公开(公告)号：EP2084008A1

公开(公告)日：2009-08-05

申请号：EP06790346.8

申请日：2006-10-09

申请人： Silverbrook Research Pty. Ltd

发明人： NORTH, Angus John ,  FISHBURN, Jennifer Mia ,  MYERS, Samuel James ,  SILVERBROOK, Kia

IPC分类号： B41J2/05

CPC分类号： B41J2/04588 ,  B41J2/04541 ,  B41J2/0458

摘要： An inkjet printhead with an array of nozzles (26) and corresponding heaters (10) configured for heating printing fluid (20) to nucleate a vapor bubble (12) that ejects a drop (24) of the printing fluid through the nozzle. Drive circuitry (22) generates an electrical drive pulse to energize the heaters (10) and is configured to adjust the drive pulse power to vary the vapor bubble nucleation time. By varying the power of the pulse used to generate the bubble, the printhead can operate with small, efficiently generated bubbles during normal printing, or it can briefly operate with large high energy bubbles if it needs to recover decapped nozzles.

公开(公告)号：EP2074054A1

公开(公告)日：2009-07-01

申请号：EP06790347.6

申请日：2006-10-09

申请人： Silverbrook Research Pty. Ltd

发明人： NORTH, Angus John ,  MYERS, Samuel James ,  SILVERBROOK, Kia

IPC分类号： B81B7/02 ,  B41J2/05

CPC分类号： B41J2/04598 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/1412

摘要： A MEMS vapour bubble generator that uses a heater in thermal contact with a liquid to generate a bubble. The heater is energized by an electrical pulse that is shaped to have a relatively low power, sub-nucleating portion and a high power portion that nucleates the bubble. The thermal energy transferred to the liquid by the sub-nucleating portion speeds up the nucleation of the bubble across the surface of the heater during the nucleating portion. This produces larger, more stable bubble having a regular shape.

公开(公告)号：EP2043864A1

公开(公告)日：2009-04-08

申请号：EP07719093.2

申请日：2007-06-20

申请人： Silverbrook Research Pty. Ltd

发明人： SILVERBROOK, Kia ,  FOOTE, Roger Mervyn Lloyd ,  NORTH, Angus John ,  FISHBURN, Jennifer Mia ,  LUNSMANN, Paul David ,  PAPADAKIS, Alexandra Artemis ,  C.S, Lakshmi ,  CROUS, Frederik Jacobus ,  WALKER, Matthew Stewart ,  MALLINSON, Samuel George ,  REICHL, Paul Justin

IPC分类号： B41J2/05 ,  H05B1/00 ,  B41J2/17 ,  H05B3/06 ,  B81B7/02

CPC分类号： B41J2/1603 ,  B41J2/1412 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2002/14403 ,  B41J2002/14475 ,  B41J2002/14491

摘要： A MEMS vapor bubble generator with a chamber for holding liquid and a heater positioned in the chamber for heating the liquid above its bubble nucleation point to form a vapour bubble; wherein, the heater is formed from a superalloy.