JPS6225054A - Ink jet printer - Google Patents

Ink jet printer

Info

Publication number
JPS6225054A
JPS6225054A JP16465185A JP16465185A JPS6225054A JP S6225054 A JPS6225054 A JP S6225054A JP 16465185 A JP16465185 A JP 16465185A JP 16465185 A JP16465185 A JP 16465185A JP S6225054 A JPS6225054 A JP S6225054A
Authority
JP
Japan
Prior art keywords
nozzle
ink
capping
turned
jet printer
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
JP16465185A
Other languages
Japanese (ja)
Inventor
Koichi Takahashi
弘一 高橋
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP16465185A priority Critical patent/JPS6225054A/en
Publication of JPS6225054A publication Critical patent/JPS6225054A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16505Caps, spittoons or covers for cleaning or preventing drying out
    • B41J2/16508Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame

Landscapes

  • Ink Jet (AREA)

Abstract

PURPOSE:To protect a nozzle at conveying time, to effectively prevent ink in a nozzle from drying, and to prevent the ink from not exhausting at reusing time by capping and intaking the nozzle before the power source of an ink jet printer is turned OFF. CONSTITUTION:A connector 83 for protecting the end of a nozzle and preventing ink from drying in a capping unit 20 of an ink jet printer is connected through a passage 83A with an intaking mechanism 85 such as a pump. When a capping command is applied, a carriage moves to its home position, and a nozzle 72 opposes to the connector 83. When the cap 83 is connected with the nozzle 72, atmosphere is fed to the nozzle 72 to move backward ink I in the nozzle 72. The nozzle 72 intakes by the passage 83A and a pump 85 in this state, air in the nozzle 72 can be removed. Since a power source is turned OFF in the state that the ink always fully fills, it can prevent the printer from not exhausting the ink at reusing time.

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に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to an inkjet printer.

[従来の技術] インクジェットプリンタにおいて、そのインク吐出ヘッ
ドからのインクの不吐出を予防する方式としては、例え
ば、ヘッドのノズル部にキャッピングを施したり、ある
いはノズルを冷却することにより乾燥を防止するもの等
がある。
[Prior Art] In an inkjet printer, methods for preventing ink from being ejected from the ink ejection head include, for example, capping the nozzle portion of the head or cooling the nozzle to prevent drying. etc.

[発明が解決しようとする問題点] しかしながら、ノズルの先端を冷却しインクの蒸発を防
ぐ方式では、未使用時においても常時冷却しておく必要
があり、また冷却装置を付加する必要もあるので、イン
クジェットプリンタの大形化、高価格化、運転費用の増
大等の欠点が生じる。
[Problems to be solved by the invention] However, in the method of cooling the tip of the nozzle to prevent ink from evaporating, it is necessary to keep the nozzle constantly cooled even when not in use, and it is also necessary to add a cooling device. However, there are disadvantages such as an increase in the size of the inkjet printer, an increase in price, and an increase in operating costs.

一方、ノズル部にキャッピングを施す方式においては、
プリンタの搬送時にノズル先端が確実に保護されること
、ならびにノズル内のインクの乾燥を防止できることな
どの利点がある反面、キャッピングの条件、すなわちキ
ャップを閉じる速度や密封性によってはノズルに満たさ
れたインクがノズルの奥へ押し込まれ、それによって使
用開始時に不吐出が生じるという問題点がある。
On the other hand, in the method of capping the nozzle part,
Although it has the advantage of reliably protecting the nozzle tip during printer transportation and preventing the ink inside the nozzle from drying out, depending on the capping conditions, that is, the speed at which the cap is closed and the sealing performance, the nozzle may be filled with water. There is a problem in that the ink is forced deep into the nozzle, which causes non-ejection at the beginning of use.

[問題点を解決するための手段] 本発明はインクジェットのヘッドに対してキャッピング
を行う方式の利点を生かすと共に、キャッピング条件を
適切に定めて当該方式の問題点を解決し、確実な不吐出
の予防を行うことができるインクジェットプリンタを提
供することを目的とする。
[Means for Solving the Problems] The present invention makes use of the advantages of the method of capping an inkjet head, and solves the problems of this method by appropriately determining the capping conditions, thereby ensuring reliable ejection failure. An object of the present invention is to provide an inkjet printer that can take precautions.

