JPH0514622B2 - - Google Patents

Info

Publication number
JPH0514622B2
JPH0514622B2 JP13852482A JP13852482A JPH0514622B2 JP H0514622 B2 JPH0514622 B2 JP H0514622B2 JP 13852482 A JP13852482 A JP 13852482A JP 13852482 A JP13852482 A JP 13852482A JP H0514622 B2 JPH0514622 B2 JP H0514622B2
Authority
JP
Japan
Prior art keywords
paper
conveyance
edge detection
printing
media processing
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.)
Expired - Lifetime
Application number
JP13852482A
Other languages
Japanese (ja)
Other versions
JPS5929181A (en
Inventor
Kuninao Matsura
Masashi Inoe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13852482A priority Critical patent/JPS5929181A/en
Publication of JPS5929181A publication Critical patent/JPS5929181A/en
Publication of JPH0514622B2 publication Critical patent/JPH0514622B2/ja
Granted 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering

Landscapes

  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Controlling Sheets Or Webs (AREA)

Description

【発明の詳細な説明】 発明の対象 本発明は用紙搬送機構に関し、特に印字装置に
おける印字用紙等の吸入に際して、印字用紙が印
字装置の用紙搬送ローラから外れて排出が不可能
になるという事態を防止するに好適な用紙搬送機
構に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to a paper conveyance mechanism, and particularly to a paper conveyance mechanism, and in particular, to prevent a situation in which the print paper comes off the paper conveyance roller of the printing device and becomes impossible to eject when the print paper or the like is sucked into the printing device. The present invention relates to a paper transport mechanism suitable for preventing such problems.

従来技術 印字装置等における用紙搬送機構のうちで、用
紙を送るための搬送ローラを、用紙搬送方向と直
角に配置し、この搬送ローラを正転および逆転さ
せることにより単票等の用紙を吸入・排出する機
構においては、操作者が誤つて、所定の長さより
短い印字操作を挿入した場合、印字用紙の吸入動
作途中で印字用紙が搬送ローラから外れ、搬送ロ
ーラによる印字用紙の排出が不可能になるという
問題があつた。Prior Art In a paper transport mechanism in a printing device, etc., a transport roller for transporting the paper is arranged perpendicular to the paper transport direction, and the transport roller is rotated forward and backward to suck in paper such as a ticket. In the ejecting mechanism, if the operator accidentally inserts a print shorter than the specified length, the print paper will come off the conveyance roller during the suction operation, making it impossible for the conveyance roller to eject the print paper. There was a problem.

発明の目的 本発明は上記事情に鑑みてなされたもので、そ
の目的とするところは、従来の用紙搬送機構にお
ける上述の如き問題を解消し、操作者が誤つて所
定の長さより短い用紙を挿入した場合にも、該用
紙が搬送手段から外れることを防止するととも
に、搬送手段による用紙の排出を可能にする用紙
搬送機構を提供することにある。Purpose of the Invention The present invention has been made in view of the above-mentioned circumstances, and its purpose is to solve the above-mentioned problems in the conventional paper conveyance mechanism, and to prevent the operator from accidentally inserting paper shorter than the predetermined length. It is an object of the present invention to provide a paper transport mechanism that prevents the paper from coming off the transport means even when the paper is removed from the transport means, and also enables the paper to be discharged by the transport means.

