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AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Haruta, Masami Ikeda, Seiichiro Karita, Nobuyuki Kuwabara, Takahisa Kawamura, Masahiko Higuma, Teruo Arashima, Tsutomu Abe, Osamu Nishiwaki, Shinichi Tochihara, Akira Nagashima, Makoto Aoki, Kumiko Mafune
Estimating the term…
An ink tank having an ink storing portion encases an ink-absorbent member for holding ink. The ink-absorbent member comprises a porous material having therein compressed open cells. The compression ratio r.sub.1 of an apparent volume V.sub.1 before compression to an apparent volume V.sub.2 after compression (r.sub.1 =V.sub.1 /V.sub.2) and the cell number p represented by number of cells per inch in the state of V.sub.1 satisfy the relation (I) below, and p being not more than 60. 100 [inch.sup.-1 ].ltoreq.r.sub.1 .multidot.p.ltoreq.200 [inch.sup.-1 ](I)
An ink tank having an ink storing portion encasing an ink-absorbent member for holding ink, the ink-absorbent member comprising a porous material having therein compressed open cells, the compression ratio r.sub.1 of an apparent volume V.sub.1 before compression to an apparent volume V.sub.2 after compression (r.sub.1 =V.sub.1 /V.sub.2) and the cell number p represented by number of cells per inch in the state of V.sub.1 satisfying the relation (I) below, and p being not more than 60:
An ink-jet cartridge having an ink storing portion encasing an ink absorbent member for holding ink, the ink-absorbent member comprising a porous material having therein open cells, the volume ratio K of an apparent volume V.sub.5 of the porous material in a dried and no-ink-containing state outside of the ink storing portion to an apparent volume V.sub.6 of the porous material in an ink-impregnated state encased in the ink storing portion (K=V.sub.5 /V.sub.6) and the cell number p represented by number of cells per inch in the state of V.sub.1 satisfying the relation (I) below, and p being not more than 60:
An ink-jet cartridge having an ejection energy-generating means for ejecting ink and an ink storing portion encasing an ink-absorbent member for holding ink to be supplied to the ejection energy-generating means, the ink-absorbent member comprising a porous material having therein compressed open cells, the compression ratio r.sub.1 of an apparent volume V.sub.1 before compression to an apparent volume V.sub.2 after compression (r.sub.1 =V.sub.1 /V.sub.2) and the cell number p represented by number of cells per inch in the state of V.sub.1 satisfying the relation (I) below, and p being not more than 60:
An ink-jet cartridge having an ejection energy-generating means for ejecting ink and an ink storing portion encasing an ink-absorbent member for holding ink to be supplied to the ejection energy-generating means, the ink-absorbent member comprising a porous material having therein open cells, the volume ratio K of an apparent volume V.sub.5 of the porous material in a dried and no-ink-containing state outside the ink storing portion to an apparent volume V.sub.6 of the porous material in an ink-impregnated state encased in the ink storing portion (K=V.sub.5 /V.sub.6) and the cell number p represented by number of cells per inch in the state of V.sub.1 satisfying the relation (I) below, and p being not more than 60:
An ink-jet cartridge provided with an ink-storing portion having separately an air-communicating opening and an ink-discharging portion for supplying ink outside and encasing an ink-absorbent member therein, an ejection energy-generating means for ejecting ink, an ink chamber for holding ink to be supplied to the ejection energy-generating means, a supply tube for supplying ink pressed into an ink-absorbent member in the ink-storing portion, and a filter at an end of the supply tube;
The ink-jet cartridge provided with an ink-storing portion having separately an air-communicating opening and an ink-discharging portion for supplying ink outside and encasing an ink-absorbent member therein, an ejection energy-generating means for ejecting ink, an ink chamber for holding ink to be supplied to the ejection energy-generating means, and a supply tube for supplying ink pressed into an ink-absorbent member in the ink-storing portion, and a filter at an end of the supply tube;
An ink-jet recording apparatus provided with an ink cartridge having an ejection energy-generating means for ejecting ink and an ink storing portion encasing an ink-absorbent member for holding ink to be supplied to the ejection energy-generating means, a carriage for moving the ink-jet cartridge to a desired direction, and an electric signal supplying means for supplying an electric signal to the ejection energy-generating means;
An ink-jet recording apparatus provided with an ink cartridge having an ejection energy-generating means for ejecting ink and an ink storing portion encasing an ink-absorbent member for holding ink to be supplied to the ejection energy-generating means, a carriage for moving the ink-jet cartridge to a desired direction, and an electric signal supplying means for supplying an electric signal to the ejection energy-generating means;
The ink-jet recording apparatus provided with an ink cartridge having an ink-storing portion having separately an air-communicating opening and an ink-discharging portion for supplying ink outside and encasing an ink-absorbent member therein, an ejection energy-generating means for ejecting ink, an ink chamber for holding ink to be supplied to the ejection energy-generating means, a supply tube for supplying ink pressed into an ink-absorbent member in the ink-storing portion, and a filter at an end of the supply tube;
The ink-jet recording apparatus provided with an ink cartridge having an ink-storing portion having separately an air-communicating opening and an ink-discharging portion for supplying ink outside and encasing an ink-absorbent member therein, an ejection energy-generating means for ejecting ink, an ink chamber for holding ink to be supplied to the ejection energy-generating means, and a supply tube for supplying ink pressed into an ink-absorbent member in the ink-storing portion;
Dependencies are inferred from the claim text.