JPS61164838A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS61164838A
JPS61164838A JP678785A JP678785A JPS61164838A JP S61164838 A JPS61164838 A JP S61164838A JP 678785 A JP678785 A JP 678785A JP 678785 A JP678785 A JP 678785A JP S61164838 A JPS61164838 A JP S61164838A
Authority
JP
Japan
Prior art keywords
paper
air
ink jet
printing
port
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
JP678785A
Other languages
Japanese (ja)
Inventor
Masatoshi Yasuhara
安原　正俊
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
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 filed Critical NEC Corp
Priority to JP678785A priority Critical patent/JPS61164838A/en
Publication of JPS61164838A publication Critical patent/JPS61164838A/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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements

Abstract

PURPOSE:To prevent defective printing caused by paper dust, by a method wherein, an air blow-off port is provided toward an ink jet direction and lateral movement of the port is performed while blowing off air, thereby paper dust is kept away from the ink jet head. CONSTITUTION:The both side edges of an end face whereon the nozzle 107 of an ink jet head 101 is provided is notched slantwise and a blow-off port 111 is provide facing the front in parallel with a nozzle array. When printing is performed with the ink jet head 101 and a paper bail being moved laterally 105, and air is blown off forward from the port 111. Said air stream 112 flows toward a printing paper 103, and the air flow impinging against the paper surface, turns its flow direction by 90 deg. and flows along the paper 103. By this movement of the air flow 112 the paper dust deposited on the paper surface is wiped off. Thereby, the paper dust never adheres on a gap 108, resulting in the prevention of the occurrence of defective printing.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、インクジェットプリンタ装置用の印字ヘッド
、特にドツトマトリクスによって文字又は図形を形成す
る印字ヘッドに用いられるインクジェットヘッドに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a print head for an inkjet printer, and particularly to an inkjet head used for a printhead that forms characters or figures using a dot matrix.

〔従来の技術〕[Conventional technology]

近年、オフィスオートメーションの普及により事務所内
で文書等を作成し、その場で印字する要求が高まってお
り、室内を静粛に保つため、低騒音かつ印字品位の良好
なプリンタが求められている。また、パーソナルコンピ
ュータの普及によりカラーディスプレイ上の文字及び図
形をカラーで出力する要求が高ま、っており、これらの
要求を満たすプリンタの一つとして、インクジェットプ
リンタが実用化されている。In recent years, with the spread of office automation, there has been an increasing demand for documents to be created and printed on the spot in the office, and in order to keep the room quiet, there is a need for printers with low noise and good print quality. Furthermore, with the spread of personal computers, there is an increasing demand for outputting characters and figures on color displays in color, and inkjet printers have been put into practical use as one of the printers that meet these demands.

第３図はインクジェットヘッドの斜視図でアル。Figure 3 is a perspective view of the inkjet head.

ノズル端面６の前方に位置する様に紙押え２が固定しで
ある。このインクジェットヘッドｌと、紙押え２が第４
図の様にプラテン４に巻きつけられた印字用紙３に対し
て矢印５のように横送りされて印字している。A paper presser 2 is fixed so as to be located in front of the nozzle end face 6. This inkjet head l and paper presser 2 are connected to the fourth
As shown in the figure, the printing paper 3 wound around the platen 4 is fed horizontally in the direction of the arrow 5 to print.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

印字の際に、第５図のように印字用紙の紙粉９（特にコ
ート紙やミシン目付折りたたみ用紙の場合）がノズル出
ロアに付着したり、インクジェットヘッドｌと紙押え２
とのすき間８に紙粉１０が付着、堆積してゆき、やがて
ノズル出ロアを覆ったりして印字（インクの噴出）を妨
たげることがあるという欠点があった。During printing, as shown in Figure 5, paper dust 9 from the printing paper (especially in the case of coated paper or perforated folding paper) may adhere to the nozzle output lower, or cause damage to the inkjet head l and paper presser 2.
Paper dust 10 adheres to and accumulates in the gap 8 between the nozzle and the nozzle, and may eventually cover the nozzle ejection lower part, thereby interfering with printing (ink jetting).

本発明はインク滴噴出方向に空気を噴出しながら、イン
クジェットヘッドの横送り動作を行なうコトニより、イ
ンクジェットヘッドに紙粉を寄せつけない様にして紙粉
による印字不良の発生を防止したインクジェットヘッド
を提供するものである。The present invention provides an inkjet head that prevents paper dust from coming close to the inkjet head by moving the inkjet head horizontally while jetting air in the direction of ink droplet jetting, thereby preventing the occurrence of printing defects due to paper dust. It is something to do.

〔問題点を解決するための手段〕[Means for solving problems]

本発明はインクジェットヘッドのノズルの近傍に、イン
クの噴出方向に向けて紙粉払拭用空気を噴射する噴出孔
を設けたことを特徴とするインクジェットヘッドである
。The present invention is an inkjet head characterized in that an ejection hole for ejecting paper dust wiping air in the direction of ink ejection is provided near the nozzle of the inkjet head.

〔実施例〕〔Example〕

次に、本発明の一実施例について図面を参照して説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.

