JPH0428569A - Melt type thermal transfer recording method - Google Patents
Melt type thermal transfer recording methodInfo
- Publication number
- JPH0428569A JPH0428569A JP2134345A JP13434590A JPH0428569A JP H0428569 A JPH0428569 A JP H0428569A JP 2134345 A JP2134345 A JP 2134345A JP 13434590 A JP13434590 A JP 13434590A JP H0428569 A JPH0428569 A JP H0428569A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- recording paper
- pixel
- thermal head
- pixels
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 7
- 239000000976 ink Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001454 recorded image Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Electronic Switches (AREA)
- Dot-Matrix Printers And Others (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ビデオ画像等の画像をハードコピーするビデ
オプリンタ等に用いられ、熱溶融したインクを記録紙に
転写することによって中間調画像を記録する溶融型熱転
写記録方法に関するものである。Detailed Description of the Invention [Industrial Field of Application] The present invention is used in video printers that make hard copies of images such as video images, and creates halftone images by transferring hot melted ink onto recording paper. The present invention relates to a melt-type thermal transfer recording method for recording.
熱転写記録方式には、インクフィルムの背後から加熱し
て熱溶融又は軟化したインクを普通紙に転写する熱溶融
型転写記録方式と、インクを記録紙の受像層に熱拡散さ
せる昇華型転写記録方式とがある。熱溶融型転写記録方
式は、インクを転写するものであるから、文字や線画等
の二値画像の記録に適し、そして昇華型転写記録方式は
熱エネルギーに応じて熱拡散の度合いが変化するため、
中間調画像の記録に適している。Thermal transfer recording methods include a heat-melting transfer recording method that heats the ink film from behind and transfers the thermally melted or softened ink onto plain paper, and a sublimation transfer recording method that thermally diffuses the ink to the image-receiving layer of the recording paper. There is. The heat-melting transfer recording method transfers ink, so it is suitable for recording binary images such as characters and line drawings, and the sublimation transfer recording method changes the degree of thermal diffusion depending on the thermal energy. ,
Suitable for recording halftone images.
このように熱溶融型転写記録方式は二値画像の記録に適
しているが、サーマルヘッドの熱履歴による尾びき現象
が少ない、記録画像の経時変化が少ない、カラー化が容
易である等の利点がある。As described above, the heat-melting transfer recording method is suitable for recording binary images, but its advantages include less tailing due to the thermal history of the thermal head, less change in recorded images over time, and ease of colorization. There is.
この利点に着目し、本出願人は主走査方向に細長な発熱
素子を用い、画素濃度に応じて副走査方向（記録紙の搬
送方向）にドツトの記録長さを変えることによって、高
階調の中間調画像を記録することができるように改良し
た熱溶融型転写記録方式を提案した（例えば特願平２−
１５８８６号）。Focusing on this advantage, the present applicant used a heating element elongated in the main scanning direction and changed the recording length of dots in the sub-scanning direction (recording paper conveyance direction) according to the pixel density, thereby achieving high gradations. We proposed an improved heat-melting transfer recording method that can record halftone images (for example, in Japanese Patent Application No. 1999-2-
No. 15886).
前述した特願平２−１５８８６号に記載された発明では
、各記録画素が基盤の目のように並んでいるので、主走
査方向の画素の濃度が同じ場合には、矩形状をしたドツ
トの大きさが同じとなり、主走査方向に延びた線となっ
て表れる。このため、原画像の絵柄によっては、目立ち
易い多数の平行線が表れてしまう。特に、簾等のように
、複数の平行線が含まれている原画像では、これらの平
行線が記録画素同志の境界線と重なってモアレが生じた
り、また原画像に例えば斜めの線が入っていると、この
斜め線がギザついた線となってしまうという欠点がある
ことが判った。In the invention described in the above-mentioned Japanese Patent Application No. 2-15886, each recording pixel is lined up like the eyes of the substrate, so if the density of the pixels in the main scanning direction is the same, the rectangular dots are They have the same size and appear as a line extending in the main scanning direction. Therefore, depending on the pattern of the original image, many parallel lines that are easily noticeable may appear. In particular, in original images that contain multiple parallel lines, such as screen blinds, these parallel lines may overlap the boundaries between recorded pixels, resulting in moiré, or, for example, diagonal lines may appear in the original image. When doing so, I found out that this diagonal line had the disadvantage of becoming a jagged line.
