JPS59179363A - Color thermal transfer recording method - Google Patents
Color thermal transfer recording methodInfo
- Publication number
- JPS59179363A JPS59179363A JP58057377A JP5737783A JPS59179363A JP S59179363 A JPS59179363 A JP S59179363A JP 58057377 A JP58057377 A JP 58057377A JP 5737783 A JP5737783 A JP 5737783A JP S59179363 A JPS59179363 A JP S59179363A
- Authority
- JP
- Japan
- Prior art keywords
- scanning direction
- heating resistor
- thermal transfer
- sub
- color
- 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
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors
Abstract
Description
【発明の詳細な説明】
この発明は、スリット状の発熱抵抗体を有するサーマル
ヘッドを使った熱転写カラープリンタ等に用いるカラー
熱転写記録方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color thermal transfer recording method used in a thermal transfer color printer or the like using a thermal head having a slit-shaped heating resistor.
第１図は、従来のインク熱転写記録の基本構成を示す。FIG. 1 shows the basic configuration of conventional ink thermal transfer recording.
ここで、（１）はコンデンサ紙等のベースフィルム、（
２）はワックスあるいは有機樹脂バインダと着色材とか
う成るソリッドインク層であり、この両者によりインク
シート（３）が構成されている。インクシー ト（３）
のベース紙（１）側にはサーマルヘッド（５）全ソリッ
ドインク層（２）側には普通紙（４）およびゴムローラ
（７）を各々配しである。Here, (1) is a base film such as capacitor paper, (
2) is a solid ink layer consisting of a wax or organic resin binder and a coloring material, and the ink sheet (3) is made up of both. Ink sheet (3)
A thermal head (5) is disposed on the base paper (1) side, and a plain paper (4) and a rubber roller (7) are disposed on the entire solid ink layer (2) side.
今、サーマルヘッド（５）の発熱抵抗体（６）を通電発
熱させると、インクシート（３）のベース紙（１１全通
してソリッドインク層（２）が加熱溶融され、溶融部分
（２ａ）が普通紙（４）上へ転写される。発熱抵抗体（
６）への印加電力（Ｗ／ドツト）あるいはパルス幅のい
ずれかを変えると原理的には溶融転写されるソリッドイ
ンク層（２ａ）の量が変化し、階調記録が可能なように
見える。Now, when the heating resistor (6) of the thermal head (5) is energized to generate heat, the solid ink layer (2) is heated and melted through the entire base paper (11) of the ink sheet (3), and the melted portion (2a) is Transferred onto plain paper (4). Heating resistor (
6) If either the applied power (W/dot) or the pulse width is changed, the amount of the solid ink layer (2a) to be melted and transferred changes in principle, and it appears that gradation recording is possible.
第２図は発熱抵抗体のサイズが８０Ｘ２００（μｍ〕２
の高速ファクシミリ用のサーマルヘッドの記録にょる印
加電力と光学反射濃度（０１））の関係を測定したもの
である。図中に、場所を変えて測定した１０ケ所のデー
タのバラツキの範囲を合せて示した。In Figure 2, the size of the heating resistor is 80 x 200 (μm) 2
The relationship between applied power and optical reflection density (01) during recording with a thermal head for high-speed facsimile is measured. The figure also shows the range of variation in data measured at 10 different locations.
なお、加熱電流パルス幅は２ｍ５ｅｃである。Note that the heating current pulse width was 2 m5ec.
第２図の結果よシ、従来のインクシートを使って中間の
濃度を記録するとＯＤのバラツキが極めて大きいのがわ
かる。このため、溶融転写を行うインクシートでは画素
の濃度を変化させるタイプの階調画像を安定に記録でき
ないという欠点があつｔこ。From the results shown in Figure 2, it can be seen that when medium density is recorded using a conventional ink sheet, the OD variation is extremely large. For this reason, ink sheets that perform melt transfer have the disadvantage that they cannot stably record gradation images that change the density of pixels.
この発明は、上記のような従来のものの欠点を除去する
ためになされたもので、細長いスリット状の発熱抵抗体
列を有するサーマルヘッドを用いたカラー熱転写記録方
法を提供することを目的としている。The present invention was made to eliminate the above-mentioned drawbacks of the conventional method, and an object of the present invention is to provide a color thermal transfer recording method using a thermal head having an array of heating resistors in the form of elongated slits.
以下この発明の一実施例を図に基づいて詳細に説明する
。An embodiment of the present invention will be described in detail below with reference to the drawings.
