JP2012171115A - Thermal printer - Google Patents

Thermal printer Download PDF

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JP2012171115A
JP2012171115A JP2011032815A JP2011032815A JP2012171115A JP 2012171115 A JP2012171115 A JP 2012171115A JP 2011032815 A JP2011032815 A JP 2011032815A JP 2011032815 A JP2011032815 A JP 2011032815A JP 2012171115 A JP2012171115 A JP 2012171115A
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ribbon
roller
winding
transport direction
thermal printer
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Tomoaki Ueda
知昭 上田
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Sinfonia Technology Co Ltd
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Sinfonia Technology Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a thermal printer in which print quality is improved by preventing a ribbon from wrinkling during the conveyance of the ribbon, without requiring complicated control when performing a preparation operation involving the conveyance of the ribbon such as winding or unwinding of the ribbon.SOLUTION: The thermal printer performs a printing operation in which while the ribbon Rb is drawn from a supply side ribbon roller 20 to a thermal head 10, the ribbon Rb heated by the thermal head 10 is wound up onto a winding side ribbon roller 21. Also, the thermal printer performs a slacking operation in which while the ribbon roller 21 on the advancing side in the direction of ribbon conveyance is stopped, the ribbon Rb is drawn from the ribbon roller 20 on the hold-up side in the direction of ribbon conveyance, thereby slacking the ribbon Rb, and a winding operation in which while the ribbon roller 20 on the hold-up side in the direction of ribbon conveyance is stopped, the ribbon Rb slacked on the ribbon roller 21 on the advancing side in the direction of ribbon conveyance is wound up. Thereby, the ribbon Rb is conveyed in the preparation operation.

Description

本発明は、サーマルヘッドによりリボンを加熱してリボンのインク等の転写物を用紙等の記録媒体に熱転写するサーマルプリンタに関する。   The present invention relates to a thermal printer that heats a ribbon by a thermal head and thermally transfers a transfer material such as ink on the ribbon to a recording medium such as paper.

サーマルプリンタは、複数色のインク等の転写物を塗布したリボンをサーマルヘッドにより用紙等の記録媒体に押し当てた状態でリボンを記録媒体と共に搬送するとともに、サーマルヘッドによりリボンを加熱してリボンの転写物を記録媒体に熱転写する印刷装置である。   A thermal printer transports a ribbon with a recording medium such as paper, which is coated with a transfer material such as ink of a plurality of colors, with the recording medium while the ribbon is heated by the thermal head. It is a printing apparatus that thermally transfers a transferred material to a recording medium.

サーマルプリンタの一例として特許文献1には、供給側リボンローラ及び巻取側リボンローラと、各々のローラを回転駆動するDCモータ等の駆動部と、供給側リボンローラと駆動部との間に作用するトルクを制限するトルクリミッタとを有し、トルクリミッタに規定されたテンションをリボンに作用させた状態で供給側リボンローラと巻き取り側リボンローラとの間でリボンを繰り出すプリンタが開示されている。   As an example of a thermal printer, Patent Document 1 describes an operation between a supply-side ribbon roller and a take-up ribbon roller, a drive unit such as a DC motor that rotationally drives each roller, and a supply-side ribbon roller and the drive unit. There is disclosed a printer that includes a torque limiter that limits a torque to be applied and that feeds a ribbon between a supply-side ribbon roller and a take-up ribbon roller in a state where a tension defined by the torque limiter is applied to the ribbon. .

特開2007−62032号公報JP 2007-62032 A

上記のようなサーマルプリンタは、供給側リボンローラから繰り出されたリボンをサーマルヘッドで加熱して熱転写を行いながら、加熱済みのリボンを巻取側リボンへの巻き取る印刷動作と、この印刷動作を開始可能なレディ状態にするための準備動作とを実行可能に構成されている。準備動作は、例えば電源投入時に実行される初期化処理時やリボンの着脱操作がなされた後に実行されるチェック処理時等の所定の準備タイミングで実行されるもので、例えばリボン径等のリボンに関する情報を取得するために、供給側リボンローラから巻取側リボンローラへ向かうリボンの巻き取り又は巻取側リボンローラから供給側リボンローラへ向かうリボンの巻き戻しといったリボンの搬送を伴う動作である。このリボンの巻き取り又は巻き戻しは、トルクリミッタに設定されたテンションがリボンに作用する状態で行われる。   The thermal printer as described above performs the printing operation of winding the heated ribbon around the winding-side ribbon while performing thermal transfer by heating the ribbon fed from the supply-side ribbon roller with a thermal head, and this printing operation. It is configured to be able to execute a preparatory operation for making a ready state that can be started. The preparation operation is executed at a predetermined preparation timing such as an initialization process executed when the power is turned on or a check process executed after the ribbon is attached / detached. In order to acquire information, the operation involves the conveyance of the ribbon, such as winding the ribbon from the supply-side ribbon roller to the take-up ribbon roller or unwinding the ribbon from the take-up ribbon roller to the supply-side ribbon roller. The ribbon is wound or unwound in a state where a tension set in the torque limiter acts on the ribbon.

しかしながら、リボンの全ての部位に熱がかかっていない新品状態ではよいものの、準備動作の前に行った印刷動作によって熱の加わった加熱済部位を巻き取り又は巻き戻しすると、リボンに作用するテンションによりリボンの加熱済部位が伸びて次の印刷動作で使用する未加熱部位にシワが発生してしまい、印刷品質が損なわれてしまう。   However, although a new state where no heat is applied to all the parts of the ribbon is acceptable, if the heated part heated by the printing operation performed before the preparation operation is wound or rewound, the tension acting on the ribbon The heated portion of the ribbon is stretched and wrinkles are generated in the unheated portion used in the next printing operation, and the print quality is impaired.

一方、リボンにテンションが掛からないようにリボンを巻き戻し又は巻き戻すためには、供給側リボンローラによるリボンの搬送速度と、巻取側リボンローラによるリボンの搬送速度とを厳密に一致させる複雑な制御が必要となり、コストが増大してしまう。   On the other hand, in order to rewind or rewind the ribbon so that no tension is applied to the ribbon, the ribbon conveyance speed by the supply-side ribbon roller and the ribbon conveyance speed by the winding-side ribbon roller are strictly matched. Control is required, increasing costs.

本発明は、このような課題に着目してなされたものであって、その目的は、リボンの巻き取り又は巻き戻しといったリボンの搬送を伴う準備動作を行うにあたり、複雑な制御を要することなく、リボンの搬送時にリボンにシワが発生することを防止して印刷品質を向上させたサーマルプリンタを提供することである。   The present invention has been made paying attention to such problems, and the purpose thereof is to perform a preparation operation involving the conveyance of the ribbon such as winding or rewinding of the ribbon without requiring complicated control. It is an object of the present invention to provide a thermal printer that prevents wrinkles from being generated on the ribbon during the conveyance of the ribbon and improves the printing quality.

本発明は、かかる目的を達成するために、次のような手段を講じたものである。   In order to achieve this object, the present invention takes the following measures.

