JPS61148077A - Printer - Google Patents

Abstract

PURPOSE:To miniaturize driving circuit, by driving a printing head and a platen so that the kinetic energy of the head and the kinetic energy of the platen become substantially equal to each other at the moment of collision when print ing. CONSTITUTION:When a printing command is outputted from a printing- controlling circuit 1 to a printing head driving circuit 4 and a platen-driving circuit 5, the circuits 4, 5 pass predetermined currents respectively to coils 6, 7, thereby driving the printing head 2 and the platen 3. The head 2 and the platen 3 are so driven that the kinetic energy of the head 2 and the kinetic energy of the platen become substantially equal to each other at the moment of collision, and they collide against each other with an ink ribbon 10 and a paper 11 clamped therebetween. Accordingly, a reduction in the size of a driver for the printing head or the like can be contrived, vibrations in paper feeding and vertical vibrations are reduced, and printing quality is enhanced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、インパクト型プリンタに関し、特に駆動装置
を小型化した印刷装置に係る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an impact printer, and particularly to a printing device with a downsized drive device.

〔従来の技術〕[Conventional technology]

電子計算機に使用される出力装置であるプリンタ装置は
、近年、特に高速化が要求されるようになった。In recent years, printer devices, which are output devices used in electronic computers, have been particularly required to be faster.

高速で印字を行うためには、インパクト型プリンタにお
いては、印字ヘッドを高速で駆動することが必要である
。In order to print at high speed, it is necessary for impact printers to drive the print head at high speed.

しかしながら、高速で駆動を行うためには、短い時間で
所定の印字エネμギを得るだけの速度を出すことが要求
されることから、駆動回路の大型化、及び供給電源部を
含む周辺機構も大型化しているのが現状である。However, in order to perform high-speed driving, it is necessary to generate a speed sufficient to obtain a predetermined printing energy μ in a short time, which requires an increase in the size of the drive circuit and the peripheral mechanisms including the power supply section. The current situation is that they are becoming larger.

〔本発明が解決しようとする問題点〕[Problems to be solved by the present invention]

本発明では、かかる状況に鑑み、小型に実現できる印字
装置を提供することを目的とする。In view of this situation, it is an object of the present invention to provide a printing device that can be realized in a small size.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

本発明においては、印字ヘッドのみを駆動するのではな
く、プラテンも同時に駆動し、両者を衝突させて印字さ
せるようにしたものである。In the present invention, not only the print head is driven, but the platen is also driven at the same time, and the two collide with each other to print.

〔作用〕[Effect]

印字ヘッドとプラテンの衝突時に、運動エネルギが同一
となるように駆動すれば、各々の所要工ネｙギは１／２
ですみ、駆動回路は小型化しうる。If the print head and platen are driven so that the kinetic energy is the same when they collide, the required labor time for each will be reduced to 1/2.
Therefore, the drive circuit can be made smaller.

駆動回路は従来に比して２台必要となるが、駆動エネμ
ギが１／２ですむことから、その設計は格段に容易とな
る。Two drive circuits are required compared to the conventional method, but the drive energy μ
Since the amount of energy required is reduced to 1/2, the design becomes much easier.

更に、ハンマストロークが約１／２ですむとともに１用
紙の送シ方向と垂直方向の振れが少なくなシ、高品質の
印字が得られるようになる。Furthermore, the hammer stroke is reduced to about 1/2, and there is less vibration in the direction perpendicular to the feeding direction of one sheet, resulting in high quality printing.

〔実施例〕〔Example〕

第１図に本発明の一実施例を示す。 FIG. 1 shows an embodiment of the present invention.

本図において、１は印字制御回路、２は印字ヘッド、８
はプラテン、４は印字ヘッド駆動回路、５はプラテン駆
動回路、６．７はコイμ、８，９は電源、１０はインク
リボン、１１は用紙である。In this figure, 1 is a print control circuit, 2 is a print head, and 8
1 is a platen, 4 is a print head drive circuit, 5 is a platen drive circuit, 6.7 is a coil μ, 8 and 9 are power supplies, 10 is an ink ribbon, and 11 is paper.

