JPS62124965A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS62124965A
JPS62124965A JP26500485A JP26500485A JPS62124965A JP S62124965 A JPS62124965 A JP S62124965A JP 26500485 A JP26500485 A JP 26500485A JP 26500485 A JP26500485 A JP 26500485A JP S62124965 A JPS62124965 A JP S62124965A
Authority
JP
Japan
Prior art keywords
thermal head
heat generating
dots
generating resistors
printed
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
Application number
JP26500485A
Other languages
Japanese (ja)
Inventor
Ryoyu Takanashi
高梨　稜雄
Hidefumi Tanaka
英史 田中
Terumi Ohara
輝美 大原
Kenichi Miyazaki
健一 宮崎
Toshinori Takahashi
利典 高橋
Hiroki Kitamura
宏記 北村
Tadao Shinya
忠雄 新屋
Yutaka Mizoguchi
豊 溝口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP26500485A priority Critical patent/JPS62124965A/en
Publication of JPS62124965A publication Critical patent/JPS62124965A/en
Pending legal-status Critical Current

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

PURPOSE:To obtain a thermal head capable of favorably recording gradations, by setting the direction of a heat generating resistor provided between electrode parts to be diagonal relative to a sub-scanning direction. CONSTITUTION:This thermal head A comprises pairs of electrode parts 11a, 11b, ..., 12a, 12b, ... which are arranged in a linear form and heat generating resistors 13a, 13b, .... The heat generating resistors 13a, 13b, ... are inclined at an angle alpha (e.g., 45 deg.) to the recording direction (sub-scanning direction) X of the thermal head A. When electric currents are passed to the heat generating resistors 13a, 13b, ..., print dots as indicated by dotted-line circles or print dots as indicated by ellipses are formed according as the quantity of the electric current is small or large. The maximum area of each of the print dots is set to be as large as possible in such a range that the adjacent dots are not joined to each other.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば熱溶融性インク又は熱昇華性インク等
が塗布された転写紙を用いるタイプ、又は感熱紙を用い
るタイプのサーマルプリンタ装置に装着されるサーマル
ヘッドに関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention is applicable to a type of thermal printer device that uses transfer paper coated with heat-melting ink or heat-sublimable ink, or a type that uses thermal paper. This relates to a thermal head to be attached.

〔従来技術とその問題点〕[Prior art and its problems]

従来、サーマルプリンタ装置における階調記録は、印字
ドツトの面積によって濃淡表示が行なわれている。Conventionally, gradation recording in thermal printers has been performed by displaying gradations based on the area of printed dots.

従って、良質な階調記録を行なう為には、印字ドツトの
最小面積は出来るだけ小さく、そして印字ドツトの最大
面積は隣接ドツト同士がつながらない範囲で出来るだけ
大きなことが必要である。Therefore, in order to perform high-quality gradation recording, the minimum area of a printed dot must be as small as possible, and the maximum area of a printed dot must be as large as possible within a range where adjacent dots do not connect with each other.

しかるに、従来のサーマルヘッドは、例えば第２図に示
す如く構成されているので、このサーマルヘッドによる
印字ドツトの最小面積は小さいものの、最大面積を印字
した時）ておける隣接トッド同士の距離は大きく、所定
の濃度のものが得られない欠点がある。However, since the conventional thermal head is configured as shown in FIG. 2, for example, although the minimum area of the printed dots by this thermal head is small, the distance between adjacent dots (when printing the maximum area) is large. However, there is a drawback that a predetermined concentration cannot be obtained.

そこで、発熱抵抗体１ａ、ｌｂ、・・・の巾を多少大き
くして、最大面積を印字した時に隣接ドツトがつながら
ない程度まで最大面積を大きくしようとすると、最小面
積もそれだけ大きくなり、良好な階調記録を行なえない
。Therefore, if we increase the width of the heating resistors 1a, lb, etc. to increase the maximum area to such an extent that adjacent dots do not connect when the maximum area is printed, the minimum area will also increase accordingly, resulting in a good level. Unable to record.

尚、第２図中、２ａ、３ａ、２ｂ、３ｂ、　・・−は、
発熱抵抗体の両端部に構成された電極部であり、点線円
印は発熱抵抗体１ａ　、　ｌｂによる最小面積時の印字
ドツトを、点線楕円印は発熱抵抗体１ａ　、　ｌｂによ
る最大面積時の印字ドツトを示す。In addition, in Fig. 2, 2a, 3a, 2b, 3b, . . .
These are the electrode parts configured at both ends of the heating resistor, and the dotted circles indicate the dots printed at the minimum area by the heating resistors 1a, lb, and the dotted ellipses indicate the dots printed at the maximum area by the heating resistors 1a, lb. Show dots.