すなわち、本発明のサーマルプリンタは、サーマルヘッドによりリボンを加熱してリボンの転写物を記録媒体に熱転写するサーマルプリンタであって、供給側リボンローラと巻取側リボンローラとの間でリボンを繰り出し又は巻き戻すリボン搬送手段と、サーマルヘッドの加熱、前記リボン搬送手段を通じた供給側リボンローラからサーマルヘッドへのリボンの繰り出し及び加熱されたリボンの巻取側リボンローラへの巻き取りを関連づけた印刷動作と、供給側リボンローラから巻取側リボンローラへ向かうリボンの巻き取り搬送又は巻取側リボンローラから供給側リボンローラへ向かうリボンの巻き戻し搬送の少なくとも一方を伴う準備動作とを司る制御手段とを具備し、前記制御手段は、リボン搬送方向の進み側にあるリボンローラを停止した状態でリボン搬送方向の遅れ側にあるリボンローラからリボンを繰り出してリボンを弛ませる弛緩動作と、リボン搬送方向の遅れ側にあるリボンローラを停止した状態でリボン搬送方向の進み側にあるリボンローラに弛ませたリボンを巻き取る弛み巻取動作とを実行することにより、前記準備動作におけるリボンの搬送を行うように構成されていることを特徴とする。   That is, the thermal printer of the present invention is a thermal printer that heats a ribbon by a thermal head and thermally transfers a ribbon transfer to a recording medium, and feeds the ribbon between a supply side ribbon roller and a take-up side ribbon roller. Or, the ribbon transporting means to be rewound and the thermal head heating, the ribbon feeding from the supply side ribbon roller to the thermal head through the ribbon transporting means, and the winding of the heated ribbon to the winding side ribbon roller are associated with printing. Control means for controlling the operation and the preparatory operation involving at least one of winding and conveying the ribbon from the supply-side ribbon roller to the winding-side ribbon roller and rewinding and conveying the ribbon from the winding-side ribbon roller to the supply-side ribbon roller The control means stops the ribbon roller on the leading side in the ribbon transport direction. In this state, the ribbon is unrolled from the ribbon roller on the delay side in the ribbon transport direction to loosen the ribbon, and the ribbon roller on the delay side in the ribbon transport direction is stopped and the ribbon on the advance side in the ribbon transport direction The ribbon is transported in the preparation operation by performing a slack winding operation for winding the ribbon slackened on the roller.

このように、リボン搬送方向の進み側にあるリボンローラを停止した状態でリボン搬送方向の遅れ側にあるリボンローラからリボンを繰り出してリボンを弛ませる弛緩動作と、リボン搬送方向の遅れ側にあるリボンローラを停止した状態でリボン搬送方向の進み側にあるリボンローラに弛ませたリボンを巻き取る弛み巻取動作とを実行することにより、準備動作におけるリボンの搬送を行うように構成しているので、リボンにテンションがかからないようにリボンを巻き取り又は巻き戻すことができ、リボンの加熱済部位にテンションがかかってリボンにシワが発生することを防止して準備動作におけるリボンの適切な搬送を行うことが可能となる。   In this way, with the ribbon roller on the advancing side in the ribbon transport direction being stopped, the loosening operation of unwinding the ribbon from the ribbon roller on the lag side in the ribbon transport direction to loosen the ribbon, and on the delay side in the ribbon transport direction The ribbon is transported in the preparatory operation by executing a slack winding operation for winding the slacked ribbon around the ribbon roller on the leading side in the ribbon transport direction with the ribbon roller stopped. Therefore, the ribbon can be taken up or rewound so that the ribbon is not tensioned, and the ribbon is prevented from being wrinkled due to tension applied to the heated portion of the ribbon, so that the ribbon can be properly conveyed during the preparation operation. Can be done.

リボンにテンションがかからないようにリボンを巻き取り又は巻き戻す動作を容易に実現するためには、前記制御手段は、前記リボン搬送方向の遅れ側にあるリボンローラから予め定めた所定距離リボンを繰り出すとともに、前記リボン搬送方向の進み側にあるリボンローラに前記所定距離リボンを巻き取るように構成されていることが好ましい。   In order to easily realize the operation of winding or unwinding the ribbon so that no tension is applied to the ribbon, the control means feeds the ribbon a predetermined distance from the ribbon roller on the delay side in the ribbon transport direction. It is preferable that the ribbon is wound around the ribbon roller on the advancing side in the ribbon conveyance direction.

リボンにシワが発生することを回避しつつ、迅速なリボンの搬送を実現して準備動作に要する時間を抑制するためには、前記両リボンローラ間にリボンを張った状態にした場合にリボンにテンションのかかる所定範囲を予め設定しておくとともに、前記準備動作の開始時における前記所定範囲に対するリボンの加熱済部位及び未加熱部位の位置に関する開始時位置情報を予め設定しておき、前記準備動作の開始時からのリボンの搬送距離と前記開始時位置情報とに基づきリボンを両リボンローラ間に張った状態で搬送することによって前記加熱済部位にテンションがかかるか否かを判定し、前記加熱済部位にテンションがかかると判定した場合に前記弛緩動作及び前記弛み巻取動作を行うことによりリボンを搬送する一方、前記加熱済部位にテンションがかからないと判定した場合に両リボンローラの同時回転によりリボンを搬送するように構成されていることが望ましい。   In order to reduce the time required for the preparation operation by avoiding the occurrence of wrinkles on the ribbon and reducing the time required for the preparation operation, when the ribbon is stretched between the two ribbon rollers, A predetermined range where tension is applied is set in advance, and start position information regarding the positions of the heated and unheated portions of the ribbon with respect to the predetermined range at the start of the preparation operation is set in advance, and the preparation operation is performed Determining whether or not the heated portion is tensioned by conveying the ribbon while being stretched between both ribbon rollers based on the ribbon conveyance distance from the start of the ribbon and the starting position information. When it is determined that tension is applied to the finished part, the ribbon is conveyed by performing the relaxation operation and the slack winding operation, while the heated part is It is preferably configured to carry the ribbon by a simultaneous rotation of both the ribbon roller when it is determined that the Pensions is not applied.

好適な適用例としては、前記準備動作は、リボンの搬送を通じて前記印刷動作が開始可能なレディ状態にするための動作であることが挙げられる。   As a preferred application example, the preparation operation may be an operation for setting a ready state in which the printing operation can be started through conveyance of a ribbon.

さらに具体的な好適な適用例としては、前記準備動作は、電源投入時に実行される初期化処理時又はリボンの着脱に関する操作がなされた後に実行されるチェック処理時に行われるものが挙げられる。   As a more specific preferred application example, the preparatory operation may be performed at the time of initialization processing executed at power-on or at the time of check processing executed after an operation related to the attachment / detachment of the ribbon.

本発明は、以上説明したように、準備動作におけるリボンの搬送を上記の弛緩動作及び弛み巻取動作により行うので、リボンにテンションがかからないようにリボンを巻き取り又は巻き戻すことができ、リボンの加熱済部位にテンションがかかってリボンにシワが発生することを防止でき、準備動作におけるリボンの適切な搬送を行うことが可能となる。したがって、印刷品質を向上させたプリンタを提供することが可能となる。   In the present invention, as described above, since the ribbon is transported in the preparation operation by the above-described relaxation operation and the slack winding operation, the ribbon can be wound or rewound so that no tension is applied to the ribbon. It is possible to prevent the ribbon from being wrinkled due to tension applied to the heated portion, and the ribbon can be appropriately conveyed in the preparation operation. Therefore, it is possible to provide a printer with improved print quality.

