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Double-negative-pressure ink circulation printer

A printer and negative pressure technology, applied in printing devices, printing and other directions, can solve the problems of nozzle bubbles, broken needles, large disturbances, etc., and achieve the effects of slowing down disturbances, reducing disturbances, and reducing bubbles

Pending Publication Date: 2022-06-07
SHENZHEN RUNTIANZHI DIGITAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the printer uses an ink supply pump to extract the ink in the first ink cartridge and transport it to the second ink cartridge, and the ink is delivered from the second ink cartridge to the nozzle for printing. Larger disturbances can easily cause air bubbles at the nozzle and needle breakage

Method used

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  • Double-negative-pressure ink circulation printer

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Embodiment Construction

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention, the technical solution in the embodiments of the present invention will be described clearly and completely, it is clear that the embodiments described are only a part of the embodiment of the present invention, not all embodiments. Based on embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work, are within the scope of protection of the present invention.

[0022] In order to enable those skilled in the art to better understand the present invention, the present invention will be further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Please refer to Figure 1 ， Figure 1 Schematic diagram of a double negative pressure ink circulation printer provided for an embodiment of the present invention.

[0024] The present invention provid...

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PUM

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Abstract

The invention discloses a double-negative-pressure ink circulation printer which comprises a first-stage ink barrel, a second-stage ink box, a nozzle and a circulation ink box. A first ink conveying mechanism for conveying ink to the second-stage ink box is connected between the first-stage ink barrel and the second-stage ink box; a second ink conveying mechanism for conveying ink to the primary ink barrel is connected between the circulating ink box and the primary ink barrel; the secondary ink box is arranged above the spray head and connected with a first negative pressure mechanism, and the circulating ink box is connected with a second negative pressure mechanism used for sucking ink at the spray head. The double-negative-pressure ink circulation printer can reduce the phenomenon of needle breakage of the nozzle and ensure normal operation of the printer.

Description

Technical field [0001] The present invention relates to the field of printers, particularly to a double negative pressure ink circulation printer Background [0002] In the application of digital printers, the ink will have precipitation, and over time or accumulation will cause blockages, and serious nozzles will be scrapped. There is also a situation that the nozzle is not used for a short time (such as one night or, one or two days), the temperature change of the outside world will make the ink have bubbles precipitate, if the ink is not circulating, the nozzle will appear to break the needle phenomenon. Broken needle refers to the ink in the nozzle when there is air in the nozzle or the amount of dissolved oxygen is too high, the nozzle will appear part of the nozzle to spray out air instead of ink droplets, this scene is called a broken needle. Therefore, the ink must circulate and flow, which can reduce sedimentation and discharge air bubbles. In the prior art, the printer ...

Claims

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Application Information

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IPC IPC(8): B41J2/175B41J2/18B41J29/46
CPCB41J2/17506B41J2/17566B41J2/185B41J29/46
Inventor 陶阳蒙文雯余茂基曾龙飞江洪
Owner SHENZHEN RUNTIANZHI DIGITAL EQUIP
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