JPH06418B2 - Laser printing device - Google Patents
Laser printing deviceInfo
- Publication number
- JPH06418B2 JPH06418B2 JP58054016A JP5401683A JPH06418B2 JP H06418 B2 JPH06418 B2 JP H06418B2 JP 58054016 A JP58054016 A JP 58054016A JP 5401683 A JP5401683 A JP 5401683A JP H06418 B2 JPH06418 B2 JP H06418B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- heat
- transfer
- laser
- laser light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
- B41J2/48—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 melting ink on a film or melting ink granules
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dot-Matrix Printers And Others (AREA)
- Electronic Switches (AREA)
- Laser Beam Printer (AREA)
Description
【発明の詳細な説明】 技術分野 本発明は、光吸収性の感熱転写紙にレーザー光を走査し
てプリントする保守が容易な簡易型レーザー・プリント
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easy-to-maintain simple laser printing apparatus which scans a light-absorbing heat-sensitive transfer paper with a laser beam for printing.
従来技術 従来のレーザー・プリント装置は、電子写真方式を用い
て、感光体の光導電性を利用し、静電画像をトナーで現
像、定着する手段が用いられ、特にその高速性と高解像
性の良好な点から、高精細像を要する漢字、かな文字プ
リント装置として商品化されている。2. Description of the Related Art A conventional laser printing apparatus uses electrophotography to utilize the photoconductivity of a photoconductor to develop and fix an electrostatic image with toner. In particular, its high speed and high resolution are used. It has been commercialized as a kanji and kana character printing device that requires a high-definition image because of its good properties.
しかしながら、上記プリント装置は電子写真方式を用い
ているため、特に高湿度下でのトナー現像の不安定性、
トナーによる用紙の地汚れ、さらには長時間の繰返し使
用の際の特性の不安定性等の、その方式から生じる本質
的な欠点を有するため、定期的な保守が必須要件とな
り、装置コストの高価なことと相俟って、簡易型プリン
ト装置としての普及を妨げる要因となっていた。However, since the printing apparatus uses an electrophotographic method, instability of toner development especially under high humidity,
Since it has essential defects such as soiling of paper due to toner, and instability of characteristics when it is repeatedly used for a long time, regular maintenance becomes an essential requirement, and equipment cost is high. Combined with this, it was a factor that hindered its widespread use as a simple printing device.
目的 本発明は、電子写真方式を用いることに基くこれらの欠
点を改善するために開発されたものであって、感熱転写
方式を採用することにより高い環境安定性を確保し、ま
た、地汚れがなく、プリントの繰返し安定性を保持し、
保守は感熱転写紙の交換だけで済むところの、安定性に
優れしかも保守の容易なレーザー・プリント装置を提供
することを目的とする。OBJECT The present invention was developed to improve these drawbacks based on the use of an electrophotographic system, and by adopting a thermal transfer system, high environmental stability is ensured, and scumming is reduced. Maintain print repeatability,
It is an object of the present invention to provide a laser printing apparatus which is excellent in stability and easy to maintain, since maintenance can be performed only by replacing the thermal transfer paper.
即ち、プリント装置の構成に創意を加えることによっ
て、従来装置を大巾に単純化することに成功し、安価で
安定性の良い簡易型レーザー・プリント装置を完成させ
たものである。In other words, by adding ingenuity to the structure of the printing apparatus, the conventional apparatus has been greatly simplified, and an inexpensive and stable simple laser printing apparatus has been completed.
構成 本発明は、レーザー光透過性の高い材質より成るドラム
の内側に偏向可能なレーザー光源を配置して、レーザー
光を主走査に同期してドラム内面を走査させると共に、
レーザー光吸収性のある感熱転写紙と被転写シートとを
重ね合わせて、前記ドラムとこれに外接する断熱性弾性
体からなるローラとの間に挟持されつつ副走査方向に走
行させ、該ドラムと該ローラとの圧接部分にレーザー光
をより照射し、レーザー光の熱により被転写シートに感
熱転写紙上のインキを転写するようにしたレーザー・プ
リント装置であって、今、その一実施例を第１図を用い
て詳述すると以下のとおりである。Configuration The present invention, a deflectable laser light source is disposed inside a drum made of a material having high laser beam transparency, and the inner surface of the drum is scanned in synchronization with the main scanning of the laser beam,
A heat-sensitive transfer paper having a laser beam absorbing property and a transfer target sheet are superposed on each other, and run in the sub-scanning direction while being sandwiched between the drum and a roller made of a heat insulating elastic body circumscribing the drum, and A laser printing apparatus, in which a laser beam is further radiated to a pressure contact portion with the roller, and the ink on the heat-sensitive transfer paper is transferred to a transfer target sheet by the heat of the laser beam. The detailed description is given below with reference to FIG.
