JPS6118842U

JPS6118842U - inkjet printer

Info

Publication number: JPS6118842U
Application number: JP10243484U
Authority: JP
Inventors: 由夫井熊; 周市石黒
Original assignee: 日立精工株式会社
Priority date: 1984-07-09
Filing date: 1984-07-09
Publication date: 1986-02-03

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のインクジェットプリンタの配管系統概略
図、第２図は本考案によるインクジェットプリンタの一
実施例の配管系統概略図、第３図は第２図中のノソレブ
の開閉弁タイミングチャートである。１・・・インクタンク、２・・・加圧ポンプ、．３・・
・レギュレータ、４・・・３方ソレノイドバルブ、５・
・・ノズル、９・・・２方ソレノイドバルブ。Fig. 1 is a schematic diagram of the piping system of a conventional inkjet printer, Fig. 2 is a schematic diagram of the piping system of an embodiment of the inkjet printer according to the present invention, and Fig. 3 is a timing chart of the opening/closing valve of the nosolv in Fig. 2. . 1... Ink tank, 2... Pressure pump, . 3...
・Regulator, 4...3-way solenoid valve, 5.
...Nozzle, 9...2-way solenoid valve.

Claims

[Scope of utility model registration request]

In an inkjet printer, ink is sucked from a tank, adjusted to a predetermined ink pressure, passed through a three-way solenoid valve for controlling the start and end of ink jetting, and is jetted from a nozzle to print. A two-way solenoid valve installed in a piping system that returns ink corresponding to an increase in ink pressure between the solenoid valve and the nozzle to the tank through the three-way solenoid valve, and a two-way solenoid valve that starts ink jetting. An inkjet printer characterized in that it is equipped with a control means that opens the valve at least for a certain period of time before the start of ink ejection when the ink jet is started, and opens the valve for a certain period of time before and after the end of the ink ejection when the initial ejection ends.