Printing defect compensation method and system based on pcb inkjet printer

Abstract

The embodiment of the invention discloses a printing defect compensating method and system based on a PCB ink-jet printer. The method comprises the following steps that S1, printing resolution, nozzledefect information and an image data matrix are acquired, and the position sequence H of defective nozzles are counted; S2, the column position V of the image data matrix which is not output due to the nozzle defect is recorded according to the nozzle defect information of spray heads; S3, according to the column position V and the position sequence H of the defective nozzles, the corresponding relation between missing data and the normal nozzles in the printing compensating process is calculated to obtain starting column positions c of paired printing compensating image data matrixes and a non-defective starting nozzle position h; and S4, printing compensating Pass data arrangement is reconstructed, and is added into a to-be-printed data sequence P. According to the printing defect compensating method and system based on the PCB ink-jet printer, the missing PCB image data are supplemented for the PCB ink-jet printer, the integrity of the printing PCB image data can be ensured, the service lives of the spray heads of the PCB ink-jet printer are prolonged, and the production cost of the PCB industry is reduced.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to a printing defect compensation method and system based on a PCB inkjet printer. Background technique [0002] PCB character inkjet printer is the application of computer technology in the PCB industry. It can not only produce PCB boards conveniently and quickly, but also benefit the environmental protection of "pollution reduction and emission reduction". The competitiveness of the PCB industry can reduce the cost of the enterprise and increase the profit of the enterprise, thereby enhancing the core competitiveness of the enterprise. [0003] The inkjet printing system is an indispensable and important module in the PCB character inkjet printer. The function of inkjet printing is to print the data matrix in a certain arrangement on the PCB board through the nozzle, so as to print a specific image on the PCB board and achieve the purpose of PCB image transfer. [0004] ...

AI Technical Summary

Problems solved by technology

[0004] At present, when the individual nozzles of the nozzle are defective, the effect of PCB image printing will be lost

In order to ensure the printing quality of the PCB image, there are two existing solutions: (1) Use multiple nozzles to overlap to make up for it, but the defective nozzles still do not discharge ink, resulting in data loss and lower printing quality

(2) Replace the old nozzle with a new nozzle, although the printing quality is guaranteed, but the cost is increased

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