System and method for adjusting ink jet uniformity based on...

Details System and method for adjusting ink jet uniformity based on... System and method for adjusting ink jet uniformity based on...

2007-07-31

2009-10-06

Nguyen, Lamson D (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07597418

ABSTRACT:
A method for processing input document data uses a drop mass history for ink jets in a print head to adjust other document data processing. The method includes ejecting ink in a plurality of patterns onto an image substrate from a plurality of ink jets, each drop in a pattern corresponding to one drop mass history in a plurality of drop mass histories, identifying a relationship between drop masses for the drops in an ejected pattern and a reflectance parameter for the ejected pattern, measuring a reflectance value for each pattern ejected onto the image substrate, and identifying a drop mass value for each drop mass history in the plurality of drop mass histories, each drop mass value being identified from the measured reflectance value for each pattern and the identified relationships between the drop masses and the reflectance parameter for each pattern.

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