METHODS AND APPARATUS FOR INKJET PRINTING ON NON-PLANAR SUBSTRATES
First Claim
Patent Images
1. An apparatus comprising:
- at least one print head adapted to deposit ink on a top surface of a substrate, wherein the substrate is in motion relative to the print head;
at least one sensor adapted to detect a distance of the at least one sensor from the top surface of the substrate; and
a controller adapted to determine a substrate to nozzle distance based on the distance of the sensor to the top surface of the substrate and adjust a print parameter based on the substrate to nozzle distance.
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Abstract
A sensor apparatus for an inkjet printing device is provided. The sensor apparatus may include 1) at least one print head adapted to deposit ink on a top surface of a substrate, wherein the substrate is in motion relative to the print head, 2) at least one sensor adapted to detect the distance of the at least one sensor from the top surface of the substrate, and 3) a controller adapted to determine the substrate to nozzle distance based on the distance of the sensor to the top surface of the substrate, and adjust the trajectory of the ink being deposited on the substrate based on the substrate to nozzle distance. Numerous other aspects are provided.
154 Citations
25 Claims
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1. An apparatus comprising:
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at least one print head adapted to deposit ink on a top surface of a substrate, wherein the substrate is in motion relative to the print head;
at least one sensor adapted to detect a distance of the at least one sensor from the top surface of the substrate; and
a controller adapted to determine a substrate to nozzle distance based on the distance of the sensor to the top surface of the substrate and adjust a print parameter based on the substrate to nozzle distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of inkjet printing comprising:
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sensing a distance from a sensor to a substrate;
determining a distance from one or more inkjet print heads to the substrate based on the sensed distance from the sensor to the substrate; and
,adjusting a print parameter based on the determined distance from the one or more inkjet print heads to the substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for inkjet printing comprising:
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a print bridge;
at least one print head coupled to the print bridge and adapted to deposit ink on a top surface of a substrate;
a stage positioned beneath the print bridge and the at least one print head and adapted to move the substrate relative to the at least one print head;
at least one sensor coupled to the print bridge and adapted to detect a distance of the at least one sensor from the top surface of the substrate; and
a controller adapted to determine a substrate to nozzle distance based on the distance of the sensor to the top surface of the substrate and adjust a print parameter based on the substrate to nozzle distance. - View Dependent Claims (24, 25)
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Specification