Ink cartridge and ink-jet printer

Abstract

The invention provides an ink cartridge and an ink-jet printer. the ink cartridge comprises a shell, a first sealing film, a second sealing film, a porous material and a one-way valve arranged in a containing cavity. The shell is provided with the containing cavity and a deformable cavity located in the containing cavity. The shell is provided with an ink outlet communicating with the containing cavity, an inflation opening communicating with the deformable cavity, a first air guide opening, a second air guide opening and a leakage-proof ventilation structure. The first air guide opening is sealed by the first sealing film, and the second air guide opening is sealed by the second sealing film. The leakage-proof ventilation structure is provided with a first runner communicating with the first air guide opening and a first through opening of the one-way valve and a second runner communicating with the second air guide opening and the containing cavity. In the circulation direction of the second runner, at least one part of the porous material is located between the second air guide opening and the containing cavity. A second through opening of the one-way valve communicates with thecontaining cavity. When the one-way valve is in a conducting state, the first through opening serves as an inlet, and the second through opening serves as an outlet. The ink-jet printer is provided with the ink cartridge, and the ink cartridge has the advantages of being good in use stability and preventing ink leakage.

Description

technical field [0001] The invention relates to the technical field of printing consumables, in particular to an ink cartridge and a printer provided with the ink cartridge. Background technique [0002] The ink cartridge is used to store ink and cooperate with the inkjet printer to print the preset printing results on relevant media. For example, the patent document whose publication number is CN203157372U discloses a kind of ink cartridge, which includes a housing and a one-way valve; The ink storage chamber is provided with a partition, which divides the ink storage chamber into a first ink storage chamber and a second ink storage chamber, and the deformable chamber is located in the first ink storage chamber and communicates with the inflation port on the casing. , the first ink storage chamber communicates with the ink outlet on the housing, and the second ink storage chamber is provided with an ink inlet; the one-way valve includes a valve chamber arranged on the hous...

AI Technical Summary

Problems solved by technology

However, the one-way valve has many components, which makes it difficult to ensure the sealing of the assembly device, and due to the existence of the partition, the ink cartridge is prone to the following problems during use:

[0003] When the deformable cavity expands, it will compress the ink instantly, but because the one-way valve is in the closed state at this time, and the partition isolates the flow of ink between the first ink storage cavity and the second ink storage cavity, the pressure of the ink It will act on the shell, which will cause cracks in the weld between the face cover and the body and / or the weld between the body and the valve cover, which will cause the shell to burst and leak ink. At the same time, the ink will reversely squeeze the deformable cavity, making the The thin film of the deformable chamber is easy to rupture due to excessive force; moreover, because the one-way valve is the only flow path between the first ink storage chamber and the second ink storage chamber, when the one-way valve fails, the second The ink in the second ink storage chamber cannot enter the first ink storage chamber, which greatly shortens the service life of the ink cartridge

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