US Patent No. 10,377,161

OVERCOAT PRINTING AND SERVICING


Patent No. 10,377,161
Issue Date August 13, 2019
Title Overcoat Printing And Servicing
Inventorship Alex Veis, Kadima (IL)
Ron Tuttnauer, Netanya (IL)
Assignee HP SCITEX LTD., Netanya (IL)

Claim of US Patent No. 10,377,161

1. An apparatus comprising:a depositing mechanism to perform an overcoat depositing operation, the depositing mechanism comprising a plurality of print head arrays each being arrangeable in a deposit position to deposit an overcoat layer onto a substrate and a service position to enable servicing to be performed; and
an array controller to cause a first print head array of the plurality of print head arrays to be moved periodically from the deposit position to the service position according to a predefined servicing sequence during an ongoing overcoat depositing operation performed by the depositing mechanism;
wherein the array controller moves the first print head array from the deposit position to the service position based on a predefined service interval over which the first print head array is able to deposit an overcoat fluid to form the overcoat layer without clogging occurring; and
wherein the predefined servicing sequence has the first print head array active at the deposit position for twice as long a period of time as the first print head is being serviced at the service position.