JP2000190465A - Mounting structure and fixing method of ink jet type recording head - Google Patents
Mounting structure and fixing method of ink jet type recording headInfo
- Publication number
- JP2000190465A JP2000190465A JP36749198A JP36749198A JP2000190465A JP 2000190465 A JP2000190465 A JP 2000190465A JP 36749198 A JP36749198 A JP 36749198A JP 36749198 A JP36749198 A JP 36749198A JP 2000190465 A JP2000190465 A JP 2000190465A
- Authority
- JP
- Japan
- Prior art keywords
- recording head
- pressure receiving
- head
- pressing
- receiving member
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、インクジェット式
プリンタやインクジェット式プロッタ等のインクジェッ
ト記録装置に関し、特に記録ヘッドの取付構造及び固定
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus such as an ink jet printer or an ink jet plotter, and more particularly to a mounting structure and a fixing method of a recording head.
【０００２】[0002]
【従来の技術】この種のインクジェット式記録装置（以
下、記録装置という）では、２つの記録ヘッドを主走査
方向に並べた状態でインク供給路形成部材に取り付けて
ヘッドユニットに纏め、案内軸により案内されて主走査
方向に沿って移動するキャリッジにヘッドユニットを取
り付けて記録機構を構成し、この記録機構を往復移動さ
せながら記録ヘッドからインク滴を吐出させて画像や文
字等を記録紙上に記録するものがある。2. Description of the Related Art In an ink jet type recording apparatus of this type (hereinafter referred to as a recording apparatus), two recording heads are attached to an ink supply path forming member in a state where they are arranged in a main scanning direction, and are assembled into a head unit. A recording mechanism is configured by attaching a head unit to a carriage that is guided and moves along the main scanning direction, and ejects ink droplets from the recording head while reciprocating the recording mechanism to record images and characters on recording paper. There is something to do.
【０００３】このように２つの記録ヘッドを並べて取り
付けたヘッドユニットでは、組立工程において、記録ヘ
ッド同士をアライメント（整合）することにより、イン
ク滴の着弾位置のずれをなくして画質の向上を図ってい
る。In such a head unit in which two recording heads are mounted side by side, the recording heads are aligned in the assembling process so that the landing positions of ink droplets are not shifted and the image quality is improved. I have.
【０００４】例えば、多色記録を行えるようにした記録
装置では、黒色用の記録ヘッドを基準ヘッドとし、カラ
ー用の記録ヘッドを取付位置が調整可能な調整用ヘッド
とし、位置調整機構によりカラー用の記録ヘッドをノズ
ルプレートの面方向に移動させてカラー用の記録ヘッド
のノズル列を黒色用の記録ヘッドのノズル列に合わせて
いる。そして、位置調整機構は、キャリッジに設けたカ
ムとレバーとにより構成され、レバーを調整することに
よりカムが動き、カムに当接した記録ヘッドをノズルプ
レートの面方向に移動させる。For example, in a recording apparatus capable of performing multi-color recording, a recording head for black is used as a reference head, a recording head for color is used as an adjusting head whose mounting position can be adjusted, and a color adjusting head is used by a position adjusting mechanism. Is moved in the surface direction of the nozzle plate to align the nozzle row of the color print head with the nozzle row of the black print head. The position adjustment mechanism includes a cam and a lever provided on the carriage. The cam is moved by adjusting the lever, and the recording head in contact with the cam is moved in the surface direction of the nozzle plate.
【０００５】記録ヘッドにおける位置調整は、実際に記
録紙上に記録したテストパターンに基づいて行ってい
る。即ち、記録したテストパターンから両記録ヘッド間
のノズル列のずれ具合を目視により判断し、ずれの度合
い応じて位置調整機構を操作して記録ヘッドの位置を調
整する。[0005] Position adjustment in the recording head is performed based on a test pattern actually recorded on recording paper. That is, the position of the print head is adjusted by operating the position adjusting mechanism according to the degree of the shift by visually checking the degree of shift of the nozzle row between the two print heads from the printed test pattern.
【０００６】ところで、この種の記録装置では画像の高
画質化を図るため、例えば、次の試みがなされている。[0006] By the way, in order to improve the image quality of this type of recording apparatus, for example, the following attempts have been made.
【０００７】第１に、３つ以上の記録ヘッドをヘッドユ
ニットに搭載する試みがなされている。即ち、１ヘッド
あたりの色数を１〜２色程度に制限した記録ヘッドを３
つ以上用意し、各記録ヘッドを主走査方向に並べて取り
付けている。この構成により、４色や６色或いはそれ以
上の色数を使い分けることが容易になり、画質の向上が
図れる。さらに、１つ１つの記録ヘッドが担う色数が少
ないので、記録ヘッドの歩留まりが向上し、結果的に記
録ヘッドを安価に提供することができる。First, attempts have been made to mount three or more recording heads on a head unit. That is, three print heads in which the number of colors per head is limited to about one or two colors are used.
One or more recording heads are prepared, and the recording heads are mounted side by side in the main scanning direction. With this configuration, it is easy to properly use four, six, or more colors, and the image quality can be improved. Further, since the number of colors carried by each recording head is small, the yield of the recording head is improved, and as a result, the recording head can be provided at low cost.
【０００８】第２に、副走査方向の長さを短くした記録
ヘッドを用い、記録ヘッドを挟んだ状態で副走査方向に
離隔して対向配置される一対の紙送りローラの配設間隔
を短くする試みがなされている。これにより、記録紙の
ノズルプレートが臨む部分をより平面に近い状態にする
ことができ、画質向上に寄与する。Second, a recording head having a reduced length in the sub-scanning direction is used, and the interval between a pair of paper feed rollers that are opposed to each other while being separated from each other in the sub-scanning direction with the recording head interposed therebetween is shortened. Attempts have been made to do so. As a result, the portion of the recording paper facing the nozzle plate can be made closer to a flat surface, which contributes to improving the image quality.
【０００９】第３に、ドット径を縮径すると共にドット
密度を増加して解像度を高めることがなされている。Third, the resolution is increased by reducing the dot diameter and increasing the dot density.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、このよ
うな構成を採用した場合には、従来の記録ヘッドの位置
調整機構や調整作業をそのまま適用することが困難とな
った。However, when such a configuration is employed, it is difficult to apply the conventional position adjustment mechanism and adjustment work of the recording head as they are.
【００１１】即ち、３つ以上の記録ヘッドを取り付けた
場合には、位置調整対象となる記録ヘッド、即ち、基準
となる記録ヘッドを除く記録ヘッドのそれぞれに対して
位置調整機構を設ける必要があり、位置調整機構が占め
る空間が大きくなる。そして、この位置調整機構が干渉
するので、記録ヘッドを小さくしても紙送りローラの配
設間隔を短くすることが困難となった。That is, when three or more recording heads are mounted, it is necessary to provide a position adjusting mechanism for each of the recording heads to be position-adjusted, that is, the recording heads other than the reference recording head. Therefore, the space occupied by the position adjusting mechanism is increased. Since the position adjusting mechanism interferes, it is difficult to shorten the interval between the paper feed rollers even if the recording head is made smaller.
【００１２】また、求める画質における位置精度は非常
に高いので、ドット径を縮径したことも相俟って、ノズ
ル列のずれを目視で判断することが困難になった。In addition, since the positional accuracy in the required image quality is very high, it is difficult to visually determine the nozzle row displacement, in combination with the reduced dot diameter.
【００１３】仮に、テストパターンを目視できたとして
も、記録ヘッドの数が増加したことに伴い、テストパタ
ーンを何回も記録しないと各記録ヘッドのノズル列を正
確に位置合わせすることができず、正確な位置合わせを
行うためには多大な労力を要してしまう。[0013] Even if the test pattern can be visually observed, the nozzle array of each print head cannot be accurately aligned unless the test pattern is printed many times due to the increase in the number of print heads. In order to perform accurate positioning, a great deal of labor is required.
【００１４】本発明は、このような事情に鑑みてなされ
たものであり、その目的は、高画質化に適した記録ヘッ
ドの取付構造、及び、記録ヘッドの固定方法を提供する
ことである。The present invention has been made in view of such circumstances, and an object of the present invention is to provide a recording head mounting structure and a recording head fixing method suitable for high image quality.
【００１５】[0015]
【課題を解決するための手段】本発明は、前記目的を達
成するために提案されたものであり、請求項１に記載の
ものは、副走査方向に沿って開設した多数のノズル開口
部を有する記録ヘッドを、取付ベースに固定するインク
ジェット式記録ヘッドの取付構造において、前記取付ベ
ースに、記録ヘッドに当接することにより記録ヘッドの
位置を調整する位置調整機構を取り付けたことを特徴と
する。SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and the invention as defined in claim 1 has a number of nozzle openings formed along the sub-scanning direction. In a mounting structure of an ink jet recording head for fixing a recording head having the recording head to a mounting base, a position adjusting mechanism for adjusting a position of the recording head by contacting the recording head is mounted on the mounting base.
【００１６】ここで、「走査方向」とは、記録紙に対す
る記録ヘッドの相対的な移動方向を意味し、記録ヘッド
を記録紙の幅方向に移動可能に構成し、記録紙を幅方向
と直交する紙送り方向に移動可能に構成した記録装置で
は、「主走査方向」が記録ヘッドの移動方向に相当し、
「副走査方向」が紙送り方向に相当する。Here, the "scanning direction" means the direction of relative movement of the recording head with respect to the recording paper. The recording head is configured to be movable in the width direction of the recording paper. In the recording apparatus configured to be movable in the paper feeding direction, the “main scanning direction” corresponds to the moving direction of the recording head,
The “sub-scanning direction” corresponds to the paper feeding direction.
【００１７】また、「取付ベース」は、記録ヘッドが取
り付けられる部材を意味する。従って、キャリッジの底
部に記録ヘッドを直接取り付けたヘッドユニットでは、
キャリッジの底部が取付ベースとなる。また、「ノズル
列」とは、ノズル開口部の列を意味する。The "mounting base" means a member to which the recording head is mounted. Therefore, in the head unit in which the recording head is directly attached to the bottom of the carriage,
The bottom of the carriage is the mounting base. The “nozzle row” means a row of nozzle openings.
【００１８】請求項２に記載のものは、前記位置調整機
構と記録ヘッドとの当接位置を、ノズル列を挟んで対向
するヘッドケース側面の範囲内に収めたことを特徴とす
る請求項１に記載のインクジェット式記録ヘッドの取付
構造である。According to a second aspect of the present invention, the contact position between the position adjusting mechanism and the recording head is set within a range of a side surface of a head case opposed to the nozzle row. 2. The mounting structure of an ink jet recording head according to (1).
【００１９】ここで、「ヘッドケース側面の範囲内」と
は、記録ヘッドの鍔部からノズル開口部方向に突出した
ヘッドケース側面の副走査方向一端から他端までの範
囲、要するに、鍔部の側面を除いたヘッドケース側面で
ある。そして、位置調整機構がヘッドケース側面に直接
当接している場合は当然含まれ、当接位置がこの範囲内
にあれば、ヘッドケース側面から外側に突設した突部に
位置調整機構が当接している場合も含まれる。Here, "within the range of the side of the head case" means the range from one end to the other end in the sub-scanning direction of the side of the head case that protrudes from the flange of the recording head in the direction of the nozzle opening. This is the side of the head case excluding the side. The case where the position adjustment mechanism is in direct contact with the side surface of the head case is naturally included, and if the contact position is within this range, the position adjustment mechanism is in contact with the protrusion projecting outward from the side surface of the head case. Is included.
【００２０】請求項３に記載のものは、前記位置調整機
構を、弾性部材によって記録ヘッドを押圧する押圧機構
と、所定の調整範囲で移動可能に取り付けられて押圧機
構からの押圧力を受ける押圧受部材を備えた押圧受機構
とから構成し、押圧機構をノズル列を挟んで対向する一
方のヘッドケース側面側に、押圧受機構を他方のヘッド
ケース側面側にそれぞれ配設したことを特徴とする請求
項１又は請求項２に記載のインクジェット式記録ヘッド
の取付構造である。According to a third aspect of the present invention, the position adjusting mechanism includes a pressing mechanism that presses the recording head by an elastic member, and a pressing mechanism that is movably mounted within a predetermined adjustment range and receives a pressing force from the pressing mechanism. And a pressure receiving mechanism having a receiving member, wherein the pressing mechanism is disposed on one side of the head case side facing the nozzle row, and the pressure receiving mechanism is disposed on the other side of the head case side. An ink jet recording head mounting structure according to claim 1 or 2.
