Endless ink ribbon cartridge with protected ribbon splice, and a

Details Endless ink ribbon cartridge with protected ribbon splice, and a Endless ink ribbon cartridge with protected ribbon splice, and a

1995-10-11

1997-02-11

Hilten, John S.

Typewriting machines

Including interposed inking device for record-medium

Means auxiliary to ribbon mechanism

400194, 400703, 324686, B41J 3300

Patent

active

056013744

ABSTRACT:
An endless ink ribbon cartridge with protected splice of the endless ribbon, wherein a reactance detector element housed in the cartridge at a location close to a predetermined travel path of the ink ribbon increases its reactance as a conductive strip disposed on the ribbon at a predetermined location relative to the splice moves close past the detector element, the reactance increase being detected by a protection arrangement external of the cartridge to prevent printing operations from being carried out through said splice.

REFERENCES:
patent: 4371116 (1983-02-01), Sage et al.
patent: 4939445 (1990-07-01), Meline et al.

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