Patent ID: 9527292
Filing Date: 2016-12-27
CPC Classification: B41J

Claim Text:
1. A waste ink recovery unit comprising: a waste ink recovery tank; a first mixing tube connected to a first waste ink inlet of the waste ink recovery tank; a first cap covering a first ink nozzle that ejects ink; a second cap covering a second ink nozzle that ejects ink; a first tube that connects the first cap and the first mixing tube; a second tube that connects the second cap and the first mixing tube; a first suction pump configured to suction a first fluid from the first cap and a second fluid from the second cap, and to mix the first fluid and second fluid through the first mixing tube; a second mixing tube connected to a second waste ink inlet of the waste ink recovery tank; a third cap covering a third ink nozzle that ejects ink; a fourth cap covering a fourth ink nozzle that ejects ink; a third tube that connects the third cap and the second mixing tube; a fourth tube that connects the fourth cap and the second mixing tube; and a second suction pump that is driven independently of the first suction pump, and is configured to suction a third fluid from the third cap and a fourth fluid from the fourth cap, and to mix the first fluid and second fluid through the second mixing tube.