JPS5973979A - Automatic printing regulation mechanism - Google Patents

Automatic printing regulation mechanism

Info

Publication number
JPS5973979A
JPS5973979A JP18553582A JP18553582A JPS5973979A JP S5973979 A JPS5973979 A JP S5973979A JP 18553582 A JP18553582 A JP 18553582A JP 18553582 A JP18553582 A JP 18553582A JP S5973979 A JPS5973979 A JP S5973979A
Authority
JP
Japan
Prior art keywords
hammer
type drum
counter
type
difference
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
JP18553582A
Other languages
Japanese (ja)
Inventor
Mototsugu Sato
佐藤 元次
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18553582A priority Critical patent/JPS5973979A/en
Publication of JPS5973979A publication Critical patent/JPS5973979A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00Hammer-impression mechanisms

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To align printed characters on one straight line while aligning impact timings of all hammers, by a method wherein elements each for detecting the impact timing of each hammer are provided on a type drum and the flight time of the hammer is regulated. CONSTITUTION:Piezoelectric elements 7 each corresponding to one line are embedded in the type drum of a type line printer corresponding to each figure to fabricate a maintenance command. The operation of the maintenance command prints the part of the piezoelectric element 7 at every one figure and repeated to the max. numbers of figures of the apparatus. When a magnet is excited at every each figure by this operation, the count-up of a counter 10 is started by the signal from a control circuit 13 and, when the piezoelectric element 7 of the type drum 1 is struck by a hammer 5, the counter 10 is stopped through rotary shaft and a brush 9. The difference of the value of the counter 10 at this time and a reference flight time value is taken by difference circuit 11 and an exciting drive power source 6 is driven by timing shifted corresponding to the difference value thereof.

Description

【発明の詳細な説明】 (1)発明の技術分野 本発明は活字式ラインプリンタ装置のマグネットハンマ
ーのフラー1 トタイムのズレ量の自動調整に、関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to automatic adjustment of the amount of deviation in the flutter time of a magnetic hammer in a type line printer.

(2)技術の背景及び従来技術と問題点活字ドラム式プ
リンタはマグネットにより駆動されるハンマーがインク
リボンを叩き、インクリボンと活字ドラム間にある印刷
用紙にハンマが丁度叩かれた時、ハンマ上に位置する活
字ドラム上の活字が用紙に印字される。第1図に従来の
活字ドラム式プリンタ装置の概念図を示す。
(2) Background of the technology, conventional technology, and problems In type drum printers, a hammer driven by a magnet strikes the ink ribbon, and when the hammer hits the printing paper between the ink ribbon and the type drum, the hammer hits the printing paper between the ink ribbon and the type drum. The type on the type drum located at is printed on the paper. FIG. 1 shows a conceptual diagram of a conventional type drum printer.

第1図において1が活字ドラムであり、2がインクリボ
ンであり、3がドラム回転軸であり、4が励磁コイルで
あり、5が印字ハンマーである。
In FIG. 1, 1 is a type drum, 2 is an ink ribbon, 3 is a drum rotating shaft, 4 is an excitation coil, and 5 is a printing hammer.

一般にマグネットの励磁コイル4が励磁されてからハン
マー5が活字ドラム1を叩くまでの時間をフライトタイ
ムと称する。
Generally, the time from when the excitation coil 4 of the magnet is excited until the hammer 5 hits the type drum 1 is called flight time.

このフライトタイムはマグネット、ハンマー5の製造上
のバラツキ等の原因によシ、きわめて多くのバラツキが
発生するのが通常であった。
This flight time normally has a large amount of variation due to manufacturing variations in the magnet and hammer 5, etc.

そのため印字の打鍵むらが生じ、印字が用紙上で一直線
上に並ばず、読みすらいものになる欠点があった。
This resulted in uneven printing, and the printing did not line up in a straight line on the paper, making it difficult to read.

