JPH0371851A - Ink jet printer - Google Patents
Ink jet printerInfo
- Publication number
- JPH0371851A JPH0371851A JP20815789A JP20815789A JPH0371851A JP H0371851 A JPH0371851 A JP H0371851A JP 20815789 A JP20815789 A JP 20815789A JP 20815789 A JP20815789 A JP 20815789A JP H0371851 A JPH0371851 A JP H0371851A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- printing
- platen
- ink jet
- ink
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 claims abstract description 23
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Ink Jet (AREA)
- Common Mechanisms (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明はインクジェットヘッドを用いたインクジェット
プリンタの改良に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to improvements in inkjet printers using inkjet heads.
(ロ)従来の技術
上記インクジェットプリンタでは、引力によるインク噴
出時の影響を考えると、例えば特開平1−113251
号公報にて示される様にヘッドを下方に向けて装着する
事が好ましいが、この場合には非印字時にヘッドの噴出
口にインクが溜り、印字時のインク噴出の障害となり、
又このインク溜りが多くなるとインクが滴下して用紙を
汚す等の問題がある。(b) Prior Art In the above inkjet printer, considering the influence of gravitation on ink ejection, for example, Japanese Patent Laid-Open No. 1-11325
It is preferable to install the head with the head facing downward as shown in the publication, but in this case, ink accumulates in the jet nozzle of the head during non-printing and becomes an obstacle to ink jetting during printing.
Furthermore, if this ink pool increases, there are problems such as ink dripping and staining the paper.
(ハ)発明が解決しようとする課題
本発明は上記非印字時等の待機時における、インクジェ
ットヘッドからのインク滴下防止を目的とするものであ
る。(c) Problems to be Solved by the Invention The present invention aims at preventing ink dripping from an inkjet head during standby such as during non-printing.
(ニ)課題を解決するための手段
本発明は、プラテンを略水平に配置すると共に、このプ
ラテンの上方にインクジェットヘッドを装着するものに
おいて、このインクジェットヘッドをノズルをプラテン
に対向して下方に向ける印字位置と、ノズルを略水平方
向に向ける待機位置とに回転自在に構成して成るもであ
る。(d) Means for Solving the Problems The present invention provides a device in which a platen is arranged approximately horizontally and an inkjet head is mounted above the platen, with the nozzle of the inkjet head facing downward and facing the platen. It is configured to be rotatable between a printing position and a standby position where the nozzle is oriented in a substantially horizontal direction.
(ホ)作 用
印字時にはインクジェットヘッドを、そのノズルを下方
に向けて印字を行い、一方非印字時には上記インクジェ
ットヘッドをそのノズルを略水平方向に向ける待機位置
に回転駆動する事で、非印字時等におけるノズル部分へ
のインク溜りを防止する。(E) Operation When printing, the inkjet head prints with its nozzle facing downward, while when not printing, the inkjet head is rotated to a standby position with its nozzle facing approximately horizontally. Prevents ink from accumulating in the nozzle part, etc.
(へ〉実施例
本発明の実施例を先ず第1図及び第2図に基づいて説明
すると、(1)はプリンタ本体で、上面を開口〈2)し
た下ケース(3)の開口(2)部に、給紙トレー〈4〉
、紙ガイド(5〉、プラテン(6)、排紙ガイド〈7〉
を順次配置していると共に、上記給紙トレー(4〉の紙
ガイド(5〉側には自動給紙ローラ軸(8〉を装着し、
又上記プラテン(6)の紙ガイド(5)側及び排紙トレ
イ(7〉側には各々上下一対の送紙ローラ軸(9)(9
)、排紙ローラ軸(10)(10)を装着し、これらロ
ーラ軸には各々複数の自動給紙用ローラ(11)(11
)(11)、給紙ローラ(L2)(12><12)、排
紙ローラ(13)(13)(13)を装着している。(F) Example An example of the present invention will first be explained based on FIGS. 1 and 2. (1) is the printer main body, and the opening (2) of the lower case (3) with the upper surface opened (2) In the section, paper feed tray <4>
, paper guide (5), platen (6), paper ejection guide (7)
are arranged in sequence, and an automatic paper feed roller shaft (8> is installed on the paper guide (5> side) of the paper feed tray (4>).
