JPH10297042A - Paper feed control method for dot printer - Google Patents
Paper feed control method for dot printerInfo
- Publication number
- JPH10297042A JPH10297042A JP10919997A JP10919997A JPH10297042A JP H10297042 A JPH10297042 A JP H10297042A JP 10919997 A JP10919997 A JP 10919997A JP 10919997 A JP10919997 A JP 10919997A JP H10297042 A JPH10297042 A JP H10297042A
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- paper
- time
- dot
- motor
- 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
Landscapes
- Handling Of Continuous Sheets Of Paper (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ドット印字用印字
ハンマによりドットマトリクス形式で印字を行うドット
プリンタに関するものであり、さらに詳しくは印字媒体
である印字用紙を搬送する制御方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dot printer for performing printing in a dot matrix format using a printing hammer for dot printing, and more particularly to a control method for transporting printing paper as a printing medium.
【０００２】[0002]
【従来の技術】図４、５にドットプリンタの印字機構の
概略を示す。印字素子３１を有するハンマバンク３２
は、図示していないシャトル機構部により桁方向に往復
運動する。また、ハンマバンク３２は、インクリボン３
３と印字用紙３４とを間に挟み、印字力を支持するため
のプラテン６０と対向した状態で配置されている。往復
運動した状態で印字素子３１が適時駆動されるごとに、
ドットマトリクスの形で文字、図形等が印字用紙３４に
印字される。印字用紙３４はその過程で適時、紙送り機
構部３５により、桁方向と垂直の方向に送られる。2. Description of the Related Art FIGS. 4 and 5 schematically show a printing mechanism of a dot printer. Hammerbank 32 having printing element 31
Reciprocates in the girder direction by a shuttle mechanism (not shown). In addition, the hammer bank 32 includes the ink ribbon 3.
3 and the printing paper 34 are interposed therebetween, and are arranged in a state of facing a platen 60 for supporting a printing force. Each time the printing element 31 is driven in a reciprocating state,
Characters, figures, and the like are printed on the printing paper 34 in the form of a dot matrix. The printing paper 34 is fed by the paper feed mechanism 35 in a direction perpendicular to the column direction as appropriate in the process.
【０００３】通常、ドットプリンタの紙送りモータ１に
はステッピングモータが用いられ、１ステップ駆動する
毎に印字用紙３４を印字素子３１の１ドット相当分搬送
する様設定されている。例えばドットプリンタの印刷密
度を１８０ドット／１インチ（１８０ｄｐｉ）とする場
合、印字用紙３４の搬送分解能力も最低限１８０ｄｐｉ
とする必要がある。このようにすることで、印字用紙３
４にドットマトリクス形式で印刷することが可能とな
り、印字用紙３４の位置決めなども容易になる。Normally, a stepping motor is used as the paper feed motor 1 of a dot printer, and is set so that the printing paper 34 is conveyed by one dot of the printing element 31 every time it is driven one step. For example, when the printing density of a dot printer is 180 dots / 1 inch (180 dpi), the transport resolution of the printing paper 34 is at least 180 dpi.
It is necessary to By doing so, the printing paper 3
4 can be printed in a dot matrix format, and the positioning of the printing paper 34 can be facilitated.
【０００４】近年、ドットプリンタで使用される印字用
紙３４も多種多様となってきている。特に、インパクト
タイプのドットプリンタで使用される印字用紙３４とし
ては、複写用紙を何枚も重ねた宅配用伝票なども使用頻
度が増えてきており、年々複写用紙の枚数も多くなって
きている。このような伝票タイプの印字用紙３４は、糊
などで束ねられる複写用紙の枚数も多く、特に送り穴付
き連続用紙などは、１箱に数百シートの伝票がミシン目
等で折り畳まれた状態で収納されている。この折り畳み
部は収納箱に納めるため、強度の折り癖がつく場合がほ
とんどである。[0004] In recent years, printing papers 34 used in dot printers have also become diverse. In particular, as the printing paper 34 used in the impact type dot printer, a home delivery slip in which a number of copy papers are piled up has been used more frequently, and the number of copy papers has been increasing year by year. Such a slip-type printing paper 34 has a large number of copy sheets bundled with glue or the like. Particularly, in the case of continuous paper with a perforation hole, etc., several hundred sheets of slips are folded in a box at perforations or the like. It is stored. Since the folded portion is housed in a storage box, it often has a strong folding habit.
【０００５】このような状態の折り畳み部が印字素子３
１とプラテン６０との非常に狭い隙間(以下ハンマギャ
ップという)を通過するため、折り癖を一旦延ばすため
の力が必要とされる。折り癖を直すためには、印字用紙
３４の摩擦負荷を５〜６ｋｇｆと非常に大きくする必要
があるため、紙送りモータ１に要求されるトルク特性も
非常に厳しい条件となる。[0005] The folded portion in such a state is the printing element 3.
