JPS60204330A - Liquid jet recording device - Google Patents
Liquid jet recording deviceInfo
- Publication number
- JPS60204330A JPS60204330A JP6056884A JP6056884A JPS60204330A JP S60204330 A JPS60204330 A JP S60204330A JP 6056884 A JP6056884 A JP 6056884A JP 6056884 A JP6056884 A JP 6056884A JP S60204330 A JPS60204330 A JP S60204330A
- Authority
- JP
- Japan
- Prior art keywords
- recording head
- recording
- liquid jet
- carriage
- jet recording
- 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
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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/34—Bodily-changeable print heads or carriages
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は液体噴射記録装置に係ル、特に記録ヘッドを正
確な位置に装着できる液体噴射記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a liquid jet recording apparatus, and more particularly to a liquid jet recording apparatus in which a recording head can be mounted in an accurate position.
液体噴射記録法の中で、例えば特開昭５４−５１８３７
号公報、ドイツ公開（ＤＯＬＳ ）第２８４３０６４号
公報に記載されている液体噴射記録法は、熱エネルギー
を液体に作用させて、液滴吐出の原動力を得るという点
において、他の液体噴射記録法とは、異なる特徴を有し
ている。Among the liquid jet recording methods, for example, Japanese Patent Application Laid-Open No. 54-51837
The liquid jet recording method described in DOLS No. 2843064 is different from other liquid jet recording methods in that it applies thermal energy to the liquid to obtain the motive force for ejecting droplets. have different characteristics.
特に、ＤＯＬ８第２８４３０６４号公報に開示されてい
る記録法は、いわゆるｄｒｏｐ −ｏｎ ｄｅｍａｎｄ
記録法に極めて有効に適用されるばかシではなく、フ
ルラインタイプで高密度マルチオリフィス化された記録
ヘッドが容易に具現化できるために、高解像度、高品質
の画像を高速で得ることができる。In particular, the recording method disclosed in DOL8 No. 2843064 is a so-called drop-on-demand recording method.
It is not a foolproof method that can be applied extremely effectively to recording methods, but it can easily be realized as a full-line type high-density multi-orifice recording head, making it possible to obtain high-resolution, high-quality images at high speed. .
上記の記録法に適用される装置の記録ヘッド部は、液体
を吐出するために設けられたオリフィスと、該オリフィ
スに連通し、液滴を吐出するための熱エネルギーが液体
に作用する部分である熱作用ｍを構成の一部とする液流
路とを有する液吐出部と、熱エネルギーを発生する手段
としての電気熱変換体とを具備している。The recording head section of the apparatus applied to the above recording method is a part that communicates with an orifice provided for ejecting liquid and where thermal energy acts on the liquid in order to eject droplets. It includes a liquid discharge part having a liquid flow path in which a thermal effect m is a part of the structure, and an electrothermal converter as a means for generating thermal energy.
従来、このような液体噴射（インクジェット）記録ヘッ
ドを用いる記録装置において、記録に必要な記録液は、
記録ヘッドとは別の場所に設けられた記録液貯蔵部（イ
ンクタンク）よシ可とう性パイプの如き供給管によって
供給され、また記録ヘッドの電気熱変換体を駆動する為
の電気信号は、記録ヘッドとは別の場所に設けられた駆
動回路部分よシフレキシブルガ配線ケーブルを接続して
供給されるようになっていた。Conventionally, in a recording device using such a liquid jet (inkjet) recording head, the recording liquid necessary for recording is
The ink tank is provided at a location separate from the recording head, and the electrical signal for driving the electrothermal transducer of the recording head is supplied by a supply pipe such as a flexible pipe. It was designed to be supplied by connecting a flexible gas wiring cable to a drive circuit section located at a separate location from the recording head.
このような記録装置においては、記録ヘッドは、キャリ
ッジ部分に固定され、記録液供給管は記録ヘッドに設け
られた供給管接続部材に圧入、ねじ込み、接着などの手
段で固定的に接続されていた。In such recording devices, the recording head is fixed to the carriage part, and the recording liquid supply tube is fixedly connected to the supply tube connecting member provided on the recording head by means such as press-fitting, screwing, gluing, etc. .
