Calibration of a multilevel inkjet process

Incremental printing of symbolic information – Ink jet – Controller

Reexamination Certificate

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C347S019000

Reexamination Certificate

active

07128382

ABSTRACT:
A multilevel printing process can be calibrated by: measuring a small number of recorded patches obtaining data points characterising the printing process, modeling a gradation of the printing process with a model curve incorporating different gradation behaviour of the printing process in different regimes based upon the obtained data points, and using the model curve to obtain a gradation-correction curve for calibrating the printing process, where it is sufficient to use only patches obtained by filling every pixel in a patch with a same recording level.

REFERENCES:
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patent: 5276459 (1994-01-01), Danzuka et al.
patent: 6390583 (2002-05-01), Kato et al.
patent: 2001/0035889 (2001-11-01), Mikami
patent: 2002/0021321 (2002-02-01), Nakajima et al.
patent: 2004/0141193 (2004-07-01), Mestha
patent: 02 10 2316 (2002-11-01), None

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