レーザー光源１から、前記レーザー光を透過する材質に
より形成されたドラム４の内側にレーザー光を入射さ
せ、前記ドラムの内側に配置した偏向器３でドラム４の
内側円筒面を、母線方向に走査し、その光の強度は光変
調器２で変調する。即ち、前記レーザー光に情報をのせ
て主走査させる。走査光は、ドラムの円筒面を透過し、
光吸収性の感熱転写紙６に吸収されて熱に変換し、転写
層９を溶融して、被転写シート７に転写、記録する。こ
の転写作用を効率よく行わせるために、レーザー光の主
走査位置に対応するドラム４外周に接して断熱性材質よ
りなるローラ５を配置し、密着を充分に行わせることが
品質の安定化に不可欠である。From the laser light source 1, laser light is made incident on the inside of a drum 4 formed of a material that transmits the laser light, and the deflector 3 arranged inside the drum scans the inner cylindrical surface of the drum 4 in the generatrix direction. Then, the intensity of the light is modulated by the optical modulator 2. That is, information is placed on the laser beam for main scanning. Scanning light passes through the cylindrical surface of the drum,
It is absorbed by the light-absorbing heat-sensitive transfer paper 6 and converted into heat, the transfer layer 9 is melted, and transferred and recorded on the transfer sheet 7. In order to efficiently perform this transfer action, it is necessary to dispose a roller 5 made of a heat insulating material in contact with the outer periphery of the drum 4 corresponding to the main scanning position of the laser light so as to perform sufficient contact for stabilizing the quality. It is essential.
上記、レーザー光源としては、Ar，He-Ne，He-Cd，ＣＯ
２、半導体レーザー等があり、簡易型用途にはHe-Ne、
半導体レーザー等が使い易い。As the laser light source, Ar, He-Ne, He-Cd, CO
2. There are semiconductor lasers, etc., and He-Ne, and
Easy to use semiconductor laser.
光変調器２は、ＡＯＭ、ＰＬＺＴ、液晶等の電気光学素
子のアナログ型、デジタル型のいずれのものも仕様でき
るが、消光比は低くても転写紙が一般に、急峻な溶解特
性を持っているのでシャープな画像が得られるため、安
価なもので充分な機能が出せる。また、速度を望まなけ
れば、ボイスコイルでの振動による光路の遮断、解放
や、シャッター等の機械式のものも使用することができ
る。The optical modulator 2 can be either an analog type or a digital type of an electro-optical element such as AOM, PLZT, liquid crystal, etc. However, the transfer paper generally has a sharp melting characteristic even if the extinction ratio is low. Therefore, a sharp image can be obtained, and an inexpensive one can provide sufficient functions. Further, if speed is not desired, a mechanical type such as a shutter or the like that blocks or releases the optical path due to vibration in the voice coil can be used.
偏向器３としては、単なる鏡をドラム４の回転軸に対し
て平行移動させるか、ドラム４の前記軸に平行な方向に
複数面体のポリゴン回転ミラーを用いてドラム内周面
を、その母線方向に主走査させる方法とが適している。As the deflector 3, a simple mirror is moved in parallel with the rotation axis of the drum 4, or a polygon rotating mirror of a polyhedron is used in a direction parallel to the axis of the drum 4, and the inner peripheral surface of the drum is moved in the generatrix direction. The method of performing the main scanning in is suitable.
透光性材質からなるドラム４は、実質的にレーザー光を
透過し、しかも充分な機械的強度を有するもので、その
材質としては、石英ガラス、ソーダガラス等の各種ガラ
スおよびセラミックまたはアクリル系、メタクリル系、
ポリカーボネート系、ポリエステル系、ポリアミド係、
フッ素系、ポリスチレン系、ポリ塩化ビニル系等の樹脂
やそれらの共重合体が用いられる。The drum 4 made of a translucent material is substantially transparent to laser light and has sufficient mechanical strength. Examples of the material include various kinds of glass such as quartz glass and soda glass, and ceramics or acrylic materials. Methacrylic,
Polycarbonate type, polyester type, polyamide type,
Fluorine-based, polystyrene-based, polyvinyl chloride-based resins and their copolymers are used.
