JPH03275375A - Printing head holding structure - Google Patents
Printing head holding structureInfo
- Publication number
- JPH03275375A JPH03275375A JP7554190A JP7554190A JPH03275375A JP H03275375 A JPH03275375 A JP H03275375A JP 7554190 A JP7554190 A JP 7554190A JP 7554190 A JP7554190 A JP 7554190A JP H03275375 A JPH03275375 A JP H03275375A
- Authority
- JP
- Japan
- Prior art keywords
- platen roller
- roll paper
- bracket member
- head
- print head
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Common Mechanisms (AREA)
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明はファクシミリ装置等に使用して好適な印字ヘッ
ドの保持構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a print head holding structure suitable for use in facsimile machines and the like.
[従来の技術]
電話網を利用して文書、画像情報等の送受信を行う一般
事務用のファクシミリ装置においては、相手装置からの
伝送信号を受信すると、装置内部にセットされたロール
紙を、ステッピングモータによって回転駆動されるプラ
テンローラで繰り出し、印字ヘッドで記録し、1画面の
記録が終了すると、カッターで切断して排出口から装置
外部に受信記録紙として排出するように構成されている
。[Prior Art] In a facsimile machine for general office use that uses a telephone network to send and receive documents, image information, etc., when a transmission signal is received from the other party's machine, the roll paper set inside the machine is The paper is fed out by a platen roller rotationally driven by a motor, recorded by a print head, and when one screen of recording is completed, is cut by a cutter and discharged from the discharge port to the outside of the apparatus as a received recording paper.
印字ヘッドは通常サーマルヘッドが使用され、保持構造
としては固定式と可動(フローティング)式の2種類が
ある。固定式は筐体にねし止めされるもので、−旦取り
付けると1ラテンローラに対する印字中心のずれおよび
ヘッドの傾きを調整できないと云う問題があった。これ
に対して可動式は筐体に対して印字ヘッドを浮かして取
付け、ばねによってプラテンローラに圧接している。A thermal head is usually used as the print head, and there are two types of holding structure: a fixed type and a movable (floating) type. The fixed type is screwed onto the housing, and once installed, there is a problem in that it is not possible to adjust the deviation of the print center relative to one Latin roller and the inclination of the head. On the other hand, in the movable type, the print head is mounted floating relative to the housing, and is pressed against the platen roller by a spring.
[発明が解決しようとする課題]
しかしながら、このような従来の可動式印字ヘッドの保
持構造にあっては、印字ヘッドを所定の位置に確実に位
置決めすることが難しく、またサーマルヘッドを全長に
互って均一な圧接力でプラチンローラに圧接することが
難しく、印字ずれを生じたり、印字品質が一定しないと
云う問題があった。[Problems to be Solved by the Invention] However, with such a conventional movable print head holding structure, it is difficult to reliably position the print head at a predetermined position, and it is difficult to reliably position the print head at a predetermined position. Therefore, it is difficult to apply pressure to the platinum roller with uniform pressure, which causes problems such as print misalignment and inconsistent print quality.
したがって、本発明は上記したような従来の問題点に鑑
みてなされたもので、その目的とするところは、簡単な
構成で可動型印字ヘッドを安定且つ確実に保持し、プラ
テンローラに確実に圧接することができ、印字を良好に
行い得るようにした印字ヘッドの保持構造を提供するこ
とにある。Therefore, the present invention has been made in view of the above-mentioned conventional problems, and its purpose is to stably and reliably hold a movable print head with a simple structure and securely press it against the platen roller. It is an object of the present invention to provide a print head holding structure that allows printing to be carried out satisfactorily.