【００２１】請求項４に記載のものは、前記押圧受機構
を、副走査方向の一端側に配置した第１押圧受機構と、
副走査方向の他端側に配置した第２押圧受機構とから構
成し、これらの第１押圧受機構及び第２押圧受機構を、
厚さ方向に貫通した貫通開口部及び記録ヘッドに当接可
能な当接周面を備えた板状の押圧受部材と、取付ベース
の表面から立設され、押圧受部材が載置される押圧受部
材載置部を先端に設けた押圧受部材支持部と、押圧受部
材載置部に設けられて押圧受部材の貫通開口部が挿入さ
れ、押圧受部材載置部に載置された押圧受部材を所定の
調整範囲で移動可能に支持する押圧受部材支持軸と、押
圧受部材をヘッド位置調整後の状態で固定する止着手段
とから構成したことを特徴とする請求項３に記載のイン
クジェット式記録ヘッドの取付構造である。According to a fourth aspect of the present invention, there is provided a first pressure receiving mechanism wherein the pressure receiving mechanism is disposed at one end in the sub-scanning direction;
A second press receiving mechanism disposed on the other end side in the sub-scanning direction, and the first press receiving mechanism and the second press receiving mechanism
A plate-shaped pressure receiving member having a through opening penetrating in the thickness direction and a contact peripheral surface capable of contacting the recording head; and a pressure standing upright from the surface of the mounting base and on which the pressure receiving member is placed. A pressure receiving member supporting portion provided with a receiving member mounting portion at the tip, and a through-opening of the pressure receiving member provided in the pressure receiving member mounting portion and inserted into the pressure receiving member mounting portion, and the pressing portion mounted on the pressure receiving member mounting portion. 4. A pressure receiving member supporting shaft movably supporting the receiving member within a predetermined adjustment range, and a fastening means for fixing the pressure receiving member in a state after the head position is adjusted. Is a mounting structure of the ink jet type recording head.
【００２２】請求項５に記載のものは、前記止着手段を
雄ねじからなる止着ねじにより構成し、尚且つ、押圧受
部材支持部には止着ねじが螺合可能な雌ねじを設け、止
着ねじを雌ねじに螺合して、止着ねじの軸部を押圧受部
材支持軸としたことを特徴とする請求項４に記載のイン
クジェット式記録ヘッドの取付構造である。According to a fifth aspect of the present invention, the fastening means is constituted by a fastening screw composed of a male screw, and a female screw to which the fastening screw can be screwed is provided at the pressing receiving member support portion. 5. The mounting structure for an ink jet recording head according to claim 4, wherein the fastening screw is screwed into the female screw, and a shaft of the fastening screw is used as a support shaft for the pressure receiving member.
【００２３】請求項６に記載のものは、押圧受部材に、
前記弾性部材の押圧力に抗して押圧受部材を移動可能な
調整治具用の係合部を形成したことを特徴とする請求項
４又は請求項５に記載のインクジェット式記録ヘッドの
取付構造である。According to a sixth aspect of the present invention, there is provided the pressure receiving member,
6. The mounting structure for an ink jet recording head according to claim 4, wherein an engagement portion for an adjustment jig capable of moving the pressure receiving member against the pressing force of the elastic member is formed. It is.
【００２４】請求項７に記載のものは、前記他方のヘッ
ドケース側面には、第１押圧受機構の押圧受部材が当接
可能な当接突片を外側に突設して、この当接突片におけ
る副走査方向の一端側の側面とヘッドケース側面とに上
記押圧受部材を当接させ、一方のヘッドケース側面にお
ける副走査方向の他端側には、弾性部材と当接するヘッ
ド押圧部を外側に突設し、弾性部材によってヘッド押圧
部を第１押圧受機構の押圧受部材に向けて斜め方向に押
圧するように構成したことを特徴とする請求項４から請
求項６の何れかに記載のインクジェット式記録ヘッドの
取付構造である。According to a seventh aspect of the present invention, on the side surface of the other head case, a contact protruding piece which can press the pressure receiving member of the first pressure receiving mechanism to protrude outward is provided. The pressing member is brought into contact with the side surface on one end side in the sub-scanning direction of the protruding piece and the side surface of the head case, and the other end side in the sub-scanning direction on one side of the head case is provided with a head pressing portion abutting on the elastic member 7. The projection is provided outwardly, and the head pressing portion is obliquely pressed toward the pressing receiving member of the first pressing receiving mechanism by an elastic member. 2. The mounting structure of an ink jet recording head according to (1).
【００２５】請求項８に記載のものは、前記位置調整機
構を主走査方向に沿って複数並べて配設し、複数個の記
録ヘッドを主走査方向に沿って取り付けたことを特徴と
する請求項１から請求項７の何れかに記載のインクジェ
ット式記録ヘッドの取付構造である。According to another aspect of the present invention, a plurality of the position adjusting mechanisms are arranged side by side in the main scanning direction, and a plurality of recording heads are attached along the main scanning direction. An attachment structure for an ink jet recording head according to any one of claims 1 to 7.
【００２６】請求項９に記載のものは、前記位置調整機
構を、ノズル列を挟んで対向する一方のヘッドケース側
面側に配設され、弾性部材支持部を備える押圧機構と、
他方のヘッドケース側面側に配設され、押圧受部材支持
部を備える押圧受機構とから構成し、この押圧受機構
を、副走査方向の一端側に配置した第１押圧受機構と副
走査方向の他端側に配置した第２押圧受機構とから構成
し、押圧機構を副走査方向の他端側に配置して、この押
圧機構の弾性部材支持部を、隣り合う位置調整機構にお
ける第２押圧受機構の押圧受部材支持部としたことを特
徴とする請求項８に記載のインクジェット式記録ヘッド
の取付構造である。According to a ninth aspect of the present invention, there is provided a pressing mechanism provided with an elastic member supporting portion, wherein the position adjusting mechanism is disposed on one side of the side of the head case opposite to the nozzle row.
A pressure receiving mechanism provided on the other side of the head case and having a pressure receiving member supporting portion, wherein the pressure receiving mechanism is provided with a first pressure receiving mechanism disposed at one end in the sub scanning direction and a sub scanning direction. And a second pressing receiving mechanism disposed on the other end of the second pressing mechanism. The pressing mechanism is disposed on the other end in the sub-scanning direction. 9. The mounting structure for an ink jet recording head according to claim 8, wherein the pressure receiving member supports the pressure receiving mechanism.
【００２７】請求項１０に記載のものは、位置基準とな
る第１記録ヘッドのノズル列と仮組状態にある第２記録
ヘッドのノズル列を撮像する撮像工程と、この撮像工程
で撮像された画像に基づいて、第２記録ヘッドの押圧受
部材をアライメント装置の調整治具により移動して第１
記録ヘッドのノズル列に対して第２記録ヘッドのノズル
列の位置を所定の位置関係に合わせ、第２記録ヘッドの
位置を決定する位置決定工程と、位置決定工程で決定さ
れた位置で押圧受部材を止着手段により固定し、第２記
録ヘッドを固定する位置固定工程とを経ることを特徴と
するインクジェット式記録ヘッドの固定方法である。According to a tenth aspect of the present invention, an image pickup step of picking up an image of a nozzle line of the first recording head serving as a position reference and a nozzle line of the second recording head in a tentatively assembled state, and the image pickup step The press receiving member of the second recording head is moved by the adjustment jig of the alignment apparatus based on the
A position determining step of determining the position of the second recording head by aligning the position of the nozzle array of the second recording head with the nozzle array of the recording head in a predetermined positional relationship; A method for fixing a member by fastening means and a position fixing step for fixing the second recording head.
【００２８】ここで、「記録ヘッドの仮組状態」とは、
記録ヘッドが位置調整可能な状態で取り付けられている
ことを意味する。Here, the "temporary assembling state of the recording head" means
This means that the recording head is mounted in a position-adjustable state.
【００２９】[0029]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００３０】図１は、インクジェット式記録装置の記録
機構１を主走査方向から見た概略構成図、図２はヘッド
ユニット２の平面図、図３はヘッドユニット２の底面図
である。FIG. 1 is a schematic configuration diagram of a recording mechanism 1 of an ink jet recording apparatus viewed from a main scanning direction, FIG. 2 is a plan view of a head unit 2, and FIG.
【００３１】図１に示した記録機構１は、主走査方向に
長尺な案内軸３により支持されて主走査方向に沿って移
動するキャリッジ４と、このキャリッジ４に取り付けら
れてキャリッジ４と共に移動するヘッドユニット２とを
備えている。The recording mechanism 1 shown in FIG. 1 is supported by a guide shaft 3 which is long in the main scanning direction and moves along the main scanning direction, and is attached to the carriage 4 and moves together with the carriage 4. And a head unit 2 that performs the operation.
【００３２】キャリッジ４は、インクカートリッジを保
持可能なカートリッジ保持部４ａを内側空部に備えた箱
状部材である。そして、カートリッジ保持部４ａの底部
には、下方からヘッドユニット２を取り付ける。The carriage 4 is a box-shaped member having a cartridge holding portion 4a capable of holding an ink cartridge in an inner space. Then, the head unit 2 is attached to the bottom of the cartridge holder 4a from below.
【００３３】このキャリッジ４は、タイミングベルトを
介してステップモータに接続されており、記録機構１を
主走査方向に沿って往復移動できるように構成されてい
る。The carriage 4 is connected to a step motor via a timing belt, and is configured to reciprocate the recording mechanism 1 in the main scanning direction.
【００３４】図１及び図２に示すように、ヘッドユニッ
ト２は、キャリッジ４に止着される取付ベース５を備え
る。この取付ベース５は、上部が開放した樹脂製の箱状
部材により構成され、底部５ａには記録ヘッド６を取り
付けるためのヘッド取付開口部５ｂを開設してある。As shown in FIGS. 1 and 2, the head unit 2 has a mounting base 5 fixed to the carriage 4. The mounting base 5 is formed of a resin box-shaped member having an open top, and has a head mounting opening 5b for mounting the recording head 6 at the bottom 5a.
【００３５】記録ヘッド６は、ヘッドユニット２の上方
側からヘッド取付開口部５ｂを貫通して取付ベース５の
下方に突出するように取り付けられている。なお、記録
ヘッド６の上端部分には、鍔部６ａを副走査方向（紙送
り方向、図１おいて左右方向に相当）に延設してあり、
この鍔部６ａを取付ベース５の底部５ａに上方から当接
させた状態で、記録ヘッド６を取付ベース５に対して止
着する。The recording head 6 is mounted so as to protrude from below the mounting base 5 through the head mounting opening 5b from above the head unit 2. At the upper end of the recording head 6, a flange 6a extends in the sub-scanning direction (paper feeding direction, corresponding to the horizontal direction in FIG. 1).
The recording head 6 is fixed to the mounting base 5 with the flange 6a abutting against the bottom 5a of the mounting base 5 from above.
【００３６】そして、図３に示すように、本実施形態で
は３つの記録ヘッド６（６Ａ，６Ｂ，６Ｃ）を主走査方
向に沿って並べた状態で配設してあり、取付ベース５の
底面には各記録ヘッド６の位置を調整する位置調整機構
７を設けてある。なお、この位置調整機構７について
は、後で詳しく説明する。As shown in FIG. 3, in this embodiment, three recording heads 6 (6A, 6B, 6C) are arranged in a state of being arranged in the main scanning direction. Is provided with a position adjusting mechanism 7 for adjusting the position of each recording head 6. The position adjusting mechanism 7 will be described later in detail.