〔問題点を解決する為の手段〕[Means for solving problems]

本発明は上記の問題点に鑑みてなされたものであり、複
数個の発熱抵抗体を並べて構成したサーマルヘッドにお
いて、電極部間に設けられる発熱抵抗体の向きを副走査
方向に対して斜目に構成したサーマルヘッドを提供する
ものである。The present invention has been made in view of the above problems, and in a thermal head configured by arranging a plurality of heat generating resistors, the direction of the heat generating resistors provided between the electrode parts is diagonal with respect to the sub-scanning direction. The present invention provides a thermal head configured as follows.

〔実施例〕〔Example〕

第１図は、本発明に係るサーマルヘッドの１実施例の一
部の平面図である。FIG. 1 is a plan view of a portion of an embodiment of a thermal head according to the present invention.

同図中、Ａはサーマルヘッドであり、このサーマルヘッ
ドＡは、ライン状に並べて設けられた一対の電極部１１
ａ、ｌｌｂ、　−、１２ａ、１２ｂ、　・”と、これら
一対の電極部１１ａ、ｌｌｂ、・・・と電極部１２ａ、
１２ｂ、・・・との間に設けられた発熱抵抗体１３ａ　
、　１３ｂ　、　　・・・とから構成されており、この
発熱抵抗体１３ａ　、　１３ｂ　、・・・がサーマルヘ
ッドＡによる記録方向（副走査方向）Ｘに対して角度α
（例えば約４５°）　傾いたように構成されている点に
特徴がある。In the figure, A is a thermal head, and this thermal head A includes a pair of electrode parts 11 arranged in a line.
a, llb, -, 12a, 12b, .'', these pair of electrode parts 11a, llb, . . . and electrode part 12a,
The heating resistor 13a provided between the heating resistor 12b, . . .
, 13b, . . . The heating resistors 13a, 13b, . . . make an angle α with respect to the recording direction (sub-scanning direction)
(For example, about 45 degrees) It is distinctive in that it is constructed in an inclined manner.

上記のようにサーマルヘッドが構成されていると、金型
極部１１ａ、ｌｌｂ、・・・と電極部１２ａ、１２ｂ、
・・・との間に電圧を加えて発熱抵抗体１３ａ　、　１
３ｂ　、・・・に電流を流したとすると、電流量が少な
い場合には第１図中点線円印で示すような印字ドツトが
形成され、そして電流量が多い場合には第１図中点線楕
円印で示すような印字ドツトが形成されるようになる。When the thermal head is configured as described above, the mold pole parts 11a, llb, . . . and the electrode parts 12a, 12b,
... by applying a voltage between the heating resistors 13a, 1
3b,..., if the amount of current is small, a printed dot as shown by the dotted circle in Figure 1 will be formed, and if the amount of current is large, the dotted line in Figure 1 will be formed. Printed dots as shown by oval marks are now formed.

この第１図中に示した点線円印及び点線楕円印の印字ド
ツトと第２図中に示した点線円印及び点線楕円印の印字
ドツトとを比較すると、点線円印の印字ドツトは発熱抵
抗体の向きによらず同じであるのに対し、点線楕円印の
印字ドツトは、面積が同じなるも、本発明によるサーマ
ルヘッドの場合には発熱抵抗体１３ａ、１３ｂ、・・・
が傾いている分斜目に傾いており、従って本発明になる
サーマルヘッドの発熱抵抗体１３ａ　、　１３ｂ、・・
・に大電流を流した場合に得られる印字ドツトは、それ
だけ横に拡がったものとなり、そして横に拡がったよう
になるものの隣接ドツト同士はつながらないものである
。Comparing the printed dots of the dotted circle mark and dotted oval mark shown in Fig. 1 with the printed dots of the dotted line circle mark and dotted line oval mark shown in Fig. 2, it is found that the printed dot of the dotted line circle mark is a heating resistor. In contrast, the dotted oval printed dots have the same area regardless of the orientation of the body, but in the case of the thermal head according to the present invention, the heating resistors 13a, 13b, . . .
The heating resistors 13a, 13b, .
The printed dots obtained when a large current is passed through the dots are spread out horizontally, and although they appear to be spread out horizontally, adjacent dots are not connected to each other.

