JPH0213910B2 - - Google Patents
Info
- Publication number
- JPH0213910B2 JPH0213910B2 JP57076143A JP7614382A JPH0213910B2 JP H0213910 B2 JPH0213910 B2 JP H0213910B2 JP 57076143 A JP57076143 A JP 57076143A JP 7614382 A JP7614382 A JP 7614382A JP H0213910 B2 JPH0213910 B2 JP H0213910B2
- Authority
- JP
- Japan
- Prior art keywords
- cap
- carriage
- printing
- arm
- prevention device
- 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.)
- Expired - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16505—Caps, spittoons or covers for cleaning or preventing drying out
- B41J2/16508—Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
- B41J2/16511—Constructions for cap positioning
Landscapes
- Ink Jet (AREA)
Description
【発明の詳細な説明】
この発明は、非印字時に印字ヘツド部をキヤツ
プして、印字ヘツド部の目詰り防止するインクジ
エツトプリンタの目詰り防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clogging prevention device for an inkjet printer that prevents clogging of the print head by capping the print head when not printing.
オンデマンド型インクジエツトプリンタでは、
印字ヘツド部に形成され、且つノズルスリツト部
にオリフイスを介して連通する圧力室にインクを
一旦貯蔵し、インク室背面に設けられた振動素子
を動作し、その振動によりオリフイスを通過して
ノズリスリツト部からインク粒子を噴射するよう
になつている。したがつてオリフイスはノズルス
リツト部を介して直接外気に接触する構造にあ
る。しかしながら、このような構造では、オリフ
イスに常時インクが充填されているので、非印字
時にインクが乾燥して目詰りを生じ、印字する際
にインクが噴射されなくなる問題があつた。 On-demand inkjet printers
Ink is temporarily stored in a pressure chamber formed in the printing head and communicating with the nozzle slit through an orifice, and a vibration element installed on the back of the ink chamber is operated, and the vibration causes the ink to pass through the orifice and exit from the nozzle slit. It is designed to eject ink particles. Therefore, the orifice has a structure in which it directly contacts the outside air through the nozzle slit. However, in such a structure, since the orifice is always filled with ink, there is a problem that the ink dries and becomes clogged during non-printing, and the ink is not ejected during printing.
第１図はこの問題点を解決するために提案され
ている目詰り防止装置である。一方の端部にキヤ
ツプ１と復帰バネ２とが形成され、他方の端部が
回動ピン３によてつ回動自在に支持されるアーム
４の背面に、電源に接続されたソレノイド５のプ
ランジヤー５０が接続している。このような構造
で、キヤツピング駆動されると、プランジヤー５
０がアーム４を押圧し、図の鎖線で示す位置より
キヤツプ１を設けたアーム４が移動する。このキ
ヤツプ１の位置にヘツド（図示せず）が非印字時
に配置する構造にしておけば、非印字時に駆動ス
イツチ手段をONすることによりヘツドはキヤツ
プされる。またこの状態でスイツチをOFFすれ
ば、復帰バネ２によりアーム４は元の位置に復帰
する。しかし、このような装置では、キヤツプ１
の開閉時に、ヘツドにソレノイド５の振動が伝わ
り、ヘツドのノズルスリツト部からインクが飛散
してしまうという不都合な点がある。この点を解
決するために、ソレノイド５にダンパー装置を設
けるか、あるいは、ソレノイド５の代わりにモー
ターを用いるといつた装置が考えられるが、この
ような装置ではコストが高くなるという不都合な
点があり、いずれにしても以上のような装置では
実用化に不向きである。 FIG. 1 shows a clogging prevention device proposed to solve this problem. A solenoid 5 connected to a power source is connected to the back of an arm 4, which has a cap 1 and a return spring 2 formed at one end and is rotatably supported at the other end by a rotation pin 3. Plunger 50 is connected. With this structure, when the capping is driven, the plunger 5
0 presses the arm 4, and the arm 4 on which the cap 1 is attached moves from the position shown by the chain line in the figure. If the structure is such that a head (not shown) is placed at the position of the cap 1 when not printing, the head can be capped by turning on the drive switch means when not printing. If the switch is turned off in this state, the arm 4 will return to its original position by the return spring 2. However, in such a device, cap 1
When the head is opened and closed, the vibration of the solenoid 5 is transmitted to the head, causing ink to scatter from the nozzle slit portion of the head. To solve this problem, a damper device may be provided for the solenoid 5, or a motor may be used instead of the solenoid 5, but such devices have the disadvantage of high cost. However, in any case, the above-mentioned device is not suitable for practical use.