【００３７】この記録ヘッド６の上方には、インク供給
路形成部材１１を配設する。このインク供給路形成部材
１１は、インクカートリッジから記録ヘッド６に供給さ
れるインクが流れるインク供給路を内部に形成した部材
である。このインク供給路は、記録ヘッド６内のインク
供給管６ｅに連通している。Above the recording head 6, an ink supply path forming member 11 is provided. The ink supply path forming member 11 is a member in which an ink supply path through which ink supplied from the ink cartridge to the recording head 6 flows is formed. This ink supply path communicates with an ink supply pipe 6e in the recording head 6.
【００３８】本実施形態におけるインク供給路形成部材
１１は、インク供給路形成部材本体１１ａと、インク供
給路形成部材本体１１ａの上部に嵌合する蓋部材１１ｂ
とから構成されており、蓋部材１１ｂの上面にはフィル
タユニット１２を取り付ける。このフィルタユニット１
２はインクカートリッジから供給されるインク中の異物
を除去する部材であり、フィルタユニット１２で濾過し
たインクは蓋部材１１ｂに設けた連通孔（図示せず）を
通じてインク供給路に供給される。The ink supply path forming member 11 according to the present embodiment includes an ink supply path forming member main body 11a and a lid member 11b fitted on the upper portion of the ink supply path forming member main body 11a.
The filter unit 12 is attached to the upper surface of the lid member 11b. This filter unit 1
Reference numeral 2 denotes a member for removing foreign matter in the ink supplied from the ink cartridge. The ink filtered by the filter unit 12 is supplied to the ink supply path through a communication hole (not shown) provided in the lid member 11b.
【００３９】このフィルタユニット１２の上面には、フ
ィルタユニット１２に連通させて中空状のインク導入針
１３を上方に向けて突設する。このインク導入針１３
は、インクカートリッジがカートリッジ保持部４ａにセ
ットされることにより、インクカートリッジ内に挿入さ
れる。On the upper surface of the filter unit 12, a hollow ink introduction needle 13 is provided so as to project upward so as to communicate with the filter unit 12. This ink introduction needle 13
Is inserted into the ink cartridge by setting the ink cartridge in the cartridge holding portion 4a.
【００４０】従って、カートリッジ保持部４ａに保持さ
れたインクカートリッジのインクは、インク導入針１
３、フィルタユニット１２、及び、インク供給路形成部
材１１（インク供給路）を通って記録ヘッド６に供給さ
れる。Accordingly, the ink of the ink cartridge held in the cartridge holding portion 4a is supplied to the ink introduction needle 1
3, the ink is supplied to the recording head 6 through the filter unit 12 and the ink supply path forming member 11 (ink supply path).
【００４１】また、記録ヘッド６の鍔部６ａとインク供
給路形成部材１１との間には、記録ヘッド６と電気的に
接続した状態でプリント配線基板１４を配設する。この
プリント配線基板１４には、記録ヘッド６を駆動するた
めのドライバＩＣ１５を実装してあり、プリンタコント
ローラから供給された制御情報を記録ヘッド６に供給す
る。A printed wiring board 14 is disposed between the collar 6 a of the recording head 6 and the ink supply path forming member 11 while being electrically connected to the recording head 6. A driver IC 15 for driving the recording head 6 is mounted on the printed wiring board 14, and supplies control information supplied from a printer controller to the recording head 6.
【００４２】そして、上記した各部材を取付ベース５に
固定するための固定手段として、取付ベース５には板バ
ネ１６を取り付けてある。この板バネ１６は、図２に示
すように、取付ベース５の外周を区画する壁部の上端部
分に主走査方向に沿って架設してあり、インク供給路形
成部材１１の蓋部材１１ｂの上方の位置には、蓋部材１
１ｂと当接する当接突起１６ａを下向きに突設してあ
る。A leaf spring 16 is attached to the mounting base 5 as fixing means for fixing each of the above members to the mounting base 5. As shown in FIG. 2, the leaf spring 16 is provided along the main scanning direction at the upper end of a wall defining the outer periphery of the mounting base 5, and is disposed above the lid member 11 b of the ink supply path forming member 11. At the position of the lid member 1
A contact protrusion 16a that contacts the first protrusion 1b is provided to project downward.
【００４３】従って、この板バネ１６により、インク供
給路形成部材１１及び記録ヘッド６は取付ベース５の底
部５ａ側に押し付けられて止着される。同時に、インク
供給路形成部材１１と記録ヘッド６とによって挟まれて
いるプリント配線基板１４も固定される。Accordingly, the ink supply path forming member 11 and the recording head 6 are pressed and fixed to the bottom 5a side of the mounting base 5 by the leaf spring 16. At the same time, the printed wiring board 14 sandwiched between the ink supply path forming member 11 and the recording head 6 is also fixed.
【００４４】上記した記録ヘッド６は、図１及び図３に
示すように略直方体ブロック状であり、記録ヘッド６の
底面の形状は副走査方向に長く主走査方向に短い長方形
である。そして、記録ヘッド６は、ＰＺＴ等の圧力発生
素子を内部に収納し、上端部分に上記した鍔部６ａを延
設したヘッドケース６ｂを備える。このヘッドケース６
ｂの下端部分には多数のノズル開口部６ｃを副走査方向
に沿って列設したノズルプレート６ｄを取り付ける。そ
して、このノズルプレート６ｄの隅部には、記録ヘッド
６の位置調整を行うためのターゲットマークを形成して
ある。As shown in FIGS. 1 and 3, the recording head 6 has a substantially rectangular parallelepiped block shape, and the bottom surface of the recording head 6 is a rectangle that is long in the sub-scanning direction and short in the main scanning direction. The recording head 6 includes a head case 6b in which a pressure generating element such as PZT is housed, and the above-mentioned flange portion 6a is extended at an upper end portion. This head case 6
A nozzle plate 6d in which a number of nozzle openings 6c are arranged in a row in the sub-scanning direction is attached to the lower end of b. A target mark for adjusting the position of the recording head 6 is formed at a corner of the nozzle plate 6d.
【００４５】また、ノズルプレート６ｄから鍔部６ａま
での高さは、紙送りローラ１７の直径よりも少し長く設
定してある。この紙送りローラ１７は給紙ローラ１７ａ
と排紙ローラ１７ｂとからなり、記録ヘッド６を挟んで
副走査方向の一端側に給紙ローラ１７ａが、副走査方向
の他端側に排紙ローラ１７ｂがそれぞれ配置される。The height from the nozzle plate 6d to the flange 6a is set slightly longer than the diameter of the paper feed roller 17. This paper feed roller 17 is a paper feed roller 17a.
The paper feed roller 17a is disposed at one end of the recording head 6 in the sub-scanning direction, and the discharge roller 17b is disposed at the other end of the sub-scanning direction.
【００４６】なお、図３（ａ）では、紙送りローラ１７
を１本の長尺なローラとして図示してあるが、この紙送
りローラ１７は、複数個の短尺ローラを主走査方向に並
べて構成しても良い。In FIG. 3A, the paper feed roller 17
Is illustrated as one long roller, but the paper feed roller 17 may be configured by arranging a plurality of short rollers in the main scanning direction.
【００４７】また、ノズルプレート６ｄとヘッドケース
６ｂとの間には、キャビティ（図示せず）が取り付けら
れる。このキャビティは、各ノズル開口部６ｃに対応し
て形成された圧力発生室、及び、この圧力発生室とイン
ク供給管６ｅとの間に形成されるインク室を備える。A cavity (not shown) is provided between the nozzle plate 6d and the head case 6b. The cavity includes a pressure generation chamber formed corresponding to each nozzle opening 6c, and an ink chamber formed between the pressure generation chamber and the ink supply pipe 6e.
【００４８】次に、記録ヘッド６の位置を調整する位置
調整機構７について説明する。Next, the position adjusting mechanism 7 for adjusting the position of the recording head 6 will be described.
【００４９】図３及び図４に示すように、本実施形態の
位置調整機構７は、ノズル列（即ち、ノズル開口部６ｃ
の列）を挟んで主走査方向に対向する一方のヘッドケー
ス６ｂの側面（以下、単にヘッドケース側面という）側
であって、副走査方向の他端側に配設した押圧機構２１
と、他方のヘッドケース側面側に配設した押圧受機構２
２とから構成される。As shown in FIGS. 3 and 4, the position adjusting mechanism 7 of the present embodiment includes a nozzle row (that is, a nozzle opening 6c).
Of the head case 6b that is opposed to the main scanning direction across the main scanning direction (hereinafter simply referred to as the head case side surface) and the other end in the sub-scanning direction.
And a pressure receiving mechanism 2 disposed on the side of the other head case.
And 2.
【００５０】押圧機構２１は、記録ヘッド６の側面を押
圧するコイルバネ２３と、取付ベース５の底面から下向
きに立設し、コイルバネ２３を支持する弾性部材支持部
２４とから構成される。The pressing mechanism 21 includes a coil spring 23 for pressing the side surface of the recording head 6, and an elastic member supporting portion 24 erected downward from the bottom surface of the mounting base 5 to support the coil spring 23.
【００５１】コイルバネ２３は、本願発明における弾性
部材の一種であり、ヘッドケース６ｂの側面から外側
（ノズル列とは反対側）に突設したヘッド押圧部２５
を、第１押圧受機構２２Ａの押圧受部材２６に向けて斜
め方向に押圧する。そして、ヘッド押圧部２５とコイル
バネ２３との当接位置Ａは、ヘッドケース側面の範囲内
に収められている。即ち、この当接位置Ａを、取付ベー
ス５よりも下方に突出したヘッドケース側面の副走査方
向の一端（給紙ローラ１７ａ側の端部）から他端（排紙
ローラ１７ｂ側の端部）の間に設定している。換言すれ
ば、当接位置Ａを、ヘッドケース６ｂの長辺の両端間か
ら前後方向に外れない位置に配置する。さらに、本実施
形態では、弾性部材支持部２４もヘッドケース側面の範
囲内に収めている。The coil spring 23 is a kind of an elastic member according to the present invention, and has a head pressing portion 25 protruding outward from the side surface of the head case 6b (opposite to the nozzle row).
Is pressed obliquely toward the pressure receiving member 26 of the first pressure receiving mechanism 22A. The contact position A between the head pressing portion 25 and the coil spring 23 is contained within the range of the side of the head case. That is, the contact position A is shifted from one end (the end on the paper feed roller 17a side) to the other end (the end on the paper discharge roller 17b side) in the sub-scanning direction of the side surface of the head case projecting below the mounting base 5. Set between. In other words, the contact position A is arranged at a position that does not deviate in the front-rear direction from between both ends of the long side of the head case 6b. Further, in the present embodiment, the elastic member supporting portion 24 is also accommodated in the range of the side surface of the head case.
【００５２】なお、弾性部材はヘッド押圧部２５（記録
ヘッド６）を押圧できれば良いので、コイルバネ２３に
代えて板バネやゴム板等の弾性体を用いても良い。ま
た、本実施形態では、弾性部材支持部２４は、取付ベー
ス５と一体的に成型されたブロック状の部材により構成
してあり、後述するように、第２押圧受機構２２Ｂの押
圧受部材支持部２７としても機能する。Since the elastic member only needs to press the head pressing portion 25 (recording head 6), an elastic body such as a leaf spring or a rubber plate may be used instead of the coil spring 23. Further, in the present embodiment, the elastic member supporting portion 24 is configured by a block-shaped member integrally molded with the mounting base 5, and as described later, the pressing member supporting portion of the second pressing receiving mechanism 22 </ b> B. It also functions as the unit 27.
【００５３】押圧受機構２２は、給紙ローラ１７ａ側
（副走査方向の一端側）に配置した第１押圧受機構２２
Ａと、排紙ローラ１７ｂ側（副走査方向の他端側）に配
置した第２押圧受機構２２Ｂとから構成される。The first pressure receiving mechanism 22 is disposed on the side of the paper feed roller 17a (one end in the sub-scanning direction).
A and a second pressure receiving mechanism 22B disposed on the side of the discharge roller 17b (the other end in the sub-scanning direction).