本発明の一実施形態に係るサーマルプリンタを模式的に示す構成図。1 is a configuration diagram schematically showing a thermal printer according to an embodiment of the present invention. リボンにテンションのかかる所定位置及びこれに対するリボンの加熱済部位の位置に関する説明図。Explanatory drawing regarding the position where the ribbon is tensioned, and the position of the heated portion of the ribbon relative to this. 準備動作におけるリボンの巻き取り搬送を模式的に示す図。The figure which shows typically winding up conveyance of the ribbon in preparation operation | movement. 準備動作におけるリボンの巻き戻し搬送を模式的に示す図。The figure which shows typically the rewinding conveyance of the ribbon in preparation operation | movement. 準備動作を行うために実行される準備動作制御処理ルーチンを示すフローチャート。The flowchart which shows the preparation operation control processing routine performed in order to perform preparation operation. 準備動作を行うために実行される準備動作制御処理ルーチンを示すフローチャート。The flowchart which shows the preparation operation control processing routine performed in order to perform preparation operation.

以下、本発明の一実施形態を、図面を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態のサーマルプリンタは、図1に示すように、サーマルヘッド10及びサーマルヘッド10に対向するプラテンローラ11と、リボンRbをサーマルヘッド10に対して繰り出し又は巻き戻すリボン搬送手段2と、リボンRbの搬送状態を監視するリボン監視手段3と、ロール状に巻回された用紙等の記録媒体Paをサーマルヘッド10に対して供給可能に保持する給紙部4と、記録媒体Paを挟持して記録媒体Paを位置決め状態で搬送するフィードローラ50及びピンチローラ51と、記録媒体Paの搬送制御やリボンRbの搬送制御、サーマルヘッド10の加熱制御を行う制御手段6とを有し、記録媒体Pa及びリボンRbをサーマルヘッド10とプラテンローラ11で圧接した状態で搬送するとともに、サーマルヘッド10によりリボンRbを加熱してリボンRbに塗布されたインク等の転写物を記録媒体Paに熱転写する。   As shown in FIG. 1, the thermal printer of this embodiment includes a thermal head 10, a platen roller 11 that faces the thermal head 10, a ribbon transport unit 2 that feeds or rewinds the ribbon Rb to and from the thermal head 10, and a ribbon The ribbon monitoring means 3 for monitoring the transport state of Rb, the paper supply unit 4 for holding the recording medium Pa such as paper wound in a roll shape so as to be supplied to the thermal head 10, and the recording medium Pa are sandwiched. A feed roller 50 and a pinch roller 51 that convey the recording medium Pa in a positioning state, and a control means 6 that performs conveyance control of the recording medium Pa, conveyance control of the ribbon Rb, and heating control of the thermal head 10. Pa and ribbon Rb are conveyed in a state where they are in pressure contact with the thermal head 10 and the platen roller 11, and the thermal head 10 Thermal transfer recording medium Pa transcripts such as ink coated on the ribbon Rb is heated more ribbons Rb.

サーマルヘッド10及びプラテンローラ11は、相対接離可能に構成されて、サーマルヘッド10とプラテンローラ11とでリボンRb及び記録媒体Paを圧接したヘッドダウン状態(図1参照)と圧接状態を解放したヘッドアップ状態(図3参照)とを切り替え可能にしている。サーマルヘッド10には、リボンRbのインク等の転写物を記録媒体に熱転写するための図示しない発熱抵抗体が配列して設けてあり、一ライン単位での熱転写(印刷)を可能としている。   The thermal head 10 and the platen roller 11 are configured to be capable of relative contact and separation, and the head down state (see FIG. 1) in which the ribbon Rb and the recording medium Pa are press-contacted by the thermal head 10 and the platen roller 11 and the press-contact state are released. The head-up state (see FIG. 3) can be switched. The thermal head 10 is provided with a heating resistor (not shown) for thermally transferring a transfer material such as ink on the ribbon Rb to a recording medium, and enables thermal transfer (printing) in units of one line.

リボン搬送手段2は、図2に示すように、イエロー、マゼンタ、シアン等の有色インク、ラミネート層等の透明なコーティング剤の転写物が順に繰り出されるように転写物が塗布されたリボンRbを、図1に示すようにサーマルヘッド10に繰り出す供給側リボンローラ20と、サーマルヘッド10に繰り出されたリボンRbを巻き取る巻取側リボンローラ21と、両リボンローラ20・21を回転駆動するDCモータ等のリボン駆動部22・22と、供給側リボンローラ20とリボン駆動部22との間に作用するトルクを制限するトルクリミッタ23とを有し、供給側リボンローラ20と巻取側リボンローラ21との間でリボンRbの巻き取り又は巻き戻しを行う。具体的には、図3(c)に示すように、ヘッドアップ状態で巻取側リボンローラ21を回転駆動することによりトルクリミッタ23に定められたテンションをリボンRbに作用させた状態で供給側リボンローラ20から巻取側リボンローラ21へ向かうリボンの巻き取り搬送がなされ、逆に、図4(a)に示すように、ヘッドアップ状態で供給側リボンローラ20を回転駆動することによりトルクリミッタ23に規定されたテンションをリボンRbに作用させた状態で巻取側リボンローラ21から供給側リボンローラ20へ向かうリボンの巻き戻し搬送がなされる。ここで、リボンRbの巻き取り時には、図3に示すように、リボン搬送方向が供給側リボンローラ20から巻取側リボンローラ21へ向かう巻取方向となり、リボンRbの巻き戻し時には、図4に示すように、リボン搬送方向が巻取側リボンローラ21から供給側リボンローラ20へ向かう巻戻方向となる。なお、トルクリミッタ23は、本実施形態において供給側リボンローラ20とリボン駆動部22とを接続する位置に設けられているが、巻取側リボンローラ21とリボン駆動部22とを接続する位置に設けてもよい。   As shown in FIG. 2, the ribbon transport means 2 is a ribbon Rb to which a transfer material is applied so that a color ink such as yellow, magenta, and cyan, and a transfer material of a transparent coating agent such as a laminate layer are fed out in order. As shown in FIG. 1, a supply-side ribbon roller 20 fed to the thermal head 10, a take-up ribbon roller 21 that winds up the ribbon Rb fed to the thermal head 10, and a DC motor that rotationally drives both ribbon rollers 20 and 21. And the like, and a torque limiter 23 for limiting the torque acting between the supply side ribbon roller 20 and the ribbon drive unit 22, and the supply side ribbon roller 20 and the take-up side ribbon roller 21. The ribbon Rb is wound or unwound between the two. Specifically, as shown in FIG. 3 (c), the supply side in a state in which the tension determined on the torque limiter 23 is applied to the ribbon Rb by rotationally driving the winding side ribbon roller 21 in the head-up state. The ribbon is wound up and conveyed from the ribbon roller 20 toward the winding side ribbon roller 21, and conversely, as shown in FIG. 4A, the supply side ribbon roller 20 is rotationally driven in the head-up state to thereby turn the torque limiter. The ribbon is rewound and conveyed from the take-up ribbon roller 21 to the supply-side ribbon roller 20 in a state where the tension defined in 23 is applied to the ribbon Rb. Here, when winding the ribbon Rb, as shown in FIG. 3, the ribbon transport direction is the winding direction from the supply side ribbon roller 20 to the winding side ribbon roller 21, and when the ribbon Rb is rewound, FIG. As shown, the ribbon transport direction is the rewind direction from the take-up side ribbon roller 21 toward the supply-side ribbon roller 20. The torque limiter 23 is provided at a position where the supply side ribbon roller 20 and the ribbon drive unit 22 are connected in the present embodiment, but at a position where the winding side ribbon roller 21 and the ribbon drive unit 22 are connected. It may be provided.

