ClassID:

57320

B41J2002/14354 - CPC Classification

Classification description:

Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material; Ink jet; Nozzles; Structure thereof only for on-demand ink jet heads Sensor in each pressure chamber

Recent Application in this class:
#1
20250196492
2025-06-19

RECORDING DEVICE AND CONTROL METHOD THEREOF

#2
20250012653
2025-01-09

PRESSURE DETECTION ELEMENT, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE DEVICE

#3
20240399736
2024-12-05

LIQUID EJECTION DEVICE AND DEFECTIVE NOZZLE DETERMINATION METHOD

#4
20240316921
2024-09-26

HEAD UNIT AND LIQUID EJECTION APPARATUS

#5
20240253346
2024-08-01

HEAD UNIT AND LIQUID EJECTING APPARATUS

#6
20240198662
2024-06-20

LIQUID EJECTING APPARATUS AND PRINT HEAD

#7
20240109306
2024-04-04

LIQUID EJECTION APPARATUS AND LIQUID VISCOSITY DETECTION METHOD CAPABLE OF DETECTING VISCOSITY OF LIQUID

#8
20230286269
2023-09-14

Liquid ejecting apparatus and method for controlling liquid ejecting apparatus

#9
20230278330
2023-09-07

Printing apparatus and printing method

#10
20230264469
2023-08-24

Print head and liquid ejecting apparatus

#11
20230257609
2023-08-17

INFRARED PERMEABLE INK COMPOSITION, OPTICAL FILTER FORMED THEREBY, AND ELECTRONIC APPARATUS INCLUDING THE OPTICAL FILTER

#12
20220143973
2022-05-12

PRINTERS AND CONTROLLERS

#13
20220126594
2022-04-28

Liquid circulation device, liquid discharge apparatus, and liquid circulation method

#14
20220080723
2022-03-17

Ink jet printing apparatus, dummy jet method, and program

#15
20220001667
2022-01-06

Decoders to activate fluidic actuators for sense measurements

#16
20210331467
2021-10-28

Liquid ejection head unit, liquid ejection apparatus, and liquid ejection state determination method of liquid ejection apparatus

#17
20210252851
2021-08-19

Printing apparatus and method of judging nozzle discharge state of printing apparatus

#18
20210178774
2021-06-17

Liquid discharge apparatus

#19
20210170749
2021-06-10

Servicing based on impedance values

#20
20210094274
2021-04-01

Gas purger anomaly condition indication

#21
20210053343
2021-02-25

Fluidic die with low voltage monitoring circuit including high voltage tolerant transistor

#22
20210039383
2021-02-11

Non-nucleation fluid actuator measurements

#23
20210008873
2021-01-14

Method of fast nozzle failure detection

#24
20200376842
2020-12-03

Liquid circulation device, liquid discharge apparatus, and liquid circulation method

#25
20200298555
2020-09-24

Printing apparatus and discharge status judgment method

#26
20200180305
2020-06-11

Fluid actuator evaluation independent of actuation state

#27
20200171814
2020-06-04

Fault tolerant printhead

#28
20200164632
2020-05-28

Liquid ejecting apparatus, print head, and liquid ejecting method

#29
20200114646
2020-04-16

Nozzle characteristics

#30
20200061988
2020-02-27

Temperature sensing in a printhead using piezoelectric actuators

#31
20200055312
2020-02-20

Detecting a drive bubble formation and collapse

#32
20200047491
2020-02-13

Printing apparatus and method of judging nozzle discharge state of printing apparatus

#33
20200016888
2020-01-16

On-die actuator evaluation

#34
20200009889
2020-01-09

Method for detecting ejection abnormality of nozzle and system for detecting ejection abnormality of nozzle

#35
20200009861
2020-01-09

Apparatus for detecting liquid discharge characteristics and apparatus for discharging liquid

#36
20190375206
2019-12-12

Fluid ejection die including signal control logic

#37
20190299614
2019-10-03

Liquid ejection head and recording apparatus

#38
20190299600
2019-10-03

Element substrate, printhead, and printing apparatus

#39
20190299591
2019-10-03

Redundant sensor data serialization, sensed state determination and sensor malfunction diagnosis apparatus

#40
20190299590
2019-10-03

Printing apparatus and discharge status judgment method

#41
20190263113
2019-08-29

Liquid discharging apparatus including drive signal generation unit that generates first and second drive signals for checking discharge abnormalities

