JPS62199471A - Thermal printer - Google Patents
Thermal printerInfo
- Publication number
- JPS62199471A JPS62199471A JP4298586A JP4298586A JPS62199471A JP S62199471 A JPS62199471 A JP S62199471A JP 4298586 A JP4298586 A JP 4298586A JP 4298586 A JP4298586 A JP 4298586A JP S62199471 A JPS62199471 A JP S62199471A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- resistor layer
- heating resistor
- substrate
- heat
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000007651 thermal printing Methods 0.000 claims description 17
- 238000007639 printing Methods 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- B41J2/375—Protection arrangements against overheating
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、発熱素子からの熱によって印刷を行泰う熱
印刷装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal printing device that performs printing using heat from a heating element.
第３図は例えば特開昭５９−７０６８４＋公報に示さね
た従来の熱印刷装置を示す構成図であり、図において、
＋１）はアルミナ等からなる基板、（３１と（４１はそ
れぞれ例えば薄膜技術により基板ｆｉｌ上に投けられた
導電層と発熱抵抗体層、（ｌＯ）は基板ｉｌ＋の温度を
検出する＠変検出センサ、ＣＤは温度検出センサｆｌｏ
ｌからのアナログ信号をディジタル信号に変換するＡｈ
変換器、（イ）はＡ／Ｄ変換器ＱＤからのディジタル信
号を用いて、印加電圧調整を司るＣＰＵ、器はＡｂ変換
器（至）からの基板ｆｉｌの温度（ディジタル信号）に
対する電圧値をディジタル信号として出力する電圧決定
部、１２４は電圧決定部（至）からのディジタル信号を
アナログ信号に変換するＤ／Ａ変換器、（イ）けＤ／Ａ
変換器（ハ）からの電圧信号と画像信号供給装置（至）
からの画像信号とを入力し、発熱させたい発熱抵抗体層
（４）へ駆動信号を出力するパワーアンプ型電源である
。FIG. 3 is a block diagram showing a conventional thermal printing device not shown in, for example, Japanese Patent Application Laid-Open No. 59-70684+, and in the figure,
+1) is a substrate made of alumina or the like, (31 and (41) are a conductive layer and a heating resistor layer, respectively, which are cast on the substrate fil using thin film technology, for example, (lO) is a @variation detection device that detects the temperature of the substrate il+ Sensor, CD is temperature detection sensor flo
Ah converts the analog signal from l into a digital signal
The converter (A) uses the digital signal from the A/D converter QD to calculate the voltage value with respect to the temperature (digital signal) of the substrate fil from the CPU that controls the applied voltage adjustment. 124 is a D/A converter that converts the digital signal from the voltage determining section (to) into an analog signal;
Voltage signal from converter (c) and image signal supply device (to)
This is a power amplifier type power supply that inputs an image signal from the 3D power source and outputs a drive signal to the heating resistor layer (4) to generate heat.
次に動作について説明する。温度検出センサ（ｌＯ）に
て検出した基板（１）の温度を発熱抵抗体層（４１の初
期温度Ｔｏとみなし、電圧決定部（ハ）に格納されてい
る上記初期温度ＴｏＫ対応した電圧値を出力する。この
ようにして、電圧値が決定されると、ＶＡ変換器■を介
し、パワーアンプ型電源−に設定電圧値に対応したアナ
ログ信号が供給される。続いて、パワーアンプ型電源に
）は、上記アナログ信号に対応した電圧を有する駆動信
号を発熱抵抗体層（４）に出力する。但し、パワーアン
プ製電Ｒ（７）からの出力は、画像信号供給装置（至）
からの出力信号によってオンオフが制御される。Next, the operation will be explained. The temperature of the substrate (1) detected by the temperature detection sensor (lO) is regarded as the initial temperature To of the heating resistor layer (41), and the voltage value corresponding to the above initial temperature ToK stored in the voltage determination section (c) is determined. In this way, when the voltage value is determined, an analog signal corresponding to the set voltage value is supplied to the power amplifier type power supply through the VA converter. ) outputs a drive signal having a voltage corresponding to the analog signal to the heating resistor layer (4). However, the output from the power amplifier Seiden R (7) is the image signal supply device (to)
On/off is controlled by the output signal from.
