Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1995-11-07
1998-08-11
Reinhart, Mark J.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347134, B41J 247
Patent
active
057934088
ABSTRACT:
An optical scanning apparatus which includes a housing, an optical source which emits an optical beam, a deflector which deflects an optical beam from the optical source, a focusing lens which focuses the optical beam from the deflector, and plural mirrors which reflect the optical beam from the deflector. The plural mirrors include a first mirror which reflects the optical beam from the deflector, a third mirror which reflects the optical beam from the first mirror, and a second mirror which reflects the optical beam from the third mirror. The optical beam is focused upon a photoconductive element by the focusing lens through the plural mirrors on a scanning surface, and at least one of the first mirror and the third mirror is pivotally supported to be adjusted in a sub-scanning direction. Further, the second mirror is slidably supported to be adjusted in a direction normal to a reflecting surface of the second mirror. The arrangement provides an advantageous structure by which a focus position is easily adjusted.
REFERENCES:
patent: 4869582 (1989-09-01), Nakajima et al.
patent: 5018806 (1991-05-01), Nakajima
patent: 5019837 (1991-05-01), Schwarz
patent: 5063409 (1991-11-01), Nakajima
patent: 5543829 (1996-08-01), Fisli
patent: 5638189 (1997-06-01), Yanagisawa
Reinhart Mark J.
Ricoh & Company, Ltd.
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