INK JET PRINTER

To provide an ink jet printer which can determine whether a meniscus of ink in a nozzle of an ink jet head is broken while avoiding complication of the configuration of the device.SOLUTION: A control section controls a printing section 2 and a pressure generation section 3 so that a circulation oper...

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Bibliographische Detailangaben
1. Verfasser:	TSUJINO NAOTO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Zusammenfassung:	To provide an ink jet printer which can determine whether a meniscus of ink in a nozzle of an ink jet head is broken while avoiding complication of the configuration of the device.SOLUTION: A control section controls a printing section 2 and a pressure generation section 3 so that a circulation operation is performed in which ink is circulated between a storage section 21 and an ink jet head 11 while the liquid level of the ink in the storage section 21 is maintained at a reference level. In addition, the control part determines that a meniscus of the ink in a nozzle is destroyed if the time from the start of the circulation operation until the liquid level of the ink in the storage part 21 reaches the reference level exceeds a threshold value.SELECTED DRAWING: Figure 2 【課題】装置構成の複雑化を抑えつつ、インクジェットヘッドのノズル内のインクのメニスカスが破壊されたか否かを判断できるインクジェット印刷装置を提供する。【解決手段】制御部は、貯留部２１内のインクの液面高さが基準高さを維持しつつ貯留部２１とインクジェットヘッド１１との間でインクを循環させる循環動作を行うよう印刷部２および圧力生成部３を制御する。また、制御部は、循環動作の開始から貯留部２１内のインクの液面高さが基準高さとなるまでの時間が閾値を超えた場合、ノズル内のインクのメニスカスが破壊されていると判断する。【選択図】図２