本発明は、主走査方向に延びた平行線が目立つことがな
（、またモアレの発生や斜めの線がギザつくというよう
な不都合を解消した溶融型熱転写記録方法を提供するこ
とを目的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a melting type thermal transfer recording method in which parallel lines extending in the main scanning direction are not noticeable (and moire generation and diagonal lines are jagged). It is something.
上記目的を達成するために、本発明は、記録紙に対して
サーマルヘッドが１記録画素分の距離を移動する間に、
記録すべき画素の濃度に応じて各発熱素子の駆動時間を
制御するとともに、隣接する記録画素の記録位置が記録
紙の搬送方向に記録画素の半ピッチ分の距離だけ互いに
ずれるように、隣接する発熱素子の駆動タイミングを互
いにずらしたものである。In order to achieve the above object, the present invention provides a thermal head that moves a distance corresponding to one recording pixel with respect to recording paper.
The drive time of each heating element is controlled according to the density of the pixel to be recorded, and the recording positions of adjacent recording pixels are shifted from each other by a distance equivalent to a half pitch of the recording pixel in the recording paper conveyance direction. The driving timings of the heating elements are shifted from each other.
別の発明では、隣接する発熱素子の取付は位置を記録紙
の搬送方向に１／２記録画素分の距離だけ互いにずらし
たサーマルヘッドを用い、記録紙に対してサーマルヘッ
ドが１記録画素分の距離を移動する間に記録すべき画素
の濃度に応じて各発熱素子の駆動時間を制御することに
より、隣接する記録画素の記録位置が記録紙の搬送方向
に記録画素の半ピッチ分の距離だけ互いにずれた状態で
記録するようにしたものである。In another invention, adjacent heating elements are mounted using thermal heads whose positions are shifted from each other by a distance of 1/2 recording pixel in the conveyance direction of the recording paper, and the thermal head is mounted by a distance of 1 recording pixel with respect to the recording paper. By controlling the driving time of each heating element according to the density of the pixel to be recorded while moving the distance, the recording position of the adjacent recording pixel can be moved by a distance of half the pitch of the recording pixel in the conveyance direction of the recording paper. The recording is performed in a state where they are shifted from each other.
上記構成によれば、隣接する発熱素子の駆動タイミング
が互いにずれているので、記録画素が記録紙搬送方向と
直角方向に一直線上に並ぶことがない。したがって、記
録画素同士の境界線が目立つことがなくなり、原画像に
平行線があってもモアレが生じることなく、斜め線のギ
ザつきもなくなり、原画像に忠実な記録画像が得られる
。According to the above configuration, since the drive timings of adjacent heating elements are shifted from each other, the recording pixels are not lined up in a straight line in the direction perpendicular to the recording paper conveyance direction. Therefore, boundaries between recorded pixels are not noticeable, moiré does not occur even if there are parallel lines in the original image, jaggedness of diagonal lines is eliminated, and a recorded image that is faithful to the original image can be obtained.
また、別の発明では、隣接する発熱素子の取付は位置が
記録紙の搬送方向に１／２記録画素分の距離だけ互いに
ずれているので、各発熱素子の駆動タイミングが同一で
も隣接する記録画素の記録位置が記録紙の搬送方向に１
／２記録画素分の距離だけ互いにずれた状態で記録され
る。Further, in another invention, since the mounting positions of adjacent heating elements are shifted from each other by a distance of 1/2 recording pixel in the conveyance direction of the recording paper, even if the drive timing of each heating element is the same, the adjacent recording pixels The recording position is 1 in the recording paper transport direction.