第８図は）この発明に使うサーマルヘッドの発熱抵抗体
部構造例を示す０図に於て、（６）は発熱抵抗体を示し
〜主走査方向に一列にピッチＰ１で並んている。発熱抵
抗体（６）の副走査方向の幅はピッチＰ１に比べて小さ
なＰ２／４にこの例では選んでいる。FIG. 8) In FIG. 0 showing an example of the structure of the heat generating resistor portion of the thermal head used in the present invention, (6) indicates the heat generating resistors which are arranged in a line in the main scanning direction at a pitch P1. In this example, the width of the heating resistor (6) in the sub-scanning direction is selected to be P2/4, which is smaller than the pitch P1.
Ｐ２は階調を表現する単位画素の副走査方向のピッチで
ある。一般にはＰ１＝ １）２に選び、発熱抵抗体（６
）の幅はＰ２７ｍ （ｍ＞ ２ ）とする。（８）は共
通電極、（９）は個々の発熱抵抗体（６）に通電するた
めの個別電極である。P2 is the pitch in the sub-scanning direction of unit pixels expressing gradation. Generally, P1=1)2 is selected, and the heating resistor (6
) has a width of P27m (m>2). (8) is a common electrode, and (9) is an individual electrode for supplying current to each heating resistor (6).
第４図はこの発明のカラー化のための階調記録の基本原
理を示したものである。階調を表現するための単位画素
の大きさをＰ、 Ｘ Ｐ、とすると、第８図の形状の発
熱抵抗体く６）へ通電し、インクシートから普通紙へソ
リッドインク層を熱転写すると１回の転写で第４図（１
）に示したようなスリット状の微小画素が形成される。FIG. 4 shows the basic principle of gradation recording for colorization according to the present invention. Assuming that the size of a unit pixel for expressing a gradation is P, Figure 4 (1
) A slit-shaped micropixel as shown in () is formed.
読いてＰ２／４ピッチづつ普通紙を移動させながら、２
回、３回、４回と同一の動作を繰シ返すと第４図（２）
、 （ａ） 、 （４）に示した様な転写面積率の変
化した多階調画素を形成できる。この例ではＯを含めて
合計５階調の階調を得ているが、副走査方向の送シ量Ｐ
／ｍおよび微小画素を形成する第８図のサーマルヘッド
の発熱抵抗体の副走査方向の幅を所定の値に選ぶことに
より、更に多くの階調を持つ単位画素を形成することが
できる。While reading and moving the plain paper by P2/4 pitch,
If you repeat the same action three times, three times, and four times, Figure 4 (2)
, (a), and (4), multi-gradation pixels with varying transfer area ratios can be formed. In this example, a total of 5 gradations including O are obtained, but the feed amount in the sub-scanning direction is P.
By selecting /m and the width in the sub-scanning direction of the heating resistor of the thermal head shown in FIG. 8 that forms the micropixel to predetermined values, it is possible to form a unit pixel having even more gradations.
以上のように形成される階調性を有する単位画素により
、第１図に示した従来の熱転写記録の基本原理によシ、
イエロー（Ｙ）、マゼンタ（Ｍ） 、シアン（ｑの各々
の画面について、８度面順次に熱転写スルコとにより階
調を有するフルカラーに近い画像の形成が可能になるも
のである。この方法では、従来の方法のように中間調を
記録するために、サーマルヘッドの記録電力を下げる必
要がなく常に高電力条件で動作させるために得られる画
質が均一になるという利点を有している。この方法の実
施にあたっては次のように多くの変化が可能である。By using the unit pixels with gradation formed as described above, the basic principle of conventional thermal transfer recording shown in FIG.
For each screen of yellow (Y), magenta (M), and cyan (q), it is possible to form a nearly full-color image with gradation by sequentially thermally transferring the 8-degree plane. With this method, Unlike the conventional method, there is no need to lower the recording power of the thermal head to record halftones, and the advantage is that the image quality obtained is uniform because it is always operated under high power conditions. Many variations in implementation are possible, including:
第５図は１／４の階調パターンを単位画素内の微小画素
の座標を変えて記録した例を示す。ここで、（ａ） Ｉ
ｔｉ第１第１目調目小画素を全て同一位置に出現させた
もの、（ｂ）は副走査方向にＰＶ／２だけ主走査方向に
隣接する微小画素をずらせたものを各々示す。FIG. 5 shows an example in which a 1/4 tone pattern is recorded by changing the coordinates of minute pixels within a unit pixel. Here, (a) I
(b) shows a case in which all the small pixels of the ti-1 first scale appear at the same position, and (b) shows a case in which adjacent small pixels in the main scanning direction are shifted by PV/2 in the sub-scanning direction.
