Patent ID: 9061503
Filing Date: 2015-06-23
Classification: B41J

Abstract:
1. A suction device for an ejection head provided with a nozzle, comprising: a cap that is capable of sealing a nozzle surface provided with the nozzle; a decompression device; a suction passage provided between the cap and the decompression device, a first valve provided in the suction passage on the cap side thereof; and a second valve provided in the suction passage on the decompression device side thereof; the decompression device being disposed other than between the first valve and the second valve, a liquid with which the ejection head has been filled is sucked out from the nozzle via the cap by controlling a negative pressure level of the suction passage on the basis of a volume of the suction passage between the first valve and the second valve with the decompression device.