JPH0289657A - Thermal printer - Google Patents
Thermal printerInfo
- Publication number
- JPH0289657A JPH0289657A JP63242808A JP24280888A JPH0289657A JP H0289657 A JPH0289657 A JP H0289657A JP 63242808 A JP63242808 A JP 63242808A JP 24280888 A JP24280888 A JP 24280888A JP H0289657 A JPH0289657 A JP H0289657A
- Authority
- JP
- Japan
- Prior art keywords
- head
- thermal
- timing
- feed
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 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
- B41J2/35—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
- B41J2/355—Control circuits for heating-element selection
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、発熱抵抗体を縦方向に配列したサーマルヘッ
ドによって文字および図形を印字するサマルプリンタに
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal printer that prints characters and graphics using a thermal head in which heating resistors are arranged vertically.
［従来の技術］
従来のサーマルプリンタは第４図の様に、発熱抵抗体を
縦方向に配列したサーマルヘッドにより文字や図形で印
刷していた。その動作タイミングを第５図にしたがって
説明する。Ｔはタイミングパルスであり、プリンクはこ
のタイミングにしたがい印字する。ここでは°゛８”の
文字を印字するものとする。タイミングパルスＴの１発
註で第１列を構成する２、３．５．６番目の発熱抵抗体
が駆動される。同様に第２列では１．４．７番目の発熱
抵抗体が駆動され、第５列までで“°８゛°の文字を印
字する。[Prior Art] As shown in FIG. 4, a conventional thermal printer prints characters and figures using a thermal head in which heating resistors are arranged vertically. The operation timing will be explained with reference to FIG. T is a timing pulse, and printing is performed according to this timing. In this case, it is assumed that the character ``8'' is printed.The second, third, fifth, and sixth heating resistors that make up the first row are driven by one timing pulse T.Similarly, the second The 1st, 4th, and 7th heating resistors in the rows are driven, and characters of "°8" are printed up to the 5th row.
［発明が解決しようとする課題］
しかし従来のサーマルプリンタでは文字および図形によ
っては同時に全ての発熱抵抗体を駆動する事があった０
発熱抵抗体は電気抵抗値が小さいため、全ての発熱抵抗
体を駆動すると、数アンペアもの電流が流れる。このた
め電源回路を大きくしたり、配線材料を大きくするなど
回路が大規模になり、プリンタの小型化の妨げとなって
いた。[Problem to be solved by the invention] However, in conventional thermal printers, all heating resistors may be driven at the same time depending on the characters and graphics.
Since the heating resistors have a small electrical resistance value, if all the heating resistors are driven, a current of several amperes will flow. For this reason, the circuits have become large-scale, such as by increasing the size of the power supply circuit and the wiring material, which has hindered the miniaturization of printers.
本発明はこの様な問題点を解決するものであり、その目
的は発熱抵抗体を数ブロックに分はヘッド送り方向にず
らして配置し、順次駆動させる事により、ヘッド駆動等
のピーク電流を減少させて電源および周辺回路を小さく
し、プリンタの小型化を可能にするものである。The present invention solves these problems, and its purpose is to reduce the peak current for head drive, etc. by arranging heat generating resistors in several blocks shifted in the head feeding direction and driving them sequentially. This makes it possible to reduce the size of the power supply and peripheral circuits, thereby making it possible to downsize the printer.
［課題を解決するための手段１
本発明のサーマルプリンタは発熱抵抗体を縦方向に配列
したサーマルヘッドと、１ｉｉｉ記発熱抵抗体を駆動す
るドライバと、前記サーマルヘッドを動かすヘッド移動
機構と、紙送り機構と、制御ブロックとから成るサーマ
ルプリンタに於いて、前記サーマルヘッド内の発熱抵抗
体が故ブロックに分けられ各ブロックがヘッド送り方向
にずらして配置され、前記発熱抵抗体の各ブロックがヘ
ッド送り方向に対し、順次駆動される事を特徴とする。[Means for Solving the Problems 1] The thermal printer of the present invention includes a thermal head in which heating resistors are arranged vertically, a driver for driving the heating resistors described in (iii), a head moving mechanism for moving the thermal head, and a paper head. In a thermal printer consisting of a feeding mechanism and a control block, the heating resistor in the thermal head is divided into blocks, each block is arranged offset in the head feeding direction, and each block of the heating resistor It is characterized by being driven sequentially in the feeding direction.
〔実 施 例］
第１図は本発明の実施例におけるブロック図である。ｌ
の制（卸ブロックは文字や図形を５のタイミンク信号発
生器のタイミングにより、４のヘッド送り＋［でヘッド
を送りなから２のドライバを介し、３のサーマルヘッド
を駆動している０本実施例のサーマルヘッドは第２図の
様に２ブロツクに分けられ、ヘッド送り方向に対し半ド
ツト分ずらして配置されているものとする１本実施例の
サマルプリンタの印字タイミングを第３図に従って説明
する。Ｔはクイ２ングパルスであり、プリンタはこのタ
イミングに従い印字する。ここでは°８”の文字を印字
するものとする。タイミングパルスａの１番目の立ち上
りで第１列を構成する２、３．５．６番目の発熱抵抗体
のうちヘッド送り方向で先にくるブロックの２．３番目
をまず駆動する。ヘッドが送られて半ドツト分進んだ時
、すなわちタイミングパルスの立ち下がりで残りの５．
６番目の発熱抵抗体を駆動する。この結果２．３．５．
６番目のドツトはサーマル紙上で１列に印字される。同
様に第５列までで“８°゛の文字を印字する０本実施例
では２分割としたためピーク電流は従来の半分になる。[Embodiment] FIG. 1 is a block diagram in an embodiment of the present invention. l
control (the wholesale block is used to move characters and figures according to the timing of the timing signal generator in step 5, and the head is not sent in step 4 and then the thermal head in step 3 is driven via the driver in step 2. The thermal head in this example is divided into two blocks as shown in Fig. 2, and the blocks are arranged offset by half a dot with respect to the head feeding direction.The printing timing of the thermal printer in this example will be explained according to Fig. 3. .T is a quick 2nd pulse, and the printer prints according to this timing.Here, it is assumed that the character 8" is to be printed.At the first rising edge of timing pulse a, 2 and 3 forming the first column are printed. .5.Of the 6th heating resistors, the 2nd and 3rd blocks that come first in the head feeding direction are driven first.When the head is fed and has advanced half a dot, that is, at the falling edge of the timing pulse, the remaining 5.
