Method for calibration of a laser thermal halftone printer

Details Method for calibration of a laser thermal halftone printer Method for calibration of a laser thermal halftone printer

2006-02-21

2006-02-21

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S251000

Reexamination Certificate

active

07002614

ABSTRACT:
A method of calibrating a printing system is described herein. The method includes imaging a test pattern. The test pattern includes a set of densities. Each density is based on a plurality of exposures which have been randomized thereby forming an imaged test pattern. The method further includes scanning the densities of the imaged test pattern thereby forming a dataset. In one embodiment, the density of the test pattern is made from a thermal dye donor. In another embodiment, the density of the test pattern comprises multiple colors. Then, the method includes analyzing the dataset to identify outlier data. The method then includes calibrating an adjustable density printing system using the polynomial calibration curve.

REFERENCES:
patent: 5268708 (1993-12-01), Harshbarger et al.
patent: 5428371 (1995-06-01), Fox et al.
patent: 5461462 (1995-10-01), Nakane et al.
patent: 5966506 (1999-10-01), Morton

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