[課題を解決するための手段]
本発明は上記目的を達成するため、ブラケット部材に取
り付けられたヘッド本体と、前記ブラケット部材を左右
方向に回動自在に軸支する自在継手と、装置本体側に設
けられ前記自在継手を前後方向に移動自在に且つ上下方
向に回動自在に支持する軸受部と、前記ブラケット部材
を付勢し前記ヘッド本体をロール紙を介してプラテンロ
ーラに圧接する圧縮コイルばねと、前記ブラケット部材
の両側部に設けられ前記プラテンローラの各軸端に係合
する係合部とで構成したものである。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a head main body attached to a bracket member, a universal joint that pivotally supports the bracket member so as to be rotatable in the left-right direction, and a device main body side. a bearing section that is provided on and supports the universal joint so as to be movable in the front-back direction and rotatable in the up-down direction; and a compression coil that biases the bracket member and presses the head body against the platen roller via the roll paper. It is composed of a spring and engaging portions provided on both sides of the bracket member and engaging with each shaft end of the platen roller.
[作用]
本発明において、ブラケット部材は自在継手によって左
右方向に回動自在に保持されることによりプラテンロー
ラに圧接された時の左右方向の傾きを調整される。ブラ
ケット部材の係合部はプラテンローラの軸端に係合する
ことで、印字ヘッドの前後方向の位置決めを行う。自在
継手は軸受部によって前後方向に移動自在で且つ上下方
向に回動自在に軸支されることにより、印字ヘッドの前
後方向の取付誤差を吸収する。[Function] In the present invention, the bracket member is held rotatably in the left-right direction by a universal joint, so that the inclination in the left-right direction when pressed against the platen roller is adjusted. The engagement portion of the bracket member engages with the shaft end of the platen roller, thereby positioning the print head in the front-rear direction. The universal joint absorbs installation errors in the front and rear direction of the print head by being supported by the bearing portion so as to be movable in the front and rear directions and rotatable in the vertical direction.
[実施例]
以下、本発明を図面に示す実施例に基づいて詳細に説明
する。[Example] Hereinafter, the present invention will be described in detail based on an example shown in the drawings.
第1図は本発明に係る印字ヘッドの保持構造を備えたフ
ァクシミリ装置の受信部の断面図、第2図は印字ヘッド
とプラテンローラの分解斜視図、第3図は保護カバーの
一部破断斜視図である。Fig. 1 is a cross-sectional view of a receiving section of a facsimile machine equipped with a print head holding structure according to the present invention, Fig. 2 is an exploded perspective view of the print head and platen roller, and Fig. 3 is a partially cutaway perspective view of the protective cover. It is a diagram.
これらの図において、1はファクシミリ装置の筐体で、
この筐体1は上下に2分割形成され互いに開口面を嵌合
させて一体的に結合されるロアーケース2およびアッパ
ーケース3と、ロアーケース2の上面前半部中央の開口
部分を覆う開閉可能な受信部カバー4と、同じくロアー
ケース2の上面後半部中央の開口部分を覆う着脱可能な
送信部カバー(図示せず)等で構成されている。In these figures, 1 is the housing of the facsimile machine;
This housing 1 is formed into two parts, upper and lower, and has a lower case 2 and an upper case 3, which are integrally connected by fitting their openings together, and an opening in the center of the front half of the upper surface of the lower case 2, which can be opened and closed. It is comprised of a receiver cover 4, a removable transmitter cover (not shown), etc. that similarly covers the opening at the center of the rear half of the upper surface of the lower case 2.
筐体1の内部は前半部を受信部5、後半部を送信部6と
され、ロアーケース2の前面部2Aには記録されたロー
ル紙7を排出するスリット状の排出口8が設けられ、ア
ッパーケース3の−ah面にはハンドセット9が設置さ
れている。Inside the housing 1, the front half is used as a receiving section 5, and the second half is used as a transmitting section 6, and the front section 2A of the lower case 2 is provided with a slit-shaped discharge port 8 for discharging the recorded roll paper 7. A handset 9 is installed on the -ah side of the upper case 3.
