Seal for inkjet orifices
View Patent ↗An absorbent material is employed as a seal over the printhead nozzles. The absorbent is uni-axial to prevent ink migration laterally, implemented by a lattice of absorbent matter surrounded by ink barriers. Such an absorbent can be sufficiently effective to limit ink migration that a simple tape may be used to bind the absorbent over the orifices of an inkjet cartridge in the manner of a common bandage. The barriers at a minimum a located to surround and keep separate inks of different colors.
1. An inkjet ink container holding ink having orifices for jetting said ink for printing comprising a seal held in contact with said orifices, said seal having extending from said orifices alternating regions of substantially uni-axial ink absorbent material separated by material which is a barrier to movement of said ink; wherein said seal is held against said orifices by a film layer tape attached by adhesive to a surface of said container.
2. The ink container comprising a seal as in claim 1 in which said seal covers all orifices for jetting said ink for printing and said barrier to movement of said ink is internal to said seal and also surrounds all said orifices covered by said seal.
3. The ink container comprising a seal as in claim 2 in which said barrier material surrounds orifices for jetting ink of a first color and surrounds orifices for jetting ink of a second color whereby said barrier material blocks mixing of colors in said seal.
4. The ink container of claim 3 in which said first color is one of magenta, cyan, and yellow and said second color is another of magenta, cyan, and yellow.
5. An inkjet ink container holding ink having orifices for jetting said ink for printing comprising a seal held in contact with said orifices by a film layer tape attached by adhesive to a surface of said container, said seal having extending from said orifices alternating regions of ink absorbent material separated by material which is a barrier to substantially lateral movement of said ink.
6. The ink container comprising a seal as in claim 5 in which said seal covers all orifices for jetting said ink for printing and said barrier to movement of said ink is internal to said seal and also surrounds all said orifices covered by said seal.
7. The ink container comprising a seal as in claim 6 in which said barrier material surrounds orifices for jetting ink of a first color and surrounds orifices for jetting ink of a second color whereby said barrier material blocks mixing of colors in said seal.
8. The ink container of claim 7 in which said first color is one of magenta, cyan, and yellow and said second color is another of magenta, cyan, and yellow.