Liquid discharge recording head, liquid discharge recording...

Details Liquid discharge recording head, liquid discharge recording... Liquid discharge recording head, liquid discharge recording...

2005-04-19

2005-04-19

Nguyen, Lamson (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

06880925

ABSTRACT:
In the liquid discharge recording head provided with a stopper member formed of an elastic member to be penetrated by a hollow needle member for liquid supply into a liquid preserving chamber in the recording head, the invention enables smooth insertion of the front end of the needle member into the stopper member without insertion failure. The liquid discharge recording head is provided with a head chip having a nozzle for discharging liquid, and a frame member connected thereto and having a liquid chamber for containing the liquid to be supplied thereto. A hole portion is formed in a portion of the frame member, and joint rubber is pressed into such hole portion. In the joint rubber, there is formed in advance a fissure hole, to be penetrated by a hollow needle provided in the main body of the liquid discharge recording apparatus and having fissures in not less than three directions from the crossing center of the fissures, in a plane perpendicular to the direction of depth of the hole portion.

REFERENCES:
patent: 4757331 (1988-07-01), Mizusawa
patent: 5953031 (1999-09-01), Omata et al.
patent: 6074049 (2000-06-01), Machler
patent: 6132036 (2000-10-01), Abe
patent: 6305790 (2001-10-01), Kawamura et al.

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