Liquid-droplet ejecting apparatus

Details Liquid-droplet ejecting apparatus Liquid-droplet ejecting apparatus

2011-06-21

2011-06-21

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07963626

ABSTRACT:
A liquid-droplet ejecting apparatus, including: a main tank which stores liquid; a head unit including a sub tank which accommodates the liquid supplied from the main tank, and an ejecting head which ejects droplets of the liquid supplied from the sub tank; a liquid supply passage communicating, at one end thereof, with the main tank and communicating, at the other end thereof, with the sub tank such that the liquid is supplied from the main tank to the sub tank through the liquid supply passage; a first detector configured to detect presence and absence of the liquid stored in the main tank; a second detector configured to detect presence and absence of the liquid in the liquid supply passage; and a controller configured to perform various operations for the liquid-droplet ejecting apparatus and including an empty judging section which judges that the main tank is empty of the liquid where the absence of the liquid in the main tank is detected by the first detector and the absence of the liquid in the liquid supply passage is detected by the second detector.

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