Ribbon indicia system

Details Ribbon indicia system Ribbon indicia system

1987-02-20

1989-01-10

Wiecking, David A.

Typewriting machines

Including interposed inking device for record-medium

Ribbon, per se

400225, B41J 3100

Patent

active

047970162

ABSTRACT:
A web, such as a ribbon in a printer, is provided with bar code markings arranged thereon to provide selected information, such as ribbon footage used and ribbon type. A printing fluid applied to the ribbon may be provided with particles having magnetic properties which are readable by a magnetic static read head wherein the presence of the magnetic printing fluid in the vicinity of magnetic gaps in such a head completes magnetic circuitry. Also, such printing fluid may be provided with fluorescent pigmentation, thereby affording optical sensing. In a printer embodiment, a mechanism is shown for synchronizing the output signals of the bar code sensors with a distance measuring device.

REFERENCES:
patent: 4496955 (1985-01-01), Maeyama et al.
patent: 4551729 (1985-11-01), Kubo et al.

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