Electrographic writing head

Details Electrographic writing head Electrographic writing head

1984-12-04

1986-05-13

Goldberg, E. A.

Recorders

Thermal recording

219216, G01D 1510, H05B 102

Patent

active

045889970

ABSTRACT:
An electrographic writing head capable of placing continuous marks upon a record medium in response to the application of a high voltage to selected writing styluses. The writing head includes a substrate upon which stylus electrodes, multiplexed driver circuitry and active devices are integrally fabricated by thin film deposition techniques. For each stylus, there is provided a high voltage thin film transistor and a latching circuit for holding the state of the high voltage transistor for substantially an entire line writing time.

REFERENCES:
patent: 4395146 (1983-07-01), Anai
patent: 4412227 (1983-10-01), Hamano
patent: 4472723 (1984-09-01), Shibata
patent: 4492482 (1985-01-01), Eguchi et al.

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