Laser beam scanner in which the line scan time is maintained con

Details Laser beam scanner in which the line scan time is maintained con Laser beam scanner in which the line scan time is maintained con

1988-10-03

1991-01-01

Reynolds, Bruce A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

350 67, G01D 1514, B41J 247, G02B 2608

Patent

active

049822055

ABSTRACT:
In a laser scanning apparatus, having a plurality of potential surfaces reflecting on a rotational member, not all the potential reflecting surfaces are effective to deflect a laser beam to a recording medium for forming an image on the recording medium. The ineffective surfaces are incapable of making an image even if a laser beam impinges thereon. The rotational member has a shape similar to a polygon mirror, thereby maintaining stable balance without generating an air noise during rotation. Only when a laser beam impinges the effective surfaces disposed partially around the rotational member does the laser beam get deflected onto a recording medium for periodically scanning the surface of the recording medium and thereby forming an image.

REFERENCES:
patent: 3750189 (1973-07-01), Fleischer
patent: 3804485 (1974-04-01), Clarke
patent: 3818444 (1974-06-01), Connell
patent: 4583128 (1986-04-01), Anderson

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