JPS58148777A - Heat-sensitive printer using laser diode - Google Patents
Heat-sensitive printer using laser diodeInfo
- Publication number
- JPS58148777A JPS58148777A JP57030989A JP3098982A JPS58148777A JP S58148777 A JPS58148777 A JP S58148777A JP 57030989 A JP57030989 A JP 57030989A JP 3098982 A JP3098982 A JP 3098982A JP S58148777 A JPS58148777 A JP S58148777A
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- paper
- laser
- heat
- optical fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/475—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material for heating selectively by radiation or ultrasonic waves
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
- G02B6/425—Optical features
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Semiconductor Lasers (AREA)
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は改良された感熱記録ヘッドを有する感熱プリン
ターに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal printer having an improved thermal recording head.
感熱記録用紙を用いたプリンターにおいて、従来の感熱
記録ヘッドは、Ta−8i簿膜やRuO□厚膜等の発熱
抵抗体をダイオードアレイと結合したものからなり、タ
イオードアレイヲ介して各部(各画素)印加電圧を制御
することにより、このヘッドに圧接した感熱記録用紙を
所望のパターンにおいて感熱・発色させるものであった
。In printers using heat-sensitive recording paper, the conventional heat-sensitive recording head consists of a diode array combined with a heat-generating resistor such as a Ta-8i thin film or a RuO□ thick film. By controlling the applied voltage (pixel), the heat-sensitive recording paper pressed against this head was made to be sensitive to heat and develop color in a desired pattern.
このような従来型の感熱記録ヘッドにおける大きな問題
は、ヘッド端面と感熱用紙面とが強い圧力(約190g
/α)−ご直接触していることである。すなわち、ヘッ
ド端面は発熱体を保護するための被膜(例えばSiO□
)から々す、これに感熱用紙から削り咽られ、又は溶融
した感熱層月料が付着しやすいのである。そして、この
ようなヘッド端面への異物付着は発熱抵抗体の放熱を阻
止して異常に温度上昇σせ、保護被膜のへアクラックや
、抵抗体自体の断線、劣化等を生ずる原因となる。A major problem with such conventional thermal recording heads is that the end surface of the head and the surface of the thermal paper are under strong pressure (approximately 190g).
/α) - This is something that you are directly touching on. That is, the end face of the head is coated with a coating (for example, SiO□) to protect the heating element.
), and the heat-sensitive layer material scraped from the heat-sensitive paper or melted thereon tends to adhere to it. Such foreign matter adhering to the end face of the head prevents heat dissipation from the heating resistor, causing an abnormal temperature rise σ, which causes hair cracks in the protective coating, disconnection, and deterioration of the resistor itself.
また、記録ヘッドとしての発熱抵抗体の第2の問題は、
その製造において品質のバラツキが大きく歩留りが低い
と6うことである。The second problem with the heating resistor as a recording head is
In the manufacturing process, there are large variations in quality and low yields.
本発明の目的は、発熱抵抗体による接触型ヘッドにおけ
る上記のような問題点を解消するために、レーザー光線
を用いた無接触型ヘット゛を備えた感熱プリンターを提
供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a thermal printer equipped with a non-contact head using a laser beam in order to solve the above-mentioned problems with a contact head using a heating resistor.
上記の目的を達するため、本発明は感熱記録用紙を所定
の輸送路に沿って送るための機構と、前記給送路中にお
いて感熱記録用紙の幅方向に配列され、先端を前記用紙
に対向せしめた複数の赤外線に適したオプチカルファイ
バーと、前記複数のオプチカルファイバーの他端にそれ
ぞれ赤外線レーザービームを入射きせるための複数のレ
ーザーダイオードとを備え、前記複数のレーザーダイオ
ードを選択的に励起することにより前記感熱記録用紙に
所望のプリントパターンを発現させるようにした感熱プ
リンタを構成するものである。In order to achieve the above object, the present invention includes a mechanism for feeding thermal recording paper along a predetermined transport path, and a mechanism arranged in the width direction of the thermal recording paper in the feeding path, with the leading end facing the paper. a plurality of optical fibers suitable for infrared rays, and a plurality of laser diodes for making infrared laser beams incident on the other ends of the plurality of optical fibers, and selectively exciting the plurality of laser diodes. The present invention constitutes a thermal printer capable of producing a desired print pattern on the thermal recording paper.
