JP3228329B2 - Carriage detection device at home position - Google Patents
Carriage detection device at home positionInfo
- Publication number
- JP3228329B2 JP3228329B2 JP36223197A JP36223197A JP3228329B2 JP 3228329 B2 JP3228329 B2 JP 3228329B2 JP 36223197 A JP36223197 A JP 36223197A JP 36223197 A JP36223197 A JP 36223197A JP 3228329 B2 JP3228329 B2 JP 3228329B2
- Authority
- JP
- Japan
- Prior art keywords
- carriage
- home position
- flag
- optical sensor
- detection 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 - Fee Related
Links
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はホームポジションに
移行したキャリッジを検知するための装置に関する。[0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for detecting a carriage moved to a home position.
【０００２】[0002]
【従来の技術】キャリッジがホームポジションへ移動し
てきたことを検知する検知装置には、通常、発光素子と
受光素子とからなる透過形のフォトインタラプタが使用
され、キャリッジの一部に設けたフラッグをこれらの素
子の間に位置させることによって、キャリッジがホーム
ポジションに移行してきたことを検知させるようにして
いる。2. Description of the Related Art A detecting device for detecting that a carriage has moved to a home position usually employs a transmission type photo interrupter including a light emitting element and a light receiving element, and a flag provided on a part of the carriage is used. By being located between these elements, it is detected that the carriage has moved to the home position.
【０００３】ところが、この種の透過形のフォトインタ
ラプタでは、外乱光が入射しないように発光素子と受光
素子とを近接位置させるような構成が採られている関係
上、使用する用紙に応じてプラテンギャップを調整した
場合には、これらの素子の内にフラッグを通すことがで
きなくなってしまうといった不都合が生じる。However, in this type of transmission type photointerrupter, a light-emitting element and a light-receiving element are located close to each other so that disturbance light is not incident. If the gap is adjusted, a disadvantage arises in that a flag cannot be passed through these elements.
【０００４】[0004]
【発明が解決しようとする課題】本発明はこのような問
題に鑑みてなされたもので、その目的とするところは、
プラテンギャップの調整の如何に拘りなくホームポジシ
ョンに移行したキャリッジを確実に検出することのでき
る新たなキャリッジの検知装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of such a problem.
It is an object of the present invention to provide a new carriage detection device that can reliably detect a carriage that has moved to a home position regardless of adjustment of a platen gap.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明はこの
ような課題を達成するためのホームポジションにおける
キャリッジの検知装置として、ホームポジションに配設
した光センサの近傍に、記録ヘッドの一部に押圧されて
光センサに向けて変位するフラップ部材を、常時光セン
サから離間させる方向に付勢した状態で配設するととも
に、このフラップ部材の一部に、光センサの隙間に出入
するフラッグを設けるようにしたものである。That is, the present invention provides a device for detecting a carriage at a home position in order to achieve such a problem. A flap member that is pressed and displaced toward the optical sensor is always disposed in a state of being urged in a direction to separate from the optical sensor, and a part of the flap member has a flag that enters and exits the gap between the optical sensors. It is like that.
【０００６】[0006]
【発明の実施の形態】そこで以下に本発明の実施例につ
いて説明する。図面は本発明の一実施例を示したもので
ある。図において符号１は、キャリッジ１２の走行方向
一端部に位置するようプリンタ本体のホームポジション
に取付けたフラップベースで、このフラップベース１
は、キャリッジ１２の走行方向に向けてコ字状に折曲げ
形成した板材により形成された上、フォトインタラプタ
Ｓを跨ぐようにその脚部２、２を介してベースフレーム
１０上に一体的に固定されている。Embodiments of the present invention will be described below. The drawings show an embodiment of the present invention. In the drawing, reference numeral 1 denotes a flap base attached to a home position of the printer main body so as to be located at one end of the carriage 12 in the traveling direction.
Is formed of a plate bent in a U-shape in the traveling direction of the carriage 12 and is integrally fixed on the base frame 10 via its legs 2 and 2 so as to straddle the photointerrupter S. Have been.
【０００７】ところで、図中符号５は、ホームポジショ
ンへ移動してきたキャリッジ１２に押されてフォトイン
タラプタＳに検知させるべく変位するフラップ部材で、
このフラップ部材５は、この両側に設けた係止片６、６
をフラップベース１の頂板３両側に係合させることによ
ってキャリッジ１２の移動方向に摺動自在に取付けられ
ている。[0007] By the way, reference numeral 5 in the figure denotes a flap member which is pushed by the carriage 12 which has moved to the home position and is displaced to be detected by the photo interrupter S.
The flap member 5 is provided with locking pieces 6, 6 provided on both sides.
Are engaged with both sides of the top plate 3 of the flap base 1 so as to be slidable in the moving direction of the carriage 12.
【０００８】このフラップ部材５は、フラップベース１
の一方の脚部２の間に介装したスプリング９により常時
印字領域側に変位し得るよう付勢されており、かつ、そ
の上部中央に突設した当接片７をフラップベース１の頂
板３に設けたキャリッジ１２の走行方向に延びるガイド
孔４から突出させて、キャリッジ１２の一部に設けた凸
部１３と当接するよう対峙させている。[0008] The flap member 5 is a flap base 1
A spring 9 interposed between one of the legs 2 is biased so as to be constantly displaced toward the printing area, and a contact piece 7 protruding from the upper center of the spring 9 is attached to the top plate 3 of the flap base 1. The carriage 12 protrudes from the guide hole 4 extending in the traveling direction of the carriage 12 and is opposed to a projection 13 provided on a part of the carriage 12 so as to come into contact therewith.