In addition, a pair of upper and lower paper feed roller shafts (9) (9) are provided on the paper guide (5) side and the paper ejection tray (7> side of the platen (6), respectively).
), paper ejection roller shafts (10) (10) are installed, and a plurality of automatic paper feeding rollers (11) (11) are attached to these roller shafts, respectively.
) (11), paper feed roller (L2) (12><12), and paper ejection roller (13) (13) (13) are installed.
(14〉は上記下ケース(3)の開口(2)にネ皮着さ
れた上ケースで、上記給紙トレー(4)の上方に対向位
置して印刷用紙(15〉を挿入する給紙口〈16)を開
口していると共に、上記プラテン〈6)の上方に位置し
てカバー(17)を開閉自在に枢支し、かつこのカバー
にて開閉される覗き窓(18〉を形成し、更に後面の下
端には排紙口(19)を形成している。(14> is an upper case that is attached to the opening (2) of the lower case (3), and is a paper feed port located above the paper feed tray (4) and into which printing paper (15>) is inserted. (16) is open, and a viewing window (18) is located above the platen (6) and pivotally supports a cover (17) so as to be openable and closable, and is opened and closed by the cover; Further, a paper discharge port (19) is formed at the lower end of the rear surface.
(20)は上記プラテン(6〉の上方適所に、シャフト
(21〉にて回転並びに水平方向に摺動自在に装着され
たインクジェットヘッドで、インクを噴出するノズル〈
22)を上記プラテン(6〉に対向位置して下方垂直方
向に向ける印字位置と、この印字位置より上側に略90
@回転してノズル(22)を略水平方向に向ける待機位
置(図中に破線にて示す位置)とにヘッド回転用モータ
(23)にて、ギヤ(24〉(24)を介して回転駆動
される。(20) is an inkjet head mounted on a shaft (21) at a suitable position above the platen (6) so as to be able to rotate and slide in the horizontal direction, and a nozzle for ejecting ink.
22) facing the platen (6>) facing downward vertically, and approximately 90 mm above this printing position.
The head rotation motor (23) rotates the nozzle (22) to a standby position (position indicated by a broken line in the figure) to turn the nozzle (22) in a substantially horizontal direction via a gear (24). be done.
(25)は上記インクジェットヘッド(20〉を印刷用
紙(15)の幅方向に移動するキケリッジモータで、一
対のプーリ(26)(26)、及びワイヤ又はベルト等
の駆動材(27)を介してインクジェットヘッド(20
〉を移動する。(25) is a kick ridge motor that moves the inkjet head (20) in the width direction of the printing paper (15), and is driven by a pair of pulleys (26) (26) and a driving member (27) such as a wire or belt. Inkjet head (20
>Move.
(28)は紙送用モータで、ギヤ(29)(29)を介
して上記送紙ローラ軸(9)を回転駆動し、かつこのロ
ーラ軸と排紙ローラ軸(10〉とにベルト(30〉を掛
け、このベルトにてローラ軸(9)(10)を連動して
いる。(28) is a paper feed motor that rotates the paper feed roller shaft (9) through gears (29) and (29), and also connects this roller shaft and the paper ejection roller shaft (10> with a belt (30). >, and the roller shafts (9) and (10) are interlocked with this belt.
(31)は自動給紙用モータで、ギヤ(32) (32
)を介して上記自動給紙ローラ軸(8)を回転駆動する
。(31) is the automatic paper feeding motor, gear (32) (32
) to rotate the automatic paper feed roller shaft (8).
