkjet printing is non-contact, pressure-free, and plate-free printing, and uses a variety of inks, its range of substrates is very wide, covering almost all kinds of printable objects. [0003] Inkjet printing equipment usually consists of a system controller, an inkjet controller, a nozzle, a substrate driving mechanism, and the like. Among them, the system controller is responsible for the work and operation of the entire inkjet printing equipment, t...

AI Technical Summary

Problems solved by technology

[0006] At present, for the problem that the printing quality is affected by uneven printing density, it is usually improved by improving the hardware precision of the inkjet printing equipment, but the improvement effect of this method is limited, and it will also cause inkjet printing Increased equipment costs

Moreover, with the increase in the use time of inkjet printing equipment and the loss of inkjet printing equipment, the accuracy of inkjet printing equipment will gradually decrease, and the improvement effect will not last.

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