A printing platform of an inkjet printing device

Abstract

The present invention relates to the field of printers, in particular to a printing platform, the printing platform is located between the paper feeding platform and the paper output platform, and the printing platform is provided with several raised planes and concaves on the side contacting the printing medium. plane, the convex plane and the concave plane are arranged alternately along the X direction of the printing platform, and the convex plane and the concave plane straddle the Y direction of the printing platform; the paper output end of the concave plane is an opening setting of. The invention well solves the problem of drumming of ink-jet printing media that has long plagued the industry, especially large-ink-volume and wide-width printing equipment. Through the breakthrough non-planar concave-convex design of the platform itself, it is cleverly based on the bulging deformation of the in-situ absorption medium. The original concern in the industry is that the unevenness of the platform will affect the printing effect. Since the ink droplets fly vertically downward, within a certain stroke, the slight height difference can be ignored. The actual test also proves that the printing effect is better than the original.

Description

technical field [0001] The invention relates to the field of printers, in particular to a medium supporting inkjet printing platform of inkjet printing equipment. Background technique [0002] As the main equipment of digital printing, printers are used more and more widely. As the mainstream of printing equipment, inkjet printing can realize printing on various media, such as various papers, polymer film media and films, various types of cloth, etc., and it is playing an increasingly important role. Because color inkjet has high requirements for color reproduction, the general printing medium is to control the diffusion of ink droplets and absorb ink by coating or treating agent on the surface of the substrate. For paper or other water-absorbing media whose media substrate is plant fiber, after inkjet, the substrate will expand and deform due to the absorption of ink, and cause local swelling on the printing platform. The light ones will affect the printing accuracy, and t...

AI Technical Summary

Problems solved by technology

[0009] Defects of the existing technology: after the water-absorbing medium absorbs the ink, the substrate will swell, and due to the combined action of the medium being pushed out by the paper feed wheel and the winding tension in the paper delivery direction, the medium will move in the paper feeding direction (Y direction) Irregular vertical arching drums are produced, which affects the printing quality

When the local drum height is high, it will scratch the print head and cause the screen to be scrapped

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