Printer having identifiable interchangeable heads

Details Printer having identifiable interchangeable heads Printer having identifiable interchangeable heads

1989-12-29

1991-09-17

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 75, 346 76PH, B41J 232, B41J 2015

Patent

active

050499041

ABSTRACT:
A printer devised so as to function both as a thermal printer and as an ink-jet printer. The printer having a thermal printing head cartridge, an ink-jet printing head cartridge, a cartridge holder, an electronic circuit and a sensor for identifying a printing head cartridge in use. If one of the above two kinds of printing head cartridges is optionally selected and mounted on the cartridge holder, the sensor outputs a signal of identifying which one of the printing head cartridges is mounted. Receiving the signal, the electronic circuit supplies to a printing head cartridge mounted on the cartridge holder pulse currents suitable for the specific resistors installed in the printing head cartridge for making the same function as a printing head.

REFERENCES:
patent: 4396923 (1983-08-01), Noda
patent: 4554559 (1985-11-01), Heath
patent: 4803500 (1989-02-01), Milbrandt
patent: 4872027 (1989-10-01), Buskirk et al.

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