초록 ▼

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 i

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.

대표청구항 ▼

[ What is claimed is:] [1.]1. An ink supply for providing ink to an inkjet printing system, the ink supply comprising:a flexible fluid reservoir for containing a quantity of fluid;a spring having an expanded position, and a contracted position; anda housing including an interior surface and an apert

[ What is claimed is:] [1.]1. An ink supply for providing ink to an inkjet printing system, the ink supply comprising:a flexible fluid reservoir for containing a quantity of fluid;a spring having an expanded position, and a contracted position; anda housing including an interior surface and an aperture, the flexible fluid reservoir and aperture being layered and disposed interior of the housing;wherein the spring is configured to operatively engage the flexible fluid reservoir as the spring transitions from the expanded position to the contracted position;wherein the flexible fluid reservoir is biased by the spring as the spring contracts to produce fluid at a substantially constant fluid pressure at a fluid outlet; andwherein the housing is cylindrical shaped having a container top and a container bottom wherein the flexible ink reservoir and the spring roll together in a helical path originating from the container bottom toward the container top.