JPH01139292A - Paper detection device of printer - Google Patents

Paper detection device of printer

Info

Publication number
JPH01139292A
JPH01139292A JP62298277A JP29827787A JPH01139292A JP H01139292 A JPH01139292 A JP H01139292A JP 62298277 A JP62298277 A JP 62298277A JP 29827787 A JP29827787 A JP 29827787A JP H01139292 A JPH01139292 A JP H01139292A
Authority
JP
Japan
Prior art keywords
paper
detection sensor
paper detection
indicates
jamming
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
JP62298277A
Other languages
Japanese (ja)
Inventor
Masayuki Yamaguchi
山口　昌幸
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62298277A priority Critical patent/JPH01139292A/en
Publication of JPH01139292A publication Critical patent/JPH01139292A/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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/46—Applications of alarms, e.g. responsive to approach of end of line
    • B41J29/48—Applications of alarms, e.g. responsive to approach of end of line responsive to breakage or exhaustion of paper or approach of bottom of paper

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

PURPOSE:To enable jamming with paper to be detected by providing a movable paper detection sensor, making various sizes of paper loadable at any selectable position, and installing a paper jamming detection feature with the use of a marked continuous paper. CONSTITUTION:Normally a paper detection sensor 8 is set at a position corresponding to the width of printing paper 9 using a movement lever 3, and when the paper detection sensor 8 indicates 'no loaded paper', an abnormally indicator lamp 11 lights. When 'paper jamming' is also detected with 'no loaded paper', the control method is selected by means of a selector switch 12 to use a black marked continuous paper and move the paper detection sensor 8 to a marking position. Further, if the paper detection sensor 8 indicates 'no loaded paper', the paper is fed beyond a length between two continuous markings. During this operation, if the paper detection sensor 8 indicates 'no loaded paper', the abnormality indicator lamp 11 lights accordingly, and if the lamp indicates otherwise, printing action stops due to, for instance, 'paper jamming'.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はプリンタの用紙検出装置に関し、特に種々の用
紙幅の連続用紙を用いるプリンタの用紙検出装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper detection device for a printer, and more particularly to a paper detection device for a printer that uses continuous paper of various paper widths.

〔従来の技術〕[Conventional technology]

種々の用紙幅の連続用紙を用いるプリンタの従来の用紙
検出装置は、プラテンに対して固定された用紙検出セン
サによって用紙の有無を検出して制御を行なうという手
段を用いている。Conventional paper detection devices for printers that use continuous paper of various paper widths use a paper detection sensor fixed to a platen to detect the presence or absence of paper and perform control.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述したように、従来のプリンタの用紙検出装置は、用
紙検出センサの位置が固定されているため、幅の狭い印
字用紙を用いるときは、用紙が正しく用紙検査センサ上
を通過できる位置にセットしないと、正常な用紙検出動
作を行うことができないという欠点があ°る。また、従
来は用紙の有無の検出のみを行うように構成されている
ため、連続用紙を使用しているとき、用紙づまりか発生
しても、それを検出ができないという欠点もある。As mentioned above, in conventional printer paper detection devices, the position of the paper detection sensor is fixed, so when using narrow printing paper, do not set the paper in a position where it can correctly pass over the paper inspection sensor. However, there is a drawback that a normal paper detection operation cannot be performed. Further, since the conventional apparatus is configured to only detect the presence or absence of paper, there is also the drawback that even if a paper jam occurs when continuous paper is used, it cannot be detected.

本発明の目的は、上述のような従来のプリンタの用紙検
出装置の欠点を解消して、種々のサイズの用紙をプラテ
ンの任意の位置に装着することができ、しかも連続用紙
の用紙づまりも検出することができるため、操作性に優
れしかも用紙の無駄を防止することのできるプリンタの
用紙検出装置を提供することにある。An object of the present invention is to eliminate the drawbacks of the paper detection device of the conventional printer as described above, to enable paper of various sizes to be mounted at any position on the platen, and to detect paper jams in continuous paper. Therefore, it is an object of the present invention to provide a paper detecting device for a printer that has excellent operability and can prevent wastage of paper.