また、電気信号を記録ヘッドに導く為のフレキシブルケ
ーブルは、記録ヘッドに設けられた配線パッド部トフレ
キシブルケーブルの接続パッド部を圧着するか、又はワ
イヤーボンディング、半田付け、熱圧着接合力どの方法
で相互に接合した後、記録ヘッドに固定されていた。In addition, the flexible cable for guiding electrical signals to the recording head can be made by crimping the connection pad of the flexible cable to the wiring pad provided on the recording head, or by wire bonding, soldering, thermocompression bonding, etc. After being bonded to each other, they were fixed to the recording head.
以上に述べたように、従来の記録装置においては、記録
ヘッドはキャリッジに固定されるとともに、記録液供給
管及び電気信号ケーブルが固定的に記録ヘッドに接続さ
れていて、使用者が記録ヘッドを記録装置よシ取シはず
すことは容易でなかった。従って記録ヘッドが使用中に
故障した場合には、使用者がその場で記録ヘッドを取り
はずして他の記録ヘッドと交換することができない、と
いう問題を有していた。As mentioned above, in conventional recording devices, the recording head is fixed to the carriage, and the recording liquid supply tube and electric signal cable are fixedly connected to the recording head, and the user operates the recording head. It was not easy to remove the recording device. Therefore, if the recording head breaks down during use, there is a problem in that the user cannot immediately remove the recording head and replace it with another recording head.
また、前述した問題が生じない為には、記録ヘッドは、
非常に長期間にわたって筒い信頼性を有している必要が
あるが、そのような記録ヘッドを提供することが離しい
と同時に、ヘッド製造の歩留の低下や構成の複雑化、材
料選定の厳しさなどの為に、記録ヘッドの価格が高価に
なるという欠点を有していた。In addition, in order to avoid the above-mentioned problem, the recording head must be
Although it is necessary to have cylinder reliability over a very long period of time, it is difficult to provide such a recording head, and at the same time, it is difficult to provide such a recording head, and at the same time, it causes problems such as lower head manufacturing yields, more complicated structures, and stricter material selection. This has the disadvantage that the recording head is expensive due to the large size.
又、上記欠点を解決する為、記録ヘッドとインクタンク
を一体化したタイプのインクジェット記録ヘッドも提案
されている。このタイプのインクジェット記録ヘッドで
は、記録ヘッドが故障した際には、交換が容易であシ、
シかも交換の際インク供給管を記録ヘッドから取シはず
す事も不要であるので、インクによシ手を汚す事もない
。又記録装置の設計面からは、インク供給管やインクタ
ンクがヘッドと一体になった為、キャリッジの走査に制
約がなくなフ自由な設計が行なえる。しかしこの様に改
良された記録ヘッドにおいても、容易にヘッド交換が行
なえる反面、ヘッド装着後のインク吐出方向が正確に決
められず、必ずしも良好な記録結果が得られるとは限ら
なかった。Furthermore, in order to solve the above-mentioned drawbacks, an inkjet recording head of a type in which a recording head and an ink tank are integrated has also been proposed. With this type of inkjet recording head, if the recording head breaks down, it can be easily replaced.
Since there is no need to remove the ink supply tube from the recording head when replacing it, there is no need to get your hands dirty with ink. In terms of the design of the recording device, since the ink supply tube and ink tank are integrated with the head, there are no restrictions on carriage scanning, allowing for flexible design. However, even with such an improved recording head, although the head can be easily replaced, the ink ejection direction cannot be determined accurately after the head is attached, and good recording results are not necessarily obtained.
本発明は上記従来の問題点に鑑み成されたものであシ、
その目的は簡単な構成で記録ヘッドを正確な位置に装着
でき、かつ容易に取フはずしが可能な液体噴射記録装置
を提供することにある。The present invention has been made in view of the above-mentioned conventional problems.
The purpose is to provide a liquid jet recording device which has a simple configuration, allows a recording head to be mounted in an accurate position, and which can be easily removed.