The images are recorded while being shifted from each other by a distance of /2 recording pixels.
以下、図面を参照して本発明の実施例について説明する
。Embodiments of the present invention will be described below with reference to the drawings.
本発明を採用した溶融型熱転写記録装置の構成を示す第
１図において、ＴＶ左カメラスキャナー等の画像入力部
１１から取り込まれた画像信号は、Ａ／Ｄ変換器１２に
よってアナログ信号からデジタル信号に変換されてフレ
ームメモリ１４にいったん書き込まれる。このフレーム
メモリ１４から読み出された各画素の画像信号は、画像
信号処理部１５に送られ、ここで階調補正されてテーブ
ルメモリ１６に送出される。In FIG. 1 showing the configuration of a melt-type thermal transfer recording device employing the present invention, an image signal taken in from an image input unit 11 such as a TV left camera scanner is converted from an analog signal to a digital signal by an A/D converter 12. It is converted and once written into the frame memory 14. The image signal of each pixel read from the frame memory 14 is sent to the image signal processing section 15, where the gradation is corrected and sent to the table memory 16.
テーブルメモリ１６は、予め階調制御データを格納して
おり、各画素ごとの画像データをサーマルヘッドの各発
熱素子を駆動する駆動時間データに変換し、ラインバッ
ファメモリ１７に格納する。The table memory 16 stores gradation control data in advance, and converts the image data for each pixel into drive time data for driving each heat generating element of the thermal head, and stores it in the line buffer memory 17.
このラインバッファメモリ１７から読み出された１ライ
ン分の駆動時間データのうち例えば奇数列はタイマー回
路１８によってデジタル量からアナログ量に変換されて
ゲート１９に送出される。−方、偶数列の駆動時間デー
タは遅延回路２０を介してタイマー回路２１に送出され
た後、ゲート２２に送出される。前記遅延回路２０は、
偶数列の画像データが奇数列より１／２記録画素分だけ
印字タイミングが遅れるように、タイマー回路２１への
出力を遅らせている。Of the drive time data for one line read from the line buffer memory 17, for example, odd columns are converted from digital quantities to analog quantities by the timer circuit 18 and sent to the gate 19. On the other hand, the drive time data of the even numbered columns is sent to the timer circuit 21 via the delay circuit 20 and then sent to the gate 22. The delay circuit 20 is
The output to the timer circuit 21 is delayed so that the printing timing of image data in even-numbered columns is delayed by 1/2 recording pixel compared with that in odd-numbered columns.
ゲート１９には第２図（Ａ）に示すような波形の定常パ
ルスＰＯＩを発生させるパルス発生器２４が接続されて
いる。一方、ゲート２２には遅延回路２５を介してパル
ス発生器２４が接続されており、定常パルスＰ（ＩＩを
１／２周期だけ遅延させた第２図（Ｂ）に示すような波
形の定常パルスｐｏｔがゲート２２に入力されている。A pulse generator 24 is connected to the gate 19 for generating a steady pulse POI having a waveform as shown in FIG. 2(A). On the other hand, a pulse generator 24 is connected to the gate 22 via a delay circuit 25, and a steady pulse P (II) having a waveform as shown in FIG. pot is input to the gate 22.
なお、定常パルスＰ （ｌＩ＋ Ｐ ０２は、発熱素
子をインク溶融温度に立ち上げる周期の長い１個の立ち
上げ用パルスＰ。Note that the steady pulse P (lI+ P 02 is one start-up pulse P with a long cycle to start up the heating element to the ink melting temperature.
と、発熱素子の温度を一定レベルに維持する周期の短い
パルス列Ｐ２とからなっている。and a short-cycle pulse train P2 that maintains the temperature of the heating element at a constant level.
