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Inkjet head and inkjet device

An inkjet head and ink technology, applied in inking device, printing, etc., can solve the problem of damage to the durability of the insulating layer

Active Publication Date: 2022-01-21
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such an inkjet head, when charges accumulate on the surface of the insulating film, the durability of the insulating layer may be impaired due to electrochemical reaction with the ink.

Method used

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  • Inkjet head and inkjet device
  • Inkjet head and inkjet device
  • Inkjet head and inkjet device

Examples

Experimental program
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Embodiment Construction

[0014] Below, refer to Figure 1 to Figure 6 The configurations of the inkjet head 1 and the inkjet device 100 according to the first embodiment will be described. figure 1 It is an exploded perspective view of an inkjet head according to an embodiment, figure 2 is a cross-sectional view of the inkjet head. image 3 It is an explanatory diagram showing the structure and manufacturing method of a part of the inkjet head. For convenience of description, in each drawing, the structure is appropriately enlarged, reduced, or omitted.

[0015] Figure 1 ~ Figure 4 The illustrated inkjet head 1 includes a base 10 , a nozzle plate 20 having a plurality of nozzles 21 , a frame member 30 , a manifold 40 , and a pair of circuit boards 50 . The inkjet head 1 is a so-called side-shooter type share mode (shared wall) type inkjet head. In this embodiment, an example in which each pair of nozzle rows 21A, actuators 13, and circuit board 50 are respectively provided is shown as an exampl...

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Abstract

The present invention provides an inkjet head and an inkjet device capable of improving durability. An inkjet head according to one embodiment includes electrodes provided in an ink flow path, an insulating layer, and a conductive layer. The insulating layer is made of an insulating material and is disposed on a surface of the electrode on the side of the ink flow path. The conductive layer is made of a conductive material, is disposed on a surface of the insulating layer on the ink flow path side, and is grounded.

Description

technical field [0001] Embodiments of the present invention relate to an inkjet head and an inkjet device. Background technique [0002] There is known a structure in which an inkjet head for ejecting a liquid is provided with a nozzle plate having a plurality of nozzles, and a susceptor, wherein electrodes are arranged in a flow path, and the susceptor comprises a communication channel. The flow path of the pressure chamber of the nozzle. In an inkjet head, there is a need to print on various printing media, and since it needs to correspond to various inks, an electrical protective layer is sometimes provided on the electrodes so that the electrodes and the ink do not come into contact. In such an inkjet head, when charges accumulate on the surface of the insulating film, the durability of the insulating layer may be impaired due to an electrochemical reaction with the ink. Contents of the invention [0003] The problem to be solved by the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/045B41J2/14
CPCB41J2/045B41J2/14B41J2202/10
Inventor 铃木伊左雄
Owner TOSHIBA TEC KK