Ink cartridge having an atmosphere communicating channel of laby

Details Ink cartridge having an atmosphere communicating channel of laby Ink cartridge having an atmosphere communicating channel of laby

1996-12-04

1999-11-30

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

059929880

ABSTRACT:
An ink cartridge for use in an ink jet printer includes a cartridge body and a lid. The cartridge body has an ink reservoir storing ink therein, arid is in a box-shape having one open surface. The lid is fixedly secured to the open surface of the cartridge body to hermetically seal the opern surface. The cartridge body is provided with a secondary housing formed with a hole open to atmosphere. In the secondary housing, inner walls are formed which define a communication channel of a labyrinthine structure for making a fluid communication between the ink reservoir and an outside atmosphere through the hole. The provision of such a communication channel smoothens the supply of ink to a print head but the labyrinthine structure prevents the ink evaporation.

REFERENCES:
patent: 5629728 (1997-05-01), Karita et al.
patent: 5790158 (1998-08-01), Shinada et al.

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