前記受信部5には前記ロール紙7のロール紙本体7Aを
収納するロール紙収納ケース10が前記ロアーケース2
に一体に形成されている。ロール紙収納ケース10と前
記排出口8との間には駆動モータ(図示せず)によって
第1図矢印A方向に回転されロール紙7を排出口8に向
けて送り出すプラテンローラ12と、ロール紙7を排出
口8に案内するガイド板13と、ロール紙7を介して前
記プラテンローラ12に斜め上方から圧接される印字ヘ
ッド14と、印字ヘッド14をロール紙7から保護する
保護カバー15と、ロール紙7の有無を検出するロール
紙検出用センサ16およびロール紙7をカットするカッ
ター17等が配設されている。In the receiving section 5, a roll paper storage case 10 for storing the roll paper main body 7A of the roll paper 7 is connected to the lower case 2.
is integrally formed. Between the roll paper storage case 10 and the discharge port 8, there is a platen roller 12 which is rotated in the direction of arrow A in FIG. 1 by a drive motor (not shown) and feeds the roll paper 7 toward the discharge port 8, and a roll paper a guide plate 13 that guides the print head 7 to the discharge port 8; a print head 14 that is pressed against the platen roller 12 from diagonally above via the roll paper 7; and a protective cover 15 that protects the print head 14 from the roll paper 7. A roll paper detection sensor 16 that detects the presence or absence of the roll paper 7, a cutter 17 that cuts the roll paper 7, and the like are provided.
前記プラテンローラ12の各軸端12A、12Bは、前
記ロアーケース2の内底面に突設された左右一対の軸受
部18A、18Bの上端面に形成された0字状溝19に
それぞれ上方から挿入され回転自在に軸支されている。Each shaft end 12A, 12B of the platen roller 12 is inserted from above into a 0-shaped groove 19 formed on the upper end surface of a pair of left and right bearing portions 18A, 18B protruding from the inner bottom surface of the lower case 2. and is rotatably supported.
また、一方の軸端12Aには駆動モータからの回転伝達
を受ける平歯車20か嵌合固定されている。Further, a spur gear 20 that receives rotation transmission from a drive motor is fitted and fixed to one shaft end 12A.
前記印字ヘッド14は可動型ヘッドを形成するもので、
サーマルヘッドからなるヘッド本体22と、先端部裏面
に前記ヘッド本体22が取り付けられたブラケット部材
23を備えている。ブラケット部材23は基端部幅方向
中央が自在継手24に荷下がりに傾斜する第1の軸25
を介して左右方向に回動(揺動)自在に軸支されている
。また、ブラケット部材23の先端部両側縁には下端面
に前記プラテンローラ12の各軸端12A、12Bが嵌
合するU字状溝26を有する係合部27がそれぞれ折り
曲げ形成によって一体に設けられている。一方、ブラケ
ット部材23の上面には左右−対の移動規制用ビン28
が突設されており、これらのビン28は前記受信部カバ
ー4の裏面に取り付けられたヘッド取付板29のストッ
パ30によって上下方向に摺動自在に挿入されている。The print head 14 forms a movable head,
It includes a head main body 22 made of a thermal head, and a bracket member 23 to which the head main body 22 is attached to the back surface of the tip. The bracket member 23 has a first shaft 25 whose center in the width direction of the base end is inclined toward the universal joint 24.
It is pivotally supported so that it can freely rotate (swing) in the left and right direction. Further, on both side edges of the tip end of the bracket member 23, engaging portions 27 having U-shaped grooves 26 in which the respective shaft ends 12A and 12B of the platen roller 12 are fitted are integrally provided on the lower end surface by bending. ing. On the other hand, a pair of left and right movement regulating bins 28 are provided on the upper surface of the bracket member 23.
These bins 28 are slidably inserted in the vertical direction by a stopper 30 of a head mounting plate 29 attached to the back surface of the receiver cover 4.
前記ストッパ30は前記ヘッド取付板2つに切り起こし
形成された板片からなり、前記ビン28が挿入されるU
字状溝31を有している。前記ビン28の上端には前記
U字状溝31からの抜けを防止する頭部28Aが一体に
設けられている。そして、ブラケット部材23は、左右
一対の圧縮コイルばね32によって下方に付勢されるこ
とにより、前記ヘッド本体22を前記プラテンローラ1
2の上側周面に所定圧にて圧接している。圧縮コイルば
ね32は前記移動規制用ビン28と共に、前記プラテン
ローラ12の軸線とヘッド本体22の印字中心とを結ぶ
面内に位置するように配置され、上端が前記ヘッド取付
板29に圧接係止されている。The stopper 30 is made of a plate piece cut and bent on the two head mounting plates, and is formed of a U plate into which the bottle 28 is inserted.
