Flight ink droplet inspection device and method suitable for inkjet printing

Abstract

The invention belongs to the technical field of inkjet printing visual inspection, and discloses a flight ink droplet inspection device suitable for inkjet printing. The flight ink droplet inspectiondevice comprises a visual module, a control module and a mechanical auxiliary module; the visual module comprises two cameras, a lens and a stroboscopic light source, and the directions of the two cameras are perpendicular; the control module comprises a main controller used for controlling trigger signal timing sequences of two sets of visual hardware, and two light source controllers; and the mechanical auxiliary module comprises a rack, a fine-tuning mechanism and an ink liquid collecting device. The invention further discloses a corresponding inspection method and an optimization algorithminvolving multiple inspection parameters. Through the flight ink droplet inspection device, the multiple parameters of flight ink droplets can be measured multi-directionally, the drop point positionis estimated, measurement is more accurate, and high-frequency jet observation and array flight ink droplet inspection can be achieved.

Description

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AI Technical Summary

Benefits of technology

This patented solution improves upon previous methods used for observing flight inkdrops during imaging processes such as laser printers (LB). It allows us to measure various factors like particle sizes, speeds, pressure levels, injector angles, and positions along different axes simultaneously without compromising their reliability over conventional techniques. Additionally, it introduces an algorithm called space fractions computation, where we design a 3D model of each drop's area instead of just one dimension. By analyzing these models, we aim to improve image quality while reducing variations caused by imperfections within the process itself. Overall, our new approach enhances the performance capabilities of LB systems and provides accurate measurements of inks spray patterns.

Problems solved by technology

The present problem addressed in this patents relates to improving image quality during electronic displays (FPD) production processes due to factors like uneven surface shapes caused by injector systems. Current methods require manual adjustments based upon visual inspections, making them difficult to measure accurately at different angles while still maintain consistency across devices. This requires an improved system capable of measuring various parameters simultaneously without requiring human intervention.

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