JPS58181674A - Ink end detector for ink tank - Google Patents
Ink end detector for ink tankInfo
- Publication number
- JPS58181674A JPS58181674A JP6328082A JP6328082A JPS58181674A JP S58181674 A JPS58181674 A JP S58181674A JP 6328082 A JP6328082 A JP 6328082A JP 6328082 A JP6328082 A JP 6328082A JP S58181674 A JPS58181674 A JP S58181674A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- ink tank
- wiring board
- circuit board
- hollow needle
- 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
Landscapes
- Ink Jet (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、液体インクを用いたプリンタに使用されるイ
ンクタンクのインクエンド検出装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ink end detection device for an ink tank used in a printer using liquid ink.
液体インクを用いたプリンタとしては、インクドツトプ
リンタや、本出願人が先に出願した特願昭５５−８１６
０９号に詳細が示されるようなインクドツトプリンタが
ある。これらのプリンタニオイテ、記録ヘッドに供給管
を介してインクタンクからインクが供給される。インク
タンク内に貯蔵されたインクが終りに近づいた時、また
はインクタンク内にもはやインクが無くなった時の検出
装置として、インクタンク内に電極を設け、インク残量
の炭化による抵抗値の炭化な利用する構造が、一般に用
いられている。この場合、電極は脱着可能なインクタン
ク偏に固定され、インクタンク案内に固定された弾性体
接片と接触することにより、電気的接続がなされる構造
が一般的である。しかし、弾性体接片のへたりなどから
接続の信轢性は低く、またインクタンクからのインク漏
れにより電極及び弾性体接片部分がインクに浸ると、イ
ンクタンク内にインクが無いにもかかわらず、インクエ
ンド検出ができず談動作することがある。Examples of printers using liquid ink include ink dot printers and the patent application filed in 1981-816 filed earlier by the present applicant.
There is an ink dot printer as detailed in No. 09. In these printers, ink is supplied to the recording head from an ink tank via a supply pipe. An electrode is installed inside the ink tank as a detection device when the ink stored in the ink tank is nearing its end or when there is no more ink in the ink tank. The structure utilized is commonly used. In this case, the electrode is generally fixed to a removable ink tank and electrically connected by contacting an elastic contact piece fixed to an ink tank guide. However, the reliability of the connection is low due to the elastic contact pieces becoming stale, and if the electrodes and elastic contact pieces are immersed in ink due to ink leakage from the ink tank, even though there is no ink in the ink tank, the connection is unreliable. In some cases, the printer may not be able to detect the ink end and the printer may run into trouble.
本発明はこれらの欠点をなくすためになされたもので、
インクエンド検出用の電極を配線基板と直結する構造と
し、接続の信頼性を向上したものである。また、極力部
品点数な少なくして、低価格のインクエンド検出装置を
提供するものである。The present invention was made to eliminate these drawbacks.
The electrode for ink end detection is directly connected to the wiring board, improving the reliability of the connection. Further, it is an object of the present invention to provide a low-cost ink end detection device with as few components as possible.
本発明の一実施例を図【用いて説明する。An embodiment of the present invention will be described with reference to the drawings.
第１図、第２図において、インクタンク１＆まインクタ
ンク案内２にガイドされ脱着可能に取付＆すられている
。図示しない印字ヘッドにインクを供給し不要インクを
回収するインク供給管７及びインク回収管８は、中空針
４に接続されてし）る、２本の中空針４は金属等導電部
材からできており、インクタンク１装着時に、インクタ
ンク１に固定されたンーリング用のゴム板３を突き破り
、インクタンク１内に突出する。りん青銅等の金属材料
からなる端子板６は、中空針４の外周にそれぞれ巻き付
けた状態で、インクタンク案内２の溝２０に位置決めさ
れ、他端は配線基板５の穴５６．５ｂにガイドされ配線
基板５の銅箔、（ターン面ニ突き出た状態となる。配線
基板５はネジ９により、端子板６及び中空針４を押圧し
た状態でインクタンク案内２に固定される。そして、端
子板６は配線基板５のパターン面に半田付は固定される
。In FIGS. 1 and 2, an ink tank 1 and an ink tank guide 2 guide the ink tank 1 and the ink tank guide 2 and are detachably attached and slid thereon. An ink supply pipe 7 and an ink collection pipe 8 that supply ink to a print head (not shown) and collect unnecessary ink are connected to a hollow needle 4. The two hollow needles 4 are made of a conductive material such as metal. When the ink tank 1 is attached, it breaks through the rubber plate 3 for cooling fixed to the ink tank 1 and protrudes into the ink tank 1. The terminal plate 6 made of a metal material such as phosphor bronze is positioned in the groove 20 of the ink tank guide 2 while being wound around the outer periphery of the hollow needle 4, and the other end is guided into the hole 56.5b of the wiring board 5. The copper foil of the wiring board 5 protrudes from the turn surface. The wiring board 5 is fixed to the ink tank guide 2 with the screws 9 while pressing the terminal board 6 and the hollow needle 4. 6 is fixed to the pattern surface of the wiring board 5 by soldering.
