Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2006-12-19
2006-12-19
Meier, Stephen (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S030000, C347S087000
Reexamination Certificate
active
07150519
ABSTRACT:
An ink jet recording apparatus comprises a recording head including a discharge port for discharging ink, a first liquid chamber at the upstream side in the direction of ink flow toward the discharge port, and a second liquid chamber at the downstream side, an ink tank for containing ink to be supplied to the recording head, an ink supply tube for causing the ink tank to communicate with the recording head, a shut-off valve provided in the ink supply tube and opening or closing the ink supply tube, a cap for covering the discharge port; and a suction pump for forcedly discharging the ink in the recording head from the discharge port when the cap covers the discharge port. The shut-off valve is opened when the first and second liquid chambers are reduced to respectively desired pressures by the suction pump in a state where the cap covers the discharge port and the shut-off valve is closed, whereby the ink in the ink tank is supplied through the ink supply tube to the first and second liquid chambers.
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Kageyama Tetsuto
Kono Takeshi
Kurata Mitsuru
Sasaki Toshihiro
Shima Takeaki
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Meier Stephen
Mruk Geoffrey S.
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