| 主权项 |
1. A printing system comprising:
a print carriage having opposing sides, wherein the print carriage is configured to traverse forwards and backwards with respect to a substrate, wherein the print carriage includes
a curing station positioned at one of the opposing sides of the print carriage, wherein the curing station includes an ultraviolet light source, a nitrogen applicator, and an oxygen applicator; anda printing block positioned between the curing station and the other of the opposing sides of the print carriage, wherein the printing block includes a plurality of print heads that are configured to deposit ultraviolet curable ink onto the substrate; wherein the ultraviolet light source is configured to illuminate and cure an application of the deposited ultraviolet curable ink on the substrate; wherein the nitrogen applicator is configured to emit a blanket of nitrogen gas onto the substrate as the print carriage traverses forwards and backwards with respect to the substrate, wherein the nitrogen applicator is positioned such that the blanket of nitrogen gas is applied after the application of ultraviolet curable ink onto the substrate, before the ultraviolet light source traverses over the applied ultraviolet curable ink, and before the application of ultraviolet curable ink is illuminated with ultraviolet light from the ultraviolet light source, wherein gases proximate to the substrate are supplanted by the blanket of nitrogen gas, and wherein the blanket of nitrogen is delivered onto the substrate in a trailing fashion toward the ultraviolet light source; and wherein the oxygen applicator is configured to emit a blanket of oxygen gas onto the substrate as the print carriage traverses forwards and backwards with respect to the substrate, wherein the oxygen applicator is positioned such that the blanket of oxygen gas is applied before the printing block traverses over the substrate for the application of ultraviolet curable ink onto the substrate, wherein the blanket of nitrogen and other gases proximate to the substrate are supplanted by the blanket of oxygen gas, and wherein the blanket of oxygen gas is delivered onto the substrate in a trailing fashion toward the printing block; and a nitrogen generator configured to
generate substantially-pure oxygen and substantially-pure nitrogen,deliver the substantially-pure oxygen to the oxygen applicator, anddeliver the substantially-pure nitrogen to the nitrogen applicator; and a controller coupled with the nitrogen generator, wherein the controller is configured to
activate or deactivate flow of the substantially-pure nitrogen, andactivate or deactivate flow of the substantially-pure oxygen. |