ゲート１９は、例えば同図（Ｃ）に示すようなタイマー
から出力された信号によって所定の駆動時間だけ定常パ
ルスＰａｌを通過させることにより、同図（Ｇ）に示す
ような駆動パルスをドライバ２６に出力する。一方、ゲ
ート２２は、例えば同図（Ｄ）に示すような駆動時間の
間定常パルスＰ。２を通過させることにより、同図（Ｈ
）に示すような駆動パルスをドライバ２６に出力する。The gate 19 sends a driving pulse as shown in FIG. 1(G) to the driver 26 by passing the steady pulse Pal for a predetermined driving time using a signal output from a timer as shown in FIG. 1(C), for example. Output. On the other hand, the gate 22 is supplied with a steady pulse P during the driving time, for example, as shown in FIG. 2, the figure (H
) is output to the driver 26.
ドライバ２６は、前記駆動パルスに従ってサーマルヘッ
ド２７を駆動し、各発熱素子を所定時間発熱させる。ま
た、制御回路２８は、前記フレームメモリ１４３画像信
号処理部１５．テーブルメモリ１６．ラインバッファメ
モリ１７．ゲート１９．２２に接続されており、これら
の同期をとって装置全体の制御を行う。The driver 26 drives the thermal head 27 according to the drive pulse to cause each heating element to generate heat for a predetermined period of time. The control circuit 28 also controls the frame memory 143, image signal processing section 15. Table memory 16. Line buffer memory 17. It is connected to gates 19 and 22, and controls the entire device by synchronizing these gates.
サーマルヘッド２７には、幅が例えば２０μ長さが１２
０μ程度の発熱素子２９が記録紙の搬送方向と直角に複
数個ライン状に並べられている。The thermal head 27 has a width of, for example, 20μ and a length of 12μ.
A plurality of heating elements 29 of about 0 μm are arranged in a line at right angles to the recording paper conveyance direction.
サーマルヘッド２７の下方にはプラテン３１が設けられ
ており、これらの間にはインクシート３２゜記録紙３３
が重ね合わされながら、樹脂ローラ３４、ゴムローラ３
５によって一定速度で搬送され、サーマルヘッド２７に
よって所定の融点以上に加熱されたときにインクシート
３２のインク層が溶融して記録紙３３に転写される。A platen 31 is provided below the thermal head 27, and an ink sheet 32 and a recording paper 33 are placed between them.
The resin roller 34 and the rubber roller 3 are
5, the ink layer of the ink sheet 32 is melted and transferred onto the recording paper 33 when heated to a predetermined melting point or higher by the thermal head 27.
以上のように構成された溶融型熱転写記録装置の作用を
説明する。写真や絵画等の中間調画像は画像入力部１１
によって画像信号に変換され、得られた画像信号がＡ／
Ｄ変換器１２を介してフレームメモリ１４に書き込まれ
る。プリント時には、フレームメモリ１４から読み出さ
れた画像信号が画像信号処理部１５によって階調補正さ
れた後、テーブルメモリ１６に送出される。このテーブ
ルメモリ１６により、画像信号は１記録画素（例えば１
２０Ｘ１６０μ）内での記録面積を決定するための駆動
時間データに変換され、ラインバッファメモリ１７に書
き込まれる。そして、制御回路２８により順次１ライン
分の駆動時間データがラインバッファメモリ１７から読
み出され、奇数列はタイマー回路１８を介してゲート１
９に送出され、偶数列は遅延回路２０によって１／２周
期分遅延されてタイマー回路２１を介してゲート２２に
送出される。The operation of the melt-type thermal transfer recording apparatus configured as described above will be explained. For halftone images such as photographs and paintings, the image input section 11
is converted into an image signal by A/
It is written into the frame memory 14 via the D converter 12. During printing, the image signal read from the frame memory 14 is subjected to gradation correction by the image signal processing section 15 and then sent to the table memory 16. This table memory 16 allows the image signal to be stored for one recording pixel (for example, one recording pixel).
The driving time data is converted into driving time data for determining the recording area within 20×160μ) and written into the line buffer memory 17. Then, the drive time data for one line is sequentially read out from the line buffer memory 17 by the control circuit 28.