上記目的を達成するために、本発明による液体噴射記録
装置は液体噴射手段に互いに平行でない少なくとも２個
のガイド平面を設け、前記液体噴射手段を支持する支持
手段に前記ガイド平面の各（５）
各を押え付ける押圧手段を設けたことを特徴とする。In order to achieve the above object, a liquid jet recording device according to the present invention provides a liquid jetting means with at least two guide planes that are not parallel to each other, and a supporting means for supporting the liquid jetting means has at least two guide planes (5) on each of the guide planes. It is characterized by providing a pressing means for pressing each.
ここで、上記液体噴射手段はインクジェット記録ヘッド
であシ、エネルギー発生体を有するもの、たとえば発熱
体の熱エネルギーを利用したもの、又は圧電素子を利用
したもの等である。さらに、噴射する液体（インク）を
貯溜するタンクが一体化されたものであっても良い。Here, the liquid ejecting means is an inkjet recording head, which has an energy generating body, for example, one which utilizes the thermal energy of a heating element, or one which utilizes a piezoelectric element. Furthermore, a tank for storing liquid (ink) to be ejected may be integrated.
上記ガイド平面は互いに直交しているのが望ましい。た
とえば、発熱体の熱エネルギーを利用してインクを吐出
させる記録ヘッドにおいては、発熱体等を形成した基板
の裏面と側面をガイド面として利用できる。Preferably, the guide planes are perpendicular to each other. For example, in a recording head that ejects ink using the thermal energy of a heating element, the back and side surfaces of a substrate on which the heating element and the like are formed can be used as guide surfaces.
上記抑圧手段は各ガイド平面を支持手段（たとえばキャ
リッジ）に十分密着させるとともに、液体噴射手段の取
シはずしが容易であることが必要である。たとえばバネ
等の弾性体の利用が考えられる。It is necessary for the above-mentioned suppressing means to bring each guide plane into sufficient contact with the supporting means (for example, a carriage), and to facilitate the removal of the liquid ejecting means. For example, it is possible to use an elastic body such as a spring.
以下、本発明の実施例を図面を用いて詳細に説（６） 明する。 Hereinafter, embodiments of the present invention will be explained in detail using drawings (6). I will clarify.
まず、第１図ないし第３図を用いて、本発明による液体
噴射記録装置の一実施例における記録ヘッドの構成を述
べる。ただし、図面の煩雑さを避けるために、ここでは
ノズル数の２個の場合が示されている。First, the configuration of a recording head in an embodiment of a liquid jet recording apparatus according to the present invention will be described with reference to FIGS. 1 to 3. However, in order to avoid complication of the drawing, a case where the number of nozzles is two is shown here.
第１図は記録ヘッドの基板の斜視図である。同図におい
て、基板１上には、発熱部２および発熱部２へ電圧を印
加するための導電部３、そして導電部３の先端に個別電
極４および共通電極５がそれぞれ形成されている。また
、図示されていないが、発熱部２および導電部３をイン
クと直接に接触させないために、基板１上にはさらに保
護膜が形成されている。FIG. 1 is a perspective view of the substrate of the recording head. In the figure, on a substrate 1, a heat generating part 2, a conductive part 3 for applying a voltage to the heat generating part 2, and an individual electrode 4 and a common electrode 5 are formed at the tip of the conductive part 3, respectively. Further, although not shown, a protective film is further formed on the substrate 1 in order to prevent the heat generating part 2 and the conductive part 3 from coming into direct contact with the ink.
ここで、基板１の底面ＡＢＣＤおよび側面ＡＤＥＦは、
記録ヘッドを正確に定置するだめのガイドとなる面であ
シ、インク吐出方向と平行になるように予め研磨されて
いる。Here, the bottom surface ABCD and side surface ADEF of the substrate 1 are:
This surface serves as a guide for accurately positioning the recording head, and is polished in advance so that it is parallel to the ink ejection direction.
このように構成された基板１上に、第２図に示されるよ
うに隔壁６を設け、発熱部２上にインク流路７およびオ
ルフィス（吐出口）８を形成する。As shown in FIG. 2, a partition wall 6 is provided on the substrate 1 configured in this manner, and an ink flow path 7 and an orifice (discharge port) 8 are formed on the heat generating portion 2.
