| 摘要 |
The present invention is a constant pressure ink supply for use in an inkjet printing system. The ink supply includes a flexible ink reservoir for containing ink, an ink outlet, and a spring which has an expanded position, and a contracted position. The ink supply is in fluid communication with an inkjet printhead. The flexible ink reservoir is disposed and arranged to engage the flexible ink reservoir as the spring transitions from the expanded position to the contracted position thereby rolling the flexible ink reservoir and the spring together to produce fluid at a substantially constant fluid pressure at a fluid outlet.
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