発明の総括的説明 本発明の上記目的は、用紙搬送手段によりある
長さの用紙を、用紙上に印字を行なつたりまたは
用紙上に記載されたデータを読み取つたりする媒
体処理部へ送りこみ、逆転させることによつて排
出する、該媒体処理部直前に設けられた用紙搬送
機構において、前記媒体処理部側最終段にある用
紙搬送手段手前に設けられた用紙端部検出手段
と、該用紙端部検出手段に接続され、該用紙端部
検出手段からの用紙前端検出信号に応じて用紙前
端検出後の用紙の搬送量を予め与えられた搬送条
件に基づき演算処理し処理結果を出力する演算手
段と、該演算手段の出力に基づき前記用紙搬送手
段を制御する制御手段を備え、前記演算手段は、
前記用紙端部検出手段からの用紙後端検出信号に
応じて、用紙後端検出時から前記媒体処理部によ
る媒体処理終了時までに要する用紙の搬送量を求
め、該搬送量が前記媒体処理部側最終段にある用
紙搬送手段と前記用紙端部検出手段間の距離より
大であるとき、前記制御手段をして前記用紙搬送
手段の用紙の送りこみ停止及び逆転による用紙の
排出をさせるよう構成したことを特徴とする用紙
搬送機構によつて達成される。General Description of the Invention The above object of the present invention is to feed a certain length of paper by a paper conveying means to a media processing unit that prints on the paper or reads data written on the paper. , in a paper transport mechanism provided immediately before the medium processing unit that discharges the paper by reversing the paper, a paper edge detecting means provided in front of the paper transport unit at the last stage on the side of the medium processing unit; A calculation unit connected to the edge detection means, which calculates the amount of conveyance of the paper after the front edge of the paper is detected based on a predetermined conveyance condition in response to a paper front edge detection signal from the paper edge detection means, and outputs the processing result. and a control means for controlling the paper conveyance means based on the output of the calculation means, the calculation means comprising:
In response to the paper trailing edge detection signal from the paper edge detection means, the amount of paper conveyance required from the time when the trailing edge of the paper is detected until the time when the media processing unit finishes processing the paper is determined, and the amount of conveyance is determined by the amount of conveyance required by the media processing unit. When the distance is greater than the distance between the paper transport means at the final stage on the side and the paper edge detection means, the control means is configured to cause the paper transport means to stop feeding the paper and discharge the paper by reversing the direction. This is achieved by a paper transport mechanism characterized by the following.

発明の実施例 以下、本発明の実施例を図面に基づいて詳細に
説明する。Embodiments of the Invention Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

第１図は、本発明の一実施例である用紙搬送機
構を備えた印字装置の縦断面図である。 FIG. 1 is a longitudinal cross-sectional view of a printing device equipped with a paper conveyance mechanism according to an embodiment of the present invention.

印字用紙搬送動作の動力源であるモータ１に固
定されたプーリ２の回転動作は、ベルト３を介し
てプーリ４の固定された搬送ローラシヤフト５に
伝達される。該搬送ローラシヤフト５に固定され
た搬送ローラ６に対向するプレツシヤローラ７
は、プレツシヤアーム８に固定されたプレツシヤ
ローラシヤフト９に回転自在に取付けられてい
る。プレツシヤアーム８は、プレツシヤアームシ
ヤフト１０を支点にして、スプリング１１により
プレツシヤローラ７を搬送ローラ６に押付けてい
る。 The rotational motion of a pulley 2 fixed to a motor 1, which is a power source for conveying printing paper, is transmitted via a belt 3 to a conveyance roller shaft 5 to which a pulley 4 is fixed. A pressure roller 7 facing the conveyance roller 6 fixed to the conveyance roller shaft 5
is rotatably attached to a pressure roller shaft 9 fixed to the pressure arm 8. The pressure arm 8 uses the pressure arm shaft 10 as a fulcrum, and presses the pressure roller 7 against the conveyance roller 6 by a spring 11.

印字用紙１２は、テーブル１３とカバー１４と
により形成される搬送路の開口部から挿入され、
プラテン１５と印字ヘツド１６とが対向する媒体
処理部である印字部まで導入される。印字部の先
には、ガイドＡ１７とガイドＢ１８とが対向する
搬送路が形成されている。搬送ローラ６とプレツ
シヤローラ７との接点から手前（挿入口側）方向
の距離lsの位置に、発光素子と受光素子との対で
形成されるセンサ１９が配置されている。 The printing paper 12 is inserted through the opening of the conveyance path formed by the table 13 and the cover 14,
The platen 15 and print head 16 are introduced to a printing section which is a media processing section facing each other. A conveyance path in which a guide A17 and a guide B18 face each other is formed at the end of the printing section. A sensor 19 formed by a pair of a light-emitting element and a light-receiving element is disposed at a distance l s from the point of contact between the conveyance roller 6 and the pressure roller 7 in the direction of this side (toward the insertion opening).