上記のドラムはまた、耐磨耗性を要求されるため、表面
ないし全体を多官能基を有する材料に熱、光、電子線ま
たは放射線等を用いて架橋、重合させて硬度を持たせる
ことも有効である。Since the above-mentioned drum is required to have abrasion resistance, it may be hardened by crosslinking or polymerizing the surface or the whole with a material having a polyfunctional group by using heat, light, electron beam or radiation. It is valid.
感熱転写紙６および被転写シート７をドラム４周面に圧
着させるためにローラ５は、プラスチック、ゴム等の材
質を用い得るが、その圧着面は弾性体であり、さらに感
熱転写紙６に加えられた熱エネルギーが不必要に外部に
逃げないよう断熱性があるものを用いる。その材質を列
挙すれば、生ゴム、シリコンゴム、塩化ゴム、環下ゴ
ム、ポリエステルゴム、ウレタンゴム等の材料に、カー
ボン、シリカ、クレイ、ガラス粉末等の充填剤を混入し
たもの、さらに好ましくは中空バルーン等の含気性充填
剤を加えることである。また、ポリエチレン、ウレタン
樹脂等の発泡体を用いることが断熱効果を高める上で有
効である。In order to press the heat-sensitive transfer paper 6 and the transfer-receiving sheet 7 onto the peripheral surface of the drum 4, a material such as plastic or rubber can be used for the roller 5, but the press-contact surface is an elastic body, and in addition to the heat-sensitive transfer paper 6, A heat insulating material is used so that the generated heat energy does not unnecessarily escape to the outside. To list the materials, raw rubber, silicone rubber, chlorinated rubber, under ring rubber, polyester rubber, urethane rubber, and other materials mixed with fillers such as carbon, silica, clay, and glass powder, and more preferably hollow This is to add an aerated filler such as a balloon. Further, it is effective to use a foam such as polyethylene or urethane resin in order to enhance the heat insulating effect.
本装置に使用する感熱転写紙６は、第２図断面図に示す
ように、ワックス、高級アルコール、高級アルコールエ
ステル、ジイソシアネートとアルコールまたはアミンあ
るいはカルボン酸との反応生成物等の、融解して低粘性
化する主剤に、柔軟剤その他の転写補助剤を混合し、こ
れを染料または顔料で着色したものを、コンデンサ紙や
ポリエステルシート等の薄い基材シート８に塗着し、転
写層９を形成したものが用いられる。しかし、これがレ
ーザー光の波長吸収性を持たない場合は、前記転写層９
の色相を変えない範囲で光吸収剤を混合するか、または
基材シート８上に、転写しない光吸収層を設けるか、あ
るいは基材シート８それ自体を着色しておくことによっ
て光を吸収し、熱に変換する方法を用いることができ
る。レーザー光のエネルギーとしては、転写層材料や膜
厚、被転写シート７の熱容量等によって異るが、およそ
0.01ないし10.0mJ／cm2程度のエネルギーを必要とする
ものとみられる。As shown in the sectional view of FIG. 2, the heat-sensitive transfer paper 6 used in the present apparatus is a low-melting material such as a reaction product of wax, higher alcohol, higher alcohol ester, diisocyanate and alcohol or amine or carboxylic acid. A softening agent or other transfer auxiliary agent is mixed with a viscous main agent, which is colored with a dye or a pigment, and the thin base sheet 8 such as a condenser paper or a polyester sheet is coated to form a transfer layer 9. What is done is used. However, when this does not have a laser beam wavelength absorption property, the transfer layer 9
The light absorbing agent is mixed within a range that does not change the hue, or a light absorbing layer that does not transfer is provided on the base sheet 8, or the base sheet 8 itself is colored to absorb light. The method of converting into heat can be used. The energy of the laser beam varies depending on the transfer layer material, the film thickness, the heat capacity of the transferred sheet 7, etc.