〔問題点を解決するための手段〕[Means for solving problems]

本発明のプリンタの用紙検出装置は、プラテンに対応し
て設けられ前記プラテンの軸方向に移動可能な用紙検出
センサと、プリンタの前面下部に設けられ前記用紙検出
センサの位置を変える移動レバーと、用紙送りの異常状
態を表示する異常表示ランプと、前記用紙検出センサが
°“用紙なし”の状態を検出したときただちにその情報
を前記異常表示ランプに送って点灯させる第一の制御動
作と前記用紙検出センサが“用紙なし”の状態を検出し
たときのみ所定の長さの用紙送り動作を行つてもなお“
用紙なし″の状態であるときに前記異常表示ランプに信
号を送って点灯させる第二の制御動作とを行う制御部と
、前記制御部の前記第一および第二の制御動作の切替え
を行う切替スイッチとを備えている。A paper detection device for a printer according to the present invention includes a paper detection sensor provided corresponding to a platen and movable in the axial direction of the platen, and a moving lever provided at a lower front surface of the printer to change the position of the paper detection sensor. an abnormality indicator lamp that displays an abnormal state of paper feeding; a first control operation that immediately sends that information to the abnormality indicator lamp to light it when the paper detection sensor detects a "no paper"state; and the paper detection Even if the paper is fed for a predetermined length only when the sensor detects the “out of paper” condition, the
a control unit that performs a second control operation that sends a signal to the abnormality indicator lamp to light it when the paper is out of paper; and a switch that switches between the first and second control operations of the control unit. Equipped with a switch.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例の主要部を示す断面図、第２
図は第１図の実施例の全体の正面図である。FIG. 1 is a sectional view showing the main parts of an embodiment of the present invention, and FIG.
The figure is a front view of the entire embodiment of FIG. 1.

第１図および第２図に示すように、プラテン６の後方に
設けられている用紙検出センサ８は、前面の下部に設け
である移動レバー３を操作することによって、プラテン
６に装着した印字用紙９の幅に対応してその位置を左右
に移動して任意の位置にセットすることができる。As shown in FIGS. 1 and 2, the paper detection sensor 8 provided at the rear of the platen 6 detects the printing paper mounted on the platen 6 by operating the moving lever 3 provided at the lower part of the front surface. It can be set at any desired position by moving its position left and right in accordance with the width of 9.

第３図は第１図の実施例の制御部のブロック図である。FIG. 3 is a block diagram of the control section of the embodiment of FIG. 1.

従来の制御方法と同じ制御動作を行うときは、以下の通
り動作する。すなわち、制御部１０は、印字ヘッド横送
りモータ制御部１３や用紙送りモータ制御部１４を制御
しながら用紙検出センサ８を常に監視している。用紙検
出センサ８が゛用紙なし゛の状態になると、直ちにその
情報を用紙送り異常表示ランプ１１に送って点灯し、こ
のことをオペレータに知らせる。When performing the same control operation as in the conventional control method, the operation is as follows. That is, the control section 10 constantly monitors the paper detection sensor 8 while controlling the print head lateral feed motor control section 13 and the paper feed motor control section 14 . When the paper detection sensor 8 enters the state of ``no paper,'' the information is immediately sent to the paper feed abnormality indicator lamp 11, which lights up to notify the operator of this fact.

以上の制御方法を第一の制御方法とすると、第二の制御
方法は次のように動作する。すなわち、まず用紙切り替
えスイッチ１２によって制御方法を第一の方法から第二
の方法に切り替える。プリンタに第４図に示すような印
字に差しつかえない位置に一定の長さだけ黒く塗りつぶ
しである部分（マーキング）のある連続用紙を使用した
ときは、移動レバー３によって用紙検出センサ８をマー
キング１５の位置に移動させる。このことによって、用
紙の有無のみでなく、用紙詰まりをも検出することがで
きる。すなわち、制御部１０は、上述の第一の制御方法
と同様に常に用紙検出センサ８を監視する。しかし、用
紙検出センサ８が“用紙なし”の状態になっても、プリ
ンタが連続する２個のマーキングの間の長さ分だけ用紙
送りを行うまでは、“°用紙なし”とは判断せず、それ
以上用紙送りを行ってもなお用紙検出センサ８が゛用紙
なし゛の状態である場合に“用紙なし”′の情報を用紙
送り異常表示ランプ１１に送ってオペレータに知らせる
。一方、制御部１０は、用紙１枚分の用紙送りを行なっ
たにもかかわらず用紙検出センサ８が“用紙なし°の状
態にならない場合、すなわちマーキングを検出できない
場合には、用紙詰まりなどの用紙送り異常が発生したも
のと判断し、用紙送り異常表示ランプ１１に信号を送っ
てこのことをオペレータに知らせるとともに印字動作を
停止する。If the above control method is the first control method, the second control method operates as follows. That is, first, the control method is switched from the first method to the second method using the paper changeover switch 12. When using the printer with continuous paper that has a certain length of black fill (marking) at a position that cannot be used for printing, as shown in FIG. move it to the position. This makes it possible to detect not only the presence or absence of paper but also paper jams. That is, the control unit 10 constantly monitors the paper detection sensor 8 similarly to the first control method described above. However, even if the paper detection sensor 8 becomes "out of paper", it will not be determined as "out of paper" until the printer feeds the paper by the distance between two consecutive markings. If the paper detection sensor 8 is still in the state of ``no paper'' even if the paper is fed further, information of ``no paper'' is sent to the paper feed abnormality display lamp 11 to inform the operator. On the other hand, if the paper detection sensor 8 does not reach the "out of paper" state even after one sheet of paper has been fed, that is, if no markings can be detected, the controller 10 detects a paper feed error such as a paper jam. It is determined that this has occurred, and a signal is sent to the paper feed abnormality indicator lamp 11 to notify the operator of this fact, and the printing operation is stopped.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明は用紙検出センサの位置を
可動式にすることにより、用紙検出センサの位置に制約
されることなく種々のサイズの用紙を任意の位置に装着
することができるという効果がある。また、マーキング
した連続用紙を使用し、専用の用紙詰まりを検出する制
御機能を設けることにより、用紙の有無ばかりでなく、
連続用紙の用紙詰まりをも検出することが可能となり、
用紙の無駄を最小限にすることができるという効果があ
る。As explained above, the present invention has the advantage that by making the position of the paper detection sensor movable, paper of various sizes can be mounted at any position without being restricted by the position of the paper detection sensor. There is. In addition, by using marked continuous paper and providing a dedicated control function to detect paper jams, it is possible to detect not only the presence or absence of paper, but also the presence or absence of paper.
It is now possible to detect paper jams in continuous paper.
This has the effect of minimizing paper waste.

