Printer including temperature controlled LED recording heads

Details Printer including temperature controlled LED recording heads Printer including temperature controlled LED recording heads

1994-06-08

1998-05-12

Yockey, David F.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347118, 347232, 347238, 361699, 165 804, B41J 2385, B41J 2435, B41J 245, H05K 720

Patent

active

057513279

ABSTRACT:
An electrophotographic printer includes a plurality of recording heads connected in series in a closed cooling circuit. Each of the recording heads includes a linear array of light-emitting diodes (LEDs) on a common thermally conductive LED carrier bar. The carrier bar carries a series of modules, each module containing N LEDs with their associated drivers. The carrier bar is provided with a U-shaped duct inside a thermally conductive body which is in thermally conductive contact with the carrier bar. The duct extends between a fluid inlet and a fluid outlet and has a cooling fluid such as water flowing therethrough.

REFERENCES:
patent: 3141998 (1964-07-01), Silkman
patent: 4721996 (1988-01-01), Tustaniwskyj et al.
patent: 4821051 (1989-04-01), Hediger
patent: 5192958 (1993-03-01), Charnitski
patent: 5211493 (1993-05-01), Stephenson et al.
patent: 5285347 (1994-02-01), Fox et al.

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