JPS58208077A - Heat transfer type printing apparatus - Google Patents
Heat transfer type printing apparatusInfo
- Publication number
- JPS58208077A JPS58208077A JP57089695A JP8969582A JPS58208077A JP S58208077 A JPS58208077 A JP S58208077A JP 57089695 A JP57089695 A JP 57089695A JP 8969582 A JP8969582 A JP 8969582A JP S58208077 A JPS58208077 A JP S58208077A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat generating
- temp
- generating resistor
- current
- 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
- B41J2/35—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 providing current or voltage to the thermal head
Landscapes
- Electronic Switches (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は熱転写型印刷装置に係り、感熱転写方式の印刷
装置において、感熱ヘッドに生じるFJO熱用熱度温度
所によらず一定のものでなく変化の生じるようなものに
構成し、感熱ヘッドによる印刷インクの熔融面積量を自
在に可変できるものとすることにより、面積階調記録方
式が連続的な階調変化の記録方式のものとでき、例えば
テレビジョン画像信号等のa淡のある印刷記録において
分解能の向上が図れるものとなる熱転写型印刷装置を提
供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal transfer printing device, and relates to a thermal transfer printing device in which the FJO heat generated in a thermal head is not constant and varies depending on the location. By making it possible to freely vary the amount of melted area of printing ink by the thermal head, the area gradation recording method can be made into a recording method with continuous gradation changes, which can be used for recording, for example, television image signals, etc. A. An object of the present invention is to provide a thermal transfer printing device that can improve resolution in printing records that are pale.
感熱転写方式の印刷装置は、その原理を第1図に示す如
く、記録用紙1と転写紙2とを密着させて圧力ローラ3
と感熱ヘッド4との間に送り込み、感熱ヘッド4の各発
熱用抵抗体に電流を流して各発熱用抵抗体を各々発熱−
させ、転写紙2を加熱すると、絵写紙しく一定の厚さで
i布されている熱熔融性インク2′が熔融し、記録用紙
1に熱熔融性インク2′が付着させられ、このようにし
て印刷された記録用紙は適当な形状にカットされて印刷
物となり、不要となった転写紙はガイドローラをへて巻
取ローラに巻き取られて処分されるようなものである。As shown in FIG. 1, the principle of a thermal transfer type printing device is that a recording paper 1 and a transfer paper 2 are brought into close contact with each other, and a pressure roller 3 is used.
and the heat-sensitive head 4, and a current is passed through each heat-generating resistor of the heat-sensitive head 4 to cause each heat-generating resistor to generate heat.
When the transfer paper 2 is heated, the hot-melt ink 2', which is coated with a constant thickness like a picture paper, melts, and the hot-melt ink 2' is attached to the recording paper 1. The printed recording paper is cut into a suitable shape to become a printed matter, and the unnecessary transfer paper is disposed of by passing through a guide roller and being wound up by a take-up roller.
この熱熔融性インクの付着による記録は、例えば単位面
積を、第2図に示す如く、4行4列に分割した場合に、
数字の小さい順に塗りつぶしてゆくことにより所定のa
度を得るといったデイザマトリックスによる面積階調記
録が提案されているが、このディザマトリックスによる
面積階調記録方式は、階調数を多くすることは困難であ
り、従って印刷記録の分解能に劣るものであるといった
欠点がある。For example, when a unit area is divided into 4 rows and 4 columns as shown in FIG.
By filling in the numbers in ascending order, the specified a
Area gradation recording using a dither matrix has been proposed, but it is difficult to increase the number of gradations, and therefore the resolution of print recording is inferior. There are drawbacks such as:
本発明は上記欠点を除去したものであり、以丁その実施
例について説明する。The present invention eliminates the above-mentioned drawbacks, and embodiments thereof will now be described.
