Franking machine and method of identifying franking machine

Details Franking machine and method of identifying franking machine Franking machine and method of identifying franking machine

1996-01-25

1997-08-26

Hilten, John S.

Printing

Processes

Specific ink

101335, 400106, 400107, B41F 3100

Patent

active

056601115

ABSTRACT:
A method of identifying a franking machine used to print franking impressions is disclosed. Ink used by the franking machine contains a chemical tag unique to each franking machine, or to a group of franking machines, and the impression printed by the franking machine is sensed to determine the identity of the tag and hence to determine the identity of the franking machine used to print the impression.

REFERENCES:
patent: 3599229 (1971-08-01), Merrell
patent: 4739377 (1988-04-01), Allen
patent: 4864618 (1989-09-01), Wright
patent: 5408416 (1995-04-01), Gilham
patent: 5440979 (1995-08-01), Bonham et al.

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