9, and the even numbered columns are delayed by 1/2 cycle by the delay circuit 20 and sent to the gate 22 via the timer circuit 21.
一方、ゲート１９にはパルス発生器１８から第２図（Ａ
）に示すような定常パルスＰ ０１が入力されており、
同図（Ｃ）、（Ｅ）に示すような駆動時間ＬＩ＋ Ｌ
２＋ Ｌ：ｌ、Ｌａ、Ｌｓ、ｔ６に基づいて定常パル
スＰＯＩを通過させ、同図（Ｇ）。On the other hand, the gate 19 is connected to the pulse generator 18 as shown in FIG.
) is input a steady pulse P01 as shown in
Driving time LI+L as shown in (C) and (E) of the same figure
2+ L: A steady pulse POI is passed based on l, La, Ls, t6, the same figure (G).
（１）に示すような駆動パルスＧ＋ 、Ｇｚ 、Ｇｙ、
Ｇｓ 、Ｇｓ 、Ｇｂをドライバ２６に出力する。Drive pulses G+, Gz, Gy, as shown in (1)
Gs, Gs, and Gb are output to the driver 26.
また、ゲート２２にはパルス発生器１８から遅延回路２
５を介して第２図（Ｂ）に示すような定常パルスＰＯ２
が入力されており、同図（Ｄ）、（Ｆ）に示すような駆
動時間Ｌｔ、Ｌｅ、Ｌｑ、ｔ１゜＋ ｔｌｌ＋ ｔ
ｌ□に基づいて定常パルスＰａｔを通達させ、同図（Ｈ
）、 （Ｊ）に示すような駆動パルスＧ、、Ｇ、、Ｇ
、、Ｇ、。、Ｇ、、、Ｇ、！をドライバ２６に出力する
。Further, the gate 22 is connected to a delay circuit 2 from the pulse generator 18.
5 through the steady pulse PO2 as shown in FIG. 2(B).
is input, and the driving times Lt, Le, Lq, t1° + tll + t as shown in (D) and (F) of the same figure are input.
A steady pulse Pat is sent based on l□, and the same figure (H
), driving pulses G, , G, , G as shown in (J)
,,G,. ,G,,,G,! is output to the driver 26.
ドライバ２６は、駆動パルスＧ＝ 、Ｇｚ 、Ｇ３Ｇ４
．Ｃ，、、Ｃ；、、Ｇ、、Ｇ、、Ｇ、、Ｇ、。。The driver 26 generates drive pulses G= , Gz , G3G4
．． C,,,C;,,G,,G,,G,,G,. .
ＧＩｌ＋Ｇ、□に従ってサーマルヘッド２７を駆動して
、同図（Ｋ）に示すように、それぞれ幅！、。The thermal head 27 is driven according to GIl+G and □, and as shown in the same figure (K), the respective widths! ,.
ｚｔ、ｚｓ、Ｃ，ｚｓ、 Ｉ！、＆＋ ｆ、、ｆ、
、１９，１１゜＋’ ｊ！ Ｉ ｌ＋ １！、ｌ！の
記録画素を記録紙３３に転写記録する。zt, zs, C, zs, I! ,&+f,,f,
, 19,11°+' j! I l+1! ,l! The recording pixels are transferred and recorded on the recording paper 33.
このように、隣接した記録画素が互いにずれて記録され
るので、記録画素同士の境界線が記録紙搬送方向と直角
方向で目立つようなことがなくなり、モアレの発生や斜
め線のギザつきがなくなるまた、駆動時間の増減によっ
て１記録画素中に転写されるインク幅が増減されるので
、熱溶融型の転写方式でありながら、高い階調性を得る
ことができる。さらに、２×２程度のマトリクスを用い
たデイザ法を併用することにより、より高い階調性を得
ることができる。In this way, adjacent recording pixels are recorded offset from each other, so the boundary lines between recording pixels are no longer noticeable in the direction perpendicular to the recording paper transport direction, eliminating moiré and jagged diagonal lines. Further, since the width of ink transferred into one recording pixel is increased or decreased by increasing or decreasing the driving time, high gradation can be obtained even though it is a heat-melting transfer method. Furthermore, higher gradation can be obtained by using a dither method using a matrix of approximately 2×2.
