JPS60115451A - Ink residue detector - Google Patents
Ink residue detectorInfo
- Publication number
- JPS60115451A JPS60115451A JP22253483A JP22253483A JPS60115451A JP S60115451 A JPS60115451 A JP S60115451A JP 22253483 A JP22253483 A JP 22253483A JP 22253483 A JP22253483 A JP 22253483A JP S60115451 A JPS60115451 A JP S60115451A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- strain gauge
- strain
- amount
- gauge
- 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
- 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
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、インクジェット記録装置のインク残量検出に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to detecting the amount of remaining ink in an inkjet recording apparatus.
従来例の構成とその問題点
インクジェット記録装置においてヘッドへのインク供給
は一般的には、インク収納器から配管系を介して記録ヘ
ッドに供給される。その際、インク収納器のインク充填
度を外部から常時可視監視することは、不可能に近いも
のであり、電°気的に監視することは有効な手段である
。その−例として１、特開昭５２−１３０３３０号公報
がある。Conventional Structure and Problems In an inkjet recording apparatus, ink is generally supplied to the recording head from an ink container through a piping system. At this time, it is nearly impossible to constantly visually monitor the ink filling level of the ink container from the outside, and electrical monitoring is an effective means. An example of this is 1, Japanese Unexamined Patent Publication No. 130330/1982.
これは水溶性のインクの充填度に対応した電気抵抗の変
化を−Ａｔ用”した方法である。This is a method in which the change in electrical resistance corresponding to the filling degree of water-soluble ink is used for -At.
しかし、この方法では、
（１）水溶性のインクしか利用できず油性インクには使
えない。However, with this method, (1) only water-soluble inks can be used and cannot be used with oil-based inks;
（に） 電極が直接インクに接触し、インクに通′電３
べ、−・
することから、インクの電気分解が生じたり電極に析出
物が付着する。(2) The electrode directly contacts the ink and energizes the ink.3
Because of this, electrolysis of the ink occurs and deposits adhere to the electrodes.
などの大きな欠点がある。There are major drawbacks such as:
発明の目的
５ 本発明はこれらの問題を解決すべく検出素子が直接
インクに触れることなく、安定かつ正確にインク残量を
電気的に監視するインク残量検出装置を提供することを
目的とするものである。Objective 5 of the Invention In order to solve these problems, it is an object of the present invention to provide an ink level detection device that electrically monitors the ink level stably and accurately without the detection element directly touching the ink. It is something.
発明の構成
本発明は、インクを収納する可撓性の袋に歪ゲージを設
け、インクの充填塵に対応した歪量を検知し、所定の歪
量の際、記録装置を停止させインク無し表示をするよう
にしたインク残量検出装置である。Structure of the Invention The present invention provides a strain gauge in a flexible bag that stores ink, detects the amount of strain corresponding to the amount of dust in the ink filling, and when a predetermined amount of strain is detected, the recording device is stopped and an ink-out display is displayed. This is an ink remaining amount detection device designed to do the following.
実施例の説明
以下本発明の実施例について図面とともに詳細に説明す
る。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図に本発明によるインク収納器の断面図を示す。ａ
はインクが十分充填されたとき、ｂはインクがなくなっ
たときを示す。FIG. 1 shows a sectional view of an ink container according to the present invention. a
b indicates when the ink is sufficiently filled, and b indicates when the ink runs out.
第１図ａにおいて、インク収納器である可撓性の袋１に
インク３を充填し歪ゲージ２を設ける。In FIG. 1a, a flexible bag 1 serving as an ink container is filled with ink 3 and a strain gauge 2 is provided.
どの状態では歪は発生しない。次にインク収納器中のイ
ンク３を消費すると第１図すのような状態となり歪ゲー
ジ２には歪が発生することになる。Distortion does not occur under any conditions. Next, when the ink 3 in the ink container is consumed, a state as shown in FIG. 1 occurs, and strain occurs in the strain gauge 2.
第２図は検出回路の一例を示す。FIG. 2 shows an example of a detection circuit.
歪ゲージ１１と固定抵抗器１２，１８．１７でブリンジ
を構成し、歪ゲージ１１の歪量の変化に比例しだ抵抗変
化を差動アンプ１３によって増幅し、任意の歪量に達す
ると電圧比較器１４で検出し表示器１５で警報し又は、
インクジェット記録装置を停止するものである。A strain gauge 11 and fixed resistors 12, 18, and 17 constitute a bridge, and the change in resistance is proportional to the change in the amount of strain in the strain gauge 11. The change in resistance is amplified by the differential amplifier 13, and when an arbitrary amount of strain is reached, the voltage is compared. Detected by the device 14 and issued an alarm by the display 15, or
This is to stop the inkjet recording device.
また、インクの温度変化による検出器の誤動作を防止す
るために、ブリッジの固定抵抗１２としてサーミスタ等
の自己温度補償型抵抗器や、温度検出用ダミー歪ゲージ
を使用し温度補償することで安定な検出ができる。In addition, in order to prevent malfunction of the detector due to temperature changes in the ink, a self-temperature compensating resistor such as a thermistor or a dummy strain gauge for temperature detection is used as the fixed resistor 12 of the bridge to stabilize the temperature. Can be detected.
第３図は、インク収納袋１に設けた歪ゲージ２に対応さ
せて突起物４を設はインク量が少なくなったとき突起物
４で歪量を大きくすることで、検５ページ
出精塵を向上させた一例を示す。Figure 3 shows that a protrusion 4 is installed corresponding to the strain gauge 2 provided on the ink storage bag 1, and by increasing the amount of strain with the protrusion 4 when the amount of ink is low, it is possible to detect fine particles on page 5. An example of improved performance is shown below.
