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公开(公告)号：US12138937B2
公开(公告)日：2024-11-12
申请号：US17928276
申请日：2020-05-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daniel D Dowell , Ronald Ender , Seth Haddix , Jon A Crabtree , Jeffrey F Bell
Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.
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公开(公告)号：US20230202184A1
公开(公告)日：2023-06-29
申请号：US17928276
申请日：2020-05-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daniel D Dowell , Ronald Ender , Seth Haddix , Jon A Crabtree , Jeffrey F Bell
CPC classification number: B41J2/17563 , B41J2/1404 , B41J2/14145 , B41J2/19 , B41J2202/12
Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.
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公开(公告)号：US10350929B2
公开(公告)日：2019-07-16
申请号：US15760311
申请日：2016-01-21
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Yubai Bi , Alex Veis , Gregg A. Lane , Jon A Crabtree
Abstract: In one example, a process to solidify a water-based printing fluid printed on a substrate includes flushing nonvolatile solvent in the printing fluid into the substrate with the water in the printing fluid.
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