(3)  発明の目的 本発明の目的は、活字ドラム式プリンタ装置において、
印字の1鍵ムラを修正し、もって印字ムラをなくシ、プ
リンタ装置の印字品質を向上させることにある。
(3) Purpose of the Invention The purpose of the present invention is to provide a type drum type printer device.
To improve the printing quality of a printer device by correcting one-key printing unevenness and thereby eliminating printing unevenness.

(4)発明の構成 本発明はマグネットハンマーの打鍵タイミングを活字ド
ラム上の正直素子に感知させて、マグネットハンマーの
打鍵タイミングを得、よってマグネット励磁タイミング
を自動調整することにより、プリントハンマーのフライ
トムラをなくしたことに特敵がある。
(4) Structure of the Invention The present invention detects the keystroke timing of the magnetic hammer with an honest element on the type drum to obtain the keystroke timing of the magnetic hammer.Therefore, by automatically adjusting the magnet excitation timing, flight irregularities of the print hammer can be eliminated. There is a special enemy in losing the .

(5)発明の実施列 以下本発明の実施例を第2図にそって詳しく説明する。(5) Implementation sequence of the invention Embodiments of the present invention will be described in detail below with reference to FIG.

第2図において1かも6までは第1図で説明したとおり
である。6はマグネットの励磁電流源である。励磁電流
dα6は制御回路13で制御されて、励磁コイルに励磁
電流を流しマグネットを励磁する。7はドラム上の圧電
素子であり、ハンマー5がそこを叩くと′電流を発生し
、その電流は回転軸3ケヘ゛C8のバスを経由して制御
回路13に送られる。マグネット制御回路13は7の圧
′屯素子からの信号により実際のハンマー打鍵タイミン
グを知ることができ、そのタイミングによりフライトタ
イムの設計呟とのズレを知り、そのズレ信号からマグネ
ットの励磁タイミングを自動的に修正するようにすれば
完全にフライトズレのない活字ドラムが得られる。
In FIG. 2, steps 1 through 6 are as explained in FIG. 1. 6 is an excitation current source for the magnet. The excitation current dα6 is controlled by the control circuit 13, and causes the excitation current to flow through the excitation coil to excite the magnet. Reference numeral 7 designates a piezoelectric element on the drum, and when the hammer 5 hits it, it generates a current, which is sent to the control circuit 13 via the bus of the rotating shaft 3 and C8. The magnet control circuit 13 can know the actual hammer keying timing from the signal from the pressure element 7. From this timing, it knows the deviation from the flight time design and automatically adjusts the magnet excitation timing from the deviation signal. If you make the correct correction, you can obtain a type drum that is completely free of flight deviation.

第3図に本願の回路を中心とした自動印字調整機構を示
す。図で1は活字ドラム、7は圧電素子、9はブラシ、
10はカウンター、11は差分回路、12はメモリーで
ある。
FIG. 3 shows an automatic print adjustment mechanism centered on the circuit of the present application. In the figure, 1 is a type drum, 7 is a piezoelectric element, 9 is a brush,
10 is a counter, 11 is a differential circuit, and 12 is a memory.

活字ドラムlK1行分の圧電素子7を各桁対応に埋めこ
み保守コマンドを作成する。
A maintenance command is created by embedding the piezoelectric elements 7 for one line of the type drum lK corresponding to each digit.

保守コマンドの動作は1桁ずつ圧電素子7の部分を印字
し、装置の最大桁数まで動作を繰υ返す。
The maintenance command operation prints the piezoelectric element 7 one digit at a time, and repeats the operation until the maximum number of digits of the device is reached.

この動作により各桁毎にマグネットを励磁した時制御回
路13からの信号で、カウンタ10のカウントアツプを
開始し、ハンマーが活字ドラム1の圧−素子フを打った
時、回転軸3.ブラシ9を介してカウンタ10をストッ
プする。
When the magnet is excited for each digit by this operation, the counter 10 starts counting up in response to a signal from the control circuit 13, and when the hammer hits the pressure element of the type drum 1, the rotary shaft 3. The counter 10 is stopped via the brush 9.