隔壁６は仕上シ精度、量産性、発熱部２との位置合せが
容易な事から感光性樹脂を用い、周知のホトリソグラフ
ィー法によ多形成できる。ただし、隔壁６は、面ＡＤＥ
Ｆがガイド面であるために、辺ＥＦとの間に若干の余裕
をもって形成される。The partition walls 6 can be formed in large numbers using a photosensitive resin by the well-known photolithography method because of their high finishing accuracy, ease of mass production, and ease of alignment with the heat generating section 2. However, the partition wall 6 has a surface ADE
Since F is a guide surface, it is formed with some margin between it and the side EF.
そして第３図に示されるように、上面にフィルタ９を有
するインクタンク１０を隔壁６上に固着して記録へラド
１１が完成する。フィルタ９はインクタンク１０内の圧
力を常時一定にする圧力調整用の通気手段であるととも
に、インクタンク１０内のインクへのゴミの混入を防止
する手段でもある。Then, as shown in FIG. 3, an ink tank 10 having a filter 9 on its upper surface is fixed onto the partition wall 6, thereby completing the recording head 11. The filter 9 is a venting means for adjusting the pressure so that the pressure inside the ink tank 10 is always constant, and is also a means for preventing dust from getting mixed into the ink inside the ink tank 10.
このように構成された記録へラド１１において、インク
タンク１０内のインクはインク流路７に供給される。そ
して電極４および５に電圧が印加されることで、発熱体
２が発熱する。その熱エネルギーによって、インクは瞬
間的に気化してインク流路７内に気泡が形成され、この
気泡が急速に膨張することでインクが吐出口８から液滴
となって吐出する。In the recording head 11 configured as described above, ink in the ink tank 10 is supplied to the ink flow path 7. Then, by applying a voltage to the electrodes 4 and 5, the heating element 2 generates heat. The thermal energy instantaneously vaporizes the ink to form bubbles in the ink flow path 7, and as the bubbles rapidly expand, the ink is ejected from the ejection port 8 in the form of droplets.
第４図は本実施例におけるキャリッジの斜視図である。FIG. 4 is a perspective view of the carriage in this embodiment.
同図において、キャリッジ１２はガイド軸１３に摺動自
在に取シ付けられ、図示されていないキャリッジ駆動機
構によシガイド軸１３に沿って走行する。In the figure, a carriage 12 is slidably attached to a guide shaft 13 and travels along the guide shaft 13 by a carriage drive mechanism (not shown).
キャリッジ１２には、記録へラド１１を収納するための
対向面１４および１５が設けられ、記録ヘッド１１のガ
イド面ＡＢＣＤおよびＡＤＥＦに各々対応し密着する。The carriage 12 is provided with opposing surfaces 14 and 15 for housing the recording head 11, which correspond to and come into close contact with the guide surfaces ABCD and ADEF of the recording head 11, respectively.
また、圧着部１６はバネ１７によって対向面１４側へ付
勢されている。ビン１８は弾性を有する樹脂等で作製さ
れ、ガイド軸１３側の端がキャリッジ１２本体に挿入さ
れ固定されている・
第５図は本実施例における記録ヘッドを装着したキャリ
ッジの斜視図、第６図は第５図における矢印Ｘ方向から
見た側面図、第７図は矢印Ｙ方向から見た平面図でおる
。Further, the crimp portion 16 is urged toward the opposing surface 14 by a spring 17. The bottle 18 is made of elastic resin or the like, and its end on the guide shaft 13 side is inserted into the main body of the carriage 12 and fixed. FIG. 5 is a perspective view of the carriage with the recording head mounted in this embodiment, The figure is a side view seen from the direction of arrow X in FIG. 5, and FIG. 7 is a plan view seen from the direction of arrow Y.