リボン監視手段3は、図1に示すように、各々のリボンローラ20・21の単位時間あたりの回転量を検出するロータリエンコーダ等の回転検出部30を供給側リボンローラ20及び巻取側リボンローラに直接又は変速ギアを介してそれぞれ設けたもので、単位時間あたりの回転量を検出することにより単位時間あたりのリボンRbの搬送距離を検出する。検出結果は制御手段6に入力される。   As shown in FIG. 1, the ribbon monitoring means 3 includes a rotation detection unit 30 such as a rotary encoder that detects the amount of rotation of each ribbon roller 20, 21 per unit time, and supplies a supply side ribbon roller 20 and a winding side ribbon roller. Are provided directly or via a transmission gear, respectively, and the transport distance of the ribbon Rb per unit time is detected by detecting the rotation amount per unit time. The detection result is input to the control means 6.

制御手段6は、図1に示すように、各部の駆動制御を通じて、サーマルヘッド10の加熱、リボン搬送手段2を通じた供給側リボンローラ20からサーマルヘッド10へのリボンRbの繰り出し及び加熱されたリボンRbの巻取側リボンローラ21への巻き取りを関連づけた印刷動作や、この印刷動作を開始可能なレディ状態にするためにリボンRbの巻き取り又は巻き戻しといったリボンRbの搬送を伴う準備動作、その他印刷に必要な動作を司る。制御手段6は、周知のサーマルプリンタと同様にCPU、メモリ及びインターフェイスを具備する通常のマイクロコンピュータユニットにより構成されて、メモリ内に図示しない印刷制御処理ルーチンや図5及び図6に示す準備動作制御処理ルーチン等の所要のプログラムが書き込まれており、CPUは適宜必要なプログラムを呼び出して実行することにより、周辺ハードウェア資源と協働して、図1に示す印刷動作制御部60と、準備動作制御部61とを実現する。   As shown in FIG. 1, the controller 6 heats the thermal head 10 through drive control of each part, feeds the ribbon Rb from the supply-side ribbon roller 20 to the thermal head 10 through the ribbon transport unit 2, and the heated ribbon. A printing operation associated with winding the Rb around the winding-side ribbon roller 21, and a preparatory operation involving conveyance of the ribbon Rb such as winding or rewinding of the ribbon Rb in order to make the printing operation ready. Controls other operations necessary for printing. The control means 6 is constituted by a normal microcomputer unit having a CPU, a memory and an interface as in the known thermal printer, and a print control processing routine not shown in the memory and a preparatory operation control shown in FIGS. A necessary program such as a processing routine is written, and the CPU calls and executes a necessary program as appropriate, thereby cooperating with peripheral hardware resources and the printing operation control unit 60 shown in FIG. The control unit 61 is realized.

図1に示す印刷動作制御部60は、上記の印刷動作を制御するもので、プリンタステータスが印刷動作を開始可能なレディ状態である場合に、外部からの印刷指令に基づきイエロー、マゼンタ、シアン、ラミネート層の熱転写を行う印刷動作を行うために必要な各部の制御を行う。   A printing operation control unit 60 shown in FIG. 1 controls the above-described printing operation. When the printer status is a ready state in which the printing operation can be started, yellow, magenta, cyan, Control of each part necessary for performing a printing operation for performing thermal transfer of the laminate layer is performed.

準備動作制御部61は、所定の準備タイミングで、リボンRbの巻き取り又は巻き戻しといったリボンRbの搬送を伴う準備動作を行うために各部の制御を行う。この準備動作は、リボンRbの搬送を通じてリボン径等のリボンRbに関する情報又はリボンセンサの感度等の各部のチェック結果に関する情報を取得することにより、印刷動作を開始不能な状態から印刷動作の開始可能なレディ状態にする動作である。準備動作を行う所定の準備タイミングとしては、電源投入時に実行される初期化処理時やリボンの着脱操作がなされた後に実行されるチェック処理時等が設定されている。本実施形態では、準備動作制御部61は、上記リボンRbに関する情報や各部のチェック結果に関する情報を取得するために、両リボンローラ20・21の回転駆動を制御して、リボンRbの巻き取りを各情報取得に必要な距離行った後、元の位置までリボンRbを巻き戻す。この際、リボン監視手段3で検出されるリボンRbの搬送距離を参照する。   The preparatory operation control unit 61 controls each unit to perform a preparatory operation involving conveyance of the ribbon Rb such as winding or rewinding of the ribbon Rb at a predetermined preparation timing. This preparation operation can start the printing operation from a state where the printing operation cannot be started by acquiring information on the ribbon Rb such as the ribbon diameter or information on the check result of each part such as the sensitivity of the ribbon sensor through the conveyance of the ribbon Rb. This is an operation to make a ready state. As the predetermined preparation timing for performing the preparation operation, an initialization process that is executed when the power is turned on, a check process that is executed after the ribbon is attached or detached, and the like are set. In the present embodiment, the preparation operation control unit 61 controls the rotational driving of the ribbon rollers 20 and 21 to acquire the information about the ribbon Rb and the check result of each unit, thereby winding the ribbon Rb. After performing the distance necessary for each information acquisition, the ribbon Rb is rewound to the original position. At this time, the conveyance distance of the ribbon Rb detected by the ribbon monitoring unit 3 is referred to.

図1の制御手段6を構成するメモリには、図1及び図2に示すように、両リボンローラの間にリボンを張った状態にした場合にリボンにテンションのかかる所定範囲Rg1に関する情報63と、準備動作の開始時における所定範囲Rg1に対するリボンRbの加熱済部位Rb1及び未加熱部位Rb2の位置に関する開始時位置情報64とが予め設定されて記憶されている。また、準備動作制御部61は、準備動作におけるリボンRbの搬送距離と開始時位置情報64とに基づいて、現時点での所定範囲Rg1に対するリボンの加熱済部位Rb1及び未加熱部位Rb2の位置に関する現時点位置情報65を特定し、これを内部メモリに保持している。   As shown in FIGS. 1 and 2, the memory constituting the control means 6 in FIG. 1 includes information 63 relating to a predetermined range Rg1 where the ribbon is tensioned when the ribbon is stretched between both ribbon rollers. The starting position information 64 relating to the positions of the heated part Rb1 and the unheated part Rb2 of the ribbon Rb with respect to the predetermined range Rg1 at the start of the preparation operation is preset and stored. In addition, the preparation operation control unit 61, based on the transport distance of the ribbon Rb and the starting position information 64 in the preparation operation, the current time regarding the positions of the heated portion Rb1 and the unheated portion Rb2 of the ribbon with respect to the predetermined range Rg1 at the current time The position information 65 is specified and held in the internal memory.

