Ink tank and ink-jet recording apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorMasahito Katada
Life of this patent
Estimating the term…
Abstract
An ink cartridge for supplying an ink to an ink jet type recording head is made of a paper box formed with an ink chamber. Inner wall surfaces of the ink chamber are processed to have water-repellency. The ink chamber is partitioned into a storage chamber storing the ink and an ink absorbent chamber containing an ink absorbent made of unwoven fabric. An ink outlet is formed in a bottom wall of the ink chamber. The ink outlet may be formed as a thin wall part with no water-repellency, so the ink percolates through the thin wall part. An ink run-out detection window is formed in the storage chamber. The ink run-out detection window may be a thin wall part or consist of an opening and a translucent paper sheet covering the opening.
Claims16
An ink tank for supplying an ink to an ink jet type recording head, comprising:
- a paper box formed with an ink chamber for containing the ink, an ink outlet through which the ink is supplied from said ink chamber to said recording head, and an air inlet through which air is introduced into said ink chamber;
- and
- an ink absorbent contained in said ink chamber, said ink absorbent absorbing and holding the ink by a capillary force, thereby to generate a negative pressure in said ink chamber.
An ink-jet recording apparatus that records an image by use of an ink jet type recording head, wherein said ink-jet recording apparatus uses an ink tank comprising a paper box formed with an ink chamber for containing the ink, an ink outlet through which the ink is supplied from said ink chamber to said recording head, and an air inlet through which air is introduced into said ink chamber;
- and an ink absorbent contained in said ink chamber, said ink absorbent absorbing and holding the ink by a capillary force, thereby to generate a negative pressure in said ink chamber.
Dependencies are inferred from the claim text.