It seems that energy of 0.01 to 10.0 mJ / cm 2 is required.
被転写シート７としては、材質上特に制約はないが、表
面が平滑であって可撓性を有するシートが好ましく、
紙、フィルム等の他に金属板、箔等が用いられる。The transfer target sheet 7 is not particularly limited in terms of material, but a sheet having a smooth surface and flexibility is preferable,
In addition to paper, films, etc., metal plates, foils, etc. are used.
上述の各構成部材からなるレーザー・プリント装置は、
以下に述べるように作動する。The laser printing device consisting of the above-mentioned components is
It operates as described below.
感熱転写紙６の転写層９と被転写シー７とを重ね合わせ
て、感熱転写紙側をドラム４周面に沿わせ、圧接ローラ
５との間に挟み、両ローラを所定の回転数で回転し、転
写紙等を圧接させながら副走査方向に移送する。一方、
レーザー光源１から投射されるレーザー光は、変調器２
により情報に基いて変調され、ドラム４内の偏向器３に
当って、ドラム４とローラ５との接触線に沿ってドラム
内周面を主走査する。ドラム４円筒材を透過したレーザ
ー光は感熱転写紙６に当り、その転写層９を情報に応じ
て加熱するので、同層は色素を伴なって被転写シート７
表面に蒸着し、レーザー光の主走査方向に情報に応じた
濃淡を被転写シートに施すことができる。このような走
査を繰返して被転写シートを副走査方向に移送するに従
って情報に応じた画像をシート７上に転写できるものと
なる。The transfer layer 9 of the thermal transfer paper 6 and the transferred sheet 7 are superposed, the thermal transfer paper side is placed along the peripheral surface of the drum 4, and is sandwiched between the pressure contact roller 5 and both rollers are rotated at a predetermined rotational speed. Then, the transfer paper or the like is moved in the sub-scanning direction while being pressed against it. on the other hand,
The laser light projected from the laser light source 1 is modulated by the modulator 2
Is modulated on the basis of information, hits the deflector 3 in the drum 4, and main-scans the inner peripheral surface of the drum along the contact line between the drum 4 and the roller 5. The laser light transmitted through the cylindrical member of the drum 4 hits the heat-sensitive transfer paper 6 and heats the transfer layer 9 according to the information, so that the transfer layer 9 is accompanied by the dye in the layer.
It is possible to vapor-deposit on the surface and to apply light and shade to the transfer sheet according to information in the main scanning direction of the laser light. By repeating such scanning and transferring the transfer target sheet in the sub-scanning direction, an image corresponding to information can be transferred onto the sheet 7.
レーザー光は充分に集束することができるから転写画像
の画質の良否は、機械的精度を除けば感熱転写紙と被転
写シートとの密着度に関係する。本装置にあっては、転
写層９と被転写シート７とが、ドラム４周面とローラ５
との間に挟着され、その部分をレーザー光で走査するよ
うにしてあるから、高精細転写画像を得る条件には事欠
かない。また、当該走査部の被転写シートの裏面はロー
ラ面により遮られているから、レーザー光によるエネル
ギーを充分に利用することができ、レーザー装置を小出
力のものとすることが可能である。Since the laser light can be sufficiently focused, the quality of the transferred image depends on the degree of adhesion between the heat-sensitive transfer paper and the transfer target sheet except for mechanical accuracy. In this apparatus, the transfer layer 9 and the transfer-receiving sheet 7 are provided on the drum 4 peripheral surface and the roller 5
Since it is sandwiched between and, and the portion is scanned with laser light, there is no shortage of conditions for obtaining a high-definition transferred image. Further, since the back surface of the sheet to be transferred in the scanning portion is blocked by the roller surface, the energy of the laser light can be fully utilized and the laser device can be made to have a small output.