インクエンド検出方法を簡単に説明する。中空針４を経
て、インクタンク１内のインク液面が徐々に下がり、イ
ンク液面が中空針４の先端位置までくると、２本の中空
針４の間の抵抗値はそれまでのインク特有の値から増大
してくる。この抵抗値の変化を利用して、インクの有無
を検出する方法は公知であり、詳細な説明は省略する。The ink end detection method will be briefly explained. After passing through the hollow needles 4, the ink level in the ink tank 1 gradually decreases, and when the ink level reaches the tip of the hollow needles 4, the resistance value between the two hollow needles 4 becomes unique to the ink up to that point. It increases from the value of . A method of detecting the presence or absence of ink using this change in resistance value is well known, and detailed description thereof will be omitted.
＃Ｉ３図は本発明の他の実施例な示すもので、本発明の
インクエンド検出装置をカラープリンタに用いた例であ
る。Figure #I3 shows another embodiment of the present invention, and is an example in which the ink end detection device of the present invention is used in a color printer.
カラー印字用に例えばシアン、イエロー、マゼンタの３
色のインクを貯蔵するインクタンク１ａ、１４，１ｃが
インクタンク案内１２に取付けられている。第６図では
１−のインクタンクについて一部断面を示してあり、中
空針４．ゴム板３゜端子板６の形状は第１，２図と同様
である。配線基板１５は３色の各インクについてインク
のエンド検出ができるような配“線パターンになってい
る。For example, cyan, yellow, and magenta for color printing.
Ink tanks 1a, 14, and 1c storing color inks are attached to an ink tank guide 12. FIG. 6 shows a partial cross section of the ink tank 1-, and the hollow needle 4. The shape of the rubber plate 3° terminal plate 6 is the same as that shown in FIGS. 1 and 2. The wiring board 15 has a wiring pattern that allows ink end detection for each of the three colors of ink.
この様にインクエンド検出筒・所が増えても、非常にコ
ンパクトにまとめることができる。In this way, even if the number of ink end detection tubes and locations increases, it can be made very compact.
以上説明した様に・本発明によれば、中空針４の外周に
端子板６を巻きつけさらにこの状態を押圧し続ける構造
であり１．電気的接続の信頼性は極めて高い。又、中空
針４．配線基板５．端子板６の固定が至極簡単であり、
配線基板５がインクタンク脱着時に中空針４にかかる負
荷を強固に支える構造で、インクタンク装着性も良好で
ある。さらに、インク漏れに対し中空針４．端子板６．
配線基板５パタ一ン面等は、ゴム板３から離れており安
全である。さらに、これら接続部をモールド化すること
により完全を期すことができる。As explained above, according to the present invention, the terminal plate 6 is wound around the outer periphery of the hollow needle 4 and the terminal plate 6 is continued to be pressed in this state.1. The reliability of the electrical connection is extremely high. Also, hollow needle 4. Wiring board 5. Fixing the terminal board 6 is extremely easy,
The wiring board 5 has a structure that firmly supports the load applied to the hollow needle 4 when the ink tank is attached and detached, and the ink tank is easily attached. Furthermore, the hollow needle 4. prevents ink leakage. Terminal board 6.
The entire surface of the wiring board 5 pattern is separated from the rubber plate 3 and is safe. Furthermore, perfection can be ensured by molding these connections.
