| 20110279588 | Refillable/Recyclable Ink Cartridge - The present invention relates to a refillable, recyclable ink cartridge having a rigid outer casing. The outer casing has a side wall section and first and second end caps. At least one ink compartment is defined between the side wall section and one or more interior walls. A plunger located in an end of each ink compartment remote from the ink outlet. The plunger is pushed through the ink towards the ink outlet by air pressure or other suitable biasing means. | 11-17-2011 |