ここで、従来のサーマルヘッドの構造について以下で説
明する。第４図は例えば特開昭５８−２２０７フ０号公
報に示された従来のサーマルヘッドを示す断面図であり
、図において、基板（１）にグレーズ層（２）か厚膜印
刷法により一部に断面が半円形状に膨出するように形成
され、このグレーズ層（２）上の膨出部を除く面に導電
層（３：と、さらにグレーズ層（２）上の膨出部と導′
鑞場（３１の一部に発熱抵抗体層（４１と耐摩耗性のよ
い熱伝導体層（５）がスパッタリング法又は蒸着法によ
り順次形成されている。よって、発熱抵抗体層（４）に
て発生した熱は、熱伝導体＠（５１にも、グレーズ層（
２）を介して基板ｆｉ＋にも伝導する。Here, the structure of a conventional thermal head will be described below. FIG. 4 is a sectional view showing a conventional thermal head disclosed in, for example, Japanese Unexamined Patent Publication No. 58-2207-00. The conductive layer (3:) is formed so that the cross section bulges out in a semicircular shape on the glaze layer (2), and the conductive layer (3:) is formed on the surface excluding the bulge on the glaze layer (2), and the bulge on the glaze layer (2). Guidance
A heating resistor layer (41) and a heat conductor layer (5) with good wear resistance are sequentially formed on a part of the soldering field (31) by sputtering or vapor deposition. The heat generated is transferred to the thermal conductor @ (51) and the glaze layer (
2) is also conducted to the substrate fi+.
従来の熱印刷装置は以上のように構成されているので、
グレーズ層（２）を介して基板（１）に熱が逃げるため
、感熱紙への熱効率が悪く、発熱抵抗体層（４１への印
加電圧を大きくする必要かあり、寿命が低下する。また
、基板（１）に温度検出センサｔｉｏ＋が付加されてい
るので、発熱抵抗体層（４１の温Ｉｆｖ化に敏感に追随
することかできず、印刷”むら°°及び１かすれ”が生
じるなどの問題点があった。Conventional thermal printing equipment is configured as described above.
Since heat escapes to the substrate (1) through the glaze layer (2), the heat efficiency to the thermal paper is poor, and it is necessary to increase the voltage applied to the heating resistor layer (41), resulting in a shortened service life. Since the temperature detection sensor tio+ is added to the substrate (1), it cannot sensitively follow the increase in temperature of the heating resistor layer (41), causing problems such as "unevenness and 1 blur" in printing. There was a point.
この発明は上記のような問題点を解消するためになされ
たもので、感熱紙への熱効率を向上させ、サーマルヘッ
ドの寿命を延長できるとともに、発熱抵抗体層の温度変
化に敏感に対応した制御を行ネうことにより、印刷”む
ら１）及び”かすれ”を少なくできる熱印刷装置を得る
ことを目的とする。This invention was made to solve the above-mentioned problems. It improves the thermal efficiency of thermal paper, extends the life of the thermal head, and provides control that sensitively responds to temperature changes in the heating resistor layer. It is an object of the present invention to provide a thermal printing device that can reduce printing "unevenness 1)" and "fading" by performing the following steps.
この発明に係る熱印刷装置は、サーマルヘッドにおける
基板の発熱抵抗体層の下部に対応する部分に断熱穴を明
け、この断熱穴部分のグレーズ層に温度検出センサを設
けたものである。The thermal printing device according to the present invention has a heat insulating hole formed in a portion of the thermal head corresponding to the lower part of the heating resistor layer of the substrate, and a temperature detection sensor is provided in the glaze layer in the heat insulating hole portion.