(33)は上記ヘッド回転用モータ(23)、キケリッ
ジモータ(25)、紙送用モータ(28〉、自動給紙用
モータ(31)等の回転制御を行うと共に、上記インク
ジェットヘッド(20)等に制御用信号を送る制御回路
で、例えば第3図にて示す様に図示しない電源スィッチ
の切り操作等により電源がOFFされると(Sl)、こ
れを検出すると共に、上記インクジェットヘッド(20
〉のホームポジションに設けたホームポジションセンサ
(34〉にて、インクジェットヘッド(20〉がホーム
ポジションにあるか否かを検知しくS2)、なければ生
々リッジモータ(25)を作動してインクジェットヘッ
ド(20〉をホームポジションに移動しくS3)、次い
でキャリッジセンサ(35)がONしているか否かを検
出しくS4〉、OFFであればこれがONする迄ヘッド
回転用モータ(23)を作動して(55)、インクジェ
ットヘッド(20〉を印字位置から略90°回転した待
機位置に回転し、上記キャリッジセンサ(35〉がON
すればヘッド回転用モータ(23)への通電を停止する
(56)。(33) controls the rotation of the head rotation motor (23), the Kikeridge motor (25), the paper feed motor (28>, the automatic paper feed motor (31), etc.), and also controls the rotation of the inkjet head (20). For example, as shown in FIG. 3, when the power is turned off (Sl) by turning off a power switch (not shown), the control circuit sends control signals to the inkjet head (20
The home position sensor (34) installed at the home position of the inkjet head (20) is used to detect whether or not the inkjet head (20) is at the home position (S2). 20> to the home position (S3), then detect whether the carriage sensor (35) is ON or not (S4). If it is OFF, operate the head rotation motor (23) until it turns ON (S4). 55), the inkjet head (20> is rotated approximately 90 degrees from the printing position to the standby position, and the carriage sensor (35>) is turned ON.
Then, the power supply to the head rotation motor (23) is stopped (56).
尚上記実施例では、電源のOFF操作時について説明す
るが、例えば所定時間以上印字操作が行われない場合に
もインクジェットヘッド(20)を待機位置に回転制御
しても良く、これによりノズル〈22)部分へのインク
溜を防止する事ができる。In the above embodiment, explanation will be given regarding the time of turning off the power, but for example, the inkjet head (20) may also be controlled to rotate to the standby position even when no printing operation is performed for a predetermined period of time. ) can prevent ink from accumulating in the area.
又上記実施例では、インクジェットヘッド〈20〉をそ
の待機時にはプラテン(6)の上側に回転しているが、
例えば第4図及び第5図にて示す様に、プラテン(6)
のインクジェットヘッド(20)のホームポジション位
置下方に対向して収納口(36〉を設け、上記待機時に
はインクジェットヘッド(20〉を上記収納口(36〉
より下側に略90°回転してプラテン(6〉の下方に収
納しても良く、これによりブノンタ本体(1〉の高さ寸
法の小型化を計る事ができる。Further, in the above embodiment, the inkjet head <20> is rotated above the platen (6) when it is on standby.
For example, as shown in Figures 4 and 5, the platen (6)
A storage opening (36> is provided opposite to the home position position of the inkjet head (20) of
It may be rotated approximately 90° downward and stored below the platen (6), thereby making it possible to reduce the height dimension of the Bunonta main body (1).
(ト・〉 発明の効果
本発明による構成により、印字時にはインクジェットヘ
ッドのノズルを下方に向けて印字を行う事で、ノズルか
ら噴出したインク滴の引力による影響を防止し、高品質
な印字を行う事ができると共に、比較的長時間印字を行
わない所謂待機時には、インクジェットヘッドを略90
°回転してノズルを略水平位置とする事で、ノズル部分
へのインク溜によるノズル詰まり、及び印刷用紙へのイ
ンク滴下を確実防止する事ができる。(G) Effects of the Invention With the configuration of the present invention, by directing the nozzle of the inkjet head downward during printing, the influence of the gravitational force of ink droplets ejected from the nozzle is prevented, and high-quality printing is achieved. At the same time, when the inkjet head is on standby when printing is not performed for a relatively long time, the inkjet head can be
By rotating the nozzle to a substantially horizontal position, it is possible to reliably prevent nozzle clogging due to ink accumulation in the nozzle portion and ink dripping onto the printing paper.
第1図は本発明の側面縦断面図、第2図は同じく平面図
、第3図は同じく動作説明用のブローチヤード図、第4
図は同じく他の実施例を示す縦断面図、第5図は同じく
他の実施例を示す平面図である。
(6)・・・プラテン、(20)・・・インクジェット
ヘッド、(22)・・・ノズル、(33)・・・制御回
路。FIG. 1 is a side longitudinal cross-sectional view of the present invention, FIG. 2 is a plan view, FIG. 3 is a broached yard diagram for explaining the operation, and FIG.