この発明は、上記実情に鑑みてなされたもの
で、インクジエツトプリンタの非印字時に、ノズ
ルからインクを飛散することなく、低価格で、且
つ、簡単な構造で、印字ヘツド部の目詰りを防ぐ
インクジエツトプリンタの目詰り防止装置の提供
を目的とする。 This invention was made in view of the above-mentioned circumstances, and prevents clogging of the print head section at a low cost and with a simple structure without causing ink to scatter from the nozzles when the inkjet printer is not printing. The purpose of this invention is to provide a clogging prevention device for inkjet printers.
この発明は、非印字時にキヤリツジを右端また
は左端の非走行部に待機させ、この非走行部で印
字ヘツドをキヤツプするインクジエツトプリンタ
の目詰り防止装置において、キヤツプ３４に設け
られ、前記キヤリツジの非走行部での移動に応じ
て前記キヤリツジと同じ方向に移動するキヤツプ
駆動ピン３６を設けるとともに、前記キヤツプ３
４の背面部と固定板間を少なくとも２本の平行な
アーム３２で連結し、且つ各アームの両端部をピ
ン３７で回転自在に支持し、前記アーム３２は該
アームがキヤリツジ移動方向と略垂直となつたと
きに前記キヤツプ３４が前記印字ヘツドを完全に
キヤツプする長さに設定されていることを特徴と
する。 The present invention is a clogging prevention device for an inkjet printer in which a carriage is placed on standby in a non-running section at the right end or left end during non-printing, and a printing head is capped in this non-running section. A cap drive pin 36 is provided which moves in the same direction as the carriage in accordance with the movement of the carriage, and the cap 3
4 and the fixed plate are connected by at least two parallel arms 32, and both ends of each arm are rotatably supported by pins 37. The present invention is characterized in that the length of the cap 34 is set to completely cover the print head when the print head is reached.
以下図面を参照してこの発明の実施例につき説
明する。 Embodiments of the present invention will be described below with reference to the drawings.
第２図は、この発明に係る目詰り防止装置を適
用したインクジエツトプリンタの印字部の構成図
である。 FIG. 2 is a block diagram of a printing section of an inkjet printer to which the clogging prevention device according to the present invention is applied.
同図において、プリンタ基体１１にレール１２
が敷設されており、レール１２の上を、印字ヘツ
ド部１３を付設したキヤリツジ１４が摺動する構
造にある。キヤリツジ１４は、非印字時には図に
鎖線で示す待機位置Ａにあり、印字時には走行部
Ｂをレール１２に沿つて摺動するようになつてい
る。レール１２と平行に、且つ印字ヘツド部１３
に対面する位置に、走行部Ｂに対応するプラテン
１５が設けられており、このプラテン１５に沿つ
て被印字部材１６が配置されている。非走行部Ｃ
にある待機位置Ａの、印字ヘツド１３に対面する
位置で、目詰り防止装置１７が基体１１に設けら
れている。 In the figure, a rail 12 is attached to a printer base 11.
A carriage 14 with a print head 13 attached thereto slides on the rail 12. The carriage 14 is at a standby position A shown by a chain line in the figure when not printing, and slides along the running section B along the rail 12 when printing. parallel to the rail 12 and the printing head section 13
A platen 15 corresponding to the running section B is provided at a position facing the moving part B, and a printing member 16 is arranged along this platen 15. Non-running part C
A clogging prevention device 17 is provided on the base body 11 at a standby position A at a position facing the print head 13.
このような構成において、キヤリツジ１４は非
印字時には待機位置Ａに帰還し、この帰還に応じ
て目詰り防止装置１７が駆動して印字ヘツド部１
３をキヤツプする。 In such a configuration, the carriage 14 returns to the standby position A when not printing, and in response to this return, the clogging prevention device 17 is driven to close the print head section 1.
Capture 3.
次に、この目詰り防止装置につき、第３図ａ，
ｂを説明する。 Next, regarding this clogging prevention device, Fig. 3a,
Explain b.
第３図ａ，ｂは、この発明の実施例である目詰
り防止装置の概略外観図、およびその動作を説明
するための図である。 FIGS. 3a and 3b are a schematic external view of a clogging prevention device according to an embodiment of the present invention, and a diagram for explaining its operation.
