Discharge unit and discharge apparatus

The backing pressure of an ink tank is controlled. The ink tank is connected to a pressure control apparatus. The pressure control apparatus has first and second check valves. When the internal pressure of the ink tank becomes smaller than that of outside atmosphere by a first predetermined pressure...

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Bibliographic Details
Main Authors Miyata, Takahiro, Murata, Masao, Shiba, Satoshi, Minami, Hirofumi, Satou, Seiichi, Musha, Kazuhiro, Yahagi, Mitsuru, Yuyama, Jyunpei
Format Patent
LanguageEnglish
Published 01.05.2012
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