Adjustment of dot size for laser imagers

Details Adjustment of dot size for laser imagers Adjustment of dot size for laser imagers

1995-11-27

1998-10-06

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

358298, 347254, B41J 247

Patent

active

058185046

ABSTRACT:
Compensation for pixel aberrations in a laser printer is accomplished by altering pixels in accordance with pixel location. A projection of a scan line is skewed with respect to a line normal to the surface of an optical photoreceptor (OPR), which results in a change in the shape of projected pixels. Selected pixels are augmented in order to adjust their shape. The additional optical energy may be applied at the sub-pixel level so that a threshold of energy depletion on an optical photoreceptor (OPR) is not reached where image development would occur. Alternatively, the additional energy may be applied in a manner which provides additional development to simulate a pixel having a desired width across a scan line. The invention allows a scan line to be produced in which pixels across the scan line are made more uniform.

REFERENCES:
patent: 4768043 (1988-08-01), Saito et al.
patent: 5282051 (1994-01-01), Walter
patent: 5450208 (1995-09-01), Murata

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