【００５４】さらに、これらの第１押圧受機構２２Ａ及
び第２押圧受機構２２Ｂは、ヘッドケース６ｂの側面に
当接するリング状の押圧受部材２６と、取付ベース５の
底面から下向きに立設された柱状部材であって、先端を
押圧受部材２６が載置される押圧受部材載置部とした押
圧受部材支持部２７と、この押圧受部材２６の貫通開口
部２８に挿通されて、押圧受部材載置部に設けた雌ねじ
（図示せず）に螺合する止着ねじ２９とを備える。Further, the first pressure receiving mechanism 22A and the second pressure receiving mechanism 22B are provided with a ring-shaped pressure receiving member 26 abutting on the side surface of the head case 6b, and erected downward from the bottom surface of the mounting base 5. A press-receiving member support portion 27 having a distal end serving as a press-receiving member mounting portion on which the press-receiving member 26 is mounted; A fixing screw 29 that is screwed into a female screw (not shown) provided in the receiving member mounting portion.
【００５５】そして、押圧受部材２６とヘッドケース側
面の当接位置は、ヘッド押圧部２５とコイルバネ２３と
の当接位置Ａと同様に、ヘッドケース側面の範囲内に収
めてある。さらに、本実施形態では、第１押圧受機構２
２Ａ及び第２押圧受機構２２Ｂもヘッドケース側面の範
囲内に収まるように配設してある。The contact position between the pressure receiving member 26 and the side surface of the head case is, like the contact position A between the head pressing portion 25 and the coil spring 23, within the range of the side surface of the head case. Further, in the present embodiment, the first pressure receiving mechanism 2
The 2A and the second pressure receiving mechanism 22B are also disposed so as to be within the range of the side surface of the head case.
【００５６】押圧受部材２６は、図４（ｂ）に示すよう
に、厚さ方向に貫通した貫通開口部２８及びヘッドケー
ス側面に当接可能な当接周面２６ａを備えた板状部材で
あり、周縁部分を２箇所直線状に切除して調整治具３１
の係合面２６ｂを形成してある。この係合面２６ｂは、
本願発明における調整治具用の係合部である。ここで、
調整治具３１は、記録ヘッド６の位置を調整するアライ
メント装置に備えられており、水平方向（ノズルプレー
ト６ｄの面方向）に沿って移動可能に構成してある。As shown in FIG. 4B, the pressure receiving member 26 is a plate-shaped member having a through opening 28 penetrating in the thickness direction and a contact peripheral surface 26a capable of contacting the side surface of the head case. There is an adjustment jig 31 by cutting the peripheral portion straight at two places.
Is formed on the engaging surface 26b. This engagement surface 26b is
It is an engagement part for an adjustment jig in the present invention. here,
The adjustment jig 31 is provided in an alignment device that adjusts the position of the recording head 6, and is configured to be movable in the horizontal direction (the surface direction of the nozzle plate 6d).
【００５７】なお、貫通開口部２８は、止着ねじ２９の
軸部２９ａの直径よりも一回り大きい円形状に開口して
ある。従って、押圧受部材２６は、貫通開口部２８の範
囲で移動することができる。そして、この押圧受部材２
６の移動範囲が記録ヘッド６の調整可能範囲となる。The through opening 28 has a circular shape slightly larger than the diameter of the shaft 29a of the fastening screw 29. Therefore, the pressure receiving member 26 can move within the range of the through opening 28. And, this press receiving member 2
The movement range of the recording head 6 becomes the adjustable range of the recording head 6.
【００５８】また、ヘッドケース側面の給紙ローラ１７
ａ側（即ち、副走査方向の一端側）には、ノズル列とは
反対の外側に向けて当接突片３３を突設してある。第１
押圧受機構２２Ａの押圧受部材２６は、給紙ローラ１７
ａ側に配置されて、図４（ａ）中矢印で示すように、当
接突片３３における給紙ローラ１７ａ側の側面３３ａと
ヘッドケース側面の２箇所で当接している。The paper feed roller 17 on the side of the head case
On the a side (ie, one end side in the sub-scanning direction), a contact protruding piece 33 is provided so as to protrude toward the outside opposite to the nozzle row. First
The pressure receiving member 26 of the pressure receiving mechanism 22 </ b> A
As shown by the arrow in FIG. 4A, the contact protruding piece 33 is in contact with the side surface 33a on the sheet feed roller 17a side and the head case side surface.
【００５９】そして、この押圧受部材２６と当接突片３
３の当接位置もまた、押圧受部材２６とヘッドケース側
面の当接位置と同様に、ヘッドケース側面の範囲内に収
めてある。The press receiving member 26 and the contact protrusion 3
The contact position of No. 3 is also included in the range of the side surface of the head case similarly to the contact position of the pressure receiving member 26 and the side surface of the head case.
【００６０】押圧受部材支持部２７は、ノズルプレート
６ｄ側に近付けて押圧受部材２６とヘッドケース側面
（当接突片３３）とを当接させるための部材である。こ
の当接位置をノズルプレート６ｄ側に近付けると、図３
（ｂ）に示すように、取付ベース５の底面から押圧受部
材２６とヘッドケース側面の当接位置までの距離Ｂが長
くなり、ヘッドケース６ｂの首振りを抑制して記録ヘッ
ド６を安定した状態で固定することができる。The pressure receiving member support portion 27 is a member for bringing the pressure receiving member 26 into contact with the side of the head case (the contact protruding piece 33) by approaching the nozzle plate 6d side. When this contact position is brought closer to the nozzle plate 6d side, FIG.
As shown in (b), the distance B from the bottom surface of the mounting base 5 to the contact position between the pressure receiving member 26 and the side surface of the head case becomes longer, and the head case 6b is prevented from swinging, thereby stabilizing the recording head 6. Can be fixed in state.
【００６１】そして、図３（ａ）中の左側に位置する記
録ヘッド６Ａ用の押圧受部材支持部２７は、内部に雌ね
じを形成した筒状のボスであり、取付ベース５と一体に
成型されている（図４（ａ）参照）。The press receiving member supporting portion 27 for the recording head 6A located on the left side in FIG. 3A is a cylindrical boss having an internal thread formed therein, and is molded integrally with the mounting base 5. (See FIG. 4A).
【００６２】また、中央及び右側の記録ヘッド６Ｂ，６
Ｃでは、第１押圧受機構２２Ａの押圧受部材支持部２７
は筒状のボスであり、第２押圧受機構２２Ｂの押圧受部
材支持部２７は上記した弾性部材支持部２４と一体に形
成してある。即ち、弾性部材支持部２４の先端部分に止
着ねじ２９が螺合可能な雌ねじを設けて、押圧部材支持
部を押圧受部材支持部２７として使用している。The recording heads 6B, 6 on the center and right side
In C, the pressure receiving member support portion 27 of the first pressure receiving mechanism 22A
Is a cylindrical boss, and the press receiving member support portion 27 of the second press receiving mechanism 22B is formed integrally with the elastic member support portion 24 described above. That is, a female screw to which a fastening screw 29 can be screwed is provided at the distal end portion of the elastic member supporting portion 24, and the pressing member supporting portion is used as the pressing receiving member supporting portion 27.
【００６３】この構成により、隣り合う記録ヘッド６，
６同士の配設間隔を狭くすることができ、ヘッドユニッ
ト２の主走査方向の長さ、即ち、ヘッドユニット２の幅
を狭くすることができる。そして、ヘッドユニット２の
幅が狭くなると、記録機構１を小さく構成することがで
きるし、記録領域の幅に対して記録機構１の主走査方向
の移動量を短くすることもできる。このため、装置の小
型化が図れると共に記録の高速化を図ることができる。With this configuration, the adjacent recording heads 6,
6 can be narrowed, and the length of the head unit 2 in the main scanning direction, that is, the width of the head unit 2 can be reduced. When the width of the head unit 2 is reduced, the size of the recording mechanism 1 can be reduced, and the amount of movement of the recording mechanism 1 in the main scanning direction with respect to the width of the recording area can be reduced. Therefore, the size of the apparatus can be reduced, and the recording speed can be increased.
【００６４】止着ねじ２９は本願発明における止着手段
として機能し、その軸部２９ａは押圧受部材支持軸とし
ても機能する。そして、止着ねじ２９を締め込んで止着
ねじ２９の頭部と押圧受部材載置部とで押圧受部材２６
を強く挟み込むと、押圧受部材２６はその位置で押圧受
部材支持部２７に固定される。The fixing screw 29 functions as a fixing means in the present invention, and the shaft portion 29a also functions as a pressure receiving member supporting shaft. Then, the fastening screw 29 is tightened, and the head of the fastening screw 29 and the pressing receiving member mounting portion press the pressing receiving member 26.
Is strongly clamped, the pressure receiving member 26 is fixed to the pressure receiving member support 27 at that position.
【００６５】なお、本実施形態では、止着手段と押圧受
部材支持軸とを止着ねじ２９によって一体に構成したも
のを例示したが、止着手段及び押圧受部材支持軸は止着
ねじ２９に限定されない。In this embodiment, the fastening means and the pressing support member supporting shaft are integrally formed by the fastening screw 29. However, the fastening means and the pressing receiving member support shaft are formed by the fastening screw 29. It is not limited to.
【００６６】例えば、押圧受部材支持軸を押圧受部材載
置部から突設した軸により構成し、止着手段を貫通開口
部２８に充填されるＵＶ硬化接着剤等の接着剤により構
成しても良い。For example, the pressure receiving member supporting shaft is constituted by a shaft protruding from the pressure receiving member mounting portion, and the fastening means is constituted by an adhesive such as a UV curing adhesive filled in the through opening 28. Is also good.
【００６７】また、押圧受部材載置部から突設した樹脂
製の軸を止着手段及び押圧受部材支持軸として機能させ
ることもできる。即ち、この軸を熱により溶かして押圧
受部材２６を押圧受部材支持部２７にカシメてもよい。Further, a resin shaft protruding from the pressure receiving member mounting portion may function as the fastening means and the pressure receiving member supporting shaft. That is, the shaft may be melted by heat to caulk the pressing member 26 to the pressing member supporting portion 27.
【００６８】以上のように構成した本実施形態では、位
置調整機構７と記録ヘッド６（ヘッドケース６ｂ）との
当接位置をノズル列を挟んで対向するヘッドケース側面
の範囲内に収めているので、位置調整機構７をヘッドケ
ース６ｂの副走査方向の両端から突出させずにヘッドケ
ース側面の範囲内に収めることができる。仮に、側面の
範囲内に収まらずに位置調整機構７の一部がヘッドケー
ス６ｂの副走査方向の端部から突出したとしても、その
突出量を極く小さく抑えることができる。In this embodiment configured as described above, the contact position between the position adjusting mechanism 7 and the recording head 6 (head case 6b) is accommodated within the range of the side of the head case opposed to the nozzle row. Therefore, the position adjustment mechanism 7 can be accommodated within the range of the side surface of the head case 6b without protruding from both ends of the head case 6b in the sub-scanning direction. Even if part of the position adjustment mechanism 7 protrudes from the end of the head case 6b in the sub-scanning direction without being within the range of the side surface, the amount of protrusion can be suppressed to an extremely small amount.
【００６９】そして、位置調整機構７が障害とならない
ため、一対の紙送りローラ１７（１７ａ，１７ｂ）を記
録ヘッド６に接近させて配置することができる。これに
より、紙送りローラ１７同士の配設間隔Ｃ（図１参照）
を短くすることでき、ローラ間に位置する記録紙（記録
媒体）の平面度を高めることができる。従って、画像の
高画質化を図ることができる。Since the position adjusting mechanism 7 does not become an obstacle, the pair of paper feed rollers 17 (17a, 17b) can be arranged close to the recording head 6. Thus, the spacing C between the paper feed rollers 17 (see FIG. 1).
Can be shortened, and the flatness of the recording paper (recording medium) located between the rollers can be increased. Therefore, it is possible to improve the image quality of the image.
【００７０】また、紙送りローラ１７の配設間隔Ｃを短
くできることから、記録装置の小型化にも寄与する。Further, the arrangement interval C of the paper feed rollers 17 can be shortened, which contributes to downsizing of the recording apparatus.
