JPH03205175A - Thermal transfer printer - Google Patents
Thermal transfer printerInfo
- Publication number
- JPH03205175A JPH03205175A JP1029390A JP1029390A JPH03205175A JP H03205175 A JPH03205175 A JP H03205175A JP 1029390 A JP1029390 A JP 1029390A JP 1029390 A JP1029390 A JP 1029390A JP H03205175 A JPH03205175 A JP H03205175A
- Authority
- JP
- Japan
- Prior art keywords
- ink sheet
- sheet
- image
- speed
- image receiving
- 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
- 230000007246 mechanism Effects 0.000 claims abstract 3
- 230000007723 transport mechanism Effects 0.000 claims abstract 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000032258 transport Effects 0.000 abstract 4
- 239000000470 constituent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野）
本発明は、例えば熱転写式プリンタに関し、特に感熱転
写式のサーマルプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to, for example, a thermal transfer printer, and particularly to a thermal transfer printer.
（従来の技術）
従来のこの種のサーマルブυンタとしては、例えば第２
図に示すものがある。(Prior art) As a conventional thermal printer of this kind, for example,
There is one shown in the figure.
第２図は一般的な感熱転写型プリンタであって、プラテ
ンローラｌｏｔにより速度Ｖｐで一定方向に搬送される
受像紙１０卆と、送りローラ１０３により速度Ｖｉで同
方向に搬送されるｎ回使用可能なインクシー｝−１０４
とを重ね合わせ．これら受像紙１０２及びインクシー１
−１０４をプラテンローラ１０１と画像記録情報に応じ
た熱パターンを発生するサーマ／｝ヘッド１０５との間
に挟み込み、インクシート＋０４のインクを選択的に転
写することにより画像情報を受像紙＋０２に転写する構
成となっており、受像紙１０２とインクシート１０４と
の搬送速度比Ｖ ｐ ／ Ｖ ｉを１以上とすることに
よりインクシート１０４を高密度に利用することができ
交換頻度を低減することができる。FIG. 2 shows a general thermal transfer printer, in which 10 volumes of image-receiving paper are conveyed in a fixed direction at a speed Vp by a platen roller lot, and n times used to be conveyed in the same direction at a speed Vi by a feed roller 103. Possible Inksey}-104
Superimpose. These receiving paper 102 and ink sheet 1
-104 is sandwiched between the platen roller 101 and the thermal head 105 that generates a thermal pattern according to the image recording information, and the image information is transferred to the image receiving paper +02 by selectively transferring the ink on the ink sheet +04. By setting the transport speed ratio V p /V i between the image receiving paper 102 and the ink sheet 104 to 1 or more, the ink sheet 104 can be used with high density and the frequency of replacement can be reduced. can.
ところで，このようなプリンタは例えば特開昭５７−８
３４７ １号公報や特公昭６２−５８９ １７号公報に
開示されたように、画像濃度はインクシートの搬送速度
Ｖｉに影響されることが一般に知られている。即ち、イ
ンクシートの搬送速度■ｌをＶｉ＝Ｖ±Δ■としたとき
，速度■は絶対濃度に影響し速度むら△Ｖは濃度むらに
影響する。By the way, such a printer is manufactured by, for example, Japanese Patent Application Laid-Open No. 57-8
As disclosed in Japanese Patent Publication No. 347-1 and Japanese Patent Publication No. 62-589-17, it is generally known that image density is influenced by the conveying speed Vi of the ink sheet. That is, when the ink sheet conveying speed ■l is Vi=V±Δ■, the speed ■ influences the absolute density, and the speed unevenness ΔV influences the density unevenness.
これに対し、前述の特公昭６２−５８９ １ ７号公報
に開示されたものでは，インクシートの巻取径により速
度Ｖが変動し回転むらにより速度むらΔＶが発生するこ
とに着目し、巻取径を検知し、この検知に応じて回転速
度を制御することにより速度■を一定として画像濃度を
良好としている。On the other hand, the method disclosed in the above-mentioned Japanese Patent Publication No. 62-589 17 focuses on the fact that the speed V fluctuates depending on the winding diameter of the ink sheet and that the speed unevenness ΔV occurs due to rotational unevenness. By detecting the diameter and controlling the rotational speed according to this detection, the speed (2) is kept constant and the image density is made good.
Claims (2)
より一定方向に搬送される複数回使用可能なインクシー
トと、他の搬送機構により同方向に搬送される受像紙と
を重ね合わせ、画像記録情報に応じた熱パターンを発生
するサーマルヘッドにより前記インクシートのインクを
選択的に転写することにより画像情報を受像紙に転写す
る熱転写式プリンタであって、前記搬送機構は前記イン
クシート搬送速度をＶｉとし受像紙の搬送速度をＶｐと
したときの速度比Ｖｐ／Ｖｉが１以上となるようそれぞ
れの速度を設定し、前記インクシートの巻取軸に設けら
れ該シートに所定の張力を付与する付与手段と、この付
与手段を印写開始前に駆動するよう制御する制御手段と
を備えたことを特徴とする熱転写式プリンタ。(1) An ink sheet that can be used multiple times, which is transported in a certain direction from the ink sheet take-up shaft by a roller-type transport mechanism, and an image-receiving paper, which is transported in the same direction by another transport mechanism, are overlapped to form an image. A thermal transfer printer that transfers image information to image receiving paper by selectively transferring ink on the ink sheet using a thermal head that generates a thermal pattern according to recorded information, wherein the conveying mechanism controls the ink sheet conveying speed. The respective speeds are set so that the speed ratio Vp/Vi is 1 or more when Vi is the transport speed of the image receiving paper and Vp is the transport speed of the image receiving paper. What is claimed is: 1. A thermal transfer printer, comprising: a applying means for applying a liquid, and a control means for controlling the applying means to drive the applying means before starting printing.
検出する張力検出手段を設け、前記制御手段は前記印写
開始前であってこの検出手段による検出張力が所定値に
達するまで駆動することを特徴とする請求項（２）記載
の熱転写式プリンタ。(2) The conveyance mechanism for the ink sheet is provided with a tension detection means for detecting the tension of the sheet, and the control means is driven before the start of printing until the tension detected by the detection means reaches a predetermined value. The thermal transfer printer according to claim 2, characterized in that:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1-117699 | 1989-10-06 | ||
| JP11769989 | 1989-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03205175A true JPH03205175A (en) | 1991-09-06 |
Family
ID=14718117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1029390A Pending JPH03205175A (en) | 1989-10-06 | 1990-01-19 | Thermal transfer printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03205175A (en) |
-
1990
- 1990-01-19 JP JP1029390A patent/JPH03205175A/en active Pending
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