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

第１図は本発明の一実施例の主要部を示す断面図、第２
図は第１図の一実施例の全体の正面図、第３図は第１図
の実施例の制御部のブロック図、第４図は第１図の実施
例に使用する用紙詰まり検出用連続用紙の一例を示す斜
視図である。 ３・・・移動レバー、６・・・プラテン、８・・・用紙
検出センサ、９・・・制御部、１１・・・用紙送り異常
表示ランプ、１２・・・切替スイッチ、１３・・・印字
ヘッド横送りモータ制御部、１４・・・用紙送りモータ
制御部。FIG. 1 is a sectional view showing the main parts of an embodiment of the present invention, and FIG.
The figure is an overall front view of the embodiment shown in Fig. 1, Fig. 3 is a block diagram of the control section of the embodiment shown in Fig. 1, and Fig. 4 is a continuous line for paper jam detection used in the embodiment shown in Fig. 1. FIG. 3 is a perspective view showing an example of paper. 3...Movement lever, 6...Platen, 8...Paper detection sensor, 9...Control unit, 11...Paper feed error indicator lamp, 12...Select switch, 13...Print head Horizontal feed motor control section, 14...Paper feed motor control section.

Claims (1)

【特許請求の範囲】[Claims] プラテンに対応して設けられ前記プラテンの軸方向に移
動可能な用紙検出センサと、プリンタの前面下部に設け
られ前記用紙検出センサの位置を変える移動レバーと、
用紙送りの異常状態を表示する異常表示ランプと、前記
用紙検出センサが“用紙なし”の状態を検出したときた
だちにその情報を前記異常表示ランプに送って点灯させ
る第一の制御動作と前記用紙検出センサが“用紙なし”
の状態を検出したときのみ所定の長さの用紙送り動作を
行ってもなお“用紙なし”の状態であるときに前記異常
表示ランプに信号を送って点灯させる第二の制御動作と
を行う制御部と、前記制御部の前記第一および第二の制
御動作の切替えを行う切替スイッチとを備えることを特
徴とするプリンタの用紙検出装置。a paper detection sensor provided corresponding to the platen and movable in the axial direction of the platen; a moving lever provided at the lower front of the printer to change the position of the paper detection sensor;
an abnormality display lamp that displays an abnormal state of paper feeding; a first control operation that immediately sends information to the abnormality display lamp to light it when the paper detection sensor detects a state of "out of paper"; and the paper detection sensor. is “out of paper”
a second control operation that sends a signal to the abnormality indicator lamp to turn it on when the state is still "out of paper" even after performing a paper feed operation for a predetermined length only when the state is detected; and a changeover switch for switching between the first and second control operations of the control section.
JP62298277A 1987-11-25 1987-11-25 Paper detection device of printer Pending JPH01139292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62298277A JPH01139292A (en) 1987-11-25 1987-11-25 Paper detection device of printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62298277A JPH01139292A (en) 1987-11-25 1987-11-25 Paper detection device of printer

Publications (1)

Publication Number Publication Date
JPH01139292A true JPH01139292A (en) 1989-05-31

Family

ID=17857544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62298277A Pending JPH01139292A (en) 1987-11-25 1987-11-25 Paper detection device of printer

Country Status (1)

Country Link
JP (1) JPH01139292A (en)

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