かかる目的を達成するために、本発明では、記録媒体の
記録面に対してインクを噴射する噴射部100Aを有す
る液体噴射記録手段100と、液体噴射記録手段100
の噴射部100Aに接合可能な接合部材110と、接合
部材110に接続され、当該接合時において噴射部10
0Aから吸引を行う吸引手段120と、電源125の遮
断前に接合および吸引を行わせる制御手段130とを具
えたことを特徴とする。
In order to achieve such an object, the present invention includes a liquid jet recording means 100 having a jetting section 100A that jets ink onto a recording surface of a recording medium;
a joining member 110 that can be joined to the injection part 100A; and a joining member 110 that is connected to the joining member 110 and that
It is characterized by comprising a suction means 120 that performs suction from 0A, and a control means 130 that performs bonding and suction before shutting off the power source 125.

[作 用] すなわち、木発明では、電源125をオフとする場合、
液体噴射記録手段+00の噴射部100Aに接合部材1
10が接合し、吸引手段120により吸引が行われてか
ら電源125をオフとされるので、非使用時には接合部
材110により覆われた噴射部100Aにインクが充満
した状態が保たれ、従って再使用に際してインク不吐出
が生じることがない。
[Function] In other words, in the wooden invention, when the power supply 125 is turned off,
The joining member 1 is attached to the ejection part 100A of the liquid ejection recording means +00.
10 are joined and suction is performed by the suction means 120, and then the power supply 125 is turned off, so that when not in use, the ejection part 100A covered by the joining member 110 is kept filled with ink, and therefore can be reused. No non-discharge of ink occurs during this process.

[実施例] 以下、図面を参照して木発明の詳細な説明する。[Example] Hereinafter, the tree invention will be described in detail with reference to the drawings.

第・2図は本発明インクジェットプリンタの主要部の一
構成例を示す、ここで、1はキャリッジ2に搭載した液
体噴射記録ユニットであり、インク供給源から供給され
たインクを貯留する貯留部と、その貯留されたインクを
噴射するノズル部等噴射部を設けた記録ヘッドとを有す
る。このユニット1を、例えば、インク色に応じて2個
備える。6は第3図示の制御部と液体噴射記録ユニット
1とを接続するフレキシブルケーブルである。
FIG. 2 shows an example of the configuration of the main parts of the inkjet printer of the present invention. Here, 1 is a liquid jet recording unit mounted on a carriage 2, and a storage section for storing ink supplied from an ink supply source. , and a recording head provided with an ejection section such as a nozzle section that ejects the stored ink. For example, two units 1 are provided depending on the ink color. Reference numeral 6 denotes a flexible cable that connects the control section shown in the third figure and the liquid jet recording unit 1.

8は紙送りモータであり、この紙送りモータ8の駆動に
応じて、記録紙Pはローラ10.10により、図中f方
向に搬送される。12はローラ10と協動して記録紙P
を平担に規制し、液体噴射記録ユニット1に対する記録
面を形成するローラである。
Reference numeral 8 denotes a paper feed motor, and as the paper feed motor 8 is driven, the recording paper P is conveyed in the direction f in the figure by rollers 10 and 10. 12 cooperates with the roller 10 to move the recording paper P.
This is a roller that regulates the liquid jet recording surface to be flat and forms a recording surface for the liquid jet recording unit 1.

14はキャリッジ2を固定したキャリッジ駆動用のベル
ト、16はそのベルト14を図中S方向に駆動するモー
タ、18はキャリッジ2のガイドレールである。キャリ
ッジ2はモータ16の駆動に応じてガイドレール18に
沿って図中S方向に移動し、記録面に対する記録を行う
ことができる。
Reference numeral 14 indicates a belt for driving the carriage to which the carriage 2 is fixed, reference numeral 16 indicates a motor for driving the belt 14 in the S direction in the figure, and reference numeral 18 indicates a guide rail for the carriage 2. The carriage 2 can move along the guide rail 18 in the S direction in the figure in accordance with the drive of the motor 16, and can perform recording on the recording surface.