第５図ないし第７図において、記録ヘッド１１は、ガイ
ド面ＡＢＣＤおよびＡＤＥＦを各々キャリッジ（９）
１２の対向面１４および１５に対し摺動させるようにし
てキャリッジ１２に装着される。その際、ガイド面ＡＢ
ＣＤは圧着ｍ１６によって対向面１４に押し付けられ、
ガイド面ＡＤＥＦはピン１８の弾性力によって対向面１
５に押し付けられる。5 to 7, the recording head 11 is mounted on the carriage 12 so that the guide surfaces ABCD and ADEF slide against the opposing surfaces 14 and 15 of the carriage (9) 12, respectively. At that time, guide surface AB
The CD is pressed against the opposing surface 14 by the crimp m16,
The guide surface ADEF is connected to the opposing surface 1 by the elastic force of the pin 18.
Pushed to 5.
すでに述べたように、ガイド面ＡＢＣＤおよびＡＤＥＦ
はインクの吐出方向と平行に形成されている。したがっ
て、記録へラド１１をキャリッジ１２に挿入するだけで
、同時に正確な位置決めが成される。As already mentioned, the guide surfaces ABCD and ADEF
are formed parallel to the ink ejection direction. Therefore, by simply inserting the recording head 11 into the carriage 12, accurate positioning can be achieved at the same time.
また、圧着５５１６は電極を兼ねておシ、記録ヘッド１
１の電極４および５にそれぞれ接触して発熱部２に電圧
を印加する。圧着部１６はバネ１７によって付勢されて
いるために、記録へ、ド１１のガイド面ＡＢＣＤを対向
面１４に確実に密着させるとともに、記録ヘッド１１の
電極４および５と圧着部１６の電極とを確実に接続する
。In addition, the crimp 5516 also serves as an electrode for the recording head 1.
A voltage is applied to the heat generating section 2 by contacting the electrodes 4 and 5 of the electrode 1, respectively. Since the crimp portion 16 is biased by a spring 17, it ensures that the guide surface ABCD of the door 11 is brought into close contact with the opposing surface 14 during recording, and that the electrodes 4 and 5 of the recording head 11 and the electrodes of the crimp portion 16 are closely connected to each other. Connect securely.
第８図は本実施例における記録へラド１１の他の例を示
す断面図、第９図はその斜視図である。FIG. 8 is a sectional view showing another example of the recording head 11 in this embodiment, and FIG. 9 is a perspective view thereof.
第８図および第９図における記録へラド１１は、インク
タンク１９にノズル２０と円筒形の圧電素（１０）
子２１とが一体化されている。圧電素子２１には、基板
１上の導電部２２および電極２３を介して、第３図にお
ける記録ヘッドと同様に、電圧が印加される。キャリッ
ジ１２への装置は前例の記録ヘッドの場合と同じである
。In the recording head 11 shown in FIGS. 8 and 9, an ink tank 19, a nozzle 20, and a cylindrical piezoelectric element (10) 21 are integrated. A voltage is applied to the piezoelectric element 21 via the conductive portion 22 and electrode 23 on the substrate 1, similar to the recording head in FIG. The equipment attached to the carriage 12 is the same as in the case of the previous recording head.
以上詳細に説明したように、本発明による液体噴射記録
装置は、記録ヘッドにインク吐出方向と一定の方向を有
する互いに平行でないガイド面を設け、支持手段に前記
名ガイド面を押し付ける抑圧手段を設けたことによシ、
記録ヘッド装着時に特別な調整をすることなくインク吐
出方向の正確な位置決めを行うことができる。したがっ
て、記録ヘッドの交換に゛よるインク吐出方向の変動が
なく、良好な記録績を得ることができる。As described above in detail, the liquid jet recording apparatus according to the present invention is provided with guide surfaces that are not parallel to each other and have a constant direction with the ink ejection direction on the recording head, and a suppressing means that presses the guide surface against the support means. Especially,
Accurate positioning in the ink ejection direction can be performed without making any special adjustments when installing the print head. Therefore, there is no change in the ink ejection direction due to replacement of the print head, and good print results can be obtained.
また、抑圧手段の１つを電極としたことで、電気的接続
が確実になるとともに、構成を簡略化することができる
。Furthermore, by using an electrode as one of the suppressing means, electrical connection can be ensured and the configuration can be simplified.