上記の構成におけるレーザーダイオードは、従来のレー
ザープリンターに用いられてきたtITl視光領域のも
のではなく、感熱シートに直接熱エネルギーを与えうる
赤外線領域のものであり、特に近年開発されたpbs、
Pb5e、及びPb5se化合物半導体によるレーザー
ダイオードは波長4,3−8.5pm、またPb5nS
eの場合には波長8.5〜26μmであるため、この目
的によく適合する。The laser diode in the above configuration is not one in the tITl viewing region used in conventional laser printers, but one in the infrared region that can directly apply thermal energy to the heat-sensitive sheet.
Laser diodes based on Pb5e and Pb5se compound semiconductors have a wavelength of 4.3-8.5 pm, and Pb5nS
In the case of e, since the wavelength is 8.5 to 26 μm, it is well suited for this purpose.
このレーザーダイオードから感熱記録用紙までレーザー
ビームを伝達するための、いわゆる感熱記録ヘッドを構
成するオプチカルファイノく−は、石英又は他の硝子材
料からなる可視光用ファイバーでは吸収が激しく、不都
合であシ、本発明は赤外線領域において好ましい透過性
を有するTI!I、TiBr両化合物化合物体からなる
ファイバーを使用することとした。なお、KBr、Ag
C/、AgBr、CdTe等も赤外線領域において透過
性を有するが、目下のところ耐湿性、又はファイバー形
成上において問題がある。The optical fiber that constitutes the so-called thermal recording head, which transmits the laser beam from the laser diode to the thermal recording paper, is inconvenient because visible light fibers made of quartz or other glass materials absorb strongly. The present invention has TI! which has favorable transparency in the infrared region! It was decided to use a fiber made of both I and TiBr compounds. In addition, KBr, Ag
C/, AgBr, CdTe, etc. are also transparent in the infrared region, but presently have problems with moisture resistance or fiber formation.
以下、図を参照して本発明の実施例につき説明する、
図において、(1)は供給ロール(2)より感熱記録用
紙(3)を所定の給送路に沿って引出すようにした用紙
送り機構である。オプチカルファイバー+41は、用紙
13)の幅方向の画素数に対応して複数個設けられ、各
先端卯が駆動ドラム15+上の用紙表面に対向してその
幅方向に横断するように配列される。各オプチカルファ
イバー(41の後端ニは、対応するレーザーダイオード
D、 、I)2−−−Dnがそれぞれレーザービームを
その後端1]11]に入射させるように連結される。レ
ーザーダイオードD、、D2−−−Dn は@述のとお
り、赤外線領域のレーザービームを発射するPbS又は
5bSe糸化合物半導体からなり、オプチカルファイバ
ー(4)は’I’ t I、’r/Br2H合物のファ
イバーがらなっている。複数のレーザーダイオードはス
イッチング付勢回路(6)により所望のプリントパター
ンに従って選択的に付勢されるようになってぃる。Embodiments of the present invention will be described below with reference to the drawings. In the drawings, (1) is a paper feeding mechanism that pulls out thermal recording paper (3) from a supply roll (2) along a predetermined feeding path. It is. A plurality of optical fibers +41 are provided corresponding to the number of pixels in the width direction of the paper 13), and are arranged so that each tip end faces the paper surface on the drive drum 15+ and crosses the paper surface in the width direction. The rear end of each optical fiber (41) is connected to a corresponding laser diode D, , I) 2 ---Dn such that each laser beam is incident on the rear end 1]11]. As mentioned above, the laser diodes D, D2---Dn are made of PbS or 5bSe thread compound semiconductors that emit laser beams in the infrared region, and the optical fibers (4) are 'I' t I, 'r/Br2H composite semiconductors. It is made up of fibers. The plurality of laser diodes are selectively activated according to the desired printed pattern by a switching activation circuit (6).
上記実施例において、レーザーダイオードD1、D2−
−−Dn としては発光部枠6jlIIIψ、 発光波
境4゜3〜8.5μm、そして出力2.5rnWのもの
を用いた。従って、オプチカルファイバー(41は受光
端(レーザーダイオードII )における直径を611
IIψとし、先端(ヘッド側)における直径を所望のプ
リントドツト忰に応じて100〜250μmψ とする
ことにより、十分に鮮明なプリll!!I像を得ること
ができた。In the above embodiment, the laser diodes D1, D2-
--Dn used was one with a light emitting frame of 6jlIIIψ, a light emitting wave boundary of 4°3 to 8.5 μm, and an output of 2.5 rnW. Therefore, the diameter of the optical fiber (41 is 611 at the receiving end (laser diode II)
IIψ, and the diameter at the tip (head side) is 100 to 250 μmψ depending on the desired print dot height, thereby producing sufficiently clear print dots! ! I was able to obtain an I image.
