Invention Grant
- Patent Title: Actuator deprime for bubble control for ink jet printhead
- Patent Title (中): 用于喷墨打印头的气泡控制的致动器损坏
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Application No.: US13314520Application Date: 2011-12-08
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Publication No.: US08801164B2Publication Date: 2014-08-12
- Inventor: Andrew W Hays , Antonio L Williams
- Applicant: Andrew W Hays , Antonio L Williams
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: MH2 Technology Law Group LLP
- Main IPC: B41J2/19
- IPC: B41J2/19 ; B41J2/175

Abstract:
A method and structure for depriming an ink jet printhead. To deprime ink from a printhead at a location between a nozzle (aperture) and a particulate filter (rock screen), a force (pressure) is applied to the ink. The pressure can either be a positive pressure applied to the nozzle from the outside of the aperture plate or a negative pressure (vacuum) applied at a location upstream from the particulate filter. Because openings within the particulate filter are each smaller than the nozzle, there exists a force which is sufficient to move a meniscus of the ink from the nozzle back to the particulate filter, but which is insufficient to move the meniscus beyond the particulate filter, for example due to a surface tension of the meniscus of the ink.
Public/Granted literature
- US20130147879A1 ACTUATOR DEPRIME FOR BUBBLE CONTROL FOR INK JET PRINTHEAD Public/Granted day:2013-06-13
Information query
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