Connecting device between ink supply source and ink jet head

Details Connecting device between ink supply source and ink jet head Connecting device between ink supply source and ink jet head

1996-09-24

1998-10-27

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 93, B41G 2175

Patent

active

058283951

ABSTRACT:
In a connecting device for connecting an ink supply source and an ink jet head, a connecting member 16 connected with an ink cartridge 7 is provided with a needle member 17, a first and second ink guide paths 19 and 20, which communicate with one another, a filter 21 is disposed at a slant with the direction A of ink flowing in the first ink guide path 19. The velocity and the negative pressure of ink flow flowing along a filter face 21A of the filter 21 increase as the ink flows downward, and the velocity and the negative pressure of ink flow at a filter face 21B are contrary thereto. By utilizing this property, air bubble K generated at an ink supply operation to the ink jet head H is allowed to rapidly move downward along the filter face 21A, passed through the filter 21, and led to a second ink guide path 20.

REFERENCES:
patent: 5457485 (1995-10-01), Moriyama et al.

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