印字制御回路１は、それぞれ印字ヘッド駆動回路４とプ
ラテン駆動回路６に印字指令信号を送出する。この印字
指令信号をそれぞれ入力した印字ヘッド駆動回路４、プ
ラテン駆動回路５は、コイｌｖ６，７に所定電流を流す
ことによシ、印字ヘッド２、プラテン８を駆動する。Print control circuit 1 sends print command signals to print head drive circuit 4 and platen drive circuit 6, respectively. The print head drive circuit 4 and the platen drive circuit 5, each receiving the print command signal, drive the print head 2 and the platen 8 by passing a predetermined current through the coils lv6 and lv7.

このときの電流は、電源８．９によって供給する。印字
ヘッド２とプラテン８は、衝突時にそれぞれ運動エネμ
ギが同一になるように駆動され、インクリボン１０と用
紙１１をはさんで衝突し、印字動作を行うものである。The current at this time is supplied by a power source 8.9. The print head 2 and the platen 8 each receive kinetic energy μ at the time of collision.
The ink ribbons 10 and 11 are driven so that they are the same and collide with each other across the ink ribbon 10 and the paper 11 to perform a printing operation.

第２図に本発明の他の実施例を示す。FIG. 2 shows another embodiment of the invention.

本図において、第１図と同一符号は同一部位を示し、印
字制御回路、駆動回路、電源は省略した。In this figure, the same symbols as in FIG. 1 indicate the same parts, and the print control circuit, drive circuit, and power supply are omitted.

本図のように印字ヘッド、プラテンの組１２と１８をそ
れぞれ逆に配置し、インクリボンを本図のように配置す
れば、用紙１１に両面印刷が可能となる。If the print head and platen sets 12 and 18 are arranged in reverse as shown in this figure, and the ink ribbon is arranged as shown in this figure, it is possible to print on both sides of the paper 11.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、印字ヘッド等の駆動装置の小型がはか
れるとともに、用紙送シと垂直方向の振れが少なくなシ
１．印字品質が向上する。According to the present invention, the driving device such as the print head can be made smaller, and the vibration in the vertical direction relative to paper feeding can be reduced.1. Print quality improves.

更に、本発明の構成を基本とすることにより、両面印刷
が可能となる。Furthermore, by using the configuration of the present invention as a basis, double-sided printing becomes possible.

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

第１図、第２図は本発明の実施例を示すものである。 図において、１は印字制御回路、２は印字ヘッド、８は
プラテン、４は印字ヘッド駆動回路、５はプラテン駆動
回路、６，７はコイμ、８，９は電源、１０はインクリ
ボン、１１は用紙であるＯ第１図 ｔＸ　２　図1 and 2 show an embodiment of the present invention. In the figure, 1 is a print control circuit, 2 is a print head, 8 is a platen, 4 is a print head drive circuit, 5 is a platen drive circuit, 6 and 7 are coil μ, 8 and 9 are power sources, 10 is an ink ribbon, 11 is a sheet of paperOFig. 1tX 2Fig.

Claims (1)

【特許請求の範囲】[Claims] 印字ヘッドのインパクトによって印字を行うインパクト
型プリンタにおいて、印字指令を出力する印字制御回路
と、該印字指令を受けて印字ヘッドを駆動する印字ヘッ
ド駆動回路と、該印字ヘッドに対向して配置されるプラ
テンと、該印字指令を受けて該プラテンを該印字ヘッド
に衝突させるように駆動するプラテン駆動回路を有し、
該印字ヘッドと該プラテンの運動エネルギーが衝突時に
略同一となるように駆動して印字を行うことを特徴とす
る印刷装置。In an impact printer that prints by the impact of a print head, there is a print control circuit that outputs a print command, a print head drive circuit that receives the print command and drives the print head, and is arranged opposite to the print head. It has a platen and a platen drive circuit that receives the print command and drives the platen to collide with the print head,
A printing apparatus characterized in that printing is performed by driving such that the kinetic energies of the print head and the platen are substantially the same at the time of collision.