Drive the sixth heating resistor. This result 2.3.5.
The sixth dot is printed in a row on the thermal paper. Similarly, in this embodiment in which characters of "8°" are printed up to the fifth column, the peak current is half that of the conventional one because it is divided into two parts.
［発明の効果］
以上述べた様に、本発明によれば、発熱抵抗体を数ブロ
ックに分はヘッド送り方向にずらして配置し、順次駆動
させる事により、ヘッド駆動等のピーク電流を減少させ
て回路を小さくし、ブリンクを小型化を可能にする効果
を有する。[Effects of the Invention] As described above, according to the present invention, the peak current for head drive etc. can be reduced by arranging the heat generating resistors shifted in the head feeding direction by several blocks and driving them sequentially. This has the effect of making the circuit smaller and making it possible to make the blink smaller.
第１図は本発明によるサーマルプリンタの実施例に於け
るブロック図。
第２図は本発明によるサーマルプリンタの実施例に於け
るサーマルヘッドの発熱抵抗体配置図。
第３図は本発明によるサーマルプリンタの実施例に於け
る印字タイミング図。
第４図は従来の技術によるサーマルヘッドの発熱抵抗体
配置図。
第５図は従来の技術によるサーマルプリンタの印字タイ
ミング図。
以上
譬２）刀
第３切
箋４−１図
繁り１■FIG. 1 is a block diagram of an embodiment of a thermal printer according to the present invention. FIG. 2 is a layout diagram of heating resistors of a thermal head in an embodiment of a thermal printer according to the present invention. FIG. 3 is a printing timing chart in an embodiment of the thermal printer according to the present invention. FIG. 4 is a diagram showing the arrangement of heating resistors in a thermal head according to the prior art. FIG. 5 is a printing timing diagram of a thermal printer according to the conventional technology. Parable 2) Sword No. 3 Paper 4-1 Illustration 1■
Claims (1)
発熱抵抗体を駆動するドライバと、前記サーマルヘッド
を動かすヘッド移動機構と、紙送り機構と、制御ブロッ
クとから成るサーマルプリンタに於いて、前記サーマル
ヘッド内の発熱抵抗体が数ブロックに分けられ各ブロッ
クがヘッド送り方向にずらして配置され、前記発熱体の
各ブロックがヘッド送り方向に対し、順次駆動される事
を特徴とするサーマルプリンタ。In the thermal printer comprising a thermal head in which heating resistors are arranged vertically, a driver for driving the heating resistor, a head moving mechanism for moving the thermal head, a paper feeding mechanism, and a control block, A thermal printer characterized in that a heating resistor in a thermal head is divided into several blocks, each block is arranged offset in a head feeding direction, and each block of the heating element is sequentially driven in the head feeding direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63242808A JPH0289657A (en) | 1988-09-28 | 1988-09-28 | Thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63242808A JPH0289657A (en) | 1988-09-28 | 1988-09-28 | Thermal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0289657A true JPH0289657A (en) | 1990-03-29 |
Family
ID=17094595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63242808A Pending JPH0289657A (en) | 1988-09-28 | 1988-09-28 | Thermal printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0289657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3363785A1 (en) | 2013-03-05 | 2018-08-22 | Asahi Kasei Chemicals Corporation | Isothiocyanate production methods |
-
1988
- 1988-09-28 JP JP63242808A patent/JPH0289657A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3363785A1 (en) | 2013-03-05 | 2018-08-22 | Asahi Kasei Chemicals Corporation | Isothiocyanate production methods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4470056A (en) | Controlling a multi-wire printhead | |
| JPS55131882A (en) | Electronic equipment | |
| EP0118130A2 (en) | Thermal printing method and thermal printer | |
| JPH0289657A (en) | Thermal printer | |
| JPH0311273B2 (en) | ||
| JPS6440345A (en) | Wire dot printer | |
| JPS6367163A (en) | Printing method by serial thermal printer | |
| EP1127697A2 (en) | Current supply control method for line thermal head | |
| JPS6042070A (en) | Thermal recorder | |
| JPS63112160A (en) | Setting dimension controller for dot printer | |
| JPS61149376A (en) | Printer | |
| JPH0367508B2 (en) | ||
| JPS6384951A (en) | Thermal printer | |
| JPS6250153A (en) | Thermal printing apparatus | |
| JPS6359573A (en) | Wire dot matrix printer | |
| JPS58197069A (en) | Control system on heat-sensitive printing head | |
| JPS60107365A (en) | Thermal head | |
| JPS59120472A (en) | Thermal printing head | |
| JPS5839073B2 (en) | dot printer no. | |
| JPS5942979A (en) | Thermal head | |
| JPS6360770A (en) | Electrothermal recorder | |
| JPS625857A (en) | Printing head for dot printer | |
| JPS5682273A (en) | Printing system | |
| JPS61202571A (en) | Recording device | |
| JPH01188372A (en) | Bar code printer |