It has a character-shaped groove 31. A head 28A is integrally provided at the upper end of the bottle 28 to prevent it from coming off the U-shaped groove 31. The bracket member 23 is biased downward by a pair of left and right compression coil springs 32, thereby moving the head main body 22 toward the platen roller 1.
It is pressed against the upper circumferential surface of No. 2 at a predetermined pressure. The compression coil spring 32 is arranged together with the movement regulating pin 28 so as to be located within a plane connecting the axis of the platen roller 12 and the printing center of the head body 22, and its upper end is pressed into contact with the head mounting plate 29 and latched. has been done.
前記自在継手24は、前記第1の軸25と直交する水平
な第2の軸35を有し、この第2の軸35が前記受信部
カバー4の裏面に一体に突設された一対の軸受部36の
長孔37によって前記第1の軸25の軸線方向に移動自
在に且つ回動自在に軸支されている。The universal joint 24 has a horizontal second shaft 35 that is perpendicular to the first shaft 25, and the second shaft 35 is connected to a pair of bearings integrally protruding from the back surface of the receiver cover 4. The first shaft 25 is movably and rotatably supported in the axial direction of the first shaft 25 by a long hole 37 of the portion 36 .
前記保護カバー15はステンレス等の金属板の折り曲げ
加工によって第3図に示すような形状に形成されること
により、垂直なカバー本体15Aと、カバー本体15A
の上端に設けられ前記ヘッド取付板29の下面に止めね
じ39によって固定される複数個の取付部15Bと、カ
バー本体15Aの下端よりプラテンローラ12方向に略
直角に折り曲げられた折曲片15Cと、折曲片15Cの
先端に設けられたV字状折曲片15Dとで構成されてい
る。カバー本体15Aは中央部に前記自在継手24が挿
通される開口部40を有して、第1図に示すように前記
ロール紙収納ケース10内のロール紙本体7Aの前方に
近接して位置している。The protective cover 15 is formed into a shape as shown in FIG. 3 by bending a metal plate such as stainless steel, so that it has a vertical cover body 15A and a cover body 15A.
A plurality of mounting portions 15B are provided at the upper end and fixed to the lower surface of the head mounting plate 29 by set screws 39, and a bent piece 15C is bent from the lower end of the cover body 15A at a substantially right angle in the direction of the platen roller 12. , and a V-shaped bent piece 15D provided at the tip of the bent piece 15C. The cover main body 15A has an opening 40 in the center through which the universal joint 24 is inserted, and is located close to the front of the roll paper main body 7A in the roll paper storage case 10, as shown in FIG. ing.
前記折曲片15Cは前記ロール紙収納ケース10の前面
壁41の上面4LAと平行に近接対向し、前記V字状折
曲片15Dは前記前面壁41と前記プラテンローラ12
との間に位置している。折曲片15C,V字状折曲片1
5Dと前記前面壁41上面との隙間はロール紙7の搬送
通路を形成している。前記カバー本体15Aと折曲片1
5Cとの接合部は適宜な曲率を以て湾曲し、ロール紙7
の表面、すなわち記録面を扱きロール紙7のカール習性
を取り除く第1扱き部44を形成している。The bent piece 15C is close to and parallel to the upper surface 4LA of the front wall 41 of the roll paper storage case 10, and the V-shaped bent piece 15D is arranged between the front wall 41 and the platen roller 12.
It is located between. Bending piece 15C, V-shaped bending piece 1
A gap between 5D and the upper surface of the front wall 41 forms a conveyance path for the roll paper 7. The cover body 15A and the bent piece 1
The joint with 5C is curved with an appropriate curvature, and the roll paper 7
A first handling section 44 is formed that handles the surface of the roll paper 7, that is, the recording surface, and removes the curling tendency of the roll paper 7.
同様に前記V字状折曲片15Dの頂部もロール紙7の表
面を扱・く第2扱き部45を形成している。Similarly, the top of the V-shaped bent piece 15D also forms a second handling portion 45 for handling the surface of the roll paper 7.
