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US 2022/0146972 A1Published application
Color calibration
AssigneeHewlett-Packard Development Company, L.P.
InventorsYoav Landau, Ran Waidman, Nir Guttman
Life of this patent
Estimating the term…
Abstract
An example of printing calibration includes printing a calibration page having test patches, the test patches developed at a plurality of voltages of a binary ink developer. The test patches are measured to determine an indication of ink thickness of the patches and a calibration voltage is generated based on the indications of the ink thickness of the test patches.
Claims15
A method comprising:
- printing a calibration page comprising test patches the test patches developed at a plurality of voltages of a binary ink developer;
- measuring an indication of an ink thickness of the test patches;
- and
- generating a calibration voltage based on the indications of the ink thickness of the test patches.
1 more element
A printing system comprising:
- a photo image plate to apply ink to a transfer blanket;
- a plurality of binary ink developers to apply ink to the photo image plate;
- an electric field generator to generate an electric field between the binary ink developer and the photo image plate;
- and
- a controller to:
- set the electric field at a first voltage to print a first test patch to a calibration page;
- set the electric field to a second voltage to print a second test patch to the calibration page;
- receive a first indication of a first ink thickness of the first test patch and a second indication of a second ink thickness of the second test patch;
- and
- determine, based on the first indication and the second indication, a calibration voltage for the electric field generator.
7 more elements
A printing system comprising:
- an electric field generator to generate an electric field between a binary ink developer and a photo image plate, and
- a controller to:
- vary a voltage of the electric field to print a plurality of test patches on a single calibration page;
- receive an indication of ink thickness for the plurality of test patches;
- and
- interpolat a calibration voltage for the electric field based on the received indications.
3 more elements
Dependencies are inferred from the claim text.