第３図ａにおいて、プリンタ本体に固定されて
いる固定板であるアーム支持板３１にキヤツプ移
動手段である平板形のアーム３２ａ，３２ｂの
各々の一方の端部がピン３７ａ，３７ｂによつて
回動自在に支持されており、アーム３２ａ，３２
ｂの他方の端部はキヤツプ３４の背面側に取付け
られているキヤツプ支持板３３にピン３７ｃ，３
７ｄによつて回動自在に支持されている。 In FIG. 3a, one end of each of planar arms 32a and 32b, which are cap moving means, is rotated by pins 37a and 37b on an arm support plate 31, which is a fixed plate fixed to the printer main body. The arms 32a, 32 are movably supported.
The other end of b is attached to the cap support plate 33 attached to the back side of the cap 34 with pins 37c and 3.
It is rotatably supported by 7d.
また、各アーム３２ａ，３２ｂは平行にある。
キヤツプ支持板３３の正面端縁部にキヤツプ３４
が、右側方端縁部に復帰バネ３５が設けられてい
る。キヤツプ３４の左端縁部にキヤツプ駆動ピン
３６が取着されている。この目詰り防止装置３０
は、キヤツプ３４の開口面とレール１２とが対面
するように、且つ駆動ピン３６がキヤリツジ１４
の帰還の際にキヤリツジ１４と接触するように、
基体１１に取付られる。さらに、アーム３２ａ，
３２ｂは、該アームがキヤリツジ移動方向と略垂
直となつたときに（第３図ｂの２点鎖線で示す状
態）、キヤツプ３４が印字ヘツド部１３を完全に
キヤツプする長さに設定されている。 Moreover, each arm 32a, 32b is in parallel.
A cap 34 is attached to the front edge of the cap support plate 33.
However, a return spring 35 is provided at the right edge. A cap drive pin 36 is attached to the left edge of the cap 34. This clogging prevention device 30
is arranged such that the opening surface of the cap 34 and the rail 12 face each other, and the drive pin 36 is connected to the carriage 14.
so that it comes into contact with the carriage 14 when returning.
It is attached to the base 11. Further, arm 32a,
32b is set to a length such that the cap 34 completely covers the printing head section 13 when the arm is substantially perpendicular to the direction of carriage movement (the state shown by the two-dot chain line in FIG. 3b). .
以上のような構成において、キヤリツジ１４が
印字を終了し、待機位置に帰還すると、第４図ｂ
に示すように駆動ピン３６が押動され移動する。
駆動ピン３６の移動にともなつて、第４図ｂに鎖
線で示すように、アーム３２ａ，３２ｂがキヤツ
プ支持板３３に垂直な位置に移動し、その際キヤ
ツプ３４とアーム３１との距離が増大してつまり
キヤツプ３４が印字ヘツド部１３に接近してキヤ
ツプ３４が印字ヘツド部１３をキヤツプする。キ
ヤリツジ１４が印字時に待機位置を離れると復帰
バネ３５によつてキヤツプ３４は初期の状態に復
帰する。このようにして、非印字時にのみ、印字
ヘツド部１３をキヤツプすることができる。 In the above configuration, when the carriage 14 finishes printing and returns to the standby position, the position shown in FIG.
The drive pin 36 is pushed and moved as shown in FIG.
As the drive pin 36 moves, the arms 32a and 32b move to a position perpendicular to the cap support plate 33, as shown by the chain line in FIG. 4b, and at this time the distance between the cap 34 and the arm 31 increases. In other words, the cap 34 approaches the print head 13 and caps the print head 13. When the cartridge 14 leaves the standby position during printing, the return spring 35 returns the cap 34 to its initial state. In this way, the print head 13 can be capped only when not printing.
以上のように、この発明によれば、キヤリツジ
の非走行部での移動に応じて印字ヘツド部がキヤ
ツプされていくが、このときキヤツプ３４の方向
はキヤリツジの走行方向に常に平行であるため
に、隙間のない状態で確実に印字ヘツドのキヤツ
プが行われていく。またアーム３２は、該アーム
がキヤリツジ移動方向と略垂直なつたときにキヤ
ツプ３４が印字ヘツドを完全にキヤツプする長さ
に設定されているため、キヤツプ後に印字ヘツド
に前後方向の力が作用してもキヤツプ３４が左右
に動いたりすることがない。すなわち、キヤツプ
の確実性を高めることができる。 As described above, according to the present invention, the printing head section is capped as the carriage moves in the non-travelling section, but at this time, the direction of the cap 34 is always parallel to the traveling direction of the carriage. , the printing head is reliably capped without any gaps. In addition, the arm 32 is set to a length such that the cap 34 completely covers the print head when the arm is perpendicular to the direction of carriage movement, so that a force in the front and rear direction is applied to the print head after capping. However, the cap 34 does not move left or right. In other words, the reliability of the cap can be improved.
