The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2013
Filed:
Jun. 23, 2009
Andrew W. Hays, Fairport, NY (US);
Richard P. Germain, Webster, NY (US);
Joseph A. Degroot, Webster, NY (US);
Peter J. Nystrom, Webster, NY (US);
Jun MA, Penfield, NY (US);
Andrew W. Hays, Fairport, NY (US);
Richard P. Germain, Webster, NY (US);
Joseph A. Degroot, Webster, NY (US);
Peter J. Nystrom, Webster, NY (US);
Jun Ma, Penfield, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Systems and methods of ejecting ink drops from an inkjet printer are disclosed. The systems and methods can include a printhead with one or more actuators with associated nozzles and membranes. A voltage waveform can be applied to the actuators to fill the actuators with a volume of ink and eject the ink through the nozzles as ink drops. The voltage waveform can have associated pre-fill voltage to fill the actuator with ink and a firing voltage to eject the ink. The actuator membranes can have multi-height dimples to protect the membranes from contacting electrodes and reduce the electric field.