なお、A−4サイズの記録紙全幅を例えば4ドツト/I
III++でカバーするには800個以上のレーザーダ
イオードを切要とし、そのダイオード配列を前記A−4
の幅内に収めようとすれば、それらを敞段以−ヒに分け
て積み重ねなければならない。Note that the full width of A-4 size recording paper is, for example, 4 dots/I.
III++ coverage requires more than 800 laser diodes, and the diode arrangement is the same as A-4 above.
If you want to fit it within the width of , you have to divide it into multiple tiers and stack them on top of each other.
本発明は以−ヒのとおりであり、次のような効果を得る
ことかできた。The present invention is as follows, and the following effects could be obtained.
(1) 非接触ヘッドであるから、従来の接触型ヘッ
ドの欠点(ヘッド沫護面への記録紙溶融物の付着、又は
同保護面の磨耗等)を完全に解消することができた。(1) Since it is a non-contact head, the drawbacks of conventional contact heads (adhesion of melted recording paper to the head protection surface, wear of the protection surface, etc.) can be completely eliminated.
(2] 前項に関連して、感熱用紙が幅方向の切取ミ
シン目を有するものであっても、定置させたオプチカル
ファイバーの先端(ヘッド)に対しそれらのミシン目は
なんらの障害とならない。(2) In relation to the previous item, even if the thermal paper has cut-out perforations in the width direction, those perforations do not pose any obstacle to the tip (head) of the optical fiber placed in place.
(3) レーザーダイオードのレーザー光線はきわめ
て短時間に点滅し、捷たオプチカルファイバーをJ重過
し感熱記録用紙に入射して初めて熱エネルギーとなる。(3) The laser beam from the laser diode blinks in an extremely short period of time, passes through the cut optical fiber several times, and becomes thermal energy only after it hits the thermosensitive recording paper.
従ってヘラl’ 自体(ファイバ一端)はほとんど発熱
せず、従来の抵抗発熱体ヘッドのようにその熱容計に応
じてON信号から発色温度までの外l晶、及びOF’信
号から不感温度までの低下に要する遅延がほとんど生じ
ない。すなわち、温度の立上シ及び立下りの速度か大き
い分だけ高速プリントが可能となる。Therefore, the spatula l' itself (one end of the fiber) generates almost no heat, and like a conventional resistance heating element head, the outer crystal heats up from the ON signal to the coloring temperature, and from the OF' signal to the dead temperature, depending on its heat capacity meter. There is almost no delay required for the reduction of In other words, high-speed printing is possible as the speed of temperature rise and fall is greater.
(4) 半導体レーザーの利点として直接変調(直接
ON −OF’F )を行うからレーザー発振器−外部
変調器からなるガスレーザーシステムよシ装置全体の小
型什が可能となる。、(4) An advantage of a semiconductor laser is that it performs direct modulation (direct ON-OF'F), so it is possible to downsize the entire device, such as a gas laser system consisting of a laser oscillator and an external modulator. ,
図は本発明の構成を示すブロック及び斜視図である。
(1)−〜−−−i>Q録紙送り機構
131−−−−一感勲記録用紙
+41−−−−−オプチカルファイバー(61−−−−
一スイッチンク付勢回路IJI 、D2−−−Dn −
−−ターf−タイオー )−特許出願人 神崎製紙株
式会社
代 理 人 新 実 鯰 部(外1名
)The figures are a block and perspective view showing the configuration of the present invention. (1) - - - - i > Q recording paper feed mechanism 131 - - - Ikkankun recording paper + 41 - - Optical fiber (61 - -
- Switch energizing circuit IJI, D2---Dn-
--Tarf-Taioh) --Patent applicant: Kanzaki Paper Co., Ltd. Agent: Niimi Namazube (1 other person)
Claims (2)
機構と、 前記給送路中における感熱記録用紙の幅方向に配列され
、先端を前記用紙の表面に対向せしめた複数本の赤外線
に適したオプチカルファイバーと、 前記オプチカルファイバーの他端にそれぞれ赤外線レー
ザービームを入射させるための複数のレーザーダイオー
ドとを備え、 前記複数のレーザーダイオードを選択的に励起すること
により前記感熱記録用紙に所望のプリントパターンを発
現させるようにしたことを特徴とする感熱プリンター。(1) A mechanism for feeding thermal recording paper along a predetermined feeding path, and a plurality of sheets arranged in the width direction of the thermal recording paper in the feeding path, with their tips facing the surface of the paper. An optical fiber suitable for infrared rays and a plurality of laser diodes for respectively injecting infrared laser beams into the other end of the optical fiber are provided, and by selectively exciting the plurality of laser diodes, the thermal recording paper is heated. A thermal printer characterized in that it is adapted to express a desired print pattern.
