Device for preventing re-use of a container for supplying ink

Details Device for preventing re-use of a container for supplying ink Device for preventing re-use of a container for supplying ink

1997-04-07

1999-07-27

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

059298847

ABSTRACT:
A device for preventing re-use of a container for supplying ink to an ink printing head has high functional security, only allows the use of new fresh ink containers prescribed by the printer manufacturer and suppresses the use of fresh ink containers that have already been in operation and were then refilled. An ink connecting line from the ink printing head to the fresh ink container is docked in a known manner through the use of a hollow needle that is passed through a rubber-elastic closure. Two electrodes in the bottom of the fresh ink container are also part of an ink exhaustion detector in a known manner. A cover device for at least one electrode can be tripped irreversibly through the use of the hollow needle the first time it is inserted.

REFERENCES:
patent: 5027872 (1991-07-01), Taylor
patent: 5283593 (1994-02-01), Wehl
patent: 5425478 (1995-06-01), Kotaki

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