Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-06-06
2006-06-06
Feggins, K. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
07055932
ABSTRACT:
An ejection apparatus has a carriage which moves relative to a workpiece. A function liquid droplet ejection head is held by the carriage and is provided with an ejection nozzle formed in a nozzle forming surface of a head main body. A liquid supply tank is connected to the ejection head. A cap unit is disposed in a position away from the workpiece and is provided, in a position corresponding to the function liquid droplet ejection head, with a cap which is connected to the suction pump and which is brought into intimate contact with the nozzle forming surface of the function liquid droplet ejection head so that the liquid of the liquid supply tank is filled into a flow passage inside the ejection head by a suction force to be operated upon through the cap. A gate valve is interposed in the liquid supply passage between the ejection head and the liquid supply tank. The gate valve is temporarily closed in the course of filling the liquid into the flow passage inside the ejection head, while maintaining suction by the cap.
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