発明の効果
以上のように本発明は可撓性のインク収納袋に歪ゲージ
をとりつけ、インク内容量に応じてインク収納袋に発生
する歪量を検出することによシインク残量を検出するイ
ンク残量検出装置で、インクに直接通電する必要がない
ために、インクに化学変化を与えずにインク量を検出す
ることができ、捷だ水性インクだけでなく油性インクに
も使えるなど大きな特徴がある。Effects of the Invention As described above, the present invention provides an ink storage system that detects the remaining amount of ink by attaching a strain gauge to a flexible ink storage bag and detecting the amount of strain that occurs in the ink storage bag depending on the ink content. The remaining amount detection device does not require electricity to be applied directly to the ink, so it can detect the amount of ink without causing any chemical changes to the ink, and it has great features such as being usable not only for fresh water-based inks but also for oil-based inks. be.
第１図は本発明によるインク残量検出装置の実施例を示
す断面図、第２図は本発明によるインク残量検出装置の
検出回路の実施例を示す回路図、第３図は本発明による
インク残量検出装置の他の実施例を示す断面図である。
１・・・・・・インク収納袋、２・・・・・・歪ゲージ
、３・・・・・・インク、４・・・・・・突起物、１１
・・・・・・歪ゲージ、１２゜１６．１７・・・・・・
固定抵抗器、１３・・・・・・差動アンプ、１４・・・
・・電圧比較器、１６・・・・・・表示器。FIG. 1 is a cross-sectional view showing an embodiment of the ink remaining amount detection device according to the present invention, FIG. 2 is a circuit diagram showing an embodiment of the detection circuit of the ink remaining amount detection device according to the present invention, and FIG. 3 is a cross-sectional view showing an embodiment of the ink remaining amount detection device according to the present invention. FIG. 7 is a cross-sectional view showing another embodiment of the remaining ink amount detection device. 1...Ink storage bag, 2...Strain gauge, 3...Ink, 4...Protrusion, 11
...Strain gauge, 12゜16.17...
Fixed resistor, 13...Differential amplifier, 14...
...Voltage comparator, 16...Display device.
Claims (1)
け、記録インクの充填度に対応したインク収納袋の歪量
を検知することを特徴としたインク残量検出装置。 （２） インク収納袋外側に設けた歪ゲージとその歪ゲ
ージに対応させてインク収納袋に突起物を設けた特許請
求の範囲第１項に記載のインク残量検出装置。 （３）歪ゲージにおいて、自己温度補償型あるいは温度
補償用ダミーゲージを設は温度依存性を打消す特性を持
つことを特徴とする特許請求の範囲第１項または第２項
記載のインク残量検出装置１゜（４）歪ゲージと固定抵
抗器でブリッジを構成し、歪ゲージの歪量を抵抗変化と
して検出する特許請求の範囲第１項記載のインク残量検
出装置。 （５）固定抵抗器の１つが自己温度補償型抵抗器又２ペ
ージ は温度補償用ダミーゲージである特許請求の範囲第４項
記載のインク残量検出装置。[Scope of Claims] (1) Remaining amount of ink, characterized in that a strain gauge is provided in a flexible bag for storing recording ink, and the amount of distortion of the ink storage bag corresponding to the degree of filling of recording ink is detected. Detection device. (2) The ink remaining amount detection device according to claim 1, further comprising a strain gauge provided on the outside of the ink storage bag and a protrusion provided on the ink storage bag in correspondence with the strain gauge. (3) The remaining amount of ink according to claim 1 or 2, wherein the strain gauge has a characteristic of canceling temperature dependence by providing a self-temperature compensation type or a temperature compensation dummy gauge. Detecting device 1° (4) The remaining ink amount detecting device according to claim 1, wherein a bridge is constituted by a strain gauge and a fixed resistor, and the amount of strain of the strain gauge is detected as a change in resistance. (5) The remaining ink amount detecting device according to claim 4, wherein one of the fixed resistors is a self-temperature compensation type resistor, and the second page is a temperature compensation dummy gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22253483A JPS60115451A (en) | 1983-11-26 | 1983-11-26 | Ink residue detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22253483A JPS60115451A (en) | 1983-11-26 | 1983-11-26 | Ink residue detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60115451A true JPS60115451A (en) | 1985-06-21 |
Family
ID=16783937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22253483A Pending JPS60115451A (en) | 1983-11-26 | 1983-11-26 | Ink residue detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60115451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0749840A2 (en) * | 1995-06-19 | 1996-12-27 | Canon Kabushiki Kaisha | Printing apparatus and facsimile apparatus using same |
| US6012794A (en) * | 1996-03-22 | 2000-01-11 | Canon Kabushiki Kaisha | Inkjet printing apparatus which determines residual ink amount, and method of detecting ink |
-
1983
- 1983-11-26 JP JP22253483A patent/JPS60115451A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0749840A2 (en) * | 1995-06-19 | 1996-12-27 | Canon Kabushiki Kaisha | Printing apparatus and facsimile apparatus using same |
| EP0749840A3 (en) * | 1995-06-19 | 1997-10-22 | Canon Kk | Printing apparatus and facsimile apparatus using same |
| US6086178A (en) * | 1995-06-19 | 2000-07-11 | Canon Kabushiki Kaisha | Ink detection for printers and scanners |
| US6012794A (en) * | 1996-03-22 | 2000-01-11 | Canon Kabushiki Kaisha | Inkjet printing apparatus which determines residual ink amount, and method of detecting ink |
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