なお、実施例では端子板の先端をＵ字状に曲げて中空針
の外周に接するようにした例を説明したが、Ｌ字形状等
でもよく、要は中空針の外周に確実に接することができ
ればよい。In addition, in the example, an example was explained in which the tip of the terminal plate was bent into a U-shape so that it was in contact with the outer periphery of the hollow needle, but it may also be in an L-shape, etc., and the point is that it should be in contact with the outer periphery of the hollow needle reliably. I wish I could.
このように、本発明によればインクエンド検出の接続の
信頼性を飛躍的に向上させ、構造簡単なことから、液体
インクを用いたプリンタのインク供給系の高信頼性、低
価格化に大きく貢献するものである。As described above, according to the present invention, the reliability of the connection for ink end detection is dramatically improved, and since the structure is simple, it can greatly improve the reliability and cost reduction of the ink supply system of printers using liquid ink. It is something that contributes.
第１１！！！！は本発明によるインクエンド検出装置の
断面図、第２図は第１図人−Ａ′部分断面図、第３図は
カラープリンタに応用した例を示す図である。図におい
て１はインクタンク、２はインクタンク案内で２−は溝
、５はゴム板、４は中空針、５は配線基板、５ｇ、５４
は穴、６は端子板、７はインク供給管、８はイン多回収
管、９はネジ。
１ａ、１４．１ｇはカラープリンタにおけるインクタン
ク、１２はカラー用インクタンク案内、１５はカラー用
配線基板。
以 上
出願人 儒州精器株式金社
株式金社諏訪精工舎
代理人 弁理士 最上 務
６
第３ａｌ11th! ! ! ! 2 is a sectional view of the ink end detection device according to the present invention, FIG. 2 is a partial sectional view taken along line A' in FIG. 1, and FIG. 3 is a diagram showing an example applied to a color printer. In the figure, 1 is an ink tank, 2 is an ink tank guide, 2- is a groove, 5 is a rubber plate, 4 is a hollow needle, 5 is a wiring board, 5g, 54
is a hole, 6 is a terminal board, 7 is an ink supply tube, 8 is an inlet recovery tube, and 9 is a screw. 1a and 14.1g are ink tanks in a color printer, 12 is a color ink tank guide, and 15 is a color wiring board. Applicant Yushu Seiki Co., Ltd. Kinsha Co., Ltd. Suwa Seikosha Agent Patent Attorney Tsutomu Mogami 6th 3rd Al
Claims (1)
脱着可能に案内するインクタンク案内と、前記インクタ
ンク内に突出する導電性のパイプと、配線基板と、前記
パイプと前記配線基板とを電気的に接続する端子板とか
ら構成され、前記端子板は前記パイプの外周に接し、か
つ前記配線基板と接続する形状とし、前記配線基板によ
って、前記パイプ及び前記端子板を前記インクタンク案
内に押圧固定する構造としたことを特徴とするインクタ
ンクのインクエンド検出装置。In a printer using liquid ink, an ink tank guide that removably guides an ink tank, a conductive pipe protruding into the ink tank, a wiring board, and electrically connecting the pipe and the wiring board. a terminal board, the terminal board is shaped to be in contact with the outer periphery of the pipe and connected to the wiring board, and the wiring board presses and fixes the pipe and the terminal board to the ink tank guide. An ink end detection device for an ink tank, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328082A JPS58181674A (en) | 1982-04-16 | 1982-04-16 | Ink end detector for ink tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6328082A JPS58181674A (en) | 1982-04-16 | 1982-04-16 | Ink end detector for ink tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58181674A true JPS58181674A (en) | 1983-10-24 |
Family
ID=13224746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6328082A Pending JPS58181674A (en) | 1982-04-16 | 1982-04-16 | Ink end detector for ink tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58181674A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59155052A (en) * | 1983-02-23 | 1984-09-04 | Sharp Corp | Ink feeder of ink jet printer |
| JPS60245562A (en) * | 1984-05-22 | 1985-12-05 | Seiko Epson Corp | Ink tank for ink-type wire dot printer |
-
1982
- 1982-04-16 JP JP6328082A patent/JPS58181674A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59155052A (en) * | 1983-02-23 | 1984-09-04 | Sharp Corp | Ink feeder of ink jet printer |
| JPH0521748B2 (en) * | 1983-02-23 | 1993-03-25 | Sharp Kk | |
| JPS60245562A (en) * | 1984-05-22 | 1985-12-05 | Seiko Epson Corp | Ink tank for ink-type wire dot printer |
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