前記ロール紙検出用センサ16は反射型フォトセンサか
らなり、前記前面壁41の上面41Aに形成された挿通
孔47内に挿入配置され、発光素子から出た光がロール
紙7に当たって反射し、その反射光を受光素子が受光す
ることでロール紙7を検出する。このセンサ16に対応
して前記保護カバー15の第1扱き部44には、ロール
紙7が無い時、発光素子からの光が第1扱き部44に当
たって反射するのを防止する反射防止部48が設けられ
ている。反射防止部48は前記第1扱き部44に凹設さ
れた凹部49内に固着された黒色シートで構成されてい
る。The roll paper detection sensor 16 is made of a reflective photosensor, and is inserted into an insertion hole 47 formed on the upper surface 41A of the front wall 41, and the light emitted from the light emitting element hits the roll paper 7 and is reflected. The roll paper 7 is detected by the light receiving element receiving the reflected light. Corresponding to this sensor 16, the first handling part 44 of the protective cover 15 has an anti-reflection part 48 that prevents light from the light emitting element from hitting the first handling part 44 and being reflected when there is no roll paper 7. It is provided. The antireflection part 48 is composed of a black sheet fixed in a recess 49 formed in the first handling part 44 .
このような構成からなるファクシミリ装置において、ロ
ール紙7は記録面を外側にして巻かれており、ロール紙
収納ケース10内に上方から挿入配置され、その先端部
が前面壁41およびプラテンローラ12の上を通って排
出口8に導かれ、受信部カバー4を閉じると、ヘッド本
体22がロール紙7を介してプラテンローラ12に圧縮
コイルばね32のばね力によって圧接され、第1および
第2扱き部44.45が前面壁41の上面に近接対向し
てロール紙本体7Aとプラテンローラ12間のロール紙
7を押え込む。受信に伴いヘッド本体22による印字が
閏始されると、プラテンローラ12が回転してロール紙
7を送り出し、1画面の受信毎にカッター17によりカ
ットして排出口8から排出する60一ル紙7は、第1、
第2扱き部44.45によって押さえ込まれてカール方
向とは反対方向に折曲げられており、第1、第2扱き部
44.45を通過する際これらによって扱かれ、カール
習性を取り除かれる。In the facsimile machine having such a configuration, the roll paper 7 is wound with the recording surface facing outward, and is inserted into the roll paper storage case 10 from above, with its leading end touching the front wall 41 and the platen roller 12. When the receiver cover 4 is closed, the head main body 22 is pressed against the platen roller 12 via the roll paper 7 by the spring force of the compression coil spring 32, and the first and second handling The portions 44 and 45 closely face the upper surface of the front wall 41 and press down the roll paper 7 between the roll paper main body 7A and the platen roller 12. When the head main body 22 starts printing in response to reception, the platen roller 12 rotates to send out the roll paper 7, and each time one screen is received, the cutter 17 cuts the roll paper 7 and outputs it from the discharge port 8. 7 is the first,
It is held down by the second handling part 44.45 and bent in the opposite direction to the curling direction, and when passing through the first and second handling parts 44.45, it is handled by these and the curling habit is removed.
印字へラド14は、ブラケット部材23の係合部27に
設けた0字状溝26がプラテンローラ12の各軸端12
A、12Bと嵌合することで前後方向の移動を規制され
、これによって印字中心がプラテンローラ12の周面に
的確に圧接される。The printing head 14 has a 0-shaped groove 26 provided in the engaging portion 27 of the bracket member 23 that is connected to each shaft end 12 of the platen roller 12.
By fitting with A and 12B, movement in the front-back direction is restricted, and thereby the printing center is accurately pressed against the circumferential surface of the platen roller 12.
