Refillable ink cartridge

Abstract

The present invention provides a refillable ink cartridge. The ink cartridge comprises an ink cartridge body with an opening, a liquid storage chamber and a spray nozzle portion, wherein the liquid storage chamber is communicated between the opening and the spray nozzle portion; an ink cartridge cover plate which seals the opening of the ink cartridge body and is provided with an ink inlet hole and an air inlet hole; a pressure regulating assembly which is arranged on the ink cartridge cover plate and comprises a pressure regulating valve which is arranged on the ink cartridge cover plate, covers the air inlet hole and is provided with an accommodating groove, an air flow channel and at least one air throttle hole; and a porous material which is accommodated in the accommodating groove, wherein the adjusting assembly is located in the liquid storage chamber and used for balancing the pressure outside the liquid storage chamber and the ink cartridge body.

Description

technical field [0001] This case relates to an ink cartridge suitable for use in an inkjet printer, especially a refillable ink cartridge. Background technique [0002] Inkjet printers are widely loved by consumers because of their simple operation and convenient printing. After the current inkjet printers are used for a period of time, when the ink in the internal ink tank is exhausted, new ink needs to be replaced. cartridges, and the replaced ink cartridges are often discarded directly, but the replaced ink cartridges usually only have no ink inside to supply printing, and others such as ink cartridges, nozzles, chips, etc. may not be worn out at the same time. It is environmentally friendly and wastes a lot of otherwise undamaged and sustainable ink cartridges. [0003] In addition, the current ink cartridges are equipped with sponges as liquid storage materials, and the sponges are used to coordinate the pressure inside and outside the ink cartridges. However, the spon...

AI Technical Summary

Problems solved by technology

[0002] Inkjet printers are widely loved by consumers because of their simple operation and convenient printing. After the current inkjet printers are used for a period of time, when the ink in the internal ink tank is exhausted, new ink needs to be replaced. cartridges, and the replaced ink cartridges are often discarded directly, but the replaced ink cartridges usually only have no ink inside to supply printing, and others such as ink cartridges, nozzles, chips, etc. may not be worn out at the same time. Environmentally friendly and wastes many otherwise undamaged, sustainable ink cartridges

[0003] In addition, the current ink cartridges are equipped with sponges as liquid storage materials, and the sponges are used to coordinate the pressure inside and outside the ink cartridges. However, the sponge itself has a certain volume, so it will occupy the space in the ink cartridges, and the remaining liquid in the sponge will The ink that cannot be fully released in the ink cartridge makes the ink that can be actually used in the liquid storage chamber of the ink cartridge only account for about 60 percent

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