JPS59218865A - Ink jet recording apparatus - Google Patents

Ink jet recording apparatus

Info

Publication number
JPS59218865A
JPS59218865A JP9283283A JP9283283A JPS59218865A JP S59218865 A JPS59218865 A JP S59218865A JP 9283283 A JP9283283 A JP 9283283A JP 9283283 A JP9283283 A JP 9283283A JP S59218865 A JPS59218865 A JP S59218865A
Authority
JP
Japan
Prior art keywords
ink
chamber
base plate
ink chamber
ink jet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9283283A
Other languages
Japanese (ja)
Inventor
Hiroaki Yamada
博章 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9283283A priority Critical patent/JPS59218865A/en
Publication of JPS59218865A publication Critical patent/JPS59218865A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/19—Ink jet characterised by ink handling for removing air bubbles

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To obtain an ink jet head reduced in the number of parts and easy to handle, by providing a U-shaped pipe for preventing air from entering an ink chamber to a base plate equipped with ink jet nozzles, pressure chambers and the ink chamber. CONSTITUTION:Grooves 114 for nozzles, grooves 115 for pressure chambers and an orifice 116 for an ink chamber are provided to a base plate 111 so as to be communicated with each other and a U-shaped notch 120 for forming a U-shaped pipe for preventing air from entering the ink chamber is provided so as to be communicated with the orifice 116. Separate two base plate 112, 113 are connected to both sides of the base plate 111 to form an ink jet head. In this case, piezoelectric ceramics 117 for applying pressure to ink are adhered to the place corresponding to the pressure chambers of the base plate 113 while an ink supply orifice 118 is provided to the place corresponding to the ink chamber.

Description

【発明の詳細な説明】 本発明はノンインパクト記録方式の一つであるインクジ
ェット記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inkjet recording apparatus that is one of the non-impact recording methods.

一般のインクジェット記録方式を第１図に例示する。本
図のインクジェット記録方式は、インク滴６を形成し記
録紙７上に噴射するためのプリンタヘッド１と、プリン
タヘット゛の圧力室の容積を変化さぜるため圧力室上に
接着さ扛ｉζ圧電セラミックス５のＩｉＡ　ｈ）Ｊのだ
めのパルス発生器４と、プリンタヘッドにインクを供給
するインク溜り２と、前記プリンタヘッドとインク溜り
を接続するパイプ３とから構成される。A general inkjet recording method is illustrated in FIG. The inkjet recording method shown in this figure includes a printer head 1 for forming ink droplets 6 and jetting them onto a recording paper 7, and a piezoelectric material attached to the pressure chamber to change the volume of the pressure chamber of the printer head. It consists of a pulse generator 4 made of ceramics 5, an ink reservoir 2 that supplies ink to the printer head, and a pipe 3 that connects the printer head and the ink reservoir.

第２図（ａ）　、　（ｂ）および（Ｃ）は従来のインク
ジェット記録方式におけるプリンタヘッドを例示する分
解図１．斜視図およびノズル部の正面図である。インク
滴を飛び出させるノズルとインクに圧力を加えるための
圧力室と、飛び出したインクを補充するため一時的にイ
ンクを貯めておくだめのインク室とを形成するために、
基板ｌｌ上にエツチング等によ！７／ｌ１４１４．１５
および穴１６を形成し、この基板１■全基板１２と基板
１３とではさんで接合する。また、基＆１３には前記イ
ンク室の上部ｔこインク室内の１ンクに圧力を加えるた
めの圧電セラミックス５が接着されている。FIGS. 2(a), 2(b), and 2(C) are exploded views illustrating a printer head in a conventional inkjet recording system. FIG. 2 is a perspective view and a front view of a nozzle part. In order to form a nozzle for ejecting ink droplets, a pressure chamber for applying pressure to the ink, and an ink chamber for temporarily storing ink to replenish the ejected ink,
By etching etc. on the board ll! 7/l1414.15
A hole 16 is formed, and the substrate 1, the entire substrate 12, and the substrate 13 are sandwiched and bonded. Further, a piezoelectric ceramic 5 is bonded to the base &13 for applying pressure to one ink in the ink chamber at the upper part of the ink chamber.