この例のように、主走査方向に長袖を有するこの発明の
方法では、微小画素が主走査方向に一列に並ばないよう
にすることが重要である。As in this example, in the method of the present invention having long sleeves in the main scanning direction, it is important to prevent the minute pixels from lining up in a line in the main scanning direction.
又、画像の階調数を更に増大させるためには、ディザ法
あるいは濃度パターン法等の擬似的階調表現法を併用す
る。今％ ＭｘＮケの単位画素を新たな階調表現単位と
する場合を考えると、単位画素が（ｍ＋１）値の濃度レ
ベルを有する場合には（ｍＸＭＸＮ＋１）階調の階調表
現能力を持たせることができる。In order to further increase the number of gradations in an image, a pseudo gradation expression method such as a dither method or a density pattern method is also used. Now% Considering the case where MxN unit pixels are used as a new gradation expression unit, if the unit pixel has a density level of (m+1) values, it should have the gradation expression ability of (mXMXN+1) gradations. Can be done.
又、以上の実施例ではＹ、Ｍ、Ｃの８原色を塗布したイ
ンクシートについてのみ説明したが、従来より印刷等で
行なわれているように黒を入れた４色のインクシートを
使うものにも同様に適用できる。In addition, in the above embodiments, only the ink sheets coated with the eight primary colors of Y, M, and C were explained, but it is also possible to use ink sheets of four colors including black, as is conventionally done in printing etc. can be similarly applied.
又、単色のインクシートを使って階調記録を行なう用途
にも使える。更には予め濃度レベルの異なる同一色調の
単色あるいは被数色のソリッドインクを塗布し、階調レ
ベルによシ使用するインクシートの濃度を変えることに
より、更に得られる階調数を増加させることができる。It can also be used for gradation recording using a single color ink sheet. Furthermore, the number of gradations that can be obtained can be further increased by applying solid ink of a single color or a number of colors of the same tone with different density levels in advance and changing the density of the ink sheet used depending on the gradation level. can.
以上詳述したように、この発明の方法によれば階調記録
を記録印加電力を低下させることなく行なえるので安定
にフルカラー記録を行なえるという利点を有するもので
ある。As described above in detail, the method of the present invention has the advantage that gradation recording can be performed without reducing the recording power, and full-color recording can be performed stably.
第１図は従来のインク熱転写記録の基本構成を示す説明
図、第２図は従来の方法にょる印加電力と光学濃度の関
係を示したグラフ、第８図はこの発明に使うサーマルヘ
ッドの発熱抵抗体部の構造例を示す説明図、第４図はこ
の発明のカラー化のための階調記録の基本原理を示す説
明図、第５図はこの発明の方法による階調記録のパター
ン例を示す説明図である。
（１）・・・ベースフィルム、（２）・・・ソリッドイ
ンク層、（３）・インクシート、（４）・・・Ｉｎ紙、
（５＋・・・サーマルヘッド、（６）・・・発熱抵抗体
、（７）・・・ゴムローラ、（８）・・・共通電極、（
９）・・・個別電極。
尚、図中同一符号は夫々間−又は和尚部分を示す。
代理人 葛野信−
第３図
１走ゑ方旬
閏
第４１に
第す図
（０）
乃
金 ４
７７コ 口２コ ［Ｚコ
［２７７１口ｌコ 口＝コ
□ 四コ ロ二
四二 Ｉ２７２１ 口＝Figure 1 is an explanatory diagram showing the basic configuration of conventional ink thermal transfer recording, Figure 2 is a graph showing the relationship between applied power and optical density in the conventional method, and Figure 8 is the heat generated by the thermal head used in this invention. FIG. 4 is an explanatory diagram showing an example of the structure of a resistor section, FIG. 4 is an explanatory diagram showing the basic principle of gradation recording for colorization according to the present invention, and FIG. FIG. (1) Base film, (2) Solid ink layer, (3) Ink sheet, (4) In paper,
(5+...Thermal head, (6)...Heating resistor, (7)...Rubber roller, (8)...Common electrode, (
9)...Individual electrode. In addition, the same reference numerals in the drawings indicate the between- and Osho parts, respectively. Agent Makoto Kuzuno - Fig. 3 1 Run ゑ direction Shunkin No. 41 (0) Nogane 4 77 ko Kuchi 2 ko [Z ko [2771 kuchi lko 口 = ko □ 4 koro 242 I2721 Mouth=
Claims (3)
から成る発熱抵抗体列を設け、その発熱抵抗体の央効的
な発熱部の形状が発熱抵抗体の列（王走食）方向のピッ
チＰ１に比べ、主走査方向と垂直な方向（副走査方向）
の発熱抵抗体の幅が１７’ｎ（ｎ＞２）以下のサーマル
ヘッドを使い、ベースフィルム上に面順次にイエロ、マ