【００７１】また、押圧機構２１はコイルバネ２３によ
って記録ヘッド６（ヘッドケース６ｂ）を第１押圧受機
構２２Ａの押圧受部材２６に向けて斜め方向に押圧して
おり、押圧受機構２２はコイルバネ２３による押圧力を
押圧受部材２６により受け止めている。このため、記録
ヘッド６は、押圧受部材２６とコイルバネ２３とによっ
て挟まれた状態で保持され、押圧受部材２６をコイルバ
ネ２３の弾性力に抗して移動させることにより、コイル
バネ２３が変形して記録ヘッド６の位置を調整すること
ができる。The pressing mechanism 21 presses the recording head 6 (head case 6b) obliquely toward the pressing receiving member 26 of the first pressing receiving mechanism 22A by the coil spring 23. Is received by the pressure receiving member 26. For this reason, the recording head 6 is held in a state sandwiched between the pressing receiving member 26 and the coil spring 23, and the coil spring 23 is deformed by moving the pressing receiving member 26 against the elastic force of the coil spring 23. The position of the recording head 6 can be adjusted.
【００７２】そして、記録ヘッド６の位置調整時には、
押圧受部材２６のみを移動させれば良いので、調整対象
となる部材を少なくすることができ、記録ヘッド６の位
置調整を容易に行える。When adjusting the position of the recording head 6,
Since only the pressure receiving member 26 needs to be moved, the number of members to be adjusted can be reduced, and the position of the recording head 6 can be easily adjusted.
【００７３】さらに、位置調整機構７を、押圧機構２１
と押圧受機構２２とに分けて構成し、ノズル列を挟んで
対向する一方のヘッドケース側面側に押圧機構２１を、
他方のヘッドケース側面に押圧受機構２２をそれぞれ配
設しているので、記録ヘッド６同士の間の細長い空間で
あっても押圧機構２１と押圧受機構２２とを配置するこ
とが可能である。従って、ヘッドユニット２の幅（主走
査方向の長さ）を狭くすることができ、記録速度の向上
と記録装置の小型化を図ることができる。Further, the position adjusting mechanism 7 is
And a pressure receiving mechanism 22, and the pressing mechanism 21 is provided on the side of one of the head cases opposed to each other across the nozzle row,
Since the pressure receiving mechanism 22 is provided on the other side of the head case, the pressing mechanism 21 and the pressure receiving mechanism 22 can be disposed even in an elongated space between the recording heads 6. Therefore, the width (length in the main scanning direction) of the head unit 2 can be reduced, and the recording speed can be improved and the recording apparatus can be downsized.
【００７４】また、ヘッド押圧部２５に加わった斜め方
向の押圧力は、図４（ａ）中矢印で示すように、反対側
のヘッドケース側面に向かう押圧力（即ち、主走査方向
に沿った第１押圧力）と、給紙ローラ１７ａ側に向かう
押圧力（即ち、副走査方向に沿った第２の押圧力）とに
分解され、第１の押圧力は第１押圧受機構２２Ａの押圧
受部材２６と第２押圧受機構２２Ｂの押圧受部材２６と
によって受け止められ、第２の押圧力は当接突片３３の
側面で第１押圧受機構２２Ａの押圧受部材２６によって
受け止められる。The pressing force applied to the head pressing portion 25 in the oblique direction is, as indicated by the arrow in FIG. 4A, the pressing force toward the opposite side of the head case (that is, along the main scanning direction). The first pressing force is decomposed into a pressing force toward the paper feed roller 17a (that is, a second pressing force along the sub-scanning direction), and the first pressing force is pressed by the first pressing receiving mechanism 22A. The second pressing force is received by the receiving member 26 and the pressing receiving member 26 of the second pressing receiving mechanism 22B, and the second pressing force is received by the pressing receiving member 26 of the first pressing receiving mechanism 22A on the side surface of the contact protruding piece 33.
【００７５】このため、１つのコイルバネ２３で押圧機
構２１を構成することができ、部品点数の削減が図れ、
位置調整機構７を簡素に構成することができる。従っ
て、取付ベース５の限られたスペースを有効に活用する
ことができる。For this reason, the pressing mechanism 21 can be constituted by one coil spring 23, and the number of parts can be reduced.
The position adjusting mechanism 7 can be configured simply. Therefore, the limited space of the mounting base 5 can be effectively used.
【００７６】なお、上記した位置調整機構７は、複数の
記録ヘッド６Ａ，６Ｂ，６Ｃを主走査方向に沿って並べ
た状態で取り付けるヘッドユニット２を例示したが、１
つの記録ヘッド６を取り付けるヘッドユニット２に対し
てもこの位置調整機構７は有用である。即ち、この位置
調整機構７を採用することにより、ヘッドの外寸を大き
くしなくても容易に高精度の位置決めを行うことができ
る。The position adjustment mechanism 7 is exemplified by the head unit 2 in which a plurality of recording heads 6A, 6B, 6C are mounted in a state of being arranged in the main scanning direction.
This position adjusting mechanism 7 is also useful for the head unit 2 to which one recording head 6 is attached. That is, by employing the position adjusting mechanism 7, high-accuracy positioning can be easily performed without increasing the outer size of the head.
【００７７】この場合において、位置決めの指標となる
ターゲットマークを、ノズルプレート６ｄの対角線上の
両隅部にそれぞれ形成すると、ターゲットマーク同士の
間隔を広げることができるので位置精度の向上が図れ
る。In this case, if target marks serving as positioning indices are formed at both corners on the diagonal line of the nozzle plate 6d, the distance between the target marks can be increased, and the position accuracy can be improved.
【００７８】次に、記録ヘッド６のアライメント作業に
ついて説明する。Next, the operation of aligning the recording head 6 will be described.
【００７９】このアライメント作業に先立って、ヘッド
ユニット２を仮組みする（仮組工程）。この仮組み時に
は、位置基準となる記録ヘッド６（第１ヘッド）は固定
しておき、位置調整対象となる記録ヘッド６（第２ヘッ
ド）は完全には固定せずに移動可能な状態とする。具体
的には、第１ヘッドについては止着ねじ２９を完全に締
め込んで固定し、第２ヘッドについては押圧受機構２２
の押圧受部材２６が移動可能な程度に止着ねじ２９を緩
く締めておく。Prior to the alignment work, the head unit 2 is temporarily assembled (temporarily assembling step). In this temporary assembly, the recording head 6 (first head) serving as a position reference is fixed, and the recording head 6 (second head) to be position-adjusted is not completely fixed but is movable. . Specifically, for the first head, the fastening screw 29 is completely tightened and fixed, and for the second head, the pressure receiving mechanism 22 is fixed.
The fastening screw 29 is loosely tightened to such an extent that the pressure receiving member 26 can move.
【００８０】なお、本実施形態では、左右中央に位置す
る記録ヘッド６Ｂを第１ヘッドとし、第１ヘッドの左側
に配置された記録ヘッド６Ａ及び右側に配置された記録
ヘッド６Ｃを第２ヘッドとしている。In this embodiment, the recording head 6B located at the center in the left and right direction is the first head, and the recording head 6A disposed on the left side of the first head and the recording head 6C disposed on the right side are the second head. I have.
【００８１】ヘッドユニット２を仮組みしたならば、こ
のヘッドユニット２をアライメント装置にセットする。
ここで、図４（ｂ）に示すように、アライメント装置の
調整治具３１を第２ヘッド用の押圧受部材２６の係合面
２６ｂに係合させる。この係合状態では、押圧受部材２
６は調整治具３１に２点（２面）で支持され、さらに押
圧機構２１からの押圧力により調整治具３１側に押し付
けられているので、回転が阻止される。When the head unit 2 is temporarily assembled, the head unit 2 is set on the alignment device.
Here, as shown in FIG. 4B, the adjusting jig 31 of the alignment device is engaged with the engaging surface 26b of the press receiving member 26 for the second head. In this engaged state, the pressure receiving member 2
6 is supported by the adjustment jig 31 at two points (two surfaces), and is further pressed against the adjustment jig 31 by the pressing force from the pressing mechanism 21, so that rotation is prevented.
【００８２】ヘッドユニット２をアライメント装置にセ
ットしたならば、ビデオカメラ（撮像手段）により、第
１ヘッドと、調整対象となる第２ヘッドのノズルプレー
トを撮像する（撮像工程）。ビデオカメラによって撮像
された画像は、モニタ（画像表示手段）に表示される。When the head unit 2 is set in the alignment device, the video camera (image pickup means) picks up an image of the first head and the nozzle plate of the second head to be adjusted (image pickup step). The image captured by the video camera is displayed on a monitor (image display means).
【００８３】次に、モニタに表示された画像を見ながら
作業者はアライメント装置の調整治具３１を水平方向
（即ち、ノズルプレート６ｄの面方向）に移動すること
により、コイルバネ２３の押圧力に抗して押圧受部材２
６を移動させる。そして、調整対象となっている第２ヘ
ッドのノズルプレート６ｄのターゲットマークが、第１
ヘッドのターゲットマークと所定の位置関係になるよう
に押圧受部材２６を移動させ、第２ヘッドの位置を決定
する（位置決定工程）。なお、この位置調整は、第１押
圧受機構２２Ａの押圧受部材２６と第２押圧受機構２２
Ｂの押圧受部材２６とに対して行う。Next, the operator moves the adjustment jig 31 of the alignment device in the horizontal direction (ie, in the surface direction of the nozzle plate 6d) while watching the image displayed on the monitor, so that the pressing force of the coil spring 23 is reduced. Press receiving member 2 against
Move 6. The target mark of the nozzle plate 6d of the second head to be adjusted is the first mark.
The pressure receiving member 26 is moved so as to have a predetermined positional relationship with the target mark of the head, and the position of the second head is determined (position determining step). This position adjustment is performed by the pressing member 26 of the first pressing member 22A and the second pressing member 22A.
B and the pressing member 26 of FIG.
【００８４】そして、この位置決定工程では、コイルバ
ネ２３（弾性部材）が第２ヘッド（記録ヘッド６Ａ，６
Ｃ）を押圧し、このコイルバネ２３と押圧受部材２６に
より挟んだ状態で第２ヘッドを支持しているので、押圧
受部材２６を移動させるだけで第２ヘッドの位置を調整
することができる。In this position determining step, the coil spring 23 (elastic member) is moved by the second head (recording heads 6A, 6A).
C) is pressed, and the second head is supported in a state sandwiched between the coil spring 23 and the pressure receiving member 26. Therefore, the position of the second head can be adjusted only by moving the pressure receiving member 26.
【００８５】第２ヘッドの位置を決定したならば、調整
治具３１を固定して決定した状態を維持しつつ、止着ね
じ２９を締め込んで押圧受部材２６を押圧受部材支持部
２７に固定し、第２ヘッドの位置を固定する（位置固定
工程）。そして、この位置固定工程では、止着ねじ２９
を締め込むだけで押圧受部材２６を所定位置に固定する
ことができるので、作業を容易且つ迅速に行うことがで
きる。When the position of the second head is determined, the fixing screw 29 is tightened and the pressure receiving member 26 is screwed to the pressure receiving member support portion 27 while maintaining the state determined by fixing the adjustment jig 31. Then, the position of the second head is fixed (position fixing step). In this position fixing step, the fastening screws 29
Can be fixed to the predetermined position only by tightening the, the work can be performed easily and quickly.
【００８６】なお、この位置決定工程では、調整治具３
１を押圧受部材２６の係合面２６ｂに係合させたまま止
着ねじ２９を締め込んでいるので、押圧受部材２６の共
回りを防止することができ、決定した第２ヘッドの位置
をずらすことなく固定することができる。In this position determining step, the adjusting jig 3
Since the fastening screw 29 is tightened while keeping the engagement of the second head 1 with the engagement surface 26b of the pressure receiving member 26, the co-rotation of the pressure receiving member 26 can be prevented, and the determined position of the second head can be adjusted. It can be fixed without shifting.
