Jitter reduction in an overfilled raster output polygon scanner

Details Jitter reduction in an overfilled raster output polygon scanner Jitter reduction in an overfilled raster output polygon scanner

1993-11-09

1996-07-23

Reinhart, Mark J.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347259, B41J 247

Patent

active

055394418

ABSTRACT:
In an overfilled polygon ROS architecture, fast scan jitter is reduced by uniformly illuminating the overfilled facets. In one embodiment, the collimator lens is designed with a long focal length to transmit only the more uniform central portion of the Gaussian shaped intensity profile output of a laser diode. In another embodiment, the light level at the polygon facet is made uniform by introducing a variable transmission filter along the optical path.

REFERENCES:
patent: 4429218 (1984-01-01), Thomas
patent: 4620237 (1986-10-01), Traino et al.
patent: 4872065 (1989-10-01), Isono et al.
patent: 4941721 (1990-07-01), Banton et al.
patent: 5061046 (1991-10-01), Lee et al.
patent: 5223857 (1993-06-01), Loce et al.
patent: 5331468 (1994-07-01), Noethen

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