Inkjet recording device

Patent metadata

Field	Value
Publication number	US-10703095-B2
Application number	US-201716349117-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Dec 8, 2016
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

The purpose of the present invention is to provide an inkjet recording device that is capable of minimizing contamination, by floating ink, of the inside and outside of a print head without increasing the volatilization volume of a solvent. In order to attain the purpose, provided is an inkjet recording device having: a nozzle which applies print onto a printing medium by discharging ink; and a print head which houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the inkjet recording device being provided with an ink suction unit which sucks in floating ink by means of the electrostatic force.

First claim

The invention claimed is:

1. An inkjet recording device having a nozzle that applies print onto a printing medium by discharging ink and a print head that houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the device comprising:
an ink suction unit that sucks in floating ink by means of the electrostatic force;
wherein the ink suction unit is provided inside the print head.

2. The inkjet recording device according to claim 1 ,
wherein the floating ink is ink that has once come into contact with a printing medium.

3. The inkjet recording device according to claim 1 ,
wherein the ink suction unit is an electrode and electrically connected to a high voltage source.

4. The inkjet recording device according to claim 1 ,
wherein an ink adsorption member is provided outside a head cover of the print head, in an ink discharge direction of the nozzle of the ink suction unit.

5. The inkjet recording device according to claim 4 ,
wherein the ink adsorption member is provided with a replaceable structure.

6. The inkjet recording device according to claim 1 ,
wherein an insulator is provided in an ink discharge direction of the nozzle of the ink suction unit.

7. The inkjet recording device according to claim 1 ,
wherein the ink suction unit protrudes from a head cover of the print head to the outside.

8. The inkjet recording device according to claim 1 ,
wherein the ink suction unit is an electrode, and an insulator is coated on a surface of the ink suction unit.

9. An inkjet recording device having a nozzle that applies print onto a printing medium by discharging ink and a print head that houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the device comprising:
an ink suction unit that sucks in floating ink by means of the electrostatic force;
wherein a distal end of the ink suction unit protrudes from a distal end of an ink deflection unit, which is a distal end portion of the deflection electrode electrically connected to a high voltage source, in an ink discharge direction of the nozzle.

10. The inkjet recording device according to claim 9 ,
wherein the ink deflection unit and the ink suction unit are connected to the same high voltage source.

11. The inkjet recording device according to claim 10 , wherein the ink deflection unit and the ink suction unit are integrated.

Assignees

• Hitachi Industry Equipment Systems Co Ltd

Inventors

• Matsushita Takehiko
• Okano Mamoru
• Igari Mitsuo
• Arima Takahiro

Classifications

• B41J2/08 Primary

  charge-control type · CPC title

• B41J2/085

  Charge means, e.g. electrodes · CPC title

• B41J2002/1853

  ink collectors for continuous Inkjet printers, e.g. gutters, mist suction means · CPC title

• B41J2/025 Primary

  by vibration · CPC title

• B41J2/185

  Ink-collectors; Ink-catchers · CPC title