【００８７】同様に、止着手段としてＵＶ硬化接着剤等
の接着剤を用い、この接着剤を押圧受部材２６の貫通開
口部２８に充填して押圧受部材２６を固定するようにし
た場合においても、調整治具３１を押圧受部材２６の係
合面２６ｂに係合させたまま接着剤を硬化させると、硬
化に伴って接着剤が収縮しても押圧受部材２６が動くの
を防止することができる。Similarly, in the case where an adhesive such as a UV curing adhesive is used as the fastening means, and this adhesive is filled in the through opening 28 of the pressure receiving member 26 to fix the pressure receiving member 26, Also, if the adhesive is cured while the adjustment jig 31 is engaged with the engagement surface 26b of the pressure receiving member 26, the pressure receiving member 26 is prevented from moving even if the adhesive contracts with the curing. be able to.
【００８８】このアライメント作業では、ビデオカメラ
によって撮像された画像に基づいて位置調整を行ってい
るので、記録ヘッド６の位置調整をより高精度に行うこ
とができる。In this alignment work, since the position adjustment is performed based on the image taken by the video camera, the position adjustment of the recording head 6 can be performed with higher accuracy.
【００８９】また、押圧受部材２６を調整治具３１によ
り移動するだけで、記録ヘッド６の位置を調整すること
ができるので、調整作業が容易であり、尚且つ、高精度
の位置調整を実現することができる。Further, the position of the recording head 6 can be adjusted only by moving the pressure receiving member 26 by the adjustment jig 31, so that the adjusting operation is easy and the position adjustment with high accuracy is realized. can do.
【００９０】ところで、第１ヘッドは、任意の記録ヘッ
ド６Ａ，６Ｂ，６Ｃに定めることができる。そして、本
実施形態のように、主走査方向の中央部分に配置された
記録ヘッド６Ｂを第１ヘッドに定めると、第１ヘッド
と、この第１ヘッドから最も離れた位置の第２ヘッド、
即ち、主走査方向の端部に位置する記録ヘッド６Ａ，６
Ｃまでの距離を短くすることができる。これにより、画
像上においてもこれらの第１ヘッドと第２ヘッドとを近
付けることができる。このため、記録ヘッド６の位置調
整が容易になり、アライメント作業をより高精度に行う
ことができる。Incidentally, the first head can be set to any of the recording heads 6A, 6B and 6C. Then, as in the present embodiment, when the recording head 6B arranged at the center in the main scanning direction is determined as the first head, the first head and the second head at the position farthest from the first head,
That is, the recording heads 6A, 6 located at the ends in the main scanning direction
The distance to C can be shortened. Thus, the first head and the second head can be brought closer to each other even on an image. Therefore, the position of the recording head 6 can be easily adjusted, and the alignment operation can be performed with higher accuracy.
【００９１】ところで、上記の第１実施形態で説明した
記録ヘッド６の位置調整機構７は、ヘッドユニット２が
小型化できる点、一対の紙送りローラ１７，１７同士の
間隔を狭くすることができる点から好適である。しかし
ながら、上記したアライメント作業に適する取付構造
は、第１実施形態の取付構造に限定されるものではなく
い。The position adjusting mechanism 7 of the recording head 6 described in the first embodiment can reduce the size of the head unit 2 and can narrow the interval between the pair of paper feed rollers 17. It is preferable from the point. However, the mounting structure suitable for the above-mentioned alignment work is not limited to the mounting structure of the first embodiment.
【００９２】以下、記録ヘッドに当接することにより記
録ヘッドの位置を調整可能な他の位置調整機構７の構成
について説明する。Hereinafter, the configuration of another position adjusting mechanism 7 that can adjust the position of the recording head by contacting the recording head will be described.
【００９３】図５（ａ）に示す実施形態は、記録ヘッド
６の各側面に、押圧受機構３５…を配設したものであ
る。即ち、ノズル列を挟んで対向する側面には、２つの
押圧受機構３５，３５をそれぞれ配設し、また、一対の
紙送りローラ１７に面する側面には１つの押圧受機構３
５をそれぞれ配設する。なお、この実施形態における押
圧受機構３５は、第１実施形態の押圧受機構２２と同様
の構成であるので、その説明は省略する。In the embodiment shown in FIG. 5A, press receiving mechanisms 35 are arranged on each side surface of the recording head 6. That is, two press receiving mechanisms 35 are provided on the side facing each other across the nozzle row, and one press receiving mechanism 3 is provided on the side facing the pair of paper feed rollers 17.
5 are arranged respectively. Note that the press receiving mechanism 35 of this embodiment has the same configuration as the press receiving mechanism 22 of the first embodiment, and a description thereof will be omitted.
【００９４】また、図５（ｂ）に示す実施形態は、上記
した第１実施形態における押圧機構２１に代えて、ノズ
ル列を挟んで対向する一方のヘッドケース側面に、この
ヘッドケース側面を他方のヘッドケース側面側に押圧す
る第１押圧機構３６ａを配設し、排紙ローラ１７ｂ側の
鍔部６ａには、この鍔部６ａを給紙ローラ１７ａ側に押
圧する第２押圧機構３６ｂを配設する。In the embodiment shown in FIG. 5B, instead of the pressing mechanism 21 in the above-described first embodiment, one side of the head case facing the nozzle row is provided, and the side of the head case is connected to the other side. A first pressing mechanism 36a for pressing the side of the head case is provided, and a second pressing mechanism 36b for pressing the flange 6a toward the paper feed roller 17a is provided on the flange 6a on the paper discharge roller 17b side. Set up.
【００９５】また、図５（ｃ）に示す実施形態では、図
５（ｂ）の実施形態における第１押圧受機構２２Ａに代
えて給紙ローラ１７ａ側の鍔部６ａ側に第３押圧受機構
３７を設け、当接突片３３に代えて鍔部６ａには、給紙
ローラ１７ａ側の端部から排紙ローラ１７ｂ側に向けて
Ｖ字状の切り欠き部３８を形成し、第３押圧受機構２２
をこの切り欠き部３８に配設する。In the embodiment shown in FIG. 5 (c), a third press receiving mechanism is provided on the flange 6a side of the paper feed roller 17a instead of the first press receiving mechanism 22A in the embodiment of FIG. 5 (b). 37, a V-shaped notch 38 is formed in the flange 6a in place of the contact protruding piece 33 from the end on the paper feed roller 17a side toward the paper discharge roller 17b, and the third pressing is performed. Receiving mechanism 22
Is provided in the cutout portion 38.
【００９６】また、図５（ｄ）に示す実施形態では、図
５（ｂ）の実施形態における当接突片３３に代えて給紙
ローラ１７ａ側の鍔部６ａ側に第３押圧受機構３７を設
け、この第３押圧受機構３７を給紙ローラ１７ａ側の鍔
部６ａに当接させている。In the embodiment shown in FIG. 5D, a third pressing receiving mechanism 37 is provided on the flange 6a side of the paper feed roller 17a instead of the contact protruding piece 33 in the embodiment of FIG. 5B. And the third pressure receiving mechanism 37 is brought into contact with the flange 6a on the side of the paper feed roller 17a.
【００９７】これらの各実施形態においても、調整治具
３１（図４（ｂ）参照）によって押圧受部材をノズルプ
レート６ｄの面方向に移動させることで、記録ヘッド６
の位置調整を行うことができる。従って、押圧受部材を
移動させるだけであるので調整作業が容易であり、尚且
つ、記録ヘッド６を極く微少な単位で移動させることで
きるので高精度の位置調整を実現することができる。Also in each of these embodiments, the recording head 6 is moved by moving the pressure receiving member in the surface direction of the nozzle plate 6d by the adjustment jig 31 (see FIG. 4B).
Can be adjusted. Therefore, the adjustment operation is easy because only the pressure receiving member is moved, and the recording head 6 can be moved in a very small unit, so that highly accurate position adjustment can be realized.
【００９８】なお、上記した実施形態では、３つの記録
ヘッド６…を取付ベース５に取り付けたヘッドユニット
を例示したが、記録ヘッド６の数は４つ以上でも良い。In the above-described embodiment, a head unit in which three recording heads 6 are mounted on the mounting base 5 is exemplified. However, the number of recording heads 6 may be four or more.
【００９９】また、圧力発生素子にＰＺＴを用いた記録
ヘッド６を例示したが、圧力発生素子に発熱素子を用い
たいわゆるバブルジェットヘッドにも本発明を適用する
ことができる。Although the recording head 6 using PZT as the pressure generating element has been illustrated, the present invention can be applied to a so-called bubble jet head using a heating element as the pressure generating element.
【０１００】[0100]
【発明の効果】以上説明したように本発明は以下の効果
を奏する。As described above, the present invention has the following effects.
【０１０１】請求項１に記載の発明によれば、記録ヘッ
ドに当接することにより記録ヘッドの位置を調整する位
置調整機構を設けたので、位置調整機構の当接状態を変
えることにより、記録ヘッドの位置を極く微少な単位で
移動させることできるので高精度の位置調整を実現する
ことができる。従って、記録画像の高画質化に寄与す
る。According to the first aspect of the present invention, since the position adjusting mechanism for adjusting the position of the recording head by contacting the recording head is provided, the recording head is changed by changing the contact state of the position adjusting mechanism. Can be moved in extremely small units, so that highly accurate position adjustment can be realized. Therefore, it contributes to improving the quality of the recorded image.
【０１０２】請求項２に記載の発明によれば、位置調整
機構と記録ヘッドとの当接位置を、ノズル列を挟んで対
向するヘッドケース側面の範囲内に収めたので、位置調
整機構をヘッドケース側面の端から突出させずにヘッド
ケース側面の範囲内に収めることができる。仮に、側面
の範囲内に収まらずに位置調整機構の一部がヘッドケー
ス側面の端から突出したとしても、その突出量を極く小
さく抑えることができる。According to the second aspect of the present invention, the contact position between the position adjusting mechanism and the recording head is set within the range of the side of the head case opposed to the nozzle row. It is possible to fit within the range of the side of the head case without projecting from the end of the side of the case. Even if a part of the position adjusting mechanism protrudes from the end of the side surface of the head case without being within the range of the side surface, the amount of protrusion can be suppressed to an extremely small value.
【０１０３】そして、位置調整機構が障害とならないた
め、一対の紙送りローラをヘッドケースに接近させて配
置することができる。これにより、紙送りローラ同士の
配設間隔を短くすることでき、ローラ間に位置する記録
媒体の平面度を高めることができる。従って、画像の高
画質化を図ることができる。Since the position adjusting mechanism does not become an obstacle, the pair of paper feed rollers can be arranged close to the head case. Thus, the interval between the paper feed rollers can be reduced, and the flatness of the recording medium located between the rollers can be increased. Therefore, it is possible to improve the image quality of the image.
【０１０４】また、紙送りローラの配設間隔を短くでき
ることから、記録装置の小型化にも寄与する。Further, since the interval between the paper feed rollers can be shortened, it contributes to downsizing of the recording apparatus.
【０１０５】さらに、ヘッドケースに設けた鍔部には位
置調整機構を設ける必要がないので、鍔部の肉厚を薄く
することができ、鍔部からノズルプレートまでの記録ヘ
ッドの高さを低く抑えることができる。この点でも、記
録ヘッドの小型に寄与する。Further, since there is no need to provide a position adjusting mechanism for the flange provided on the head case, the thickness of the flange can be reduced, and the height of the recording head from the flange to the nozzle plate can be reduced. Can be suppressed. This also contributes to the downsizing of the recording head.
【０１０６】また、記録ヘッドの高さを低く抑えること
ができると、その分、記録ヘッド内におけるインク流路
を短くすることができ、インクの圧力損失を少なくする
ことができる。さらに、記録ヘッドの電気配線に使用す
るフレキシブルテープを短くすることもできる。このフ
レキシブルテープは高価であるため、テープの必要長さ
を短くできることにより、記録ヘッドのコストダウンも
図れる。If the height of the recording head can be reduced, the ink flow path in the recording head can be shortened accordingly, and the pressure loss of the ink can be reduced. Furthermore, the flexible tape used for the electrical wiring of the recording head can be shortened. Since this flexible tape is expensive, the required length of the tape can be shortened, so that the cost of the recording head can be reduced.
