| 发明名称 |
INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD |
| 摘要 |
An ink jet printing apparatus includes a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink, a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber, an opening and closing unit configured to open and close the communication path, and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other. |
| 申请公布号 |
US2015085004(A1) |
申请公布日期 |
2015.03.26 |
| 申请号 |
US201414489745 |
申请日期 |
2014.09.18 |
| 申请人 |
CANON FINETECH INC. |
发明人 |
YAMAGUCHI Kenro;Sugai Takashi;Ota Noritaka |
| 分类号 |
B41J2/175;B41J2/14 |
主分类号 |
B41J2/175 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An ink jet printing apparatus comprising:
a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink; a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber; an opening and closing unit configured to open and close the communication path; and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other. |
| 地址 |
Misato-shi JP |