すなわち、図1及び図5に示すように、制御手段6は、プリンタの電源投入時に実行される初期化処理、又は、リボンにアクセスするために筐体に設けられたカバーを閉じる操作などリボンの着脱に関する操作がなされた後に実行されるチェック処理のうちいずれかの処理が実行されているか否かを判定し(処理ST1参照)、初期化処理又はチェック処理の実行が開始したと判定した場合には(処理ST1:YES参照)、予め設定された開始時位置情報64を現時点位置情報65として準備動作を開始する(処理ST2参照)。   That is, as shown in FIG. 1 and FIG. 5, the control means 6 performs an initialization process executed when the printer is turned on, or an operation for closing the cover provided on the casing to access the ribbon. When it is determined whether any of the check processes executed after an operation related to attachment / detachment is performed (see process ST1), and when it is determined that the execution of the initialization process or the check process has started (See step ST1: YES), the start position information 64 set in advance is used as the current position information 65 to start the preparation operation (see step ST2).

まず、リボンの巻き取り動作を行うにあたり、図1及び図2に示すように、現時点位置情報65に基づきリボンRbを両リボンローラ20・21間に張った状態で搬送することにより加熱済部位Rb1にテンションがかかるか否かを判定する(図5の処理ST3参照)。具体的には、図2に示すように、所定範囲Rg1内に加熱済部位Rb1があるか否かによって判定する。なお、加熱済部位Rb1にテンションがかからないと判定した場合には(図5の処理ST3:NO参照)、後述する処理ST7を実行する。準備動作の開始時には、図2に示すように、加熱済部位Rb1が所定範囲Rg1にあるので、制御手段6は、リボンRbを両リボンローラ20・21間に張った状態で搬送することにより加熱済部位Rb1にテンションがかかると判定し(図5の処理ST3:YES参照)、図3(a)に示すように、リボン搬送方向(この場合は巻取方向となる)の進み側にある巻取側リボンローラ21を停止した状態でリボン搬送方向(巻取方向)の遅れ側にある供給側リボンローラ20からリボンRbを予め定めた所定距離Y1繰り出してリボンRbを弛ませる弛緩動作を行い(図5の処理ST4参照)、図3(b)に示すように、リボン搬送方向(巻取方向)の遅れ側にある供給側リボンローラ20を停止した状態でリボン搬送方向(巻取方向)の進み側にある巻取側リボンローラ21に弛ませたリボンRbを上記と同じ所定距離Y1巻き取る弛み巻取動作を行う(図5の処理ST5参照)。このとき、図3(b)に示すように、リボンRbの搬送距離である所定距離Y1を用いて現時点位置情報65を更新する。再び、図5に示す処理ST3と同様に加熱済部位Rb1にテンションがかかる否かを判定し(処理ST6参照)、加熱済部位Rb1にテンションがかからないと判定されるまで(図5の処理ST6:NO参照)、上記処理ST4〜5の弛緩動作及び弛み巻取動作からなる尺取虫動作を繰り返し行い、リボンの巻き取り搬送を行う。なお、ここでいう尺取虫動作は、リボンが弛み状態にある場合に、リボンの弛み方向(曲げ方向)がリボンの厚み方向の一方のみに限定されることを意味するものではない。   First, in performing the winding operation of the ribbon, as shown in FIGS. 1 and 2, the heated portion Rb1 is conveyed by conveying the ribbon Rb in a stretched state between the ribbon rollers 20 and 21 based on the current position information 65. It is determined whether or not tension is applied (see process ST3 in FIG. 5). Specifically, as shown in FIG. 2, the determination is made based on whether or not there is a heated portion Rb1 within a predetermined range Rg1. If it is determined that no tension is applied to the heated portion Rb1 (see step ST3: NO in FIG. 5), step ST7 described later is executed. At the start of the preparatory operation, as shown in FIG. 2, since the heated portion Rb1 is within the predetermined range Rg1, the control means 6 heats the ribbon Rb by conveying it in a stretched state between the ribbon rollers 20 and 21. It is determined that tension is applied to the finished portion Rb1 (see step ST3 in FIG. 5: YES), and as shown in FIG. 3A, the winding on the advance side in the ribbon transport direction (in this case, the winding direction). While the take-up ribbon roller 21 is stopped, the ribbon Rb is unrolled from the supply-side ribbon roller 20 on the delay side of the ribbon transport direction (winding direction) by a predetermined distance Y1 to loosen the ribbon Rb ( As shown in FIG. 3B), as shown in FIG. 3B, in the ribbon transport direction (winding direction) with the supply-side ribbon roller 20 on the delay side in the ribbon transport direction (winding direction) stopped. Progress Ribbon Rb which slackened the winding side ribbon roller 21 on the side performing the slack take-up operation to take the same predetermined distance Y1 wound and above (see the process of FIG. 5 ST5). At this time, as shown in FIG. 3B, the current position information 65 is updated using a predetermined distance Y1 which is the transport distance of the ribbon Rb. Again, similarly to the process ST3 shown in FIG. 5, it is determined whether or not the tension is applied to the heated part Rb1 (see process ST6), and it is determined that no tension is applied to the heated part Rb1 (process ST6 in FIG. 5: NO reference), the take-up insect operation consisting of the loosening operation and the slack-winding operation of the processes ST4 to ST5 is repeated, and the ribbon is wound up and conveyed. Note that the scale taking action here does not mean that when the ribbon is in a slack state, the slack direction (bending direction) of the ribbon is limited to only one in the thickness direction of the ribbon.

リボンRbの巻き取り搬送の結果、図3(c)に示すように、リボンRbの加熱済部位Rb1が巻取側リボンローラ21に巻き取られて所定範囲Rg1に加熱済部位Rb1がなく、リボンRbを両リボンローラ20・21間に張った状態で搬送することにより加熱済部位Rb1にテンションがかからないと判定された場合には(図5の処理ST6:NO参照)、図3(c)に示すように、両リボンローラ20・21の同時回転によりリボンRbを所要距離巻き取る搬送を行う(図5の処理ST7参照)。この場合も同様に、リボンRbの搬送距離を用いて現時点位置情報65を更新する。   As a result of winding and transporting the ribbon Rb, as shown in FIG. 3C, the heated portion Rb1 of the ribbon Rb is wound around the winding-side ribbon roller 21, and there is no heated portion Rb1 in the predetermined range Rg1. When it is determined that no tension is applied to the heated portion Rb1 by transporting Rb between the ribbon rollers 20 and 21 (see step ST6 in FIG. 5: NO), FIG. As shown in the drawing, the ribbon Rb is transported by a required distance by simultaneous rotation of both ribbon rollers 20 and 21 (see process ST7 in FIG. 5). In this case as well, the current position information 65 is updated using the transport distance of the ribbon Rb.

