Invention Grant
- Patent Title: System and method for efficiently purging printheads
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Application No.: US16897941Application Date: 2020-06-10
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Publication No.: US11383525B2Publication Date: 2022-07-12
- Inventor: Seemit Praharaj , Paul J. McConville , Jason M. LeFevre , Michael J. Levy , Thomas J. Wyble
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Maginot Moore Beck LLP
- Main IPC: B41J2/175
- IPC: B41J2/175 ; B41J2/165

Abstract:
A purge cycle is performed with an ink delivery system of an inkjet printer by applying a pressure pulse to a printhead in the printer that is substantially shorter than pressure pulses previously used. A pressure at a predetermined threshold is generated behind a valve and then release to the printhead. The duration of the pressure application is in a range of about 150 milliseconds to about 250 milliseconds. This pressure pulse substantially reduces the amount of ink emitted during the purge. A bidirectional wipe of the printhead face is effective for restoring inkjets in the printhead even though the amount of emitted ink is substantially reduced.
Public/Granted literature
- US20210387459A1 System And Method For Efficiently Purging Printheads Public/Granted day:2021-12-16
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