また、ブラケット部材23は自在継手24に第1の軸2
5を介して左右方向に回動自在に取り付けられているの
で、プラテンローラ12に圧接されると、左右方向の傾
きを調整され、ヘッド本体22が全長に互って一定圧に
て圧接される。さらに、ブラケット部材23は移動規制
用ビン28とストッパ30との係合によって左右方向の
移動を規制されているので、印字ずれを生じず、また下
方の移動を規制されているので、プラテンローラ12に
過大な圧接力で圧接されることもない。したがって、プ
ラテンローラ12の回転が円滑で、駆動モータに対する
負荷を軽減させることができる。The bracket member 23 also connects the first shaft 2 to the universal joint 24.
5, so that when it comes into pressure contact with the platen roller 12, the inclination in the left and right direction is adjusted, and the head main body 22 is brought into contact with each other at a constant pressure along its entire length. . Further, since the bracket member 23 is restricted from moving in the left-right direction by the engagement between the movement-restricting bin 28 and the stopper 30, no misalignment of print occurs, and since the bracket member 23 is restricted from moving downward, the platen roller 12 It will not be pressed with excessive pressure. Therefore, the platen roller 12 rotates smoothly, and the load on the drive motor can be reduced.
また、自在継手24は前後方向に移動自在に取り付けら
れているので、印字ヘッド14の前後方向の取付誤差を
吸収し、印字中心をプラテンローラ12の周面に正確に
圧接することができる。Moreover, since the universal joint 24 is attached so as to be movable in the front-rear direction, it is possible to absorb mounting errors in the front-rear direction of the print head 14 and accurately press the center of printing onto the circumferential surface of the platen roller 12.
「発明の効果]
以上述べたように本発明に係る印字ヘッドの保持構造に
よれば、ヘッド本体をプラテンローラの周面に対して全
長に亙って均一な圧接力で圧接でき、また可動型にも拘
らずヘッド本体の前後左右方向の位置決めを確実に行う
ことができ、印字性能を向上させることができる。[Effects of the Invention] As described above, according to the print head holding structure according to the present invention, the head main body can be pressed against the circumferential surface of the platen roller with uniform pressing force over the entire length, and the movable Nevertheless, the head main body can be reliably positioned in the front, rear, left and right directions, and printing performance can be improved.
第1図は本発明に係る印字ヘッドの保持構造を備えたフ
ァクシミリ装置の受信部の断面図、第2図は印字ヘッド
とプラテンローラの分解斜視図、第3図は保護カバーの
一部破断斜視図である。
1・・・筐体、2・・・ロアーケース、3・・・アッパ
ーケース、4・・・受信部カバー5・・・受信部、7・
・・ロール紙、7A・・・ロール紙本体、8・・・排出
口、10・・・ロール紙収納ケース、12・・・プラテ
ンローラ、14・・・印字ヘッド、15・・・保護カバ
ー16・・・ロール紙検出用センサ、17・−・カッタ
ー、22・・・ヘッド本体、23・−・ブラケット部材
、24・・−自在継手、27・・・係合部、28・・・
移動規制用ビン、30・・・ストッパ、32・・・圧縮
コイルばね、36・・・軸受部。Fig. 1 is a cross-sectional view of a receiving section of a facsimile machine equipped with a print head holding structure according to the present invention, Fig. 2 is an exploded perspective view of the print head and platen roller, and Fig. 3 is a partially cutaway perspective view of the protective cover. It is a diagram. DESCRIPTION OF SYMBOLS 1... Housing, 2... Lower case, 3... Upper case, 4... Receiving part cover 5... Receiving part, 7...
... Roll paper, 7A... Roll paper body, 8... Outlet, 10... Roll paper storage case, 12... Platen roller, 14... Print head, 15... Protective cover 16 ... Roll paper detection sensor, 17... Cutter, 22... Head main body, 23... Bracket member, 24... Universal joint, 27... Engaging portion, 28...
Movement regulating bottle, 30...Stopper, 32...Compression coil spring, 36...Bearing portion.