効果 本発明によれば、断熱性弾性体からなるローラとレーザ
ー光透過性のドラム外面との間に挟持された感熱転写紙
と被転写シートとの圧着部分に、該ドラム内面よりレー
ザー光が照射されるため、該感熱転写紙と被転写シート
との密着性、熱転写効率の改善を図ることができるの
で、レーザー光のエネルギーを有効に利用でき、高解像
度、高濃度の印字が可能となる。その上、感熱転写紙の
色料を変えることによって、たとえば、シアン、マゼン
タ、イエロ、ブラックの転写紙を順次施すことによって
フルカラーの画像形成も容易に行える利点があり、現在
進行しつつある情報化社会の要求に充分対応した、保守
が容易で簡単なレーザー・プリント装置を提供すること
ができる。Effect According to the present invention, a laser beam is irradiated from the inner surface of the drum to the pressure-bonded portion of the heat-sensitive transfer paper and the transfer sheet sandwiched between the roller made of a heat insulating elastic body and the outer surface of the laser-transmissive drum. Therefore, the adhesion between the heat-sensitive transfer paper and the transfer-receiving sheet and the heat transfer efficiency can be improved, so that the energy of the laser beam can be effectively utilized, and high-resolution and high-density printing can be performed. In addition, there is an advantage that full-color image formation can be easily performed by changing the color material of the thermal transfer paper, for example, by sequentially applying the transfer papers of cyan, magenta, yellow and black. It is possible to provide a laser printing device that is easy to maintain and simple enough to meet the needs of society.
第１図は、本発明レーザー・プリント装置のシステムの
概要斜視図で、第２図は本発明装置に使用する感熱転写
紙の模式的断面図を示す。 １…レーザー光源、２…光変調器、３…偏向器、４…ド
ラム、５…ローラ、６…感熱転写紙、７…被転写シー
ト、９…転写層。FIG. 1 is a schematic perspective view of the system of the laser printing apparatus of the present invention, and FIG. 2 is a schematic sectional view of a heat-sensitive transfer paper used in the apparatus of the present invention. DESCRIPTION OF SYMBOLS 1 ... Laser light source, 2 ... Optical modulator, 3 ... Deflector, 4 ... Drum, 5 ... Roller, 6 ... Thermal transfer paper, 7 ... Transferred sheet, 9 ... Transfer layer.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 8907−2Ｃ Ｂ４１Ｊ 3/20 １１７ Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location 8907-2C B41J 3/20 117 A
Claims (1)
ムの内側に偏光可能なレーザー光源を配置して、レーザ
ー光を主走査に同期してドラム内面を走査させるととも
に、前記レーザー光吸収性のある感熱転写紙と被転写シ
ートとを重ね合わせて前記ドラムとこれに外接する断熱
性弾性体からなるローラとの間に挟持させつつ副走査方
向に走行させ、該ドラムと該ローラとの圧接部分にレー
ザー光をドラム内面より照射し、レーザー光の熱により
被転写シートに感熱転写紙上のインキを転写するように
したレーザー・プリント装置。1. A laser light source capable of polarization is arranged inside a drum made of a material having high laser light transmitting property to scan the inner surface of the drum in synchronization with the main scanning of the laser light, A heat-sensitive transfer paper and a transfer-target sheet are superposed and sandwiched between the drum and a roller made of a heat-insulating elastic body circumscribing the drum and run in the sub-scanning direction, and a pressure contact portion between the drum and the roller A laser printing device that irradiates a laser beam from the inner surface of the drum to transfer the ink on the thermal transfer paper to the transfer sheet by the heat of the laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58054016A JPH06418B2 (en) | 1983-03-31 | 1983-03-31 | Laser printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58054016A JPH06418B2 (en) | 1983-03-31 | 1983-03-31 | Laser printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59179355A JPS59179355A (en) | 1984-10-11 |
| JPH06418B2 true JPH06418B2 (en) | 1994-01-05 |
Family
ID=12958782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58054016A Expired - Lifetime JPH06418B2 (en) | 1983-03-31 | 1983-03-31 | Laser printing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06418B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5841464A (en) * | 1995-10-25 | 1998-11-24 | Gerber Scientific Products, Inc. | Apparatus and method for making graphic products by laser thermal transfer |
| CN107685549A (en) * | 2017-09-21 | 2018-02-13 | 厦门盈趣科技股份有限公司 | A kind of laser thermal printer and its control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55126479A (en) * | 1979-03-23 | 1980-09-30 | Fujitsu Ltd | Printing method |
| JPS5618952U (en) * | 1979-07-20 | 1981-02-19 | ||
| JPS5669444U (en) * | 1979-11-02 | 1981-06-09 |
-
1983
- 1983-03-31 JP JP58054016A patent/JPH06418B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59179355A (en) | 1984-10-11 |
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