【０００９】なお図中符号８は、キャリッジ１２に押圧
されて変位した際にフォトインタラプタＳの間隙に入り
込んでキャリッジ１２のホームポジションへの移行を検
知させるフラッグを示しており、また、符号１５はキャ
リッジ１２に搭載されたインパクトドット式の印字ヘッ
ド、１６、１６はキャリッジの走行を案内するガイド軸
をそれぞれ示している。Reference numeral 8 in the figure denotes a flag which, when pressed and displaced by the carriage 12, enters the gap of the photointerrupter S and detects the shift of the carriage 12 to the home position. Reference numeral 15 denotes a flag. The impact dot type print head mounted on the carriage 12, and reference numerals 16 and 16 denote guide shafts for guiding the carriage to travel, respectively.
【００１０】このように構成された実施例において、い
ま、所要の記録書込み終えた印字ヘッド１５がホームポ
ジションのもとへ移動してくると、フラップベース１に
摺動自在に取付けられたフラップ部材５は、プラテンギ
ャップの調整により走行方向と直交する向きに変位した
キャリッジ１２の位置の如何に拘りなく、その当接片７
をキャリッジの一部に設けた突部１３に押圧され、スプ
リング９の付勢力に抗してフォトインタラプタＳ側へと
変位し、フラップ部材５に設けたフラッグ８をフォトイ
ンタラプタＳの間隙に入り込ませて、キャリッジ１２の
ホームポジションへの移行を検知させる。In the embodiment constructed as described above, when the print head 15 having completed the required recording and writing moves to the home position, the flap member slidably attached to the flap base 1. 5 is the contact piece 7 regardless of the position of the carriage 12 displaced in the direction perpendicular to the running direction by adjusting the platen gap.
Is pressed by the projection 13 provided on a part of the carriage, and displaced toward the photointerrupter S against the urging force of the spring 9 to cause the flag 8 provided on the flap member 5 to enter the gap of the photointerrupter S. Thus, the shift of the carriage 12 to the home position is detected.
【００１１】[0011]
【発明の効果】以上述べたように本発明によれば、ホー
ムポジションに配設した光センサの近傍に、記録ヘッド
の一部に押圧されて光センサ側にへ変位するフラップ部
材を設け、このフラップ部材に光センサの隙間に出入す
るフラッグを設けるようにしたので、紙厚に応じてプラ
テンギャップを如何に変位させても、記録ヘッドと別体
のフラッグ部材を、常に記録ヘッドの走行方向と直交す
る向きの同じ位置に保持することにより、これと一体の
フラッグによって記録ヘッドのホームポジションへの移
行を確実に検知させることができる。As described above, according to the present invention, the flap member which is pressed by a part of the recording head and is displaced toward the optical sensor is provided near the optical sensor disposed at the home position. Since the flap member is provided with a flag that goes into and out of the gap between the optical sensors, no matter how the platen gap is displaced in accordance with the paper thickness, the flag member separate from the recording head always moves in the direction of travel of the recording head. By holding the recording head at the same position in the orthogonal direction, it is possible to reliably detect the shift of the recording head to the home position by the flag integrated therewith.
【図１】本発明の一実施例を示す装置の斜視図である。FIG. 1 is a perspective view of an apparatus showing one embodiment of the present invention.
【図２】同上装置の側面図である。FIG. 2 is a side view of the same device.
【図３】同上装置の正面図である。FIG. 3 is a front view of the same device.
１ フラップベース ５ フラップ部材 ７ 当接片 ８ フラッグ １２ キャリッジ １５ 印字ヘッド Ｓ フォトインタラプタ DESCRIPTION OF SYMBOLS 1 Flap base 5 Flap member 7 Contact piece 8 Flag 12 Carriage 15 Print head S Photo interrupter
Claims (1)
近傍に、記録ヘッドの一部に押圧されて上記光センサに
向けて変位するフラップ部材を、常時上記光センサから
離間させる方向に付勢した状態で配設するとともに、上
記フラップ部材の一部に、上記光センサの隙間に出入す
るフラッグを設けたことを特徴とするホームポジション
におけるキャリッジの検知装置。1. A flap member, which is pressed by a part of a recording head and is displaced toward the optical sensor, is constantly urged in a direction to separate the optical sensor from the optical sensor in the vicinity of the optical sensor disposed at a home position. A carriage detection device at a home position, wherein the carriage is disposed in a state, and a flag is provided on a part of the flap member so as to enter and leave a gap between the optical sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36223197A JP3228329B2 (en) | 1997-12-11 | 1997-12-11 | Carriage detection device at home position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36223197A JP3228329B2 (en) | 1997-12-11 | 1997-12-11 | Carriage detection device at home position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11170650A JPH11170650A (en) | 1999-06-29 |
| JP3228329B2 true JP3228329B2 (en) | 2001-11-12 |
Family
ID=18476327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36223197A Expired - Fee Related JP3228329B2 (en) | 1997-12-11 | 1997-12-11 | Carriage detection device at home position |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3228329B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159549B (en) | 2018-09-18 | 2021-02-23 | 深圳市邻友通科技发展有限公司 | Printing control method, control device, storage medium and printing equipment |
-
1997
- 1997-12-11 JP JP36223197A patent/JP3228329B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11170650A (en) | 1999-06-29 |
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