Thermal ink jet printhead having a switched stand-by mode

Details Thermal ink jet printhead having a switched stand-by mode Thermal ink jet printhead having a switched stand-by mode

1993-05-04

1994-12-06

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Controller

347 57, G01D 1516

Patent

active

053715306

ABSTRACT:
A thermal ink jet printhead includes a switched power supply for the intermediate voltage predriver sections. The power supply is switched by a MOSFET connected between an intermediate point of a voltage divider and ground. By switching the power supply, the predriver sections are turned off, unnecessary power consumption and overheating the printhead are avoided.

REFERENCES:
patent: 4250512 (1981-02-01), Kattner et al.
patent: 4835549 (1989-05-01), Samejima et al.
patent: 5036337 (1991-07-01), Rezanka

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