【０１０７】請求項３及び請求項４に記載の発明によれ
ば、一方のヘッドケース側面側に配設される押圧機構は
弾性部材によって記録ヘッドの側面を押圧し、他方のヘ
ッドケース側面側に配設される押圧受機構は押圧機構か
らの押圧力を記録ヘッドの側面に当接した押圧受部材に
よって受け止めるので、記録ヘッドは、押圧受部材と弾
性部材とによって挟まれた状態で保持される。According to the third and fourth aspects of the present invention, the pressing mechanism provided on one side of the head case presses the side of the recording head by the elastic member, and the pressing mechanism is provided on the other side of the head case. Since the pressure receiving mechanism provided receives the pressing force from the pressing mechanism by the pressure receiving member abutting on the side surface of the recording head, the recording head is held in a state sandwiched between the pressure receiving member and the elastic member. .
【０１０８】このため、押圧受部材を弾性部材の弾性力
に抗して移動させることにより、弾性部材が変形し記録
ヘッドの位置を調整することができる。For this reason, by moving the pressure receiving member against the elastic force of the elastic member, the elastic member is deformed and the position of the recording head can be adjusted.
【０１０９】そして、記録ヘッドの位置調整時には、押
圧受部材のみを移動させれば良く、調整対象となる部材
を少なくすることができる。従って、記録ヘッドの位置
調整を容易に行うことができる。When adjusting the position of the recording head, only the pressure receiving member needs to be moved, and the number of members to be adjusted can be reduced. Accordingly, the position of the recording head can be easily adjusted.
【０１１０】請求項５に記載の発明によれば、止着ねじ
の軸部を押圧受部材支持軸として用いているので、止着
手段と押圧受部材支持部とを一体に構成することがで
き、位置調整機構における部品点数の削減が図れる。According to the fifth aspect of the present invention, since the shaft of the fastening screw is used as the support shaft for the pressure receiving member, the fastening means and the support portion for the pressure receiving member can be integrally formed. In addition, the number of components in the position adjusting mechanism can be reduced.
【０１１１】また、止着ねじを締め込むだけで押圧受部
材を所定位置に固定することができるので、記録ヘッド
の位置調整作業が容易になり、作業を迅速に行うことが
できる。Further, since the pressure receiving member can be fixed at a predetermined position only by tightening the fastening screw, the work of adjusting the position of the recording head becomes easy and the work can be performed quickly.
【０１１２】請求項６に記載の発明によれば、押圧受部
材に、弾性部材の押圧力に抗して押圧受部材を移動可能
な調整治具用の係合部を形成したので、押圧受部材の係
合部には調整治具が係合し、この係合状態で調整治具を
操作することにより記録ヘッドの位置を容易に調整する
ことができる。According to the sixth aspect of the present invention, since the engaging portion for the adjusting jig capable of moving the press receiving member against the pressing force of the elastic member is formed on the press receiving member, An adjusting jig is engaged with the engaging portion of the member, and the position of the recording head can be easily adjusted by operating the adjusting jig in this engaged state.
【０１１３】さらに、止着手段により押圧受部材を固定
する際には、押圧受部材の係合部に調整治具を係合させ
た状態で止着を行うことにより、止着作業に伴う押圧受
部材の位置ずれを防止することができる。Further, when the pressing member is fixed by the fixing means, the fixing is carried out in a state where the adjusting jig is engaged with the engaging portion of the pressing member, so that the pressing force accompanying the fixing operation can be improved. The displacement of the receiving member can be prevented.
【０１１４】例えば、止着手段として止着ねじを用いた
場合には、止着ねじの締め付けによって押圧受部材が共
回りしてしまうのを防止することができるし、止着手段
として接着剤を用いた場合には、硬化時に生じる接着剤
の収縮に伴う押圧受部材の移動を防止することができ
る。For example, when a fastening screw is used as the fastening means, it is possible to prevent the pressure receiving members from rotating together due to the fastening of the fastening screw, and use an adhesive as the fastening means. When used, it is possible to prevent the movement of the pressure receiving member due to the contraction of the adhesive that occurs during curing.
【０１１５】請求項７に記載の発明によれば、ヘッド押
圧部に加わった押圧力は、ノズル列を挟んで反対側のヘ
ッドケース側面に向かう主走査方向に沿った第１の押圧
力と、副走査方向の一端側に向かう副走査方向に沿った
第２の押圧力とに分解し、第１の押圧力はヘッドケース
側面で第１押圧受機構の押圧受部材と第２押圧受機構の
押圧受部材とによって受け止められ、第２の押圧力は当
接突片の側面で第１押圧受機構の押圧受部材によって受
け止められる。According to the seventh aspect of the present invention, the pressing force applied to the head pressing portion is the first pressing force along the main scanning direction toward the side of the head case opposite to the nozzle row. It is decomposed into a second pressing force along the sub-scanning direction toward one end in the sub-scanning direction, and the first pressing force is applied to the pressing member of the first pressing receiving mechanism and the second pressing receiving mechanism on the side of the head case. The second pressing force is received by the pressure receiving member of the first pressure receiving mechanism on the side surface of the contact protruding piece.
【０１１６】このため、１つの弾性部材で押圧機構を構
成することができ、部品点数の削減が図れ、位置調整機
構構成を簡素化することができる。従って、限られたス
ペースを有効に活用することができる。Therefore, the pressing mechanism can be constituted by one elastic member, the number of parts can be reduced, and the structure of the position adjusting mechanism can be simplified. Therefore, the limited space can be effectively used.
【０１１７】請求項８に記載の発明によれば、前記位置
調整機構を主走査方向に沿って複数並べて配設し、複数
個の記録ヘッドを主走査方向に沿って並べて配設したの
で、複数の記録ヘッドを限られたスペースに効率良く配
設することができる。According to the present invention, a plurality of the position adjusting mechanisms are arranged and arranged in the main scanning direction, and a plurality of recording heads are arranged and arranged in the main scanning direction. Can be efficiently arranged in a limited space.
【０１１８】請求項９に記載の発明によれば、押圧機構
の弾性部材支持部と第２押圧受機構の押圧受部材支持部
とが同一の部材により兼用されるので、部品点数が削減
されその分の取付スペースを減らすことができる。この
ため、主走査方向の間隔を狭めた状態で複数の記録ヘッ
ドを取り付けることができる。According to the ninth aspect of the present invention, the elastic member supporting portion of the pressing mechanism and the pressing receiving member supporting portion of the second pressing receiving mechanism are shared by the same member, so that the number of parts is reduced. Installation space can be reduced. For this reason, a plurality of recording heads can be mounted with the interval in the main scanning direction narrowed.
【０１１９】請求項１０に記載の発明によれば、位置基
準となる第１記録ヘッドのノズル列と仮組状態にある第
２記録ヘッドのノズル列を撮像する撮像工程と、この撮
像工程で撮像された画像に基づいて、第２記録ヘッドの
押圧受部材をアライメント装置の調整治具により移動し
て第１記録ヘッドのノズル列に対して第２記録ヘッドの
ノズル列の位置を所定の位置関係に合わせ、第２記録ヘ
ッドの位置を決定する位置決定工程と、位置決定工程で
決定された位置で押圧受部材を止着手段により固定し、
第２記録ヘッドを固定する位置固定工程とを経て記録ヘ
ッドを固定するように構成したので、撮像された画像に
基づいて位置調整を行っているので、記録ヘッドの位置
調整をより高精度に行うことができる。また、記録ヘッ
ドや取付ベース等の部材の寸法精度による位置決めより
も、遙かに高い精度で記録ヘッドの位置を定めることが
できる。According to the tenth aspect of the present invention, an imaging step of imaging the nozzle array of the first recording head serving as a position reference and the nozzle array of the second recording head in a tentatively assembled state, and imaging in this imaging step On the basis of the image obtained, the pressure receiving member of the second recording head is moved by the adjusting jig of the alignment device so that the position of the nozzle row of the second recording head with respect to the nozzle row of the first recording head has a predetermined positional relationship. A position determining step of determining the position of the second recording head, and fixing the pressing member at the position determined in the position determining step by fastening means;
Since the recording head is fixed through the position fixing step of fixing the second recording head, the position adjustment is performed based on the captured image, so the position adjustment of the recording head is performed with higher accuracy. be able to. Further, the position of the recording head can be determined with much higher accuracy than the positioning based on the dimensional accuracy of members such as the recording head and the mounting base.
【０１２０】また、押圧受部材を調整治具により移動す
るだけで、記録ヘッドの位置を調整することができるの
で、調整作業が容易であり、尚且つ、高精度の位置調整
を実現することができる。Further, since the position of the recording head can be adjusted only by moving the pressure receiving member by the adjusting jig, the adjusting operation is easy, and the position can be adjusted with high accuracy. it can.
【図１】インクジェット式記録装置の記録機構を主走査
方向から見た概略構成図である。FIG. 1 is a schematic configuration diagram of a recording mechanism of an ink jet recording apparatus viewed from a main scanning direction.
【図２】ヘッドユニットの平面図である。FIG. 2 is a plan view of a head unit.
【図３】（ａ）はヘッドユニットの底面図、（ｂ）は副
走査方向側から見たヘッドユニットの説明図である。3A is a bottom view of the head unit, and FIG. 3B is an explanatory diagram of the head unit viewed from a sub-scanning direction side.
【図４】（ａ）は記録ヘッド及び位置調整機構を拡大し
て示した図、（ｂ）は押圧受部材と調整治具の係合状態
を説明する図である。FIG. 4A is an enlarged view of a recording head and a position adjusting mechanism, and FIG. 4B is a view for explaining an engagement state between a press receiving member and an adjusting jig.
【図５】他の位置調整機構の構成を説明する図であり、
（ａ）は記録ヘッドの各側面に押圧受機構を配設した実
施形態を示し、（ｂ）は押圧機構を第１押圧機構と第２
押圧機構とに分けて構成した実施形態を示し、（ｃ）は
鍔部に設けた切り欠き部に第３押圧受機構を配設した実
施形態を示し、（ｄ）は２つの押圧機構と３つの押圧受
機構とによって構成した実施形態をそれぞれ示す。FIG. 5 is a diagram illustrating a configuration of another position adjustment mechanism.
(A) shows an embodiment in which a press receiving mechanism is provided on each side surface of the recording head, and (b) shows a press mechanism including a first press mechanism and a second press mechanism.
(C) shows an embodiment in which a third press receiving mechanism is provided in a notch provided in a flange, and (d) shows an embodiment in which a third press receiving mechanism is provided. An embodiment constituted by two pressure receiving mechanisms is shown.
１ 記録機構 ２ ヘッドユニット ３ 案内軸 ４ キャリッジ ５ 取付ベース ６ 記録ヘッド ６ｃ ノズル開口部 ６ｄ ノズルプレート ７ 位置調整機構 １１ インク供給路形成部材 １２ フィルタユニット １３ インク導入針 １４ プリント配線基板 １５ ドライバＩＣ １６ 板バネ １７ 紙送りローラ １７ａ 給紙ローラ １７ｂ 排紙ローラ ２１ 押圧機構 ２２ 押圧受機構 ２２Ａ 第１押圧受機構 ２２Ｂ 第２押圧受機構 ２３ コイルバネ ２４ 弾性部材支持部 ２５ ヘッド押圧部 ２６ 押圧受部材 ２７ 押圧受部材支持部 ２８ 押圧受部材の貫通開口部 ３１ 調整治具 ３３ 当接突片 ３５ 押圧受機構 ３６ａ 第１押圧機構 ３６ｂ 第２押圧機構 ３７ 第３押圧受機構 ３８ 切り欠き部 Reference Signs List 1 recording mechanism 2 head unit 3 guide shaft 4 carriage 5 mounting base 6 recording head 6c nozzle opening 6d nozzle plate 7 position adjustment mechanism 11 ink supply path forming member 12 filter unit 13 ink introduction needle 14 printed wiring board 15 driver IC 16 plate Spring 17 Paper feed roller 17a Paper feed roller 17b Discharge roller 21 Pressing mechanism 22 Press receiving mechanism 22A First press receiving mechanism 22B Second press receiving mechanism 23 Coil spring 24 Elastic member supporting section 25 Head pressing section 26 Press receiving member 27 Press receiving Member support portion 28 Through opening of pressure receiving member 31 Adjusting jig 33 Contact protruding piece 35 Press receiving mechanism 36a First pressing mechanism 36b Second pressing mechanism 37 Third pressing receiving mechanism 38 Notch
Claims (10)
ル開口部を有する記録ヘッドを、取付ベースに固定する
インクジェット式記録ヘッドの取付構造において、 前記取付ベースに、記録ヘッドに当接することにより記
録ヘッドの位置を調整する位置調整機構を取り付けたこ
とを特徴とするインクジェット式記録ヘッドの取付構
造。1. An ink jet type recording head mounting structure for fixing a recording head having a large number of nozzle openings formed in a sub-scanning direction to a mounting base, wherein the recording head is brought into contact with the mounting base. A mounting structure for an ink jet recording head, comprising a position adjusting mechanism for adjusting the position of the recording head.
