Bubble removing apparatus for inkjet printer

An image forming apparatus includes a bubble removing apparatus to remove bubbles from a channel and a chip of a printhead by applying a pressure to an ink circulation line using a pumping unit. The pumping unit includes a housing, a vibration unit to generate pressure variations to move ink from th...

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Bibliographische Detailangaben
1. Verfasser:	LIM SU MIN,KANG SUNG WOOK
Format:	Patent
Sprache:	eng
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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Beschreibung
Zusammenfassung:	An image forming apparatus includes a bubble removing apparatus to remove bubbles from a channel and a chip of a printhead by applying a pressure to an ink circulation line using a pumping unit. The pumping unit includes a housing, a vibration unit to generate pressure variations to move ink from the intake to the outlet including a circulation cam to circulate ink contained in the channel of the printhead along the ink circulation line and a purging cam to vibrate the vibration unit to discharge the ink contained in the chip of the printhead through a nozzle, and a clutch unit to transmit power from the motor to the circulation cam or the purging cam in a selective manner.