Ink cartridge

Details Ink cartridge Ink cartridge

1998-03-16

2000-03-14

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

060363061

ABSTRACT:
The position of the ink supply port 4b formed in the front wall 4k of the cartridge case 4, through which ink is supplied to the ink jet recording head 5, is determined to be higher than the position of the through hole 4h for connecting the ink storing chamber 4e and the accommodating chamber 4g accommodating the porous member 4f, thereby producing a height difference between the two positions. The ink flow passage R formed in the ink in the ink storing chamber 4e between the through hole 4h and the ink supply port 4b includes two curve parts R2 and R4. The air bubbles remaining in the ink flowing along the ink flow passage R are released from the ink at the curve parts R2 and R4 is respectively and gather into air bubbles B that are masses of small air bubbles, which are accumulated in the air accumulating space 14 formed at un upper portion of the ink storing chamber 4e.

REFERENCES:
patent: 5489932 (1996-02-01), Ceschin et al.
patent: 5821965 (1998-10-01), Oda et al.

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