この発明における熱印刷装置け、基板に設けられた断熱
穴により発熱抵抗体層において、発熱した熱のグレーズ
層を介した基板への熱伝導を断熱して発熱体の蓄熱効果
を増大させ、上記断熱穴部分のグレーズ−に温度検出セ
ンサを設けることにより発熱抵抗体層の温度に敏感に対
応した印刷′ル王制御を行って・印刷の°“むら°°や
゛かすれ”を少なくすることができる。In the thermal printing apparatus of the present invention, the heat storage effect of the heating element is increased by insulating the heat conduction of the generated heat to the substrate via the glaze layer in the heating resistor layer through the heat insulation hole provided in the substrate, and the heat storage effect of the heating element is increased. By installing a temperature detection sensor in the glaze of the insulation hole, it is possible to control the printing pattern sensitively to the temperature of the heating resistor layer and to reduce unevenness and blurring of the print. can.
以下、この発明の一実権例について第１図と第２ＩｇＪ
を用いて説明する。第１図において、従来装置と同−符
号部は同一、又は相当部分を示す。ただし、温度検出セ
ンサｔ１０１が各発熱抵抗体得（４１毎に設けられてお
り、制御装置が各発熱抵抗体層（４１毎に印加電圧を制
御できるように拡張されたものである。Below, Fig. 1 and 2 IgJ will be explained regarding an example of actual ownership of this invention.
Explain using. In FIG. 1, the same reference numerals as in the conventional device indicate the same or equivalent parts. However, a temperature detection sensor t101 is provided for each heating resistor layer (41), and the control device is expanded so that the applied voltage can be controlled for each heating resistor layer (41).
８２図において、（６）は基板ｆｉ＋の各発熱抵抗体層
（４１の下部に対応する部分に明けられた断熱穴、（１
０）は各断熱穴（６）部分のグレーズ層（２）に設けら
れた温度検出センサであり、他の符号部については従来
装置と同様である。In Fig. 82, (6) indicates the insulation holes (1
0) is a temperature detection sensor provided in the glaze layer (2) in each heat insulating hole (6) portion, and other reference numerals are the same as in the conventional device.
次に動作について説明する。各発熱抵抗体層（４）の温
度を各発熱抵抗体層（４）に対応した温度検出センナ（
ｌＯ）によってそわそれ検出し、従来装置と同様にして
温度検出センサ（１０）にて検出した各発熱抵抗体１）
Ｔｈｌの温度を各発熱抵抗体−（４１毎の初期１ｆＴＯ
とみなし、電圧決定部（至）に格納さねている各発熱抵
抗体Ｒ（４）毎の初期温度Ｔｏ Ｋ対応した電圧値を算
出する。このようにして、各発熱抵抗体層（４）毎の電
圧値が決定されると、Ｄ／Ａ変換器（財）を介しパワー
アンプ型電源（至）に各発熱抵抗体層（４）毎の設定電
圧値に対応したアナログ信号が供給される。続いて、パ
ワーアンプ製電源四は、上記各発熱抵抗体層（４）毎の
アナログ信号に対応した電圧を有する駆動＠号を各発熱
抵抗Ｋ１）ｆ４＋毎に該当部に出力するので、各発熱抵
抗体層（４）けそわそれの温度に対応した印加熱エネル
ギーを受けることになり、印字”むら”及び”かすれ１
が少ない印字が得られる。但し、パワーアンプ型電源（
至）からの出力は、画像信号供給装置−からの出力信号
によって各発熱抵抗体層（４）毎にオンオフを制御され
る。Next, the operation will be explained. The temperature of each heating resistor layer (4) is measured using a temperature detection sensor (
Each heating resistor (1) was detected by the temperature detection sensor (10) in the same manner as the conventional device.
The temperature of Thl is determined by each heating resistor - (initial 1fTO for each 41
Then, a voltage value corresponding to the initial temperature ToK of each heating resistor R(4) stored in the voltage determination unit (to) is calculated. In this way, when the voltage value for each heating resistor layer (4) is determined, each heating resistor layer (4) is connected to a power amplifier type power supply (to) via a D/A converter. An analog signal corresponding to the set voltage value is supplied. Subsequently, the power amplifier made power supply 4 outputs a drive signal having a voltage corresponding to the analog signal of each heating resistor layer (4) to the corresponding part for each heating resistor K1) f4+, so that each heating resistor layer (4) has a voltage corresponding to the analog signal. The resistor layer (4) will receive applied heating energy corresponding to the temperature of the resistor layer (4), resulting in uneven printing and fading.