また、20は、例えば、液体噴射記録ユニット1のホー
ムポジションHにおいてユニット1と対向しノズル部と
少なくともそのインク噴射口を覆って接合可能な接合部
、および当該接合時にノズル部からインクの吸引動作等
を行う吸引機構を有するキャッピング部である。
Further, 20 is, for example, a joint part that faces the unit 1 at the home position H of the liquid jet recording unit 1 and can be joined by covering the nozzle part and at least its ink jet port, and an operation of sucking ink from the nozzle part at the time of said joining. It is a capping part that has a suction mechanism that performs such operations.

第3図は本実施例に係るプリンタの電気的構成の一例を
示す。
FIG. 3 shows an example of the electrical configuration of the printer according to this embodiment.

ここで、50は例えばマイクロコンピュータ形態の制御
部であり、例えばホストシステムからの記録信号の供給
等に応じて紙送りモータ8、キャリッジモータ1G、ユ
ニット1.キャッピング部2゜を制御する。52は第4
図示の制御手順をはじめ制御部50による各種制御手順
等を格納したROM 、 54は記録データの格納領域
や作業用望域を有するRAMである。
Here, 50 is a control unit in the form of a microcomputer, for example, which controls the paper feed motor 8, carriage motor 1G, unit 1. Controls the capping part 2°. 52 is the fourth
A ROM 54 which stores various control procedures by the control unit 50 including the illustrated control procedure is a RAM having a recording data storage area and a working area.

また、58は制御部50の指令に応じて起動およびリセ
ットされるタイマ、60はインクジェットプリンタの電
源スィッチである。
Further, 58 is a timer that is activated and reset according to commands from the control unit 50, and 60 is a power switch of the inkjet printer.

第4図は第1図および第2図示のインクジェットプリン
タによる記録処理手順の一例を示す、操作者によりスイ
ッチBOを用いて電源が投入されると、まずステップS
1にて本体各部の初期化を行った後、ステップS3にて
タイマ56をリセットし、起動する0次に、ステップS
5にてホストシステムからの記録信号の入力の有無を判
別し、肯定判定の場合にはステップS9に進み、各部8
.16およびlを適切に制御して入力された記録信号に
つき記録処理を行った後、ステップS3に復帰する。
FIG. 4 shows an example of the recording processing procedure by the inkjet printer shown in FIGS. 1 and 2. When the operator turns on the power using switch BO, first step S
After initializing each part of the main body in step S1, the timer 56 is reset and started in step S3.Next, in step S
In step S5, it is determined whether or not a recording signal is input from the host system, and in the case of an affirmative determination, the process advances to step S9, and each part 8
.. After performing recording processing on the input recording signal by appropriately controlling 16 and 1, the process returns to step S3.

一方、ステップS5にて否定判定の場合にはステップS
9に進み、タイマ56の値が所定値を越えたか否かを判
定し、否定判定の場合にはステップS5に復帰して記録
信号の入力を待つ。
On the other hand, if the determination in step S5 is negative, step S
The process proceeds to step S9, where it is determined whether or not the value of the timer 56 exceeds a predetermined value.If the determination is negative, the process returns to step S5 and waits for input of a recording signal.

タイマ58の値が所定値を越えた場合、すなわち、所定
時間経過しても記録信号が入力されない場合にはステッ
プSttに進み、キャリッジ2をホームポジションに位
置づけてキャッピング部20をユニット1に接合させ、
次いでステップS13にてインクの吸引を行い、この状
態で本体の電源をオフとする。
If the value of the timer 58 exceeds a predetermined value, that is, if no recording signal is input even after a predetermined period of time has elapsed, the process proceeds to step Stt, where the carriage 2 is positioned at the home position and the capping section 20 is joined to the unit 1. ,
Next, in step S13, ink is suctioned, and in this state, the power to the main body is turned off.