次に、本発明の別の実施例を第３図を参照して説明する
。この実施例は、サーマルヘッド４０の隣接した発熱素
子４２同士を記録紙搬送方向に互いに１／２記録画素分
だけずらしたものである。Next, another embodiment of the present invention will be described with reference to FIG. In this embodiment, adjacent heating elements 42 of a thermal head 40 are shifted from each other by 1/2 recording pixel in the recording paper conveyance direction.
即ち、発熱素子４２同士のずらし距離は１記録画素の長
さをｌとすると（１／２） ・ｌとなる。このサーマル
ヘッド４０を用いて各発熱素子４２の駆動信号を同時に
供給することにより、隣接した記録画素が１／２記録画
素分だけ互いにずれた位置に記録されるので、前記実施
例と同様の効果を得ることができる。That is, the shifting distance between the heating elements 42 is (1/2)·l, where the length of one recording pixel is l. By simultaneously supplying drive signals to each heating element 42 using this thermal head 40, adjacent recording pixels are recorded at positions shifted from each other by 1/2 recording pixel, resulting in the same effect as in the previous embodiment. can be obtained.
なお、本発明における熔融型熱転写記録方法は、インク
シートのインクが明確な溶融温度を有しているものだけ
ではなく、日立マクセル株式会社により発表されたＴＳ
インクロール（商品名）のように、明確な溶融温度を示
さないインクを使う場合も含む。Note that the melt-type thermal transfer recording method in the present invention is applicable not only to those in which the ink of the ink sheet has a definite melting temperature, but also to the TS technology announced by Hitachi Maxell, Ltd.
This also includes cases where inks that do not have a clear melting temperature are used, such as Ink Roll (trade name).
４゜
以上詳細に説明したように、本発明の溶融型熱転写記録
方法によれば、記録紙に対してサーマルヘッドが１記録
画素分の距離を移動する間に、記録すべき画素の濃度に
応じて各発熱素子の駆動時間を制御するとともに、隣接
する発熱素子の駆動タイミングを互いにずらして隣接す
る記録画素が記録紙搬送方向に１／２記録画素分だけ互
いにずれるようにしたので、記録紙搬送方向と直角方向
の線が目立つことがなくなり、モアレの発生や斜め線の
ギザつきがなくなる。4. As explained in detail above, according to the melt-type thermal transfer recording method of the present invention, while the thermal head moves a distance corresponding to one recording pixel with respect to the recording paper, The drive time of each heat generating element is controlled by the control, and the drive timings of adjacent heat generating elements are shifted from each other so that adjacent recording pixels are shifted from each other by 1/2 recording pixel in the recording paper transport direction. Lines perpendicular to the direction are no longer noticeable, and moiré and diagonal lines are no longer jagged.
別の発明では、隣接する発熱素子の取付は位置を記録紙
の搬送方向に１／２記録画素分の距離だけ互いにずらし
たサーマルヘッドを用い、記録紙に対してサーマルヘッ
ドが１記録画素分の距離を移動する間に記録すべき画素
の濃度に応して各発熱素子の駆動時間を制御するように
したので、前記発明と同様の効果が得られる。In another invention, adjacent heating elements are mounted using thermal heads whose positions are shifted from each other by a distance of 1/2 recording pixel in the conveyance direction of the recording paper, and the thermal head is mounted by a distance of 1 recording pixel with respect to the recording paper. Since the driving time of each heating element is controlled according to the density of the pixel to be recorded while moving the distance, the same effect as the above invention can be obtained.