You can get prints with less. However, power amplifier type power supply (
The on/off state of the output from (to) is controlled for each heating resistor layer (4) by the output signal from the image signal supply device.
また、パワーアンプ型電源（至）からの印加電圧により
発熱抵抗体層（４１において発熱した熱は、熱伝導体ｐ
＋５１を介して感熱紙又はインク面に与えられルト共
に、グレーズ層（２）を介して基板ｆｌｌへも熱伝導し
ようとする。しかし、断熱穴（６）の熱伝導率か基板（
！１に比べて約１０−３程實劣るため、発熱抵抗体−（
４）から基板（！１への熱伝導を基板（１）に断熱穴（
６）を設けることにより極力小さくできる。従って、発
熱抵抗体層（４１へ印加する印加′成田が小さくてすみ
、寿命も長くなる。In addition, the heat generated in the heat generating resistor layer (41) due to the applied voltage from the power amplifier type power source (to) is transferred to the heat conductor layer (41).
The heat applied to the thermal paper or ink surface via +51 also tends to conduct heat to the substrate flll via the glaze layer (2). However, the thermal conductivity of the insulation hole (6) or the substrate (
! The heating resistor -(
4) to the board (!1) through an insulating hole (!1) in the board (1).
6), it can be made as small as possible. Therefore, the voltage applied to the heating resistor layer (41) can be small, and its life can be extended.
なお、上記実権例では各発熱抵抗体層（４１毎に温度を
検出する温度検出センサ（１０）を設けたものについて
示したが、少なくとも２つの発熱抵抗体層（４）を１つ
のグループとし、各グループ毎に温度を検出する温度検
出センサ（１０）を設け、グループ毎に印加電圧を制御
するようにしても同様の効果を奏する。In addition, in the above practical example, a temperature detection sensor (10) for detecting the temperature is provided for each heat generating resistor layer (41), but at least two heat generating resistor layers (4) are made into one group, A similar effect can be obtained by providing a temperature detection sensor (10) for detecting temperature for each group and controlling the applied voltage for each group.
以上のように、この発明によれば、基板の各発熱抵抗体
層の下部に対応する部分に断熱穴を明け、この断熱穴部
分のグレーズ層にそれぞれ温度検出センサを設けたので
サーマルヘラｒの蓄熱効果が向上し、効率良い印刷がで
きると共に、発熱抵抗体層のｍＬ層変化に敏感な発熱制
御ができるため、印刷°°むら”又は“かすれ“が生じ
にくい熱印刷装置が得られる効果がある。As described above, according to the present invention, a heat insulating hole is formed in a portion corresponding to the lower part of each heat generating resistor layer of the substrate, and a temperature detection sensor is provided in each glaze layer in the heat insulating hole portion, so that heat is stored in the thermal spatula r. The effect is improved and efficient printing is possible, as well as heat generation control that is sensitive to changes in the mL layer of the heating resistor layer, which has the effect of providing a thermal printing device that is less likely to cause printing unevenness or blurring. .
第１図はこの発明の一実楕例にょる鵬印刷装置を示す橢
Ｆｆｔ図、第２図はこの発明の一実施例による熱印刷装
置におけるサーマルヘラＦを示す断面図、第３図は従来
の熱印刷装置を示す構成図、第４図は従来の熱印刷装置
におけるサーマルヘッドを示す断面９である。
肉において、ｆｉｒは基板、（２）はグレーズ層、１３
１は発熱抵抗体層、（６）は断熱穴、 ＋１０１は温度
検出センサ。
なお、１く中、同一符号は同−又は相当部分を示す。FIG. 1 is a horizontal Fft diagram showing a thermal printing device according to an embodiment of the present invention, FIG. 2 is a sectional view showing a thermal spatula F in a thermal printing device according to an embodiment of the present invention, and FIG. 3 is a conventional FIG. 4 is a block diagram showing a thermal printing device, and is a cross section 9 showing a thermal head in a conventional thermal printing device. In meat, fir is the substrate, (2) is the glaze layer, 13
1 is a heating resistor layer, (6) is a heat insulation hole, and +101 is a temperature detection sensor. In addition, the same reference numerals indicate the same or equivalent parts.
