THERMAL TRANSFER PRINTER

PURPOSE:To prevent the tone of transfer from being changed at an intermediate part of a line or a page, even when an ink ribbon used up is replaced by a fresh one, by detecting an end alarm mark provided at a predetermined position of the ink ribbon. CONSTITUTION:When a sensor 28 detects the end ala...

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Bibliographische Detailangaben
Hauptverfasser: SASAKI AKIRA, SAITOU SHIYOUJI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To prevent the tone of transfer from being changed at an intermediate part of a line or a page, even when an ink ribbon used up is replaced by a fresh one, by detecting an end alarm mark provided at a predetermined position of the ink ribbon. CONSTITUTION:When a sensor 28 detects the end alarm mark provided on the ink ribbon at a position spaced from the trailing end of the ribbon by a one-line or one-page length, completion of transfer is detected through a wave-shaping circuit 29, a holding circuit 30, a detecting circuit 31, a controlling circuit 33 for outputting a transfer completion signal or the like, and a ribbon end indicator 32 is turned ON to inform the operator of the completion of transfer. Accordingly, even when the ink ribbon used up is replaced by a fresh one, transfer is prevented from being performed starting from an intermediate part of a line or a page, the tone of transfer is thus prevented from being changed at an intermediate part of a line or a page, and transfer can be performed with high quality.