Since it passes through a very narrow gap (hereinafter referred to as a hammer gap) between the platen 1 and the platen 60, a force for temporarily extending the folding habit is required. In order to correct the kinking, the friction load of the printing paper 34 needs to be very large, 5 to 6 kgf, so that the torque characteristics required for the paper feed motor 1 are also very severe.
【０００６】通常、紙送りモータ１の駆動は図３に示す
様に、紙送りモータ１のトルク特性を効率良く引き出す
ために、加速、等速、減速の３パターンで構成するスル
ー送りを使用することが一般的である。また、印字用紙
３４の搬送負荷に対し、紙送りモータ１のトルク特性を
得るための入力電流値を設定することも必要となる。こ
のため紙送りモータ１の定格電流値を越えた状態で入力
電流値を設定し、発熱を抑えながら使用することも行わ
れる。特に紙送りモータ１の加速時においては、加速す
るために必要な加速トルクと印字用紙３４の搬送負荷に
対する負荷トルクを合計したトルクが必要であり最も駆
動条件が厳しくなる。Normally, as shown in FIG. 3, the paper feed motor 1 is driven by a through feed composed of three patterns of acceleration, constant speed, and deceleration in order to efficiently extract the torque characteristics of the paper feed motor 1. That is common. It is also necessary to set an input current value for obtaining the torque characteristics of the paper feed motor 1 with respect to the transport load of the printing paper 34. For this reason, the input current value is set in a state where the rated current value of the paper feed motor 1 is exceeded, and the motor is used while suppressing heat generation. In particular, when the paper feed motor 1 is accelerated, a torque that is the sum of the acceleration torque required for acceleration and the load torque for the transport load of the printing paper 34 is required, and the driving conditions are the strictest.
【０００７】紙送りモータ１の発熱が最も大きくなるパ
ターンは、内部のコイルに入力電流が流され続ける、す
なわち励磁状態が連続する場合である。特に印字用紙３
４のページスキップ（一度に印字用紙３４の１ページ分
を送る）紙送りを連続的に行う状態で使用される場合が
最も厳しくなる。ドットプリンタに対し印刷速度の高速
化は最も要求されるものであり、ページスキップの速度
も最大限とする必要があった。The pattern in which the paper feed motor 1 generates the most heat is when the input current continues to flow through the internal coil, that is, when the excitation state is continuous. Especially printing paper 3
The most severe case is when the printer is used in a state of continuously performing page skipping of 4 (feeding one page of the printing paper 34 at a time). Increasing the printing speed is most demanded for dot printers, and it is necessary to maximize the page skipping speed.
【０００８】[0008]
【発明が解決しようとする課題】上記の様なこともあ
り、紙送りモータ１のトルク特性を満足させ、さらにペ
ージスキップなどの連続紙送りの速度を最大限とするた
めには、ドットプリンタ本体内部の冷却を行うシロッコ
ファン（図示せず）のグレードアップ、又は外気を紙送
りモータ１本体に直接吹き付けるファン（図示せず）な
どを用いて冷却する必要があり、ドットプリンタのコス
トアップが問題となる。In view of the above, in order to satisfy the torque characteristics of the paper feed motor 1 and to maximize the speed of continuous paper feed such as page skipping, the dot printer main body is required. It is necessary to upgrade the sirocco fan (not shown) for cooling the inside or use a fan (not shown) for blowing the outside air directly to the main body of the paper feed motor 1 to increase the cost of the dot printer. Becomes
【０００９】さらには、ドットプリンタのコスト低減を
行う上で、上記の様な紙送りモータ１の冷却手段を用い
たくない場合には、ドットプリンタの能力となるページ
スキップ速度または用紙搬送力が低下するという問題が
ある。Further, in order to reduce the cost of the dot printer, if it is not desired to use the cooling means of the paper feed motor 1 as described above, the page skip speed or the paper conveyance force, which is the capability of the dot printer, is reduced. There is a problem of doing.
【００１０】本発明の目的は、上記に示した様な問題を
解決し、ページスキップ速度と用紙搬送力を満足させな
がら、紙送りモータ１の発熱を許容値以下とする方法を
提供することである。An object of the present invention is to solve the above-mentioned problems and to provide a method for reducing the heat generation of the paper feed motor 1 to an allowable value or less while satisfying the page skip speed and the paper conveyance force. is there.