さらに、記録ヘッドを支持手段にすベシ込ませて押圧す
るために、記録ヘッドの着脱が極めて容易となル、着脱
時のトラブルが激減する。Furthermore, since the recording head is pressed against the support means, it is extremely easy to attach and detach the recording head, and troubles during attachment and detachment are drastically reduced.
第１図は本発明による液体噴射記録装置の一実施例にお
ける記録ヘッドの基板の斜視図、第２図は本実施例にお
ける記録ヘッドのノズルの構成を示す基板の斜視図、
第３図は本実施例における記録ヘッドの斜視図、第４図
は本実施例におけるキャリッジの斜視図、第５図は本実
施例における記録ヘッドを装着したキャリ、ジの斜視図
、
第６図は第５図において矢印Ｘ方向から見た側面図、
第７図は第５図において矢印Ｙ方向から見た平面図、
第８図は記録ヘッドの他の例の断面図、第９図はその斜
視図である。
１・・・基板、２・・・発熱部、４．５・・・電極、１
１・・・記録ヘッド、１２・・・キャリッジ、ｉ４．１
５・・・対向面、１６・・・圧着部、１８・・・ビン、
面ＡＢＣＤ 。
面ＡＤＥＦ・・・ガイド面。
（１３）
第１図
！２図FIG. 1 is a perspective view of a substrate of a recording head in an embodiment of a liquid jet recording device according to the present invention, FIG. 2 is a perspective view of a substrate showing the configuration of nozzles of a recording head in this embodiment, and FIG. 4 is a perspective view of the carriage in this embodiment, FIG. 5 is a perspective view of the carriage with the recording head in this embodiment mounted, and FIG. 6 is a perspective view of the carriage in this embodiment. 7 is a plan view of FIG. 5 viewed from the direction of arrow Y, FIG. 8 is a sectional view of another example of the recording head, and FIG. 9 is a perspective view thereof. DESCRIPTION OF SYMBOLS 1...Substrate, 2...Heating part, 4.5...Electrode, 1
1... Recording head, 12... Carriage, i4.1
5... Opposing surface, 16... Crimp part, 18... Bin,
Surface ABCD. Surface ADEF: Guide surface. (13) Figure 1! Figure 2
Claims (2)
持する支持手段とを有する液体噴射記録装置において、 前記液体噴射手段は互いに平行でない少なくとも２個の
ガイド平面を有し、 前記支持手段は前記ガイド平面の各々を支持手段に押し
付ける抑圧手段を有することを特徴とする液体噴射記録
装置。(1) In a liquid jet recording device having a liquid jetting means and a supporting means for removably supporting the liquid jetting means, the liquid jetting means has at least two guide planes that are not parallel to each other, and the supporting means A liquid jet recording apparatus characterized in that it has a suppressing means for pressing each of the guide planes against a supporting means.
圧を印加するための電極を有することを特徴とする特許
請求の範囲第１項記載の液体噴射記録装置。(2) A liquid jet recording apparatus according to claim 1, wherein one of the suppressing means has an electrode for applying a voltage to the liquid jetting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6056884A JPS60204330A (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6056884A JPS60204330A (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60204330A true JPS60204330A (en) | 1985-10-15 |
Family
ID=13145991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6056884A Pending JPS60204330A (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60204330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4026457A1 (en) * | 1990-08-17 | 1992-02-20 | Siemens Ag | Ink jet print-head discarded when reservoir is empty - has ink channels and connecting branch line formed in ink reservoir container material |
| JPH04289457A (en) * | 1990-08-02 | 1992-10-14 | Boehringer Mannheim Gmbh | Method and equipment for weighing application to target of biochemical analytical liquid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750355B2 (en) * | 1974-07-31 | 1982-10-27 |
-
1984
- 1984-03-30 JP JP6056884A patent/JPS60204330A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750355B2 (en) * | 1974-07-31 | 1982-10-27 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04289457A (en) * | 1990-08-02 | 1992-10-14 | Boehringer Mannheim Gmbh | Method and equipment for weighing application to target of biochemical analytical liquid |
| DE4026457A1 (en) * | 1990-08-17 | 1992-02-20 | Siemens Ag | Ink jet print-head discarded when reservoir is empty - has ink channels and connecting branch line formed in ink reservoir container material |
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