公开(公告)号：EP2310205A4

公开(公告)日：2011-08-24

申请号：EP08781582

申请日：2008-07-09

申请人： HEWLETT PACKARD DEVELOPMENT CO

发明人： BHOWMIK SIDDHARTHA ,  KOMMERA SWAROOP K ,  GIRI MANISH ,  BROWNING ROBERT N K ,  SCHMIDT CHARLES GUSTAV

IPC分类号： B41J2/14 ,  B41J2/16

CPC分类号： B41J2/1601 ,  B41J2/14145 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1634

公开(公告)号：EP3311126A4

公开(公告)日：2018-06-27

申请号：EP15907447

申请日：2015-10-28

申请人： HEWLETT PACKARD DEVELOPMENT CO

发明人： CUMBIE MICHAEL W ,  BROWNING ROBERT N K

IPC分类号： G01F23/24 ,  B41J2/175 ,  G01F23/22

CPC分类号： G01F23/22 ,  B41J2/17513 ,  B41J2/17566 ,  B41J2/195 ,  G01F23/247 ,  G01F23/248 ,  H05B3/82

摘要： Examples provide a series of heaters supported at different depths within the volume. A series of temperature sensors is supported at different depths within the volume. The temperature sensors output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid within the volume.

公开(公告)号：EP2621726A4

公开(公告)日：2018-03-14

申请号：EP10857988

申请日：2010-09-30

申请人： HEWLETT PACKARD DEVELOPMENT CO

发明人： BROWNING ROBERT N K ,  GARDNER JAMES ,  MARTIN ERIC ,  VAN BROCKLIN ANDREW L ,  HUNTER MARK

IPC分类号： B41J2/14 ,  B41J2/32

CPC分类号： B41J2/135 ,  B41J2/1408 ,  B41J2/14145

摘要： A fluid ejection assembly includes a fluid slot formed in a die. The assembly also includes a nozzle column is formed along a side of the fluid slot. The assembly also includes a pair of thermal sensors to measure die temperature at the middle of the nozzle column and at a first end of the nozzle column.