すなわち、上記のように構成されたサーマルヘッドによ
れば、印字ドツトの最小面積は出来るだけ小さく、そし
て印字ドツトの最大面積は隣接ドツト同士がつながらな
い範囲で出来るだけ大きなという条件を満足できるよう
になり、良質な階調記録を行なえるのである。In other words, with the thermal head configured as described above, the minimum area of a printed dot can be as small as possible, and the maximum area of a printed dot can be as large as possible without connecting adjacent dots. , high-quality gradation recording can be performed.

〔効果〕〔effect〕

本発明に係るサーマルヘッドは、複数個の発熱抵抗体を
並べて構成したサーマルヘッドにおいて、電極部間に設
けられる発熱抵抗体の向きを副走査方向に対して斜目に
構成したので、発熱抵抗体に流される電流量が少ない場
合には、印字ドツトの面積量は少なく、そして発熱抵抗
体に流される電流量が多い場合には、隣接印字ドツトが
つながらない程度で横に広く、かつ面積量が多いように
なり、良好な階調記録を行なえ、しかもこのような良好
な階調記録を行なう為の構成は極めて簡単なものである
等の特長を有する。In the thermal head according to the present invention, in the thermal head configured by arranging a plurality of heat generating resistors, the heat generating resistors provided between the electrode parts are configured to be oriented diagonally with respect to the sub-scanning direction. When the amount of current flowing through the heating resistor is small, the area of the printed dot is small, and when the amount of current flowing through the heating resistor is large, the printed dot is wide horizontally and has a large area so that adjacent printed dots are not connected. Thus, it is possible to perform good gradation recording, and the structure for performing such good gradation recording is extremely simple.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明に係るサーマルヘッドの１実施例の一部
の平面図、第２図は従来のサーマルヘッドの一部の平面
図である。 １１ａ、ｌｌｂ、１２ａ、１２ｂ−電極部、１３ａ、１
３ｂ−発熱抵抗体。 特許出願人　　日本ビクター株式会社 ＋’　−−，。 才　２　因FIG. 1 is a plan view of a portion of an embodiment of a thermal head according to the present invention, and FIG. 2 is a plan view of a portion of a conventional thermal head. 11a, llb, 12a, 12b-electrode part, 13a, 1
3b-Heating resistor. Patent applicant: Victor Japan Co., Ltd. +' --. talent 2 cause

Claims (1)

【特許請求の範囲】[Claims] 複数個の発熱抵抗体を並べて構成したサーマルヘッドに
おいて、電極部間に設けられる発熱抵抗体の向きを副走
査方向に対して斜目に構成したことを特徴とするサーマ
ルヘッド。1. A thermal head comprising a plurality of heat generating resistors arranged side by side, characterized in that the heat generating resistors provided between electrode portions are oriented diagonally with respect to the sub-scanning direction.
JP26500485A 1985-11-27 1985-11-27 Thermal head Pending JPS62124965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26500485A JPS62124965A (en) 1985-11-27 1985-11-27 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26500485A JPS62124965A (en) 1985-11-27 1985-11-27 Thermal head

Publications (1)

Publication Number Publication Date
JPS62124965A true JPS62124965A (en) 1987-06-06

Family

ID=17411230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26500485A Pending JPS62124965A (en) 1985-11-27 1985-11-27 Thermal head

Country Status (1)

Country Link
JP (1) JPS62124965A (en)

Similar Documents

Publication Publication Date Title
JPS62124965A (en) Thermal head
JPS62138289A (en) Printing method
JPS62130860A (en) Thermal head
US4723130A (en) Thermal printhead
JPS61164854A (en) Thermal head
JPS61293871A (en) Thin film type thermal head
JP3017550B2 (en) Thermal head
JPS5942979A (en) Thermal head
JPS59178267A (en) Thermal head
JPS5653081A (en) Thermal print head
JPS59178268A (en) Thermal head
JPH0518146Y2 (en)
JPS63179767A (en) Electrode construction for electrothermal transfer
JPH03272867A (en) Thermal head
JPS6349452A (en) Thermal head
JPS60162663A (en) Thermal head
JPH0632935B2 (en) Thermal head
JPH0518145Y2 (en)
JPH03143643A (en) Driving of thermal head
JPS58163679A (en) Thermal head
JPS6071269A (en) Thermal recording head
JPH02117856A (en) Thermal head
JPS63149165A (en) Thick-film thermal head
JPS6384950A (en) Constant current drive of electrothermal transfer recorder
JPS6072753A (en) Thermal head