以上の構成のインクジェットプリンタヘッドはインク室
内にインクを充填するため、インク室下部にインク供給
孔１８と、インク室内の空気を出すための空気抜き孔１
９とが設けられている。また、プリント中にインクが消
費されインク室内のインクが減った時に、上記空気抜き
孔からの空気が侵入し気泡がノズルにつまるのを防止し
、正常にインク溜りよりインクを供給するために、第３
図のような０字形管２０を空気抜き孔１９に接続するこ
とが必要となる。しかし、このようなＵ字形管はヘッド
から突出しているため、ヘッドが動く時の妨げになる場
合もあり、また接続のためにコネクタが必要になり、部
品数が多くなるなどの欠点があった。The inkjet printer head with the above configuration has an ink supply hole 18 at the bottom of the ink chamber in order to fill the ink chamber with ink, and an air vent hole 1 for releasing air from the ink chamber.
9 is provided. In addition, when ink is consumed during printing and the ink in the ink chamber decreases, the air vent hole is used to prevent air from entering the nozzle and clogging the nozzle, and to properly supply ink from the ink reservoir. 3
It is necessary to connect the O-shaped tube 20 as shown to the air vent hole 19. However, since these U-shaped tubes protrude from the head, they sometimes get in the way when the head moves, and they also require connectors for connection, which increases the number of parts. .

本発明の目的は上述の欠点を除去して、部品数が少なく
取扱いの容易なインクジェット記録装置を提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide an inkjet recording device that has a small number of parts and is easy to handle.

本発明のインクジェット記録装置はインクを噴射するノ
ズル、このノズルに連結される圧力室。The inkjet recording apparatus of the present invention includes a nozzle for ejecting ink and a pressure chamber connected to the nozzle.

この圧力室にインクを供給するインク室、前記圧力室中
のインクに圧力を加える圧電セラミックス、および、前
記インク室に連結されこの室内に空気が入るのを防止す
るＵ字形管を有するインクジェットプリンター・ラドと
、前記インク室にインクを供給１゛るインク前りとを有
することを特徴とする。An inkjet printer having an ink chamber that supplies ink to the pressure chamber, a piezoelectric ceramic that applies pressure to the ink in the pressure chamber, and a U-shaped tube that is connected to the ink chamber and prevents air from entering the chamber. The ink cartridge is characterized in that it has an ink front for supplying ink to the ink chamber.

次に図面を参照ｌ−て本発明を詳１１」に説明する。Next, the present invention will be explained in detail with reference to the drawings.

第４図は本発明の実施例におけるインクジェットプリン
タヘッドの分解図である。本図におい゛Ｃ１基板１１１
にはエツチング等により溝１１４および１１５と穴１１
６とＵ字形の切欠き１２０が形成されており、この基板
を基鈑１１２および基板１１３ではさんで接合されてい
る。前記３枚の基板を接合することにより前記溝１１４
および１１５はそれぞれノズルおよび圧力室となり、前
記穴１１６ｔまインク室に、前記切欠き１２０はＵ字形
管となる。また基板１１３上の圧力室上にはインクに圧
力を印加するための圧電セラミックス１１．７が接着し
′Ｃある。そのため、Ｕ字形管はヘッド内部に形成され
一体化されＣいるため、特に他の部品は必」決とせず、
ヘッドから突出した部分もなく簡単な栖造となる。FIG. 4 is an exploded view of an inkjet printer head in an embodiment of the present invention. In this figure, the C1 board 111
grooves 114 and 115 and hole 11 by etching etc.
6 and a U-shaped notch 120 are formed, and this substrate is sandwiched between a base plate 112 and a substrate 113 and joined together. The groove 114 is formed by bonding the three substrates together.
and 115 are a nozzle and a pressure chamber, respectively, the hole 116t is an ink chamber, and the notch 120 is a U-shaped pipe. Furthermore, a piezoelectric ceramic 11.7 for applying pressure to the ink is bonded to the pressure chamber on the substrate 113. Therefore, since the U-shaped tube is formed and integrated inside the head, other parts are not necessarily required.
There is no protruding part from the head, making it a simple Suzo.