ゼンタおよびマゼンタの少くとも３原色を含んだ熱転写
性を有するソリッドインクＭあるいは濃度レベルの異な
る単色あるいは複数色のソリッドインク層を塗布したカ
ラーインクシートよシ被転写記録媒体上に時間順次に熱
転写する装置において、上記サーマルヘッドノ発熱抵抗
体への一回分の通電により約（Ｐｌ）ｘ−・Ｐ２）の微
小画素が熱転写され、Ｐ１×Ｐ２の単位画素がソリッド
インク層の熱転写面積によシ表現される最大（ｍ＋１）
値の濃度レベルを有するようにしだカラー熱転写記録方
法〇(1) A heating resistor row consisting of a plurality of heating resistors arranged on an insulating substrate is provided, and the shape of the central effective heating part of the heating resistor is ) direction perpendicular to the main scanning direction (sub-scanning direction)
Using a thermal head with a heating resistor width of 17'n (n > 2) or less, a solid ink M or a thermally transferable solid ink containing at least three primary colors of yellow, magenta, and magenta is applied surface-sequentially onto the base film. In a device that thermally transfers a color ink sheet coated with solid ink layers of a single color or multiple colors with different density levels onto a recording medium in time sequence, approximately ( Pl)x-・P2) minute pixels are thermally transferred, and the maximum (m+1) unit pixel of P1×P2 is expressed by the thermal transfer area of the solid ink layer.
Color thermal transfer recording method to have a density level of value
素内の微小画素の出現する副走査方向の座標を異なるよ
うに選んだことを特徴とする特許請求の範囲第１項に記
載のカラー熱転写記録方法。(2) Coordinates in the sub-scanning direction at which micropixels in adjacent unit pixels in the main-scanning direction that express the same gradation appear are selected to be different. Color thermal transfer recording method.
ための単位とし、最大（ｍＸ ｎ ＸＭ＋１ ）階調の
階調表現力を持たせｔコことを特徴とする特許請求の範
囲第１項又は第２項記載のカラー熱転写記録方法。(3) The first aspect of the present invention is characterized in that NXM unit pixels are used as a unit for expressing all new intermediate tones, and have a gradation expressive power of a maximum of (mX n XM+1) gradations. The color thermal transfer recording method according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58057377A JPS59179363A (en) | 1983-03-30 | 1983-03-30 | Color thermal transfer recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58057377A JPS59179363A (en) | 1983-03-30 | 1983-03-30 | Color thermal transfer recording method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59179363A true JPS59179363A (en) | 1984-10-11 |
Family
ID=13053902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58057377A Pending JPS59179363A (en) | 1983-03-30 | 1983-03-30 | Color thermal transfer recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59179363A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884080A (en) * | 1985-01-31 | 1989-11-28 | Kabushiki Kaisha Toshiba | Color image printing apparatus |
| US4890121A (en) * | 1985-01-31 | 1989-12-26 | Kabushiki Kaisha Toshiba | Halftone image printing device |
| US5099259A (en) * | 1985-01-31 | 1992-03-24 | Kabushiki Kaisha Toshiba | Halftone image printing device |
| JPH04220359A (en) * | 1990-12-21 | 1992-08-11 | Fuji Photo Film Co Ltd | Color thermal printer |
-
1983
- 1983-03-30 JP JP58057377A patent/JPS59179363A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884080A (en) * | 1985-01-31 | 1989-11-28 | Kabushiki Kaisha Toshiba | Color image printing apparatus |
| US4890121A (en) * | 1985-01-31 | 1989-12-26 | Kabushiki Kaisha Toshiba | Halftone image printing device |
| US5099259A (en) * | 1985-01-31 | 1992-03-24 | Kabushiki Kaisha Toshiba | Halftone image printing device |
| JPH04220359A (en) * | 1990-12-21 | 1992-08-11 | Fuji Photo Film Co Ltd | Color thermal printer |
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