第１図は本発明を実施する熱溶融型転写記録装置の概略
を示すブロック図である。
第２図（Ａ）はパルス発生器によって発生される定常パ
ルスＰＯＩを示す波形図である。
第２図（Ｂ）は定常パルスＰ。ｌを１／２周期ずらした
定常パルスＰ。２を示す波形図である。
第２図（Ｃ）、（Ｄ）、（Ｅ）、（Ｆ）は駆動時間をそ
れぞれ示す波形図である。
第２図（Ｇ）、（Ｈ）、（１）、（Ｊ）は駆動パルスの
一例をそれぞれ示す波形図である。
第２図（Ｋ）は同図（Ｇ）、（Ｈ）、（Ｉ）。
（Ｊ）にそれぞれ示した駆動パルスによってインクが記
録紙に転写された状況を示す説明図である。
第３図は発熱素子を１つおきに半ピンチずらして配置し
たサーマルへ・ンドを示す平面図である。
ｌ ８ ２１
１９．２２
２０、 ２５
２４ ・
２７、 ４０
２９．４２
タイマー回路
ゲート
遅延回路
パルス発生器
サーマルヘッド
発熱素子。
第
図
手続補正書
平成 ３年 ６月２１日
２゜
３゜
４゜
平成 ２年 特許側 第１３４３４５号発明の名称
溶融型熱転写記録方法
補正をする者
事件との関係 特許出願人FIG. 1 is a block diagram schematically showing a thermal melt transfer recording apparatus for implementing the present invention. FIG. 2(A) is a waveform diagram showing a steady pulse POI generated by a pulse generator. FIG. 2(B) shows a steady pulse P. Steady pulse P with l shifted by 1/2 period. FIG. 2 is a waveform diagram showing 2. FIGS. 2(C), (D), (E), and (F) are waveform charts showing drive times, respectively. FIGS. 2(G), (H), (1), and (J) are waveform charts showing examples of drive pulses, respectively. Figure 2 (K) is the same figure as (G), (H), and (I). FIG. 7(J) is an explanatory diagram showing a situation in which ink is transferred to recording paper by the drive pulses shown in FIG. FIG. 3 is a plan view showing a thermal head in which every other heating element is shifted by a half-pinch. l 8 21 19.22 20, 25 24 ・27, 40 29.42 Timer circuit Gate delay circuit Pulse generator Thermal head heating element. Figure procedural amendment June 21, 1991 2゜3゜4゜1990 Patent side No. 134345 Name of the invention Melting type thermal transfer recording method Person making amendments Relationship to the case Patent applicant
Claims (2)
並べたサーマルヘッドを記録紙に対して相対的に連続移
動させ、サーマルヘッドと記録紙との間に設けられた熱
転写用インクフィルムのインクを熱溶融し、これを記録
紙に転写して画像を記録する溶融型熱転写記録方法にお
いて、 前記記録紙に対してサーマルヘッドが１記録画素分の距
離を移動する間に、記録すべき画素の濃度に応じて各発
熱素子の駆動時間を制御するとともに、隣接する記録画
素の記録位置が記録紙の搬送方向に１／２記録画素分の
距離だけ互いにずれるように、隣接する発熱素子の駆動
タイミングを互いにずらしたことを特徴とする溶融型熱
転写記録方法。(1) A thermal head in which a plurality of heating elements are arranged in a direction perpendicular to the conveying direction of the recording paper is continuously moved relative to the recording paper, and the thermal transfer ink film provided between the thermal head and the recording paper is In a melt-type thermal transfer recording method in which an image is recorded by thermally melting ink and transferring it to recording paper, the pixel to be recorded is The driving time of each heating element is controlled according to the density of the heating element, and the driving of adjacent heating elements is controlled so that the recording positions of adjacent recording pixels are shifted from each other by a distance of 1/2 recording pixel in the conveyance direction of the recording paper. A melt-type thermal transfer recording method characterized by mutually staggered timings.