【００１１】[0011]
【課題を解決するための手段】紙送りモータ１の駆動を
行う時に発生する発熱量は、連続して紙送りモータ１に
入力電流が流される時間と、入力電流の値に比例して変
化することに着目し、連続的に電流が流される時間を制
限し、一単位当たりの連続紙送りを分割してを行うよう
にする、また連続紙送りの入力電流を可能な限り低減す
るように工夫したものである。The amount of heat generated when driving the paper feed motor 1 varies in proportion to the time during which the input current is continuously supplied to the paper feed motor 1 and the value of the input current. Focusing on this, the continuous current flow time is limited, continuous paper feed per unit is divided, and the input current for continuous paper feed is reduced as much as possible. It was done.
【００１２】[0012]
【発明の実施の形態】以下、実施の形態を表す図１、図
２を参照して本発明を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. 1 and 2 showing an embodiment.
【００１３】ページスキップなどの連続紙送り時におい
て、任意の連続紙送り（Ｎドット送り）時間をｎドット
送り時間で分割し、各ｎドット送りの間に待ち時間を挿
入する。このときの紙送りモータ１の駆動はｎドットの
連続で合計Ｎドット送りを行う。なお、ｎドット送りで
の分割数は連続紙送りの時間が短くなるよう最適な分割
数に設定する。ｎドット送り時の紙送りモータ１への入
力電流が流される時間をｔ、その後の待ち時間をｔ’と
すると、連続的にＮドットを送る時の紙送りモータ１の
発熱量は、ｔ／（ｔ＋ｔ’）に比例し変化するため、発
熱量が許容値以下になるようｔ’を設定するようにす
る。さらに連続紙送り量Ｎドットに対し、紙送りモータ
１の発熱量と相関をとりながらｎドットの紙送り量を変
化させて制御するようにする。At the time of continuous paper feeding such as page skip, an arbitrary continuous paper feeding (N dot feeding) time is divided by an n dot feeding time, and a waiting time is inserted between each n dot feeding. At this time, the paper feed motor 1 is driven for a total of N dots continuously for n dots. The number of divisions in the n-dot feed is set to an optimal number of divisions so that the continuous paper feed time is shortened. Assuming that the time during which the input current to the paper feed motor 1 flows during the n-dot feed is t, and the subsequent waiting time is t ', the amount of heat generated by the paper feed motor 1 when continuously feeding N dots is t / Since it changes in proportion to (t + t '), t' is set so that the heat generation amount becomes equal to or less than the allowable value. Further, the control is performed by changing the n-dot paper feed amount while correlating the continuous paper feed amount N dots with the heat generation amount of the paper feed motor 1.
【００１４】また、連続紙送り時のトルク特性は加速時
に最も厳しくなることは前述したが、等速部においては
加速時に必要な加速トルクが不要となるため、印字用紙
３４の搬送負荷によるトルクのみ満足するよう設定する
ことができる。このことから、等速部の紙送りモータ１
への入力電流を用紙搬送トルクのみを満たす値Ｉ１と
し、加速，減速部の入力電流を（加速減速トルク＋用紙
搬送トルク）を満たす値Ｉ２とすると、Ｉ１≦Ｉ２とす
ることができる。このとき、Ｉ２の値を紙送りモータ１
の発熱量が許容値以下になるように設定するようにす
る。さらに、以上の２種類の制御を組み合わせて使用す
る様にするとよい。As described above, the torque characteristics during continuous paper feeding become the most severe during acceleration. However, in the constant velocity portion, the acceleration torque required during acceleration is not required, so that only the torque due to the transport load of the printing paper 34 is used. Can be set to satisfy. From this, the paper feed motor 1 of the constant speed section
If the input current to the motor is set to a value I1 that satisfies only the sheet conveyance torque, and the input current of the acceleration / deceleration unit is set to a value I2 that satisfies (acceleration / deceleration torque + sheet conveyance torque), then I1 ≦ I2 can be achieved. At this time, the value of I2 is
Is set so that the calorific value becomes equal to or less than the allowable value. Further, the above two types of control may be used in combination.
【００１５】[0015]
【発明の効果】本発明は以上の様に、連続紙送りを分割
して搬送する、又は等速部の入力電流を用紙搬送時の負
荷トルクを満足するよう低減させる、又はそれら２種の
方法を組み合わせる制御を取り入れることで紙送りモー
タ１の発熱を抑えながら、要求される紙送りモータ１の
トルク特性と紙送り速度を得ることが可能となる。As described above, according to the present invention, the continuous paper feed is divided and conveyed, or the input current of the constant velocity portion is reduced so as to satisfy the load torque at the time of conveying the paper, or the two methods. It is possible to obtain the required torque characteristics of the paper feed motor 1 and the required paper feed speed while suppressing the heat generation of the paper feed motor 1 by adopting the control for combining.
【図１】本発明の一実施の形態を示す特性図。FIG. 1 is a characteristic diagram showing one embodiment of the present invention.
【図２】本発明のその他の実施の形態を示す特性図。FIG. 2 is a characteristic diagram showing another embodiment of the present invention.
