| 摘要 |
An inexpensive ink feeding container which enables to adequately generate negative pressure and maintain it without any necessity for using a porous absorbing material, a spring or the like, and moreover, can adapt to an environment. The ink supply container includes an ink supply passage extending to a recording head section, a volume variable negative pressure regulating chamber which is disposed on the bottom of a box-like casing, is communicated with atmosphere and makes it possible to regulate a negative pressure corresponding to the feeding of ink, and an atmosphere communication hole disposed outside of the negative pressure regulating chamber and in the vicinity of the bottom.
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