センサ１９は、光学的に用紙の有無を検知する
ものである。印字用紙１２が挿入口より挿入され
たことは、センサ１９が受光の状態から遮光の状
態に変わることで検知され、一方、用紙吸入動作
途中でセンサ１９が遮光の状態から受光の状態に
変わることで印字用紙１２の後端の通過が検知さ
れる。 The sensor 19 optically detects the presence or absence of paper. Insertion of the printing paper 12 from the insertion slot is detected when the sensor 19 changes from a light-receiving state to a light-blocking state, and on the other hand, the sensor 19 changes from a light-blocking state to a light-receiving state during the paper suction operation. Passage of the trailing edge of the printing paper 12 is detected at .

上述の如く構成された本実施例装置における印
字用紙搬送動作の概要は、挿入口から挿入された
印字用紙１２をセンサ１９が検知すると、モータ
１の制御回路により搬送ローラ６が、印字用紙１
２を吸入する方向に回転駆動（正転）されて吸入
動作を開始し、印字用紙の吸入量を適当量に制御
しながら印字動作をくり返して、印字用紙１２に
所定の行数ｎの印字が完了すると搬送ローラ６を
逆転させて印字用紙を挿入口側へ排出するという
ものである。 The outline of the printing paper conveyance operation in the present embodiment apparatus configured as described above is as follows: When the sensor 19 detects the printing paper 12 inserted from the insertion slot, the conveyance roller 6 is moved by the control circuit of the motor 1 to transport the printing paper 12.
2 is rotated in the suction direction (normal rotation) to start the suction operation, and the printing operation is repeated while controlling the suction amount of the printing paper to an appropriate amount, so that a predetermined number of lines n are printed on the printing paper 12. When the process is completed, the conveying roller 6 is reversed and the printing paper is discharged to the insertion slot side.

第２図は、本実施例における用紙搬送制御系の
構成ブロツク図である。 FIG. 2 is a configuration block diagram of the paper conveyance control system in this embodiment.

センサ１９の出力は、光電変換部２０を介して
演算回路２１に伝えられる。演算回路２１は、印
字に必要な用紙搬送量を算出し、制御回路２２に
用紙搬送命令を発すると共に、用紙吸入時、常時
センサ１９からの入力、即ち印字用紙１２の後端
位置を監視して、用紙の長さ不足時の過吸入（搬
送ローラ６から用紙が外れること）を防止する。 The output of the sensor 19 is transmitted to the arithmetic circuit 21 via the photoelectric conversion section 20. The arithmetic circuit 21 calculates the amount of paper conveyance required for printing, issues a paper conveyance command to the control circuit 22, and constantly monitors the input from the sensor 19, that is, the position of the trailing edge of the printing paper 12 when sucking paper. , prevents excessive suction (paper coming off from the conveyance roller 6) when the paper is insufficient in length.

制御回路２２は、演算回路２１の命令に対応し
てモータ１を正転および逆転させ、用紙の吸入お
よび排出を実行する。モータ１の回転方向及び回
転角は、動作のつど演算回路２１にフイードバツ
クされる。 The control circuit 22 rotates the motor 1 forward and reverse in response to commands from the arithmetic circuit 21 to suck in and discharge paper. The rotation direction and rotation angle of the motor 1 are fed back to the calculation circuit 21 each time the motor 1 operates.

第３図は、用紙過吸入防止法を示すフローチヤ
ートである。 FIG. 3 is a flowchart showing a method for preventing excessive paper suction.

センサ１９により印字用紙１２の挿入が検知さ
れると、演算回路２１は第１行印字位置までの用
紙吸入命令を発し、用紙の吸入が開始される。 When the sensor 19 detects the insertion of the printing paper 12, the arithmetic circuit 21 issues a paper suction command to the first line printing position, and paper suction is started.