Claims (1)
ラケット部材を左右方向に回動自在に軸支する自在継手
と、装置本体側に設けられ前記自在継手を前後方向に移
動自在に且つ上下方向に回動自在に支持する軸受部と、
前記ブラケット部材を付勢し前記ヘッド本体をロール紙
を介してプラテンローラに圧接する圧縮コイルばねと、
前記ブラケット部材の両側部に設けられ前記プラテンロ
ーラの各軸端に係合する係合部とを備えたことを特徴と
する印字ヘッドの保持構造。A head body attached to a bracket member, a universal joint that pivotally supports the bracket member so as to be rotatable in the left-right direction, and a universal joint provided on the apparatus main body side so that the universal joint can be freely moved in the front-rear direction and rotated in the up-down direction. A bearing part that supports freely,
a compression coil spring that urges the bracket member and presses the head body against the platen roller via the roll paper;
A print head holding structure comprising: engaging portions provided on both sides of the bracket member and engaging with each shaft end of the platen roller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2075541A JP2562709B2 (en) | 1990-03-27 | 1990-03-27 | Print head holding structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2075541A JP2562709B2 (en) | 1990-03-27 | 1990-03-27 | Print head holding structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03275375A true JPH03275375A (en) | 1991-12-06 |
JP2562709B2 JP2562709B2 (en) | 1996-12-11 |
Family
ID=13579168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2075541A Expired - Fee Related JP2562709B2 (en) | 1990-03-27 | 1990-03-27 | Print head holding structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2562709B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996014213A1 (en) * | 1994-11-08 | 1996-05-17 | Seiko Instruments Inc. | Printer |
US6361231B1 (en) | 1999-03-25 | 2002-03-26 | Seiko Epson Corporation | Printer having a medium transportation path open/close mechanism |
US6789969B2 (en) | 2001-06-25 | 2004-09-14 | Seiko Epson Corporation | Printer |
JP2010052278A (en) * | 2008-08-28 | 2010-03-11 | Seiko Instruments Inc | Thermal printer |
JP2011161815A (en) * | 2010-02-10 | 2011-08-25 | Citizen Holdings Co Ltd | Thermal printer |
JP2015047741A (en) * | 2013-08-30 | 2015-03-16 | セイコーエプソン株式会社 | Print head and printer |
JP2019177517A (en) * | 2018-03-30 | 2019-10-17 | ブラザー工業株式会社 | Printer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630880A (en) * | 1979-08-24 | 1981-03-28 | Hitachi Ltd | Positioning mechanism for heat-sensitive recorder |
JPS5750357U (en) * | 1980-09-04 | 1982-03-23 | ||
JPS6089375A (en) * | 1983-10-21 | 1985-05-20 | Ricoh Co Ltd | Pressing method of thermal head in thermal transfer recording system |
JPS63194730U (en) * | 1987-06-05 | 1988-12-15 |
-
1990
- 1990-03-27 JP JP2075541A patent/JP2562709B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5630880A (en) * | 1979-08-24 | 1981-03-28 | Hitachi Ltd | Positioning mechanism for heat-sensitive recorder |
JPS5750357U (en) * | 1980-09-04 | 1982-03-23 | ||
JPS6089375A (en) * | 1983-10-21 | 1985-05-20 | Ricoh Co Ltd | Pressing method of thermal head in thermal transfer recording system |
JPS63194730U (en) * | 1987-06-05 | 1988-12-15 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996014213A1 (en) * | 1994-11-08 | 1996-05-17 | Seiko Instruments Inc. | Printer |
US6361231B1 (en) | 1999-03-25 | 2002-03-26 | Seiko Epson Corporation | Printer having a medium transportation path open/close mechanism |
US6789969B2 (en) | 2001-06-25 | 2004-09-14 | Seiko Epson Corporation | Printer |
JP2010052278A (en) * | 2008-08-28 | 2010-03-11 | Seiko Instruments Inc | Thermal printer |
JP2011161815A (en) * | 2010-02-10 | 2011-08-25 | Citizen Holdings Co Ltd | Thermal printer |
JP2015047741A (en) * | 2013-08-30 | 2015-03-16 | セイコーエプソン株式会社 | Print head and printer |
JP2019177517A (en) * | 2018-03-30 | 2019-10-17 | ブラザー工業株式会社 | Printer |
Also Published As
Publication number | Publication date |
---|---|
JP2562709B2 (en) | 1996-12-11 |
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