リボンRbの巻き取り搬送の後にリボンRbの巻き戻し搬送を行う場合には、上記と同様に、図1に示す現時点位置情報65に基づき加熱済部位Rb1にテンションがかかるか否かを判定する(図6の処理ST8参照)。この場合、図4(a)に示すように、巻戻方向は加熱済部位Rb1が巻取側リボンローラ21から繰り出される方向であるので、所定範囲Rg1を広げて余裕分を持たせた第二の所定範囲Rg2に加熱済部位Rb1があるか否かによって判定する。リボンRbの巻き戻し搬送を開始したときには、図4(a)に示すように、第二の所定範囲Rg2に加熱済部位Rb1がないので、制御手段6は、加熱済部位Rb1にテンションがかからないと判定し(図6の処理ST8:NO参照)、図4(a)に示すように、リボンRbの搬送距離を用いて現時点位置情報65を更新しつつ両リボンローラの同時回転によりリボンRbの巻き戻し搬送を行う。この際、図6の処理8のような加熱済部位Rb1にテンションがかかる否かの判定を行い、加熱済部位Rb1にテンションがかかると判定されるまで(図6の処理ST8:YES参照)、上記処理8〜9を繰り返す。   When rewinding and transporting the ribbon Rb after winding and transporting the ribbon Rb, it is determined whether tension is applied to the heated portion Rb1 based on the current position information 65 shown in FIG. (See process ST8 in FIG. 6). In this case, as shown in FIG. 4 (a), the rewind direction is the direction in which the heated portion Rb1 is fed out from the take-up side ribbon roller 21, so that the second range in which the predetermined range Rg1 is widened to have a margin. It is determined by whether or not there is a heated portion Rb1 in the predetermined range Rg2. When the rewinding conveyance of the ribbon Rb is started, as shown in FIG. 4A, since the heated portion Rb1 is not in the second predetermined range Rg2, the control means 6 does not apply tension to the heated portion Rb1. As shown in FIG. 4A, the current position information 65 is updated using the transport distance of the ribbon Rb, and the ribbon Rb is wound by the simultaneous rotation of both ribbon rollers, as shown in FIG. Carry back. At this time, it is determined whether or not the tension is applied to the heated portion Rb1 as in the process 8 of FIG. 6, and until it is determined that the heated portion Rb1 is tensioned (see step ST8 in FIG. 6: YES). The above processes 8 to 9 are repeated.

リボンの巻き戻し搬送の結果、図4(b)に示すように、リボンRbの加熱済部位Rb1が第二の所定範囲Rg2内にあるものの所定範囲Rg1内になく、リボンRbを両リボンローラ20・21間に張った状態で搬送することによって加熱済部位Rb1にテンションがかかると判定された場合には(図6の処理ST8:YES参照)、リボン搬送方向(この場合は巻戻方向となる)の進み側にある供給側リボンローラ20を停止した状態でリボン搬送方向(巻戻方向)の遅れ側にある巻取側リボンローラ21からリボンを予め定めた所定距離Y1繰り出してリボンを弛ませる弛緩動作を行い(図6の処理ST10参照)、図4(c)に示すように、リボン搬送方向(巻取方向)の遅れ側にある巻取側リボンローラ21を停止した状態でリボン搬送方向(巻戻方向)の進み側にある供給側リボンローラ20に弛ませたリボンRbを上記と同じ所定距離Y1巻き取る弛み巻取動作を行い(図6の処理ST11参照)、上記弛緩動作及び弛み巻取動作からなる尺取虫動作を繰り返し行うことによりリボンRbの位置を図3(a)に示す準備動作の開始時の位置まで戻し(図6の処理ST12:YES参照)、印刷動作を開始可能なレディ状態にプリンタステータスを変更して準備動作を完了する(図6の処理ST13参照)。そして、印刷指令がある場合には、印刷動作制御部60により上記の印刷動作が開始されて、熱転写(印刷)がなされる。   As a result of the rewinding conveyance of the ribbon, as shown in FIG. 4B, the heated portion Rb1 of the ribbon Rb is within the second predetermined range Rg2, but not within the predetermined range Rg1, and the ribbon Rb is removed from both ribbon rollers 20. -When it is determined that tension is applied to the heated portion Rb1 by carrying it in a stretched state between 21 (see step ST8: YES in FIG. 6), the ribbon carrying direction (in this case, the rewinding direction) ) In a state where the supply side ribbon roller 20 on the advancing side is stopped, the ribbon is fed out by a predetermined distance Y1 from the winding side ribbon roller 21 on the delay side in the ribbon transport direction (rewinding direction) to loosen the ribbon. A relaxation operation is performed (see process ST10 in FIG. 6). As shown in FIG. 4C, the ribbon ribbon roller 21 on the delay side in the ribbon transport direction (winding direction) is stopped and the ribbon is stopped. A slack winding operation is performed in which the ribbon Rb slackened to the supply side ribbon roller 20 on the leading side in the transport direction (rewinding direction) is wound by the same predetermined distance Y1 as above (see process ST11 in FIG. 6). Then, by repeatedly performing the scale take-up operation including the slack winding operation, the position of the ribbon Rb is returned to the position at the start of the preparation operation shown in FIG. 3A (see processing ST12: YES in FIG. 6), and the printing operation is started. The printer status is changed to a ready state where possible, and the preparation operation is completed (see process ST13 in FIG. 6). When there is a print command, the printing operation control unit 60 starts the printing operation and performs thermal transfer (printing).

以上のように本実施形態に係るサーマルプリンタは、サーマルヘッド10によりリボンRbを加熱してリボンRbの転写物を記録媒体Paに熱転写するサーマルプリンタであって、供給側リボンローラ20と巻取側リボンローラ21との間でリボンRbを繰り出し又は巻き戻すリボン搬送手段2と、サーマルヘッド10の加熱、リボン搬送手段2を通じた供給側リボンローラ20からサーマルヘッド10へのリボンRbの繰り出し及び加熱されたリボンRbの巻取側リボンローラ21への巻き取りを関連づけた印刷動作と、供給側リボンローラ20から巻取側リボンローラ21へ向かうリボンRbの巻き取り搬送又は巻取側リボンローラ21から供給側リボンローラ20へ向かうリボンRbの巻き戻し搬送の少なくとも一方を伴う準備動作とを司る制御手段6とを具備し、制御手段6は、リボン搬送方向の進み側にあるリボンローラ21(20)を停止した状態でリボン搬送方向の遅れ側にあるリボンローラ20(21)からリボンRbを繰り出してリボンRbを弛ませる弛緩動作と、リボン搬送方向の遅れ側にあるリボンローラ20(21)を停止した状態でリボン搬送方向の進み側にあるリボンローラ21(20)に弛ませたリボンRbを巻き取る弛み巻取動作とを実行することにより、準備動作におけるリボンRbの搬送を行うように構成されている。   As described above, the thermal printer according to the present embodiment is a thermal printer that heats the ribbon Rb by the thermal head 10 to thermally transfer the transferred material of the ribbon Rb to the recording medium Pa, and includes the supply side ribbon roller 20 and the winding side. Ribbon transport means 2 for feeding or rewinding ribbon Rb to and from ribbon roller 21, heating of thermal head 10, feeding of ribbon Rb from supply-side ribbon roller 20 to thermal head 10 through ribbon transport means 2, and heating. Printing operation associated with winding of the ribbon Rb to the take-up ribbon roller 21 and take-up conveyance of the ribbon Rb from the supply-side ribbon roller 20 to the take-up ribbon roller 21 or supply from the take-up ribbon roller 21 A preparatory operation involving at least one of rewinding and transporting the ribbon Rb toward the side ribbon roller 20; The control means 6 controls the ribbon Rb from the ribbon roller 20 (21) on the delay side in the ribbon transport direction while the ribbon roller 21 (20) on the advance side in the ribbon transport direction is stopped. And the ribbon loosened by the ribbon roller 21 (20) on the leading side in the ribbon transport direction while the ribbon roller 20 (21) on the delay side in the ribbon transport direction is stopped. By performing a slack winding operation for winding Rb, the ribbon Rb is conveyed in the preparation operation.