並べたサーマルヘッドを記録紙に対して相対的に連続移
動させ、サーマルヘッドと記録紙との間に設けられた熱
転写用インクフィルムのインクを熱溶融し、これを記録
紙に転写して画像を記録する溶融型熱転写記録方法にお
いて、 隣接する発熱素子の取付け位置を記録紙の搬送方向に１
／２記録画素分の距離だけ互いにずらしたサーマルヘッ
ドを用い、前記記録紙に対してサーマルヘッドが１記録
画素分の距離を移動する間に記録すべき画素の濃度に応
じて各発熱素子の駆動時間を制御することにより、隣接
する記録画素の記録位置が記録紙の搬送方向に１／２記
録画素分の距離だけ互いにずれた状態で記録することを
特徴とする溶融型熱転写記録方法。(2) A thermal head in which a plurality of heating elements are arranged in a direction perpendicular to the conveyance direction of the recording paper is continuously moved relative to the recording paper, and the thermal transfer ink film provided between the thermal head and the recording paper is In the melt-type thermal transfer recording method, in which ink is thermally melted and transferred to recording paper to record an image, adjacent heating elements are installed at one position in the recording paper conveyance direction.
Using thermal heads that are shifted from each other by a distance of 2 recording pixels, each heating element is driven according to the density of the pixel to be recorded while the thermal head moves a distance of 1 recording pixel with respect to the recording paper. A melt-type thermal transfer recording method characterized in that, by controlling time, recording is performed such that the recording positions of adjacent recording pixels are shifted from each other by a distance of 1/2 recording pixel in the conveying direction of recording paper.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13434590A JP2643536B2 (en) | 1990-05-24 | 1990-05-24 | Melt type thermal transfer recording method |
| DE19914115881 DE4115881C2 (en) | 1990-05-15 | 1991-05-15 | Thermal wax transfer printing process |
| US08/024,813 US5297878A (en) | 1990-05-15 | 1993-03-01 | Method of thermal wax transfer printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13434590A JP2643536B2 (en) | 1990-05-24 | 1990-05-24 | Melt type thermal transfer recording method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428569A true JPH0428569A (en) | 1992-01-31 |
| JP2643536B2 JP2643536B2 (en) | 1997-08-20 |
Family
ID=15126188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13434590A Expired - Fee Related JP2643536B2 (en) | 1990-05-15 | 1990-05-24 | Melt type thermal transfer recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2643536B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8728650B2 (en) | 2010-09-30 | 2014-05-20 | Lg Chem, Ltd. | Apparatus and method for enhancing impregnation with electrolyte in secondary battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58134766A (en) * | 1982-02-04 | 1983-08-11 | Seiko Instr & Electronics Ltd | Heat-sensitive recorder |
| JPS62171378A (en) * | 1986-01-24 | 1987-07-28 | Fuji Photo Film Co Ltd | Gradational recording method in thermal transfer |
| JPH02305656A (en) * | 1989-05-22 | 1990-12-19 | Hitachi Ltd | Thermal transfer recording method |
| JPH0347760A (en) * | 1989-07-14 | 1991-02-28 | Sony Corp | Thermal printer |
-
1990
- 1990-05-24 JP JP13434590A patent/JP2643536B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58134766A (en) * | 1982-02-04 | 1983-08-11 | Seiko Instr & Electronics Ltd | Heat-sensitive recorder |
| JPS62171378A (en) * | 1986-01-24 | 1987-07-28 | Fuji Photo Film Co Ltd | Gradational recording method in thermal transfer |
| JPH02305656A (en) * | 1989-05-22 | 1990-12-19 | Hitachi Ltd | Thermal transfer recording method |
| JPH0347760A (en) * | 1989-07-14 | 1991-02-28 | Sony Corp | Thermal printer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8728650B2 (en) | 2010-09-30 | 2014-05-20 | Lg Chem, Ltd. | Apparatus and method for enhancing impregnation with electrolyte in secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2643536B2 (en) | 1997-08-20 |
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