Ink jet recording unit

Details Ink jet recording unit Ink jet recording unit

1996-09-25

2000-03-21

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

060394412

ABSTRACT:
An elastic jointing member 22 with an umbrella-like portion with an opening and a flat part is provided in a jointing portion between a recording head 21 and an ink tank 1. When the ink tank 1 is attached to the recording head 21, the umbrella-like portion of the elastic jointing member 22 is pressed against the ink tank and elastically deformed inward. As a result, an ink passage is formed which is airtightly sealed. In the process of pressing the umbrella-like portion against the ink tank, the umbrella-like portion comes in contact with the flat part, to thereby prevent air from staying in the ink passage. Protrusions or grooves may be provided between the umbrella-like portion and the flat part. With the protrusions or the groove, the umbrella-like portion is not glued to the flat part.

REFERENCES:
patent: 4757331 (1988-07-01), Mizusawa
patent: 5359357 (1994-10-01), Takagi et al.
patent: 5540450 (1996-07-01), Hayashi et al.
patent: 5583549 (1996-12-01), Ujita et al.

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