糸半導体からなることを特徴とする特許請求の範囲第山
頂記載の感熱プリンター。 +31 オプチカルファイバーがタリウム糸化合物を
含むファイバー成形体からなることを特徴とする特許請
求の範囲第(11項又は第(21項記載の感熱プリンタ
ー。(2) Laser diode is PBS thread or Pb5e
A thermal printer according to claim 1, characterized in that it is made of a thread semiconductor. +31 The thermal printer according to claim 11 or claim 21, wherein the optical fiber is made of a fiber molded body containing a thallium thread compound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57030989A JPS58148777A (en) | 1982-02-27 | 1982-02-27 | Heat-sensitive printer using laser diode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57030989A JPS58148777A (en) | 1982-02-27 | 1982-02-27 | Heat-sensitive printer using laser diode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58148777A true JPS58148777A (en) | 1983-09-03 |
Family
ID=12319024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57030989A Pending JPS58148777A (en) | 1982-02-27 | 1982-02-27 | Heat-sensitive printer using laser diode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58148777A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999021719A3 (en) * | 1997-10-25 | 1999-07-08 | Agfa Gevaert Ag | Method for inscribing thermographic material |
JP2014220538A (en) * | 2014-08-27 | 2014-11-20 | 株式会社東芝 | Semiconductor laser device |
US9407065B2 (en) | 2011-08-03 | 2016-08-02 | Kabushiki Kaisha Toshiba | Semiconductor laser |
WO2017135460A1 (en) * | 2016-02-05 | 2017-08-10 | 株式会社リコー | Image recording apparatus and image recording method |
WO2017135328A1 (en) * | 2016-02-05 | 2017-08-10 | 株式会社リコー | Image recording apparatus and image recording method |
CN108602356A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
CN108684201A (en) * | 2016-02-05 | 2018-10-19 | 株式会社理光 | Image recording structure and image recording process |
CN109689375A (en) * | 2016-07-08 | 2019-04-26 | 托卡诺控股有限公司 | With the improved permanent printing equipment of printing |
US10792932B2 (en) | 2016-02-05 | 2020-10-06 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
-
1982
- 1982-02-27 JP JP57030989A patent/JPS58148777A/en active Pending
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999021719A3 (en) * | 1997-10-25 | 1999-07-08 | Agfa Gevaert Ag | Method for inscribing thermographic material |
US9407065B2 (en) | 2011-08-03 | 2016-08-02 | Kabushiki Kaisha Toshiba | Semiconductor laser |
JP2014220538A (en) * | 2014-08-27 | 2014-11-20 | 株式会社東芝 | Semiconductor laser device |
CN108602355A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
WO2017135328A1 (en) * | 2016-02-05 | 2017-08-10 | 株式会社リコー | Image recording apparatus and image recording method |
JPWO2017135328A1 (en) * | 2016-02-05 | 2018-09-13 | 株式会社リコー | Image recording apparatus and image recording method |
WO2017135460A1 (en) * | 2016-02-05 | 2017-08-10 | 株式会社リコー | Image recording apparatus and image recording method |
CN108602356A (en) * | 2016-02-05 | 2018-09-28 | 株式会社理光 | Image recorder and image recording process |
CN108684201A (en) * | 2016-02-05 | 2018-10-19 | 株式会社理光 | Image recording structure and image recording process |
JPWO2017135460A1 (en) * | 2016-02-05 | 2018-11-01 | 株式会社リコー | Image recording apparatus and image recording method |
US10556446B2 (en) | 2016-02-05 | 2020-02-11 | Ricoh Company, Ltd. | Image recording device and image recording method |
US10589543B2 (en) | 2016-02-05 | 2020-03-17 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
US10792932B2 (en) | 2016-02-05 | 2020-10-06 | Ricoh Company, Ltd. | Image recording apparatus and image recording method |
CN109689375A (en) * | 2016-07-08 | 2019-04-26 | 托卡诺控股有限公司 | With the improved permanent printing equipment of printing |
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