Claims (3)
上に少なくとも発熱抵抗体層を形成させたサーマルヘッ
ドと、このサーマルヘッドを駆動する制御装置とからな
る熱印刷装置において、上記基板の上記発熱抵抗体層の
下部に対応する部分に断熱穴を明け、この断熱穴部分の
上記グレーズ層に温度検出センサを設けたことを特徴と
する熱印刷装置。(1) A thermal printing device comprising a thermal head in which a glaze layer is formed on a substrate, at least a heat generating resistor layer is formed on the glaze layer, and a control device for driving this thermal head. A thermal printing device characterized in that a heat insulating hole is formed in a portion corresponding to the lower part of the heating resistor layer, and a temperature detection sensor is provided in the glaze layer in the heat insulating hole portion.
度を検出する温度検出センサを設け、この温度検出セン
サに対応した発熱抵抗体層への印加電圧を各発熱抵抗体
層毎に制御するようにしたことを特徴とする特許請求の
範囲第１項記載の熱印刷装置。(2) A temperature detection sensor is provided for each heating resistor layer to detect the temperature of each heating resistor layer, and the voltage applied to the heating resistor layer corresponding to this temperature detection sensor is adjusted for each heating resistor layer. The thermal printing apparatus according to claim 1, characterized in that the thermal printing apparatus is controlled.
とし、この１グループ毎に温度を検出する温度検出セン
サを設け、この温度検出センサに対応したグループへの
印加電圧を各グループ毎に制御するようにしたことを特
徴とする特許請求の範囲第１項記載の熱印刷装置。(3) At least two heating resistor layers are made into one group, a temperature detection sensor for detecting temperature is provided for each group, and the voltage applied to the group corresponding to this temperature detection sensor is controlled for each group. A thermal printing apparatus according to claim 1, characterized in that the thermal printing apparatus is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4298586A JPS62199471A (en) | 1986-02-27 | 1986-02-27 | Thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4298586A JPS62199471A (en) | 1986-02-27 | 1986-02-27 | Thermal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62199471A true JPS62199471A (en) | 1987-09-03 |
Family
ID=12651327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4298586A Pending JPS62199471A (en) | 1986-02-27 | 1986-02-27 | Thermal printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62199471A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662395A1 (en) * | 1990-05-23 | 1991-11-29 | Axiohm | IMPROVEMENT TO THERMAL PRINTER HEADS. |
-
1986
- 1986-02-27 JP JP4298586A patent/JPS62199471A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662395A1 (en) * | 1990-05-23 | 1991-11-29 | Axiohm | IMPROVEMENT TO THERMAL PRINTER HEADS. |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62199471A (en) | Thermal printer | |
| JPS58201681A (en) | Thermal head control device | |
| JPH02296273A (en) | Electrophotographic system image forming device | |
| JP3439276B2 (en) | Ceramic heater | |
| JPH0193375A (en) | Thermal head | |
| JPH08174895A (en) | Thermal printer | |
| JPH0355826B2 (en) | ||
| JPH048561A (en) | Driving method for thermal head | |
| JPH0130629B2 (en) | ||
| JPH08138832A (en) | Ceramic heater and its controller | |
| JP2009076292A (en) | Heater | |
| JPS6021264A (en) | Electrode structure of thermal printer head | |
| JPS59229367A (en) | Thermal printing head | |
| JPS62264968A (en) | Image printer | |
| JPS631429Y2 (en) | ||
| TWI222551B (en) | Print control device and method of printing using the device | |
| JPH0921707A (en) | Temperature detection means, manufacture thereof and heater | |
| JPH0911523A (en) | Printing density correctable thermal printer | |
| JPH0635366A (en) | Fixing device for electrophotographic printer | |
| JPS6097872A (en) | Thermal head | |
| JPH04232764A (en) | Preheating device of thermal printer | |
| JPS6310537B2 (en) | ||
| JPS6262424B2 (en) | ||
| JPH0629839U (en) | Thermal printer | |
| JPH04102854U (en) | Electric transfer type recording device |