すなわち、第1図においてその原理を述べたように、記
録用紙と転写紙とを密着させて圧力ローラと感熱ヘッド
との間に送り込み、感熱ヘッドの各発熱用抵抗体に電流
を流して各発熱用抵抗体を各々発熱させ、転写・紙を加
熱することにより転写紙に一定の厚さで塗布されている
熱熔融性インクを熔融し、この熔融した熱熔融性インク
を記録用紙に付着させることによって印刷するといった
装置において、感熱ヘッドの発熱用抵抗体10の形状を
、例えば第3図aに示す如く、正方形状に構成したので
ある。That is, as the principle was described in Fig. 1, recording paper and transfer paper are placed in close contact with each other and are fed between a pressure roller and a thermal head, and a current is passed through each heat generating resistor of the thermal head to generate heat. The heat-melting ink coated to a certain thickness on the transfer paper is melted by heating the transfer and paper resistors by generating heat, and the melted heat-melt ink is attached to the recording paper. In an apparatus for printing using a heat sensitive head, the heat generating resistor 10 of the thermal head is configured to have a square shape, for example, as shown in FIG. 3a.
このように発熱用抵抗体を構成しておくと、発熱用抵抗
体に電流を流した場合には、該抵抗体の発熱によって生
じる温度分布は、場所によらず均一といったものでなく
、中心部が最も高く、そして中心部より同心円状に周辺
に近づくにつれて低くなるといったようになり、XY面
に対してZ軸方向に温度を示すとあたかもXY面に垂直
に円錐形のような温度分布を示すものとなり、従って転
写紙の熱熔融性インクに加えられる熱は発熱用抵抗体の
中心部に対応して最も高く、同心円状に降下するといっ
たようになり、発熱用抵抗体に流す電流を制御すれば、
発熱用抵抗体によって生じるインク熔融へ以上の温度゛
分布の領域を自在に変えられるものとなと。By configuring the heat generating resistor in this way, when a current is passed through the heat generating resistor, the temperature distribution generated by the heat generated by the resistor will not be uniform regardless of the location, but will be distributed in the center. is the highest, and decreases as it approaches the periphery in a concentric circle from the center, and when the temperature is shown in the Z-axis direction with respect to the XY plane, it shows a conical temperature distribution perpendicular to the XY plane. Therefore, the heat applied to the heat-melting ink on the transfer paper is highest at the center of the heat-generating resistor and falls concentrically, making it difficult to control the current flowing through the heat-generating resistor. Ba,
It is possible to freely change the range of temperature distribution caused by the heating resistor for ink melting.
例えば、第3図すの一点鎖線で示すような温度分布のも
のとなるように電流を発熱用抵抗体に流した場合には、
熱熔融性インクの熔融点以ヒの温度となる部分は第3図
aの一点鎖線で囲む円内の部分となり、さらに電流を流
して第3図すの二点鎖線で示すような□温度分布のもの
とした場合には、熱熔融性インクの溶融点以上の温度と
なる部分は第3図aの二点鎖線で囲む円内の部分といっ
たように、発熱用抵抗体に流す電流を制御するのみで記
録用紙に転写する熱熔融性インクの面積を連続的に可変
調節できるようになる。従って、従来のような少ない階
調数の面積階調記録といったものでなく、電流の制御に
よって自在に変えられる無限の面積階調記録のものとな
り、分解能の、向トを格段に図れるものとなる。For example, if a current is passed through a heating resistor so that the temperature distribution is as shown by the dashed line in Figure 3,
The part where the temperature is higher than the melting point of the hot-melt ink is the part within the circle surrounded by the dashed-dotted line in Figure 3a, and when a current is further applied, the temperature distribution is as shown by the dashed-double line in Figure 3a. In this case, the current flowing through the heating resistor is controlled so that the area where the temperature is higher than the melting point of the hot-melt ink is the area within the circle surrounded by the two-dot chain line in Figure 3a. The area of the hot-melt ink transferred to the recording paper can be continuously and variably adjusted using the press only. Therefore, instead of the conventional area gradation recording with a small number of gradations, it becomes an infinite area gradation recording that can be freely changed by controlling the current, and the resolution can be greatly improved. .
尚、上記実施例においては、温度分布が同心円状に変化
するものとなるように構成した場合で説明したが、これ
は例えばダ円状に変化するよう構成したものでも良い。In the above embodiment, a case has been described in which the temperature distribution changes concentrically, but it may also change, for example, in a circular pattern.