今、ｎ行の印字を行う場合を考える。印字用紙
１２の長さが充分ある場合、即ち印字用紙１２の
長さがＬ〔＝（用紙前端から第１行印字中心までの
距離l1）＋（１行の間隔lb）×（ｎ−１）＋（印字部中
心位置から搬送ローラ６とプレツシヤローラ７と
の接点までの距離la）＋（搬送ローラ６とプレツシ
ヤローラ７との接点からセンサ１９までの距離
ls）〕以上の場合は、ｎ行の印字が終了する前に
用紙の後端を検知することはない。 Now, let us consider the case where n lines of printing are to be performed. When the length of the printing paper 12 is sufficient, that is, the length of the printing paper 12 is L [=(distance l 1 from the front edge of the paper to the printing center of the first line) + (distance between 1 line l b )×(n- 1) + (distance l a from the center position of the printing section to the contact point between the transport roller 6 and pressure roller 7 ) + (distance from the contact point between the transport roller 6 and pressure roller 7 to the sensor 19
l s )] In the above case, the trailing edge of the paper is not detected before printing of n lines is completed.

一方、印字用紙１２の長さが前期Ｌより短い場
合には、ｎ行の印字が終了する以前の用紙吸入動
作途中でセンサ１９により印字用紙１２の後端が
検知される。 On the other hand, if the length of the printing paper 12 is shorter than the previous period L, the rear end of the printing paper 12 is detected by the sensor 19 during the paper suction operation before the printing of n lines is completed.

この時、演算回路２１は、印字に必要な行位置
までの吸入量の残量ｌと、前記搬送ローラ６とプ
レツシヤローラ７との接点からセンサ１９までの
距離lsとを比較し、ｌ≦ls−α（α：正）の場合に
は、印字用紙１２が長さｌだけ吸入された時の印
字を最終行とし、この印字が終了した後制御回路
２２に用紙排出命令を発し、モータ１を逆転させ
て用紙排出動作を行う。また、ｌ＞ls−αの場合
には、印字用紙１２の吸入動作を直ちに中止し用
紙排出動作を行う。なお、αは用紙搬送系の機械
的誤差、センサ１９による印字用紙１２の後端の
検知精度および制御系の動作遅れ等を考慮した寸
法で、s−αはセンサ１９により印字用紙１２
の後端を検知した後、該用紙が搬送ローラ６とプ
レツシヤローラ７との接点が外れないことが保証
される最大の吸入量である。 At this time, the arithmetic circuit 21 compares the remaining suction amount l to the line position required for printing and the distance l s from the contact point of the conveyance roller 6 and the pressure roller 7 to the sensor 19, and calculates that l≦l In the case of s − α (α: positive), the print when the printing paper 12 is sucked by length l is the last line, and after this printing is completed, a paper ejection command is issued to the control circuit 22, and the motor 1 The paper is ejected by reversing the direction. Further, in the case of l>l s -α, the suction operation of the printing paper 12 is immediately stopped and the paper ejection operation is performed. Note that α is a dimension that takes into account mechanical errors in the paper conveyance system, the detection accuracy of the trailing edge of the printing paper 12 by the sensor 19, and operation delays of the control system, etc.
This is the maximum suction amount that guarantees that the paper will not come out of contact with the conveyance roller 6 and the pressure roller 7 after the trailing edge is detected.

本実施例によれば、印字装置を取扱う操作者が
誤つて所定の長さより短い印字用紙を挿入した場
合、印字用紙の吸入動作の途中でそれを検知し、
印字用紙の自動排出が行えるという効果がある。 According to this embodiment, if the operator handling the printing device accidentally inserts printing paper shorter than a predetermined length, this is detected during the suction operation of the printing paper, and
This has the effect that printing paper can be automatically ejected.

