External ink supply integrated device

Abstract

The invention relates to an external ink supply integrated device. The external ink supply integrated device comprises an ink supply device which is used for continuously supplying ink to a printing nozzle. The external ink supply integrated device comprises a negative pressure device, wherein the negative pressure device is used for adjusting the negative pressure value in each ink cavity of a secondary ink box connected with the printing nozzle. The external ink supply integrated device comprises an electric control device. The electric control device comprises a power supply device, a control device and an interface assembly. The power supply device is connected with the ink supply device, the negative pressure device and the control device and supplies power to the ink supply device, the negative pressure device and the control device. The control device is used for controlling the ink supply device and the negative pressure device to work. The interface assembly comprises an aviation plug, and the control device is connected with a printer bus through the aviation plug. The external ink supply integrated device has the beneficial effects of being modularized and integrated, and being high in assembly flexibility, convenient to assemble and disassemble, convenient to replace and maintain, high in usability and rapid and accurate in negative pressure value adjustment.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to an external ink supply integrated device. Background technique [0002] Inkjet printers spray ink droplets on the printing medium through the nozzles to print images or text. In order to ensure continuous, stable and appropriate ink supply from the ink tank to the print nozzles, the negative pressure mode is usually used to control the ink supply to the nozzles, and the positive pressure mode is used to control the ink supply to the nozzles. Mode to inflate the clogged nozzle or flush the cleaning fluid to clear the pipeline. When printing a color pattern and the printing medium is not white, it is necessary to spray a layer of white ink on the medium as the background color, and then print the color pattern on the printing medium sprayed with white ink to ensure that the color of the pattern is bright. [0003] In the prior art, except for the secondary ink cartridges, ...

AI Technical Summary

Problems solved by technology

[0009] 1) The ink supply and negative pressure adjustment device is installed inside the printer, which increases the overall volume of the printer, resulting in an excessively large footprint and increased transportation costs;

[0010] 2) There are many wiring procedures in the electronic control part, which is prone to errors, requires high technical level of operators, and increases assembly costs;

[0011] 3) When the printer is working normally, a negative pressure system adjusts the negative pressure value of all color inks, and the adjustment efficiency is low, resulting in unstable ink supply and affecting the printing effect;

[0012] 4) After dredging the nozzles in the positive pressure mode, when switching back to the negative pressure mode, the adjustment efficiency of resetting the negative pressure value is low, and the negative pressure values ​​of many ink chambers interfere with each other, making the adjustment time longer;

[0013] 5) When repairing and replacing, the operation is troublesome, and it takes a long time for the negative pressure module to return to the negative pressure mode

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