公开(公告)号：US08746848B2

公开(公告)日：2014-06-10

申请号：US13772201

申请日：2013-02-20

Applicant: Xerox Corporation

Inventor： Andrew W Hays ,  Richard P Germain ,  Joseph A Degroot ,  Peter J Nystrom ,  Jun Ma

IPC: B41J2/04

CPC classification number: B41J2/04598 ,  B41J2/0458 ,  B41J2/04596 ,  B41J2/14056 ,  B41J2/14064

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.

Abstract translation: 公开了从喷墨打印机喷射墨滴的系统和方法。 系统和方法可以包括具有一个或多个具有相关联的喷嘴和膜的致动器的打印头。 可以向致动器施加电压波形，以一定量的墨水填充致动器，并且通过墨滴将墨水喷射通过喷嘴。 电压波形可以具有相关联的预充电电压以用墨水填充致动器和用于喷射墨水的点火电压。 致动器膜可以具有多个高度的凹坑，以保护膜不接触电极并减少电场。

公开(公告)号：US10442174B2

公开(公告)日：2019-10-15

申请号：US14962132

申请日：2015-12-08

Applicant: XEROX CORPORATION

Inventor： Peter J Nystrom ,  Barry P Mandel ,  David A Mantell

IPC: B33Y10/00 ,  B33Y30/00 ,  B29C64/112 ,  B29C64/20

Abstract: A 3D printer including a pin actuated printhead having an orifice through which a material is ejected, a material chamber to hold the material to be ejected, a channel connecting the material chamber to the orifice, a pin chamber, and an actuated pin within the pin chamber, wherein the actuated pin extends through the pin chamber to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature. The 3D printer further includes a material delivery system having a filament driver and a filament heater.

公开(公告)号：US08828750B2

公开(公告)日：2014-09-09

申请号：US13875262

申请日：2013-05-01

Applicant: Xerox Corporation

Inventor： Peter J Nystrom ,  Peter M Gulvin ,  Paul W Browne

IPC: H01L21/00 ,  B41J2/135

CPC classification number: B41J2/14314 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1639

Abstract: A method of fabricating a MEMS inkjet type print head and the resulting device is disclosed. The method includes providing a driver component and separately providing an actuatable membrane component, the actuatable membrane component being formed in the absence of an acid etch removing a sacrificial layer. The separately provided actuatable membrane component is bonded to the driver component and a nozzle plate is attached to the actuatable membrane component subsequent to the bonding. Separately fabricating the components removes the need for hydrofluoric acid etch removal of a sacrifical layer previously required for forming the actuatable membrane with respect to the driver component.

Abstract translation: 公开了制造MEMS喷墨型打印头的方法和所得到的装置。 该方法包括提供驱动器部件并且单独地提供可致动的膜部件，可致动的膜部件在不存在去除牺牲层的酸蚀刻的情况下形成。 单独提供的致动膜部件被结合到驱动器部件，并且在接合之后将喷嘴板附接到可致动膜部件。 单独制造组件不需要氢氟酸蚀刻去除先前为相对于驱动器部件形成可致动膜的牺牲层。