上記実施例においては、本発明を印字装置の用
紙搬送機構に適用した例を示したが、本発明はこ
れに限られるものではなく、媒体への印字の他に
媒体からのデータの読み取り等の媒体処理を行う
ために用紙を吸入・排出する用紙搬送機構全般に
有効であることは言うまでもない。 In the above embodiment, an example was shown in which the present invention is applied to a paper conveyance mechanism of a printing device, but the present invention is not limited to this, and the present invention is not limited to this, and the present invention can be used not only for printing on a medium but also for reading data from a medium, etc. Needless to say, the present invention is effective for all paper transport mechanisms that suck in and eject paper for media processing.

また、用紙後端検出手段、該検出手段の出力に
より用紙搬送手段を停止させるための制御手段等
は各種のものを利用することができることも言う
までもない。 It goes without saying that various types of paper trailing edge detection means, control means for stopping the paper transport means based on the output of the detection means, etc. can be used.

発明の効果 以上述べた如く、本発明によれば、用紙搬送手
段によりある長さの用紙を、用紙上に印字を行な
つたりまたは用紙上に記載されたデータを読み取
つたりする媒体処理部へ送りこみ、逆転させるこ
とによつて排出する、該媒体処理部直前に設けら
れた用紙搬送機構において、前記媒体処理部側最
終段にある用紙搬送手段手前に設けられた用紙端
部検出手段と、該用紙端部検出手段に接続され、
該用紙端部検出手段からの用紙前端検出信号に応
じて用紙前端検出後の用紙の搬送量を予め与えら
れた搬送条件に基づき演算処理し処理結果を出力
する演算手段と、該演算手段の出力に基づき前記
用紙搬送手段を制御する制御手段を備え、前記演
算手段は、前記用紙端部検出手段からの用紙後端
検出信号に応じて、用紙後端検出時から前記媒体
処理部による媒体処理終了時までに要する用紙の
搬送量を求め、該搬送量が前記媒体処理部側最終
段にある用紙搬送手段と前記用紙端部検出手段間
の距離より大であるとき、前記制御手段をして前
記用紙搬送手段に用紙の送りこみ停止及び逆転に
よる用紙の排出をさせるよう構成したので、操作
者が誤つて所定の長さより短い用紙を挿入した場
合にも、該用紙が搬送手段から外れることを防止
するとともに、搬送手段による用紙の排出を可能
にするという顕著な効果を奏するものである。Effects of the Invention As described above, according to the present invention, a paper of a certain length is transferred by a paper conveying means to a media processing unit that prints on the paper or reads data written on the paper. In a paper transport mechanism provided immediately before the medium processing section that feeds the paper and discharges the medium by reversing the direction, a paper edge detecting means provided before the paper transport means at the final stage on the side of the medium processing section; connected to the paper edge detection means;
a calculation means for calculating the conveyance amount of the paper after the front edge of the paper has been detected in accordance with a paper front edge detection signal from the paper edge detection means based on predetermined conveyance conditions, and outputting a processing result; and an output of the calculation means. control means for controlling the paper conveying means based on the above, and the calculation means determines whether the medium processing unit finishes processing the medium from the time when the trailing edge of the paper is detected, in response to a paper trailing edge detection signal from the paper edge detection means. The amount of paper conveyance required by the time is determined, and when the amount of conveyance is greater than the distance between the paper conveyance means at the final stage on the media processing section side and the paper edge detection means, the control means Since the paper transport means is configured to stop feeding the paper and eject the paper by reversing the paper, even if the operator accidentally inserts a paper shorter than a predetermined length, the paper is prevented from coming off the transport means. At the same time, it has the remarkable effect of enabling the paper to be ejected by the conveyance means.