【図３】従来技術の紙送り制御方法を示す特性図。FIG. 3 is a characteristic diagram showing a conventional paper feed control method.
【図４】従来のドットプリンタの印字機構の概略を示す
斜視図。FIG. 4 is a perspective view schematically showing a printing mechanism of a conventional dot printer.
【図５】従来のドットプリンタの印字機構の要部の側面
図。FIG. 5 is a side view of a main part of a printing mechanism of a conventional dot printer.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 篠原 誠 茨城県ひたちなか市武田1060番地 日立工 機株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Makoto Shinohara 1060 Takeda, Hitachinaka-shi, Ibaraki Pref. Hitachi Koki Co., Ltd.
Claims (4)
クと、前記ハンマバンクを桁方向に往復移動させるため
の往復移動手段と、モータ等を用いて印字用紙を送るた
めの紙送り手段を有するドットプリンタにおいて、ペー
ジスキップ等の連続紙送りを分割し、分割した相互の紙
送りの間に待ち時間を挿入したことを特徴とするドット
プリンタの紙送り制御方法。1. A hammer bank on which a plurality of printing elements are mounted, a reciprocating means for reciprocating the hammer bank in a digit direction, and a paper feeding means for feeding printing paper using a motor or the like. A paper feed control method for a dot printer, wherein a continuous paper feed such as a page skip is divided in a dot printer, and a waiting time is inserted between the divided mutual paper feeds.
クと、前記ハンマバンクを桁方向に往復移動させるため
の往復移動手段と、モータ等を用いて印字用紙を送るた
めの紙送り手段を有するドットプリンタにおいて、ペー
ジスキップ等の連続紙送りを分割し、分割した相互の紙
送りの間に待ち時間を挿入し、前記待ち時間を連続改行
量に併せて変化させることを特徴とするドットプリンタ
の紙送り制御方法。2. A hammerbank on which a plurality of printing elements are mounted, reciprocating means for reciprocating the hammerbank in a digit direction, and paper feeding means for feeding printing paper using a motor or the like. In a dot printer, a continuous paper feed such as a page skip is divided, a waiting time is inserted between the divided mutual paper feeds, and the waiting time is changed according to a continuous line feed amount. Paper feed control method.
クと、前記ハンマバンクを桁方向に往復移動させるため
の往復移動手段と、モータ等を用いて印字用紙を送るた
めの紙送り手段を有するドットプリンタにおいて、前記
モータへの入力電流を連続紙送りの加速部、減速部に対
し等速部のみ低く設定することを特徴とするドットプリ
ンタの紙送り制御方法。3. A hammerbank on which a plurality of printing elements are mounted, reciprocating means for reciprocating the hammerbank in a digit direction, and paper feeding means for feeding printing paper using a motor or the like. In a dot printer, a paper feed control method for a dot printer, wherein an input current to the motor is set lower only in a constant speed portion than in an acceleration portion and a deceleration portion for continuous paper feed.
クと、前記ハンマバンクを桁方向に往復移動させるため
の往復移動手段と、モータ等を用いて印字用紙を送るた
めの紙送り手段を有するドットプリンタにおいて、ペー
ジスキップ等の連続紙送りを分割し、分割した相互の紙
送りの間に待ち時間を挿入し、前記待ち時間を連続改行
量に併せて変化させ、前記モータへの入力電流を連続紙
送りの加速部、減速部に対し等速部のみ低く設定するこ
とを特徴とするドットプリンタの紙送り制御方法。4. A hammer bank on which a plurality of printing elements are mounted, reciprocating means for reciprocating the hammer bank in a digit direction, and paper feeding means for feeding printing paper using a motor or the like. In a dot printer, a continuous paper feed such as a page skip is divided, a waiting time is inserted between the divided paper feeds, the waiting time is changed according to a continuous line feed amount, and an input current to the motor is reduced. A paper feed control method for a dot printer, wherein only a constant speed part is set lower than an acceleration part and a deceleration part of continuous paper feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10919997A JPH10297042A (en) | 1997-04-25 | 1997-04-25 | Paper feed control method for dot printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10919997A JPH10297042A (en) | 1997-04-25 | 1997-04-25 | Paper feed control method for dot printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10297042A true JPH10297042A (en) | 1998-11-10 |
Family
ID=14504134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10919997A Pending JPH10297042A (en) | 1997-04-25 | 1997-04-25 | Paper feed control method for dot printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10297042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011194873A (en) * | 2010-02-24 | 2011-10-06 | Ricoh Printing Systems Ltd | Dot printer |
-
1997
- 1997-04-25 JP JP10919997A patent/JPH10297042A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011194873A (en) * | 2010-02-24 | 2011-10-06 | Ricoh Printing Systems Ltd | Dot printer |
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