このように、リボン搬送方向の進み側にあるリボンローラ21(20)を停止した状態でリボン搬送方向の遅れ側にあるリボンローラ20(21)からリボンRbを繰り出してリボンRbを弛ませる弛緩動作と、リボン搬送方向の遅れ側にあるリボンローラ20(21)を停止した状態でリボン搬送方向の進み側にあるリボンローラ21(20)に弛ませたリボンRbを巻き取る弛み巻取動作とを実行することにより、準備動作におけるリボンRbの搬送を行うように構成しているので、リボンRbにテンションがかからないようにリボンRbを巻き取り又は巻き戻すことができ、リボンRbの加熱済部位Rb1にテンションがかかってリボンRbにシワが発生することを防止でき、準備動作におけるリボンの適切な搬送を行うことが可能となる。   In this way, the loosening operation of unwinding the ribbon Rb by unwinding the ribbon Rb from the ribbon roller 20 (21) on the lag side in the ribbon transport direction with the ribbon roller 21 (20) on the leading side in the ribbon transport direction stopped. And a slack winding operation for winding the ribbon Rb that has been slackened around the ribbon roller 21 (20) on the leading side in the ribbon transport direction while the ribbon roller 20 (21) on the delay side in the ribbon transport direction is stopped. By executing, the ribbon Rb is transported in the preparatory operation, so that the ribbon Rb can be wound or rewound so that no tension is applied to the ribbon Rb, and the ribbon Rb is heated to the heated portion Rb1. It is possible to prevent the ribbon Rb from being wrinkled due to tension, and to appropriately transport the ribbon in the preparation operation. That.

特に、ラミネート層を熱転写するにあたり、ドット毎の熱量をランダムに変化させるマット印刷を行う場合には、ラミネート層全体を一定の熱量で熱転写する場合に比べて、リボンの加熱済部位にかかるテンションに起因してシワが発生しやすいので、上記尺取虫動作によるリボン搬送が効果的である。   In particular, when performing thermal printing on the laminate layer, when performing mat printing that randomly changes the amount of heat for each dot, the tension applied to the heated portion of the ribbon is greater than when the entire laminate layer is thermally transferred with a constant amount of heat. As a result, wrinkles are likely to occur, and ribbon transport by the above-mentioned insect take-up operation is effective.

さらに、本実施形態では、制御手段6は、リボン搬送方向の遅れ側にあるリボンローラ20(21)から予め定めた所定距離Y1のリボンRbを繰り出すとともに、リボン搬送方向の進み側にあるリボンローラ21(20)に所定距離Y1のリボンRbを巻き取るように構成されているので、リボンRbを弛ませるために繰り出した距離Y1と、弛んだリボンRbを巻き取る距離Y1とが一致するので、リボンRbにテンションがかからないようにリボンRbを巻き取り又は巻き戻す動作を容易に実現することが可能となる。しかも、予め定める所定距離Y1を、リボンRbの弛みが過大にならないように設定すれば、リボンRbの弛みすぎによりリボンRbにシワが生じることを回避することも可能となる。   Further, in the present embodiment, the control means 6 feeds out the ribbon Rb of a predetermined distance Y1 from the ribbon roller 20 (21) on the delay side in the ribbon transport direction, and the ribbon roller on the advance side in the ribbon transport direction. Since the ribbon Rb of a predetermined distance Y1 is wound around 21 (20), the distance Y1 fed out to loosen the ribbon Rb and the distance Y1 wound up of the loosened ribbon Rb coincide with each other. It is possible to easily realize the operation of winding or rewinding the ribbon Rb so that the ribbon Rb is not tensioned. Moreover, if the predetermined distance Y1 is set so that the slack of the ribbon Rb does not become excessive, it is possible to avoid wrinkling of the ribbon Rb due to excessive slack of the ribbon Rb.

さらにまた、両リボンローラ20・21間にリボンRbを張った状態にした場合にリボンRbにテンションのかかる所定範囲Rg1を予め設定しておくとともに、準備動作の開始時における所定範囲Rg1に対するリボンRbの加熱済部位Rb1及び未加熱部位Rb2の位置に関する開始時位置情報64を予め設定しておき、準備動作の開始時からのリボンRbの搬送距離と開始時位置情報64とに基づきリボンRbを両リボンローラ20・21間に張った状態で搬送することによって加熱済部位Rb1にテンションがかかるか否かを判定し、加熱済部位Rb1にテンションがかかると判定した場合に弛緩動作及び弛み巻取動作を行うことによりリボンRbを搬送する一方、加熱済部位Rb1にテンションがかからないと判定した場合に両リボンローラ20・21の同時回転によりリボンRbを搬送するように構成されているので、テンションをかけるとシワが発生する可能性のある加熱済部位Rb1が、両リボンローラ20・21間にリボンRbを張った状態にした場合にテンションのかかる所定範囲Rg1にあり、リボンRbを両リボンローラ20・21間に張った状態で搬送することにより加熱済部位Rb1にテンションがかかると判定される場合には、弛緩動作及び弛み巻取動作からなる尺取虫動作を行うことで加熱済部位Rb1にテンションをかけないようにリボンRbを搬送する一方、加熱済部位Rb1にテンションがかからないと判定される場合には、両リボンローラ20・21を同時駆動して迅速なリボンRbの搬送を行う。したがって、リボンRbにシワが発生することを回避しつつ、迅速なリボンRbの搬送を実現することができ、準備動作に要する時間を抑制することが可能となる。   Furthermore, when the ribbon Rb is stretched between the two ribbon rollers 20 and 21, a predetermined range Rg1 to which the ribbon Rb is tensioned is set in advance, and the ribbon Rb with respect to the predetermined range Rg1 at the start of the preparation operation is set. The starting position information 64 relating to the positions of the heated part Rb1 and the unheated part Rb2 is set in advance, and both ribbons Rb are transferred based on the transport distance of the ribbon Rb from the start of the preparation operation and the starting position information 64. It is determined whether or not tension is applied to the heated region Rb1 by conveying the ribbon rollers 20 and 21 while being stretched, and when it is determined that tension is applied to the heated region Rb1, a loosening operation and a slack winding operation are determined. When the ribbon Rb is transported by performing the process, it is determined that no tension is applied to the heated portion Rb1. Since the ribbon Rb is transported by the simultaneous rotation of the roller 20/21, the heated portion Rb1, which may be wrinkled when tension is applied, causes the ribbon Rb to pass between the ribbon rollers 20, 21. When it is determined that the tension is applied to the heated region Rb1 by transporting the ribbon Rb between the ribbon rollers 20 and 21 while being in the predetermined range Rg1 where the tension is applied in the tensioned state. When it is determined that the ribbon Rb is transported so as not to apply tension to the heated portion Rb1 by performing a scale insect operation consisting of a loosening operation and a slack winding operation, while it is determined that no tension is applied to the heated portion Rb1. Both ribbon rollers 20 and 21 are driven simultaneously to carry the ribbon Rb quickly. Therefore, the ribbon Rb can be quickly conveyed while avoiding the occurrence of wrinkles in the ribbon Rb, and the time required for the preparation operation can be suppressed.