なお、操作者によりスイッチ60がオフとされた場合に
はこれを割込み信号としてステップSllおよびS13
の処理を行った後に電源をオフとすることができる。
Incidentally, when the switch 60 is turned off by the operator, this is used as an interrupt signal in steps Sll and S13.
The power can be turned off after processing.

第5図(A)〜(C)は実施例に係るキャッピング部2
0の順次の動作状態を示す、ユニット1において、71
はインク吐出エネルギを発生するためダの圧電素子、7
2はインクを吐出するためのノズル部、■はインクであ
る。またキャッピング部20において83はノズル端を
保護し、インクの乾燥を防止するための接合部であり、
連通部83Aを介してポンプ等吸引機構85に接続する
FIGS. 5(A) to 5(C) show the capping part 2 according to the embodiment.
In unit 1, 71 indicates a sequential operating state of 0.
7 is a piezoelectric element for generating ink ejection energy.
2 is a nozzle portion for ejecting ink, and ▪ is ink. Further, in the capping part 20, 83 is a joint part for protecting the nozzle end and preventing ink from drying.
It is connected to a suction mechanism 85 such as a pump via a communication portion 83A.

上述のステップSitにおいてキャップングの指令が与
えられると、キャリッジ2はホームポジションに移動し
、ノズル部72が接合部83と対向する。このとき接合
部83を例えばモータ等により駆動してノズル部72に
向けて移動させる(第5図(A))、ノズル部72にキ
ャップ83が接合すると、キャップ83を閉じる勢いや
キャップ83の形状によって逃げ道を失なった雰囲気が
ノズル72内部に侵入し、ノズル72内のインクエを後
退させる(第5図(B))。
When a capping command is given in the above step Sit, the carriage 2 moves to the home position, and the nozzle part 72 faces the joint part 83. At this time, the joining part 83 is driven by, for example, a motor and moved toward the nozzle part 72 (FIG. 5(A)). The atmosphere that has no escape route enters the inside of the nozzle 72, causing the ink in the nozzle 72 to retreat (FIG. 5(B)).

この状態で、ステップS13にて連通部83Aとポンプ
85とを利用してノズル72に吸引処理を行うことによ
り、ノズル72内に存在する空気を取り除くことができ
る。すなわち、これにより、キャッピングが施されたノ
ズル部72にはインクが常に充満した状態で電源がオフ
とされるので、装置の再使用時における不吐出を防止す
ることができるようになる。
In this state, the air present in the nozzle 72 can be removed by performing suction processing on the nozzle 72 using the communication portion 83A and the pump 85 in step S13. That is, as a result, the power is turned off while the capped nozzle portion 72 is always filled with ink, so that non-ejection can be prevented when the device is reused.

なお、本実施例においては、キャリッジに搭載された記
録ユニー、トを有する形態のシリアルタイプのインクジ
ェットプリンタについて述べたが、本発明は記録紙の幅
方向に複数の記録ユニットを具えたいわゆるフルマルチ
タイプのインクジェットプリンタにも容易に適用できる
のは勿論である。
Although this embodiment has described a serial type inkjet printer having a recording unit mounted on a carriage, the present invention is also applicable to a so-called full-multiple inkjet printer having a plurality of recording units in the width direction of the recording paper. Of course, it can be easily applied to other types of inkjet printers.

また、インク吐出エネルギ発生体としても上述の圧電素
子を用いたもののみならず、電気熱変換手段を用いたも
のであってもよいことは言うまでもない。
Furthermore, it goes without saying that the ink ejection energy generator is not limited to one using the piezoelectric element described above, but may also be one using electrothermal conversion means.

[発明の効果] 以上説明したように、本発明によれば、インクジェット
プリンタの電源をオフとする前にノズル部にキャッピン
グを行い、ノズル部に吸引処理を施してインクを充満さ
せた後に電源をオフとするようにしたので、搬送時にお
けるノズルの保護ならびにノズル内のインクの乾燥を確
実に防止できるとともに、電源オフ後の再使用に際して
も不吐出が生じないインクジェットプリンタを実現でき
る。
[Effects of the Invention] As explained above, according to the present invention, the nozzle portion is capped before the power of the inkjet printer is turned off, and the power is turned off after the nozzle portion is filled with ink by performing suction processing. Since the inkjet printer is turned off, it is possible to protect the nozzle during transportation and reliably prevent the ink inside the nozzle from drying, and it is also possible to realize an inkjet printer that does not cause ejection failure even when reused after the power is turned off.