以上詳しく説明したように本発明によれば、Ｕ字形管全
ヘッド内に一体化し°Ｃ形成することにより、部品数が
少なく取扱いも答易なインクジェット記録装置を実現で
きる。As described in detail above, according to the present invention, by integrating the U-shaped tube into the entire head and forming the ink jet recording device, an inkjet recording device with a small number of parts and easy handling can be realized.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は一般のインクジェット記録装置を例示する構成
図、第２図（ａ）および（ｂ）はそれぞれ従来のインク
ジェット記録装置におけるプリンタヘッドの分解図およ
び斜視図、第３図は従来のインクジェット記録装置の実
施例を示す構成図、第４図は本発明の実施例におけるイ
ンクジェットプリンタヘッドを示す分角イ斜視図である
。 ■・・・・・・インクジェットプリンタヘッド、２°°
゛゛インク溜り、３・・・・・・パイプ、４・・・・・
・パルス発生器、５・・・・・・圧電セラミックス、６
・・・・・・インク滴、７・・・・・・記録紙、１１〜
１３・・・・・・基板、１４・・・・・・溝、１５・・
・・・・溝、１６・・・・・穴、１８・・°・・°イン
ク供給孔、１９、・・・・・空気抜き穴、２０・・・・
・・Ｕ字形管、１１１〜１１３・・・・・・基板、１１
４・・・・・・溝、１１５・・・・・・詩、１１６・・
・・・・穴、１１７・・・・・・圧電セラミックス％　
１１８・・・・・・インク供給孔、１２０・・・・・・
Ｕ字形の切り欠き。 代理人　弁理士　　内　原　　　立　　　゛・°Ｉ 、７ノ 第７図 （鱒FIG. 1 is a block diagram illustrating a general inkjet recording device, FIGS. 2(a) and (b) are an exploded view and a perspective view of a printer head in a conventional inkjet recording device, and FIG. 3 is a conventional inkjet recording device. FIG. 4 is a block diagram showing an embodiment of the apparatus, and FIG. 4 is a perspective view showing an inkjet printer head in an embodiment of the present invention. ■・・・・・・Inkjet printer head, 2°°
゛゛Ink reservoir, 3...Pipe, 4...
・Pulse generator, 5...Piezoelectric ceramics, 6
...Ink droplets, 7...Recording paper, 11~
13...Substrate, 14...Groove, 15...
...Groove, 16 ... Hole, 18 ... ° ... ° Ink supply hole, 19 ... Air vent hole, 20 ...
... U-shaped tube, 111-113 ... Board, 11
4...Groove, 115...Poetry, 116...
... Hole, 117 ... Piezoelectric ceramics%
118... Ink supply hole, 120...
U-shaped cutout. Representative Patent Attorney Tate Uchihara ゛・°I, Figure 7 of 7 (Trout

Claims (1)

【特許請求の範囲】[Claims] インクを噴射するノズル、このノズルに連結される圧力
室、この圧力量にインクを供給するインク室、前記圧力
室中のインクに圧力を加える圧電セラミックス、および
、前記インク室に連結されこの室内に空気が入るのを防
止するＵ字形管を有するインクジェットプリンタヘッド
と、前記インク室にインクを供給するインク溜りとを有
することを特徴とするインフジエラ」記録装置。a nozzle that ejects ink, a pressure chamber connected to this nozzle, an ink chamber that supplies ink to this pressure amount, a piezoelectric ceramic that applies pressure to the ink in the pressure chamber, and a piezoelectric ceramic that is connected to the ink chamber and inside this chamber. 1. An infusiera recording device comprising an inkjet printer head having a U-shaped tube to prevent air from entering, and an ink reservoir for supplying ink to the ink chamber.
JP9283283A 1983-05-26 1983-05-26 Ink jet recording apparatus Pending JPS59218865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9283283A JPS59218865A (en) 1983-05-26 1983-05-26 Ink jet recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9283283A JPS59218865A (en) 1983-05-26 1983-05-26 Ink jet recording apparatus

Publications (1)

Publication Number Publication Date
JPS59218865A true JPS59218865A (en) 1984-12-10

Family

ID=14065401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9283283A Pending JPS59218865A (en) 1983-05-26 1983-05-26 Ink jet recording apparatus

Country Status (1)

Country Link
JP (1) JPS59218865A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099436A (en) * 1973-12-28 1975-08-07
JPS5518277A (en) * 1978-07-27 1980-02-08 Seiko Epson Corp Liquid injection apparatus
JPS585261A (en) * 1981-06-13 1983-01-12 Konishiroku Photo Ind Co Ltd Jet head for ink jet printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099436A (en) * 1973-12-28 1975-08-07
JPS5518277A (en) * 1978-07-27 1980-02-08 Seiko Epson Corp Liquid injection apparatus
JPS585261A (en) * 1981-06-13 1983-01-12 Konishiroku Photo Ind Co Ltd Jet head for ink jet printer

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