Ink jet recording apparatus and ink supply member therefor

Details Ink jet recording apparatus and ink supply member therefor Ink jet recording apparatus and ink supply member therefor

1997-03-14

1999-10-05

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 219

Patent

active

059632399

ABSTRACT:
An ink jet recording apparatus and printer whereby air bubbles in the ink supply path are easily expelled even where a stagnation point or flow boundary is formed within the ink jet recording apparatus in which air bubbles tend to collect inside the ink supply path. Even when the air bubbles are not completely expelled, occlusion of the ink supply path by an air bubble is also prevented. In particular, the ink jet recording apparatus includes a capillary member which defines plural capillary paths disposed within the ink supply path upstream of the stagnation point or flow boundary occurring at the connection of the recording head to ink supply tube. These capillary paths are separated a distance away from the flow boundary and included angled walls and cross sections to enable fractionation of larger, potentially ink occluding bubbles.

REFERENCES:
patent: 4301459 (1981-11-01), Isayama et al.
patent: 4537680 (1985-08-01), Barth
patent: 4593296 (1986-06-01), Dagna
patent: 4967209 (1990-10-01), Hasegawa et al.
patent: 5457485 (1995-10-01), Moriyama et al.

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