Patent · US Expired

Optical character generator for an electrographic printer

US5874984A · kind A · utility

3Cited by

1References

10Claims

0Family size

Assignee

Oce Printing Systems GmbH · DE

Inventors

Christian Scholz · Neustadt an der Weinstraße, DE
Manfred Wiedemer · Ismaning, DE

Key dates

Filing date	Aug 2, 1995
Grant date	Feb 23, 1999
Priority date	—
Expiry date	Aug 2, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH10H29/142
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An optical character generator for an electrographic printer has a plurality of monolithic circuits (11) which are arranged on a carrier (10) and have LEDs (12) which are integrated in the circuits and can be driven individually. The monolithic circuits (11) include a monolithically integrated photodiode drive combination, in the case of which both the associated LEDs (12) and the drive circuit (13), possibly including a BUS circuit (14) for the LEDs (12), are integrated in a monolithic circuit (11). The monolithic circuits are constructed using thin-film technology from III-V semiconductor material, preferably GaAs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.