第１図、第２図において、インクジェットヘッド１０１
のノズル１０７を設けた端面の両側縁を斜めに切り欠き
、該切欠端面に噴出孔１１１をノズル列と平行に前方に
向けて設ける。In FIGS. 1 and 2, an inkjet head 101
Both side edges of the end face on which the nozzles 107 are provided are cut out diagonally, and ejection holes 111 are provided in the cut end face facing forward parallel to the nozzle row.

実施例において、インクジェットヘッド１０１及び紙押
え１０２に横送り１０５を与えて印字を行う際に、噴出
孔１１１より空気を前方に噴出させる。この空気流１１
２はノズル端面１０６より第２図に示すように、紙押え
１０２を越えて印字用紙１０３に向けて流れ、印字用紙
１０βに、接触してからその流れが９０°切り換り、印
字用紙１０３に沿って流れる。したがって、紙面に付着
した紙粉はこの空気流１１２によって払拭され、ノズル
１０７、インクジェットヘッド１０１と紙押え１０２と
のすき間１０８に付着することがない。In the embodiment, air is ejected forward from the ejection holes 111 when performing printing by giving the inkjet head 101 and the paper presser 102 a lateral feed 105. This air flow 11
2 flows from the nozzle end face 106 to the printing paper 103 over the paper presser 102, as shown in FIG. flows along. Therefore, paper dust adhering to the paper surface is wiped away by this airflow 112 and does not adhere to the gap 108 between the nozzle 107, the inkjet head 101, and the paper presser 102.

〔発明の効果〕〔Effect of the invention〕

本発明は以上説明した様に空気を噴出しつつ、インクジ
ェットヘッドを横送りすることにより、紙粉によって印
字不良が発生することを防ぐことができるという効果が
ある。As described above, the present invention has the effect of preventing printing defects caused by paper powder by horizontally feeding the inkjet head while blowing out air.

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

第１図は本発明によるインクジェットヘッドのノズル出
口近傍の斜視図、第２図は空気噴出口より噴出した空気
の流れを示す図、第３図は従来のインクジェットヘッド
を示す斜視図、第４図は従来のインクジェットヘッドの
印字用紙に対する横送り動作を説明する斜視図、第５図
はインクジェットヘッドに付着した紙粉を示す正面図で
ある。 １０１・・・インクジェットヘッド、１０２・・・紙押
え、１ｏ３・・・印字用紙、１０６・・・ノズル端面、
１０７・・・ノズル特許出願人　　日本電気株式会社 第２図 第３図 第５図FIG. 1 is a perspective view of the vicinity of the nozzle outlet of an inkjet head according to the present invention, FIG. 2 is a diagram showing the flow of air ejected from the air jet port, FIG. 3 is a perspective view of a conventional inkjet head, and FIG. 4 5 is a perspective view illustrating the cross-feeding operation of a conventional inkjet head for printing paper, and FIG. 5 is a front view illustrating paper dust adhering to the inkjet head. 101... Inkjet head, 102... Paper presser, 1o3... Printing paper, 106... Nozzle end surface,
107...Nozzle patent applicant NEC Corporation Figure 2 Figure 3 Figure 5

Claims (1)

【特許請求の範囲】[Claims] （１）インクジェットヘッドを横方向に走査させながら
、ドットにより文字又は図形等を印字するプリンタ装置
において、前記インクジェットヘッドのノズルの近傍に
、インクの噴出方向に向けて紙粉払拭用空気を噴射する
噴出孔を設けたことを特徴とするインクジェットヘッド
。(1) In a printer device that prints characters or figures using dots while horizontally scanning an inkjet head, air for wiping paper dust is ejected near the nozzle of the inkjet head in the direction of ink jetting. An inkjet head characterized by having jet holes.
JP678785A 1985-01-18 1985-01-18 Ink jet head Pending JPS61164838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP678785A JPS61164838A (en) 1985-01-18 1985-01-18 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP678785A JPS61164838A (en) 1985-01-18 1985-01-18 Ink jet head

Publications (1)

Publication Number Publication Date
JPS61164838A true JPS61164838A (en) 1986-07-25

Family

ID=11647884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP678785A Pending JPS61164838A (en) 1985-01-18 1985-01-18 Ink jet head

Country Status (1)

Country Link
JP (1) JPS61164838A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04125902U (en) * 1991-05-08 1992-11-17 スガツネ工業株式会社 Caster lock indicator
US5519420A (en) * 1992-12-21 1996-05-21 Ncr Corporation Air system to protect ink jet head
EP1273449A3 (en) * 2001-07-06 2003-08-13 Illinois Tool Works Inc. Low debris fluid jetting system
US6890053B2 (en) 2003-03-28 2005-05-10 Illinois Tool Works, Inc. Positive air system for inkjet print head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04125902U (en) * 1991-05-08 1992-11-17 スガツネ工業株式会社 Caster lock indicator
JPH085843Y2 (en) * 1991-05-08 1996-02-21 スガツネ工業株式会社 Castor lock display
US5519420A (en) * 1992-12-21 1996-05-21 Ncr Corporation Air system to protect ink jet head
EP1273449A3 (en) * 2001-07-06 2003-08-13 Illinois Tool Works Inc. Low debris fluid jetting system
US6890053B2 (en) 2003-03-28 2005-05-10 Illinois Tool Works, Inc. Positive air system for inkjet print head

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