【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を示す断面図、第２
図は用紙搬送制御系の構成ブロツク図、第３図は
用紙過吸入防止動作のフローチヤートである。 １：モータ、６：搬送ローラ、７：プレツシヤ
ローラ、１２：印字用紙、１３：テーブル、１
４：カバー、１５：プラテン、１６：印字ヘツ
ド、１７，１８：ガイド、１９：センサ、２０：
光電変換部、２１：演算回路、２２：制御回路。 FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
The figure is a block diagram of the structure of the paper conveyance control system, and FIG. 3 is a flow chart of the paper over-intake prevention operation. 1: Motor, 6: Conveyance roller, 7: Pressure roller, 12: Print paper, 13: Table, 1
4: Cover, 15: Platen, 16: Print head, 17, 18: Guide, 19: Sensor, 20:
Photoelectric conversion section, 21: arithmetic circuit, 22: control circuit.

Claims (1)

【特許請求の範囲】[Claims] １ 用紙搬送手段によりある長さの用紙を、用紙
上に印字を行なつたりまたは用紙上に記載された
データを読み取つたりする媒体処理部へ送りこ
み、逆転させることによつて排出する、該媒体処
理部直前に設けられた用紙搬送機構において、前
記媒体処理部側最終段にある用紙搬送手段手前に
設けられた用紙端部検出手段と、該用紙端部検出
手段に接続され、該用紙端部検出手段からの用紙
前端検出信号に応じて用紙前端検出後の用紙の搬
送量を予め与えられた搬送条件に基づき演算処理
し処理結果を出力する演算手段と、該演算手段の
出力に基づき前記用紙搬送手段を制御する制御手
段を備え、前記演算手段は、前記用紙端部検出手
段からの用紙後端検出信号に応じて、用紙後端検
出時から前記媒体処理部による媒体処理終了時ま
でに要する用紙の搬送量を求め、該搬送量が前記
媒体処理部側最終段にある用紙搬送手段と前記用
紙端部検出手段間の距離より大であるとき、前記
制御手段をして前記用紙搬送手段に用紙の送りこ
み停止及び逆転による用紙の排出をさせるよう構
成したことを特徴とする用紙搬送機構。1 A paper conveyance means that sends a certain length of paper to a media processing unit that prints on the paper or reads data written on the paper, and then discharges it by reversing the paper. In the paper transport mechanism provided immediately before the media processing section, a paper edge detection means is provided in front of the paper transport means at the final stage on the media processing section side, and a paper edge detection means is connected to the paper edge detection means, and the paper edge detection means is connected to the paper a calculation means for calculating the conveyance amount of the paper after the front edge of the sheet has been detected in accordance with a paper front edge detection signal from the paper front edge detection signal based on predetermined conveyance conditions, and outputting a processing result; The calculation means includes a control means for controlling a paper conveying means, and the calculation means is configured to calculate a value from the time when the trailing edge of the paper is detected until the time when the media processing unit finishes processing the media, according to the paper trailing edge detection signal from the paper edge detection unit. The amount of paper conveyance required is determined, and when the amount of conveyance is greater than the distance between the paper conveyance means at the final stage on the media processing section side and the paper edge detection means, the control means controls the paper conveyance means. A paper transport mechanism characterized in that the paper conveyance mechanism is configured to stop feeding the paper and discharge the paper by reversing the rotation direction.
JP13852482A 1982-08-11 1982-08-11 Paper conveying mechanism Granted JPS5929181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13852482A JPS5929181A (en) 1982-08-11 1982-08-11 Paper conveying mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13852482A JPS5929181A (en) 1982-08-11 1982-08-11 Paper conveying mechanism

Publications (2)

Publication Number Publication Date
JPS5929181A JPS5929181A (en) 1984-02-16
JPH0514622B2 true JPH0514622B2 (en) 1993-02-25

Family

ID=15224160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13852482A Granted JPS5929181A (en) 1982-08-11 1982-08-11 Paper conveying mechanism

Country Status (1)

Country Link
JP (1) JPS5929181A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6094374A (en) * 1983-10-28 1985-05-27 Fujitsu Ltd Printer
JPH0450133Y2 (en) * 1986-01-27 1992-11-26
JPH0666492B2 (en) * 1990-12-20 1994-08-24 松下電器産業株式会社 Gas laser oscillator and optical axis adjusting method thereof

Also Published As

Publication number Publication date
JPS5929181A (en) 1984-02-16

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