その時のカウンタ10の値と標準フライトタイム値との
差分を差分回路11で取り、各桁毎に差分値をメモリー
12上に記憶する。その値を実際の印刷動作時の励磁時
間に反映させる。
A difference circuit 11 calculates the difference between the value of the counter 10 at that time and the standard flight time value, and stores the difference value in the memory 12 for each digit. The value is reflected in the excitation time during actual printing operation.

即ち、保守用動作が終了し、通常O動作に移ると、印字
桁に対応して制御回路13はメモリー12よシ差分値を
読出し、その差分値分だけずらせだタイミングで第2図
の励磁電流源6を駆動する。
That is, when the maintenance operation is completed and the normal O operation is started, the control circuit 13 reads the difference value from the memory 12 in accordance with the printed digit, and at a timing shifted by the difference value, the excitation current shown in FIG. power source 6.

これにより活字ドラムlに対するハンマーの打鍵タイミ
ングは各tiで同一となシ、同紙上では印字が直線状に
並び、印字品質が均一となって読み易くなる。
As a result, the timing of the hammer hitting the type drum 1 is the same for each ti, and the printed characters are arranged in a straight line on the same paper, making the printing quality uniform and easy to read.

(6)発明の効果 本発明により印字ムラがなくなシ均一な筒印字品質とな
る。
(6) Effects of the Invention The present invention eliminates printing unevenness and provides uniform cylinder printing quality.

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

第1図は従来のプリンタの概念構成を示す図、第2図、
第3図は本発明によるフライトタイム検出による自動印
字調整4歳1走を有するプリンタ装置である。 l二γ占字ドラム 2:インクリボン 3:(8字ドラム回転軸 4;ハンマ駆動マグネット 6:印字ハ/7 6:マグネット駆動 ツ;圧電素子 8:フライトタイミング信号フィードバックバス 9:ブラシ 10:カウンタ 11:差分回路 12:メモリー
Figure 1 is a diagram showing the conceptual configuration of a conventional printer; Figure 2;
FIG. 3 shows a printer device having automatic print adjustment based on flight time detection according to the present invention. l2γ Divination drum 2: Ink ribbon 3: (8-character drum rotation axis 4; Hammer drive magnet 6: Printing c/7 6: Magnet drive 2; Piezoelectric element 8: Flight timing signal feedback bus 9: Brush 10: Counter 11: Differential circuit 12: Memory

Claims (1)

【特許請求の範囲】[Claims] 活字ドラム式プリンタ装置において、マグネットハンマ
の打鍵タイミングを検出する素子を活字ドラム上に設け
、上7Q素子からの信号にもとづいてハンマのフライト
・タイムを調整することを特徴とする自動印字調整機構
An automatic print adjustment mechanism in a type drum type printer device, characterized in that an element for detecting the keystroke timing of a magnetic hammer is provided on the type drum, and the flight time of the hammer is adjusted based on a signal from an upper 7Q element.
JP18553582A 1982-10-22 1982-10-22 Automatic printing regulation mechanism Pending JPS5973979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18553582A JPS5973979A (en) 1982-10-22 1982-10-22 Automatic printing regulation mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18553582A JPS5973979A (en) 1982-10-22 1982-10-22 Automatic printing regulation mechanism

Publications (1)

Publication Number Publication Date
JPS5973979A true JPS5973979A (en) 1984-04-26

Family

ID=16172500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18553582A Pending JPS5973979A (en) 1982-10-22 1982-10-22 Automatic printing regulation mechanism

Country Status (1)

Country Link
JP (1) JPS5973979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811360A (en) * 1990-08-10 1996-01-16 Ta Triumph Adler Ag Method and typewriter, printing machine or the like for adjusting printing energy of type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811360A (en) * 1990-08-10 1996-01-16 Ta Triumph Adler Ag Method and typewriter, printing machine or the like for adjusting printing energy of type

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