The figure is a longitudinal sectional view showing another embodiment, and FIG. 5 is a plan view showing another embodiment. (6)... platen, (20)... inkjet head, (22)... nozzle, (33)... control circuit.
Claims (3)
ンの上方にインクジェットヘッドを装着するものにおい
て、このインクジェットヘッドを、ノズルをプラテンに
対向して下方に向ける印字位置と、上記ノズルを略水平
方向に向ける待機位置とに回転自在に構成した事を特徴
とするインクジェットプリンタ。(1) In a device in which the platen is arranged approximately horizontally and an inkjet head is mounted above the platen, the inkjet head is placed at a printing position with the nozzle facing downward facing the platen, and the nozzle is placed approximately horizontally. An inkjet printer characterized in that it is configured to be rotatable between a standby position and a standby position.
OFF時に上記待機位置に回転駆動する駆動手段を設け
てなる上記第1請求項記載のインクジェットプリンタ。(2) The inkjet printer according to claim 1, further comprising a driving means for rotationally driving the inkjet head to the standby position when not printing and when the power is turned off.
記プラテンの下方側に略90°回転駆動して成る上記第
1請求項記載のインクジェットプリンタ。(3) The inkjet printer according to claim 1, wherein the inkjet head is rotated approximately 90 degrees below the platen during standby.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20815789A JP2755709B2 (en) | 1989-08-10 | 1989-08-10 | Inkjet printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20815789A JP2755709B2 (en) | 1989-08-10 | 1989-08-10 | Inkjet printer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0371851A true JPH0371851A (en) | 1991-03-27 |
JP2755709B2 JP2755709B2 (en) | 1998-05-25 |
Family
ID=16551598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20815789A Expired - Fee Related JP2755709B2 (en) | 1989-08-10 | 1989-08-10 | Inkjet printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2755709B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092622A1 (en) * | 2004-03-29 | 2005-10-06 | Brother Kogyo Kabushiki Kaisha | Printer with embroidering function |
US7571690B2 (en) | 2004-03-29 | 2009-08-11 | Brother Kogyo Kabushiki Kaisha | Printable embroidery machine |
WO2010071058A1 (en) * | 2008-12-17 | 2010-06-24 | エスアイアイ・プリンテック株式会社 | Device for rotating liquid jetting head, liquid jetting recording device, and method for filling liquid jetting recording device with liquid |
WO2010101076A1 (en) * | 2009-03-06 | 2010-09-10 | エスアイアイ・プリンテック株式会社 | Carriage unit, liquid discharge recording device, and method of using carriage unit |
US20110050767A1 (en) * | 2009-08-28 | 2011-03-03 | Manroland Ag | Variable format web press |
-
1989
- 1989-08-10 JP JP20815789A patent/JP2755709B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092622A1 (en) * | 2004-03-29 | 2005-10-06 | Brother Kogyo Kabushiki Kaisha | Printer with embroidering function |
US7571690B2 (en) | 2004-03-29 | 2009-08-11 | Brother Kogyo Kabushiki Kaisha | Printable embroidery machine |
WO2010071058A1 (en) * | 2008-12-17 | 2010-06-24 | エスアイアイ・プリンテック株式会社 | Device for rotating liquid jetting head, liquid jetting recording device, and method for filling liquid jetting recording device with liquid |
WO2010101076A1 (en) * | 2009-03-06 | 2010-09-10 | エスアイアイ・プリンテック株式会社 | Carriage unit, liquid discharge recording device, and method of using carriage unit |
US20110050767A1 (en) * | 2009-08-28 | 2011-03-03 | Manroland Ag | Variable format web press |
US8827397B2 (en) * | 2009-08-28 | 2014-09-09 | Manroland Web Systems Gmbh | Variable format web press |
Also Published As
Publication number | Publication date |
---|---|
JP2755709B2 (en) | 1998-05-25 |
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