上述の如く、本発明に係る熱転写型印刷装置は、感熱ヘ
ッドの発熱用抵抗体に電流を流して該発熱用抵抗体の温
度を上昇させることにより転写紙に塗布されているイン
クを熔融して記録用紙に転写する熱転写型印刷装置にお
いて、発熱用抵抗体の場所によってその発熱温度が変る
よう構成し、発熱用抵抗体に加える電流制御によってイ
ンクの熔融量を制御して曝位面積当りの発色濃度を制御
するようにしたので、面積階調記録が発熱用抵抗体に流
す電流に応じて自在に変えられる階調数の極めて多いも
のとなり、分解能が著しく向トしたものとなる等の特長
を有する。As described above, the thermal transfer printing device according to the present invention melts the ink applied to the transfer paper by passing a current through the heat generating resistor of the thermal head and increasing the temperature of the heat generating resistor. A thermal transfer printing device that transfers images onto recording paper is configured so that the heat generation temperature changes depending on the location of the heat generating resistor, and the amount of melted ink is controlled by controlling the current applied to the heat generating resistor to produce color per exposed area. Since the density is controlled, area gradation recording has an extremely large number of gradations that can be freely changed according to the current flowing through the heating resistor, and the resolution is significantly improved. have
第1図は感熱転写方式の印刷装置の原理説明図、第2図
はディザマトリックスによる階調記録の説明図、第3図
aは本発明に係る熱転写型印刷装置の発熱用抵抗体の説
明図、同図すは温度分布の説明図である。
10・・・発熱用抵抗体。
特許出願人 日本ビクター株式会社
代理人 宇 高 克 己Fig. 1 is an explanatory diagram of the principle of a thermal transfer type printing device, Fig. 2 is an explanatory diagram of gradation recording using a dither matrix, and Fig. 3a is an explanatory diagram of a heating resistor of a thermal transfer type printing device according to the present invention. , the same figure is an explanatory diagram of temperature distribution. 10... Resistor for heat generation. Patent applicant: Katsumi Utaka, agent of Victor Japan Co., Ltd.
Claims (1)
体の温度を上昇させることにより転写紙に塗布されてい
るインクを熔融して記録用紙に転写する熱転写型印刷装
置において、発熱用抵抗体の場所によってその発熱温度
が変るよう構成し、発熱用抵抗体に加える電流制御によ
ってインクの熔融量を制御して単位面積当りの発色濃度
を制御するようにしたことを特徴とする熱転写型印刷装
置0In a thermal transfer printing device that melts the ink applied to the transfer paper and transfers it to the recording paper by passing a current through the heat generating resistor of the thermal head and increasing the temperature of the heat generating resistor, the heat generating resistor is used. Thermal transfer printing is characterized in that the heat generation temperature changes depending on the location on the body, and the amount of melted ink is controlled by controlling the current applied to the heat generating resistor, thereby controlling the color density per unit area. device 0
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57089695A JPS58208077A (en) | 1982-05-28 | 1982-05-28 | Heat transfer type printing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57089695A JPS58208077A (en) | 1982-05-28 | 1982-05-28 | Heat transfer type printing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58208077A true JPS58208077A (en) | 1983-12-03 |
Family
ID=13977896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57089695A Pending JPS58208077A (en) | 1982-05-28 | 1982-05-28 | Heat transfer type printing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58208077A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54161948A (en) * | 1978-06-13 | 1979-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Method and apparatus for heat sensitive recording |
JPS559879A (en) * | 1978-07-07 | 1980-01-24 | Mitsubishi Electric Corp | Recording method of intermediate heat sensitivity |
-
1982
- 1982-05-28 JP JP57089695A patent/JPS58208077A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54161948A (en) * | 1978-06-13 | 1979-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Method and apparatus for heat sensitive recording |
JPS559879A (en) * | 1978-07-07 | 1980-01-24 | Mitsubishi Electric Corp | Recording method of intermediate heat sensitivity |
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