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

第1図は本発明インクジェットプリンタの全体構成図、 第2図および第3図は、それぞれ、本発明インクジェッ
トプリンタの一実施例を示す斜視図およびブロック図、 第4図は本実施例による処理手順の一例を示すフローチ
ャート、 第5図は本実施例におけるキャッピングおよび吸引処理
の順次の状態を示す説明図である。 l・・・液体噴射記録ユニット、 2・・・キャリッジ、 20・・・キャッピング部、 50・・・制御部、 56・・・タイマ、 60・・・電源スィッチ、 72・・・ノズル部、 83・・・接合部、 100・・・液体噴射記録手段、 100A・・・噴射部、 110・・・接合部材、 120・・・吸引手段、 130・・・制御手段。 第1図 第5図
FIG. 1 is an overall configuration diagram of an inkjet printer of the present invention. FIGS. 2 and 3 are a perspective view and a block diagram showing an embodiment of an inkjet printer of the present invention, respectively. FIG. 4 is a processing procedure according to this embodiment. Flowchart showing an example. FIG. 5 is an explanatory diagram showing the sequential states of capping and suction processing in this embodiment. l... Liquid jet recording unit, 2... Carriage, 20... Capping section, 50... Control section, 56... Timer, 60... Power switch, 72... Nozzle section, 83 . . . Joint portion, 100 . . . Liquid jet recording means, 100A . Figure 1 Figure 5

Claims (1)

【特許請求の範囲】 記録媒体の記録面に対してインクを噴射する噴射部を有
する液体噴射記録手段と、 該液体噴射記録手段の噴射部に接合可能な接合部材と、 該接合部材に接続され、当該接合時において前記噴射部
から吸引を行う吸引手段と、 電源の遮断前に前記接合および前記吸引を行わせる制御
手段とを具えたことを特徴とするインクジェットプリン
タ。
[Scope of Claims] A liquid jet recording means having a jetting part that jets ink onto a recording surface of a recording medium, a joining member connectable to the jetting part of the liquid jet recording means, and a joining member connected to the joining member. An inkjet printer comprising: a suction unit that performs suction from the ejection unit during the bonding; and a control unit that causes the bonding and the suction to be performed before power is turned off.
JP16465185A 1985-07-25 1985-07-25 Ink jet printer Pending JPS6225054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16465185A JPS6225054A (en) 1985-07-25 1985-07-25 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16465185A JPS6225054A (en) 1985-07-25 1985-07-25 Ink jet printer

Publications (1)

Publication Number Publication Date
JPS6225054A true JPS6225054A (en) 1987-02-03

Family

ID=15797226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16465185A Pending JPS6225054A (en) 1985-07-25 1985-07-25 Ink jet printer

Country Status (1)

Country Link
JP (1) JPS6225054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63295265A (en) * 1987-05-27 1988-12-01 Seiko Epson Corp Ink jet recorder
US5717443A (en) * 1991-01-08 1998-02-10 Canon Kabushiki Kaisha Ink jet recording apparatus including an ink recovery system operated in correlation with the ink sheet feeding system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546541A (en) * 1977-06-16 1979-01-18 Ricoh Co Ltd Protecting device of ink jet heads
JPS6011366A (en) * 1983-07-01 1985-01-21 Canon Inc Recording apparatus using recording liquid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546541A (en) * 1977-06-16 1979-01-18 Ricoh Co Ltd Protecting device of ink jet heads
JPS6011366A (en) * 1983-07-01 1985-01-21 Canon Inc Recording apparatus using recording liquid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63295265A (en) * 1987-05-27 1988-12-01 Seiko Epson Corp Ink jet recorder
US5717443A (en) * 1991-01-08 1998-02-10 Canon Kabushiki Kaisha Ink jet recording apparatus including an ink recovery system operated in correlation with the ink sheet feeding system

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