位置を、ノズル列を挟んで対向するヘッドケース側面の
範囲内に収めたことを特徴とする請求項１に記載のイン
クジェット式記録ヘッドの取付構造。2. The ink jet recording head according to claim 1, wherein a contact position between the position adjusting mechanism and the recording head is set within a range of a side surface of a head case opposed to the nozzle row. Mounting structure.
記録ヘッドを押圧する押圧機構と、所定の調整範囲で移
動可能に取り付けられて押圧機構からの押圧力を受ける
押圧受部材を備えた押圧受機構とから構成し、 押圧機構をノズル列を挟んで対向する一方のヘッドケー
ス側面側に、押圧受機構を他方のヘッドケース側面側に
それぞれ配設したことを特徴とする請求項１又は請求項
２に記載のインクジェット式記録ヘッドの取付構造。3. A pressure receiving device comprising: a pressing mechanism for pressing the recording head by an elastic member; and a pressing receiving member movably mounted within a predetermined adjustment range and receiving a pressing force from the pressing mechanism. And a pressure receiving mechanism is provided on one side of the side of the head case opposite to the nozzle row, and a pressure receiving mechanism is provided on the side of the other side of the head case. 3. The mounting structure of the ink jet recording head according to 2.
に配置した第１押圧受機構と、副走査方向の他端側に配
置した第２押圧受機構とから構成し、 これらの第１押圧受機構及び第２押圧受機構を、 厚さ方向に貫通した貫通開口部及び記録ヘッドに当接可
能な当接周面を備えた板状の押圧受部材と、 取付ベースの表面から立設され、押圧受部材が載置され
る押圧受部材載置部を先端に設けた押圧受部材支持部
と、 押圧受部材載置部に設けられて押圧受部材の貫通開口部
が挿入され、押圧受部材載置部に載置された押圧受部材
を所定の調整範囲で移動可能に支持する押圧受部材支持
軸と、 押圧受部材をヘッド位置調整後の状態で固定する止着手
段とから構成したことを特徴とする請求項３に記載のイ
ンクジェット式記録ヘッドの取付構造。4. The pressure receiving mechanism comprises: a first pressure receiving mechanism disposed at one end in the sub-scanning direction; and a second pressure receiving mechanism disposed at the other end in the sub-scanning direction. A first pressure receiving mechanism, a second pressure receiving mechanism, a plate-shaped pressure receiving member having a through opening penetrating in a thickness direction and a contact peripheral surface capable of contacting a recording head; A pressure receiving member support portion provided at the tip thereof with a pressure receiving member mounting portion on which the pressure receiving member is mounted, and a through-opening of the pressure receiving member provided in the pressure receiving member mounting portion is inserted; A pressure receiving member supporting shaft movably supporting the pressure receiving member mounted on the pressure receiving member mounting portion within a predetermined adjustment range; and a fastening means for fixing the pressure receiving member in a state after the head position adjustment. 4. The mounting structure for an ink jet recording head according to claim 3, wherein the mounting structure is constituted.
により構成し、尚且つ、押圧受部材支持部には止着ねじ
が螺合可能な雌ねじを設け、 止着ねじを雌ねじに螺合して、止着ねじの軸部を押圧受
部材支持軸としたことを特徴とする請求項４に記載のイ
ンクジェット式記録ヘッドの取付構造。5. The fastening means is constituted by a fastening screw composed of a male screw, and a female screw to which the fastening screw can be screwed is provided on the pressing receiving member supporting portion, and the fastening screw is screwed to the female screw. 5. The mounting structure for an ink jet recording head according to claim 4, wherein a shaft portion of the fastening screw is used as a support shaft for the pressure receiving member.
抗して押圧受部材を移動可能な調整治具用の係合部を形
成したことを特徴とする請求項４又は請求項５に記載の
インクジェット式記録ヘッドの取付構造。6. The pressure receiving member is provided with an engaging portion for an adjustment jig capable of moving the pressure receiving member against the pressing force of the elastic member. 3. The mounting structure of an ink jet recording head according to item 1.
押圧受機構の押圧受部材が当接可能な当接突片を外側に
突設して、この当接突片における副走査方向の一端側の
側面とヘッドケース側面とに上記押圧受部材を当接さ
せ、 一方のヘッドケース側面における副走査方向の他端側に
は、弾性部材と当接するヘッド押圧部を外側に突設し、 弾性部材によってヘッド押圧部を第１押圧受機構の押圧
受部材に向けて斜め方向に押圧するように構成したこと
を特徴とする請求項４から請求項６の何れかに記載のイ
ンクジェット式記録ヘッドの取付構造。7. A first side face of the other head case,
An abutting protruding piece to which the pressing receiving member of the pressing receiving mechanism can abut is protruded outward, and the pressing receiving member is applied to one side of the abutting protruding part in the sub-scanning direction and the side of the head case. At the other end in the sub-scanning direction on one of the side surfaces of the head case, a head pressing portion that comes into contact with the elastic member protrudes outward, and the elastic member causes the head pressing portion to be pressed by the pressing member of the first pressing receiving mechanism. The mounting structure for an ink jet type recording head according to any one of claims 4 to 6, wherein the mounting structure is configured to be pressed obliquely toward the ink jet recording head.
複数並べて配設し、複数個の記録ヘッドを主走査方向に
沿って取り付けたことを特徴とする請求項１から請求項
７の何れかに記載のインクジェット式記録ヘッドの取付
構造。8. The apparatus according to claim 1, wherein a plurality of the position adjusting mechanisms are arranged in the main scanning direction, and a plurality of recording heads are mounted in the main scanning direction. A mounting structure for an ink jet recording head according to any one of the above.
対向する一方のヘッドケース側面側に配設され、弾性部
材支持部を備える押圧機構と、他方のヘッドケース側面
側に配設され、押圧受部材支持部を備える押圧受機構と
から構成し、 この押圧受機構を、副走査方向の一端側に配置した第１
押圧受機構と副走査方向の他端側に配置した第２押圧受
機構とから構成し、 押圧機構を副走査方向の他端側に配置して、この押圧機
構の弾性部材支持部を、隣り合う位置調整機構における
第２押圧受機構の押圧受部材支持部としたことを特徴と
する請求項８に記載のインクジェット式記録ヘッドの取
付構造。9. A pressure mechanism provided on one side of a head case, which is opposed to the head case across a nozzle row, and provided with an elastic member supporting portion, and the position adjustment mechanism is provided on a side of the other head case, And a pressure receiving mechanism having a pressure receiving member support portion, wherein the pressure receiving mechanism is disposed at one end in the sub-scanning direction.
A pressure receiving mechanism and a second pressure receiving mechanism disposed at the other end in the sub-scanning direction. The pressing mechanism is disposed at the other end in the sub-scanning direction. 9. The mounting structure for an ink jet recording head according to claim 8, wherein the press receiving member support portion of the second press receiving mechanism in the matching position adjusting mechanism is used.
ル列と仮組状態にある第２記録ヘッドのノズル列を撮像
する撮像工程と、 この撮像工程で撮像された画像に基づいて、第２記録ヘ
ッドの押圧受部材をアライメント装置の調整治具により
移動して第１記録ヘッドのノズル列に対して第２記録ヘ
ッドのノズル列の位置を所定の位置関係に合わせ、第２
記録ヘッドの位置を決定する位置決定工程と、 位置決定工程で決定された位置で押圧受部材を止着手段
により固定し、第２記録ヘッドを固定する位置固定工程
とを経ることを特徴とするインクジェット式記録ヘッド
の固定方法。10. An imaging step of imaging a nozzle array of a first recording head serving as a position reference and a nozzle array of a second recording head in a tentatively assembled state, and a second imaging step based on an image captured in the imaging step. The pressure receiving member of the recording head is moved by an adjusting jig of the alignment device to adjust the position of the nozzle row of the second recording head with respect to the nozzle row of the first recording head in a predetermined positional relationship, and
A position determining step of determining the position of the recording head; and a position fixing step of fixing the press receiving member at the position determined in the position determining step by fastening means and fixing the second recording head. A method for fixing an ink jet recording head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36749198A JP2000190465A (en) | 1998-12-24 | 1998-12-24 | Mounting structure and fixing method of ink jet type recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36749198A JP2000190465A (en) | 1998-12-24 | 1998-12-24 | Mounting structure and fixing method of ink jet type recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000190465A true JP2000190465A (en) | 2000-07-11 |
Family
ID=18489446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36749198A Withdrawn JP2000190465A (en) | 1998-12-24 | 1998-12-24 | Mounting structure and fixing method of ink jet type recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000190465A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004090493A (en) * | 2002-08-30 | 2004-03-25 | Konica Minolta Holdings Inc | Mounting structure of recording head, printer, and mounting method of recording head |
| JP2004243666A (en) * | 2003-02-14 | 2004-09-02 | Mutoh Ind Ltd | Recording head attachment mechanism in ink jet printer |
| KR20040090830A (en) * | 2003-04-18 | 2004-10-27 | 일리정공 주식회사 | Plotter head calibrating holder |
| KR100672210B1 (en) * | 2005-06-27 | 2007-01-22 | 주식회사 디지아이 | Head unit of digital printing machine |
| JP2008296518A (en) * | 2007-06-01 | 2008-12-11 | Kyocera Corp | Inkjet head assembly and method for manufacturing inkjet head |
| JP2009012249A (en) * | 2007-07-03 | 2009-01-22 | Konica Minolta Medical & Graphic Inc | Ink jet recorder and head attachment mechanism |
| WO2017011924A1 (en) * | 2015-07-23 | 2017-01-26 | Radex Ag | Mounting assembly for mounting a plurality of inkjet print modules |
| JP2019202522A (en) * | 2018-05-25 | 2019-11-28 | コニカミノルタ株式会社 | Image forming apparatus |
-
1998
- 1998-12-24 JP JP36749198A patent/JP2000190465A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004090493A (en) * | 2002-08-30 | 2004-03-25 | Konica Minolta Holdings Inc | Mounting structure of recording head, printer, and mounting method of recording head |
| JP2004243666A (en) * | 2003-02-14 | 2004-09-02 | Mutoh Ind Ltd | Recording head attachment mechanism in ink jet printer |
| KR20040090830A (en) * | 2003-04-18 | 2004-10-27 | 일리정공 주식회사 | Plotter head calibrating holder |
| KR100672210B1 (en) * | 2005-06-27 | 2007-01-22 | 주식회사 디지아이 | Head unit of digital printing machine |
| JP2008296518A (en) * | 2007-06-01 | 2008-12-11 | Kyocera Corp | Inkjet head assembly and method for manufacturing inkjet head |
| JP2009012249A (en) * | 2007-07-03 | 2009-01-22 | Konica Minolta Medical & Graphic Inc | Ink jet recorder and head attachment mechanism |
| WO2017011924A1 (en) * | 2015-07-23 | 2017-01-26 | Radex Ag | Mounting assembly for mounting a plurality of inkjet print modules |
| JP2019202522A (en) * | 2018-05-25 | 2019-11-28 | コニカミノルタ株式会社 | Image forming apparatus |
| JP7091835B2 (en) | 2018-05-25 | 2022-06-28 | コニカミノルタ株式会社 | Image forming device |
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