Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-05-20
2008-05-20
Hsieh, Shih-wen (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S029000, C347S030000, C347S032000
Reexamination Certificate
active
07374272
ABSTRACT:
A liquid ejecting apparatus includes: a head member having a nozzle and a liquid-ejecting unit; a main controlling part that drives the liquid-ejecting unit based on ejecting data; a capping member relatively movable between a position away from the head member and a position in contact with the head member; a suction way communicated with an inside of the capping member; and a built-in slide-rotator type of positive displacement pump provided in the suction way. A state-quantity recognizing part recognizes a state quantity related to a dry state in an inside of the positive displacement pump. A judging part judges whether the inside of the positive displacement pump is dry, by comparing the state quantity with a standard state quantity. A preliminary-operation carrying-out part carries out a preliminary operation for wetting the inside of the positive displacement pump, when the inside of the positive displacement pump is dry.
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Iwasaki Mitsutaka
Seshimo Tatsuya
Hsieh Shih-Wen
Seiko Epson Corporation
Sughrue & Mion, PLLC
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