本実施形態では、準備動作が、リボンRbの搬送を通じて印刷動作が開始可能なレディ状態にするための動作であるので、上記発明の好適な実施例といえる。   In the present embodiment, the preparatory operation is an operation for setting the ready state in which the printing operation can be started through the conveyance of the ribbon Rb.

その他、本実施形態では、準備動作が、電源投入時に実行される初期化処理時又はリボンの着脱に関する操作がなされた後に実行されるチェック処理時に行われるので、上記発明の好適な実施例といえる。   In addition, in the present embodiment, the preparatory operation is performed at the time of initialization processing that is performed when the power is turned on or at the time of check processing that is performed after an operation related to the attachment / detachment of the ribbon is performed. .

以上、本発明の実施形態について図面に基づいて説明したが、具体的な構成は、これらの実施形態に限定されるものでないと考えられるべきである。本発明の範囲は、上記した実施形態の説明だけではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。   As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

例えば、本実施形態では、準備動作としてリボンの巻き取り及び巻き戻しの双方を行うように構成されているが、準備動作としていずれか一方のみを行うように構成してもよい。   For example, in the present embodiment, both the winding and rewinding of the ribbon are performed as the preparation operation. However, only one of the preparation operations may be performed.

その他、各部の具体的な構成は、上述した実施形態のみに限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変形が可能である。   In addition, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

10…サーマルヘッド
2…リボン搬送手段
20…供給側リボンローラ
21…巻取側リボンローラ
6…制御手段
64…開始時位置情報
Rb…リボン
Pa…記録媒体
Y1…所定距離
Rg1…所定範囲
DESCRIPTION OF SYMBOLS 10 ... Thermal head 2 ... Ribbon conveyance means 20 ... Supply side ribbon roller 21 ... Winding side ribbon roller 6 ... Control means 64 ... Starting position information Rb ... Ribbon Pa ... Recording medium Y1 ... Predetermined distance Rg1 ... Predetermined range

Claims (5)

サーマルヘッドによりリボンを加熱してリボンの転写物を記録媒体に熱転写するサーマルプリンタであって、
供給側リボンローラと巻取側リボンローラとの間でリボンを繰り出し又は巻き戻すリボン搬送手段と、
サーマルヘッドの加熱、前記リボン搬送手段を通じた供給側リボンローラからサーマルヘッドへのリボンの繰り出し及び加熱されたリボンの巻取側リボンローラへの巻き取りを関連づけた印刷動作と、供給側リボンローラから巻取側リボンローラへ向かうリボンの巻き取り搬送又は巻取側リボンローラから供給側リボンローラへ向かうリボンの巻き戻し搬送の少なくとも一方を伴う準備動作とを司る制御手段とを具備し、
前記制御手段は、リボン搬送方向の進み側にあるリボンローラを停止した状態でリボン搬送方向の遅れ側にあるリボンローラからリボンを繰り出してリボンを弛ませる弛緩動作と、リボン搬送方向の遅れ側にあるリボンローラを停止した状態でリボン搬送方向の進み側にあるリボンローラに弛ませたリボンを巻き取る弛み巻取動作とを実行することにより、前記準備動作におけるリボンの搬送を行うように構成されていることを特徴とするサーマルプリンタ。
A thermal printer that heats a ribbon by a thermal head and thermally transfers a ribbon transfer to a recording medium,
Ribbon transport means for feeding or rewinding the ribbon between the supply side ribbon roller and the take-up side ribbon roller;
Printing operation relating heating of the thermal head, feeding of the ribbon from the supply side ribbon roller through the ribbon conveying means to the thermal head, and winding of the heated ribbon to the take up side ribbon roller, and from the supply side ribbon roller A control means for performing a preparatory operation involving at least one of winding and transporting the ribbon toward the winding-side ribbon roller or unwinding and transporting the ribbon from the winding-side ribbon roller to the supply-side ribbon roller;
The control means is configured to loosen the ribbon by unwinding the ribbon from the ribbon roller on the lag side in the ribbon transport direction with the ribbon roller on the advance side in the ribbon transport direction stopped, and on the lag side in the ribbon transport direction. The ribbon is transported in the preparatory operation by performing a slack winding operation for winding the slacked ribbon on the ribbon roller on the leading side in the ribbon transport direction while a certain ribbon roller is stopped. A thermal printer.
前記制御手段は、前記リボン搬送方向の遅れ側にあるリボンローラから予め定めた所定距離リボンを繰り出すとともに、前記リボン搬送方向の進み側にあるリボンローラに前記所定距離リボンを巻き取るように構成されている請求項1に記載のサーマルプリンタ。   The control means is configured to feed a ribbon of a predetermined distance from a ribbon roller on the delay side in the ribbon transport direction, and to wind the ribbon on the ribbon roller on the advance side in the ribbon transport direction. The thermal printer according to claim 1. 前記両リボンローラ間にリボンを張った状態にした場合にリボンにテンションのかかる所定範囲を予め設定しておくとともに、前記準備動作の開始時における前記所定範囲に対するリボンの加熱済部位及び未加熱部位の位置に関する開始時位置情報を予め設定しておき、前記準備動作の開始時からのリボンの搬送距離と前記開始時位置情報とに基づきリボンを両リボンローラ間に張った状態で搬送することによって前記加熱済部位にテンションがかかるか否かを判定し、前記加熱済部位にテンションがかかると判定した場合に前記弛緩動作及び前記弛み巻取動作を行うことによりリボンを搬送する一方、前記加熱済部位にテンションがかからないと判定した場合に両リボンローラの同時回転によりリボンを搬送するように構成されている請求項1又は2に記載のサーマルプリンタ。   When a ribbon is stretched between the two ribbon rollers, a predetermined range in which the ribbon is tensioned is set in advance, and a heated portion and an unheated portion of the ribbon with respect to the predetermined range at the start of the preparation operation By setting the starting position information related to the position of the ribbon in advance and transporting the ribbon in a stretched state between both ribbon rollers based on the ribbon transport distance from the start of the preparation operation and the starting position information. It is determined whether tension is applied to the heated portion, and when it is determined that tension is applied to the heated portion, the ribbon is conveyed by performing the relaxation operation and the slack winding operation, while the heated portion When it is determined that no tension is applied to the part, the ribbon is conveyed by simultaneous rotation of both ribbon rollers. The thermal printer according to 1 or 2. 前記準備動作は、リボンの搬送を通じて前記印刷動作が開始可能なレディ状態にするための動作である請求項1〜3のいずれかに記載のサーマルプリンタ。   The thermal printer according to any one of claims 1 to 3, wherein the preparation operation is an operation for setting a ready state in which the printing operation can be started through conveyance of a ribbon. 前記準備動作は、電源投入時に実行される初期化処理時又はリボンの着脱に関する操作がなされた後に実行されるチェック処理時に行われる請求項4に記載のサーマルプリンタ。   5. The thermal printer according to claim 4, wherein the preparation operation is performed during an initialization process performed at power-on or a check process performed after an operation related to attachment / detachment of a ribbon.
JP2011032815A 2011-02-18 2011-02-18 Thermal printer Withdrawn JP2012171115A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017007151A (en) * 2015-06-18 2017-01-12 大日本印刷株式会社 Thermal transfer system and control method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017007151A (en) * 2015-06-18 2017-01-12 大日本印刷株式会社 Thermal transfer system and control method therefor

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