Method and device for preventing unintended use of print cartrid

Details Method and device for preventing unintended use of print cartrid Method and device for preventing unintended use of print cartrid

1993-05-03

1996-05-21

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 87, B41S 2175

Patent

active

055194222

ABSTRACT:
In a printer carriage adapted for holding multiple pen cartridges in separate compartments, each carriage compartment includes one or more key-coded barriers at an entrance to the compartment to provide a first level carriage lockout scheme against non-matching cartridge tabs. A second level carriage lockout is provided to differentiate between different families of print cartridges which successfully pass through the first level lockout, which second level is based on predetermined barrier floor configurations in the bottom of each carriage compartment which block non-matching wings on particular print cartridge families.

REFERENCES:
patent: 4712172 (1987-12-01), Kiyohara et al.
patent: 4774529 (1988-09-01), Paranjpe et al.
patent: 4907019 (1990-03-01), Stephens

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