Circulating ink path system for ink-jet printer and ink path circulating method

Abstract

The invention discloses a circulating ink path system comprising an ink storage bottle, an ink jet assembly, a backflow ink bottle, a first feeding pipe, a second feeding pipe, a third feeding pipe and a fourth feeding pipe. The ink storage bottle is provided with an ink filling port; the ink jet assembly comprises an ink bag for temporarily storing ink and a spray head, and the ink bag is provided with T-shaped pipe fittings communicating with the pipes; the backflow ink bottle stores the ink left after consumption by the ink jet assembly; the first feeding pipe is provided with a first valve, and the ink storage bottle conveys the ink to the ink jet assembly through the first feeding pipe; the second feeding pipe communicates with the first feeding pipe and the ink jet assembly through the T-shaped pipe fittings, and the ink left after partial consuming is conveyed to the backflow ink bottle through the second feeding pipe; the third feeding pipe is provided with a self-priming pump, and the ink in the backflow ink bottle is sent back to the ink storage bottle through the third feeding pipe; and the fourth feeding pipe is provided with a second valve, and the negative pressure in the backflow ink bottle is supplied to the ink storage bottle, so that the residual ink in the first feeding pipe and the second feeding pipe is conveyed to the backflow ink bottle, and two loops are formed to be used for removing ink trapped in the system.

Description

technical field [0001] The invention relates to the application technical field of printers, in particular to an ink circulation system and an ink circulation method for an inkjet printer. Background technique [0002] Imaging devices such as inkjet printers, such as printers, drop printing ink onto printing media such as paper or fabric to form patterns of desired colors. [0003] Generally, an inkjet printer is provided with an ink cartridge and a pipeline used in conjunction with the ink cartridge, and uses the ink cartridge and management to deliver ink to the print head, so that the ink is sprayed on the print medium. In the aforementioned structure, the printer head is usually in normal atmosphere The ink is supplied under pressure. When the printer stops using, there will inevitably be some ink remaining in the pipeline. Because the ink used in the inkjet printer is made of pigments, multiple additives and water, because of its different density, it will last for a lo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ink circulation system and an ink circulation method for an inkjet printer, aiming at solving at least one technical problem in the background art, by setting two circulations, the ink retained in the pipeline can be Pull out to solve the problem of pipeline blockage, simultaneously solve the problem of ink cut-off in the printer, and save ink

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