第１図は、通常提案されるインクジエツトプリ
ンタの目詰り防止装置、第２図は、この発明に係
わる目詰り防止装置を適用したインクジエツトプ
リンタの印字部の構成図であり、第３図ａ，ｂ
は、この発明の実施例である目詰り防止装置の概
略外観図、およびその動作を説明するための図で
ある。
１３……印字ヘツド部、１４……キヤリツジ、
３６……キヤツプ駆動ピン、３２ａ，３２ｂ……
アーム、Ｃ……非走行部。
Fig. 1 shows a clogging prevention device for an inkjet printer that is usually proposed, Fig. 2 shows a configuration diagram of a printing section of an inkjet printer to which the clogging prevention device according to the present invention is applied, and Fig. 3a ,b
1 is a schematic external view of a clogging prevention device according to an embodiment of the present invention, and a diagram for explaining its operation. 13... Print head section, 14... Carriage,
36... Cap drive pin, 32a, 32b...
Arm, C...non-running part.
Claims (1)
走行部に待機させ、この非走行部で印字ヘツドを
キヤツプするインクジエツトプリンタの目詰り防
止装置において、キヤツプ３４に設けられ、前記
キヤリツジの非走行部での移動に応じて前記キヤ
リツジと同じ方向に移動するキヤツプ駆動ピン３
６を設けるとともに、前記キヤツプ３４の背面部
と固定板間を少なくとも２本の平行なアーム３２
で連結し、且つ各アームの両端部をピン３７で回
転自在に支持し、前記アーム３２は該アームがキ
ヤリツジ移動方向と略垂直となつたときに前記キ
ヤツプ３４が前記印字ヘツドを完全にキヤツプす
る長さに設定されていることを特徴とするインク
ジエツトプリンタの目詰り防止装置。1. A clogging prevention device for an inkjet printer in which a carriage is placed on standby in a non-travelling section at the right end or left end when not printing, and a printing head is capped in this non-travelling section, which is provided in the cap 34 and is installed in the non-travelling section of the cartridge. a cap drive pin 3 that moves in the same direction as the carriage in accordance with the movement of the carriage;
6, and at least two parallel arms 32 are provided between the back surface of the cap 34 and the fixing plate.
and both ends of each arm are rotatably supported by pins 37, and when the arm 32 is substantially perpendicular to the direction of carriage movement, the cap 34 completely caps the printing head. A clogging prevention device for an inkjet printer, characterized in that the length is set.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7614382A JPS58193156A (en) | 1982-05-06 | 1982-05-06 | Preventing device for clogging of ink jet printer |
| US06/491,666 US4533927A (en) | 1982-05-06 | 1983-05-05 | Capping mechanism for preventing nozzle blocking in an ink jet system printer |
| DE8383302570T DE3366542D1 (en) | 1982-05-06 | 1983-05-06 | Capping mechanism for preventing nozzle blocking in an ink jet system printer |
| EP83302570A EP0094220B1 (en) | 1982-05-06 | 1983-05-06 | Capping mechanism for preventing nozzle blocking in an ink jet system printer |
| CA000427675A CA1216463A (en) | 1982-05-06 | 1983-05-06 | Capping mechanism for preventing nozzle blocking in an ink jet system printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7614382A JPS58193156A (en) | 1982-05-06 | 1982-05-06 | Preventing device for clogging of ink jet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58193156A JPS58193156A (en) | 1983-11-10 |
| JPH0213910B2 true JPH0213910B2 (en) | 1990-04-05 |
Family
ID=13596770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7614382A Granted JPS58193156A (en) | 1982-05-06 | 1982-05-06 | Preventing device for clogging of ink jet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58193156A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4567494A (en) * | 1984-06-29 | 1986-01-28 | Hewlett-Packard Company | Nozzle cleaning, priming and capping apparatus for thermal ink jet printers |
| DE69031135T2 (en) * | 1989-11-22 | 1998-02-12 | Canon Kk | Color beam recording device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648644B2 (en) * | 1977-10-03 | 1981-11-17 | ||
| JPS576550B2 (en) * | 1976-03-19 | 1982-02-05 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648644U (en) * | 1979-09-19 | 1981-04-30 | ||
| JPS576550U (en) * | 1980-06-13 | 1982-01-13 | ||
| JPS57171651U (en) * | 1981-04-22 | 1982-10-28 |
-
1982
- 1982-05-06 JP JP7614382A patent/JPS58193156A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576550B2 (en) * | 1976-03-19 | 1982-02-05 | ||
| JPS5648644B2 (en) * | 1977-10-03 | 1981-11-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58193156A (en) | 1983-11-10 |
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