#42
20190255837
2019-08-22

Low voltage bias of nozzle sensors

#43
20190202206
2019-07-04

Fluid ejection device and particle detector

#44
20190168512
2019-06-06

Fluid ejection device

#45
20190126650
2019-05-02

Liquid jet head and liquid jet recording device

#46
20190111676
2019-04-18

Modifying firing parameters for printheads

#47
20190061341
2019-02-28

Method for cancelling electric crosstalk in a printhead

#48
20190023004
2019-01-24

Nozzle condition indication

#49
20190009531
2019-01-10

Head unit control circuit

#50
20180361735
2018-12-20

Method for detecting disturbance in droplet ejection of an inkjet print head

#51
20180354271
2018-12-13

Printhead-integrated ink level sensor with central clearing resistor

#52
20180345667
2018-12-06

Printhead condition detection system

#53
20180297370
2018-10-18

Printheads with sensor plate impedance measurement

#54
20180257371
2018-09-13

Liquid ejecting device, head unit, and method for controlling liquid ejecting device

#55
20180250938
2018-09-06

Liquid droplet ejecting apparatus, remote monitoring system, and method of determining replacement necessity of liquid droplet ejecting head

#56
20180250936
2018-09-06

Method of calibrating a wiper position in an ink jet printer

#57
20180244068
2018-08-30

Liquid circulation device, liquid discharge device and liquid discharge method

#58
20180178506
2018-06-28

Droplet ejecting device

#59
20180170051
2018-06-21

Print element substrate, printhead, and image forming apparatus

#60
20180170034
2018-06-21

Detect circuits for print heads

#61
20180162124
2018-06-14

Detecting a drive bubble formation and collapse

#62
20180134032
2018-05-17

Inkjet printer and printing method

#63
20180037022
2018-02-08

Droplet discharge apparatus, control device, and control method

#64
20180022106
2018-01-25

Fluid ejection device

#65
20180022091
2018-01-25

Printer fluid impedance sensing in a printhead

#66
20180015729
2018-01-18

Cartridges comprising sensors including ground electrodes exposed to fluid chambers

#67
20180009229
2018-01-11

Jetting device with filter status detection

#68
20180001642
2018-01-04

Printhead cartridge molded with nozzle health sensor

#69
20170305146
2017-10-26

Method for detecting an operating status of an inkjet nozzle

#70
20170297333
2017-10-19

Liquid discharging head, liquid discharging unit, and device for discharging liquid

#71
20170259570
2017-09-14

Liquid circulation device, liquid discharge device and liquid discharge method

#72
20170225455
2017-08-10

Method for detecting an operating state of an inkjet print head nozzle

#73
20170225454
2017-08-10

Liquid ejecting apparatus and liquid usage amount calculation method for liquid ejecting apparatus

#74
20170182773
2017-06-29

Head unit

#75
20170182578
2017-06-29

Method and device for jetting droplets

#76
20170129253
2017-05-11

Printing apparatus, method of controlling printing apparatus, and control program of printing apparatus

#77
20170129236
2017-05-11

Image forming device and dot pattern determining method

#78
20170120604
2017-05-04

Liquid droplet forming apparatus

#79
20170098756
2017-04-06

Piezoelectric film, piezoelectric film element, piezoelectric actuator, piezoelectric sensor, hard-disk drive and ink jet printer head

#80
20170080707
2017-03-23

Inkjet printing system, fluid ejection system, and method thereof

#81
20170043572
2017-02-16

Evaluating print head nozzle condition

#82
20170036452
2017-02-09

Fluid ejection device with integrated ink level sensors

#83
20170028738
2017-02-02

Printheads with sensor plate impedance measurement

#84
20170021626
2017-01-26

Fluid ejection device with integrated ink level sensor

#85
20170008285
2017-01-12

Determining an issue in an inkjet nozzle with impedance measurements

#86
20170001433
2017-01-05

Evaluating print nozzle condition

#87
20160375684
2016-12-29

Droplet ejection apparatus and method for ejecting liquid droplet

#88
20160375683
2016-12-29

Liquid jetting device

#89
20160339696
2016-11-24

Ink property sensing on a printhead

#90
20160339695
2016-11-24

Printhead dies molded with nozzle health sensor

#91
20160297192
2016-10-13

Image forming device and dot pattern determining method

#92
20160279929
2016-09-29

Liquid discharge apparatus, control method of liquid discharge apparatus, and control program of liquid discharge apparatus

#93
20160271940
2016-09-22

Detecting a drive bubble formation and collapse

#94
20160250847
2016-09-01

Printhead leak determination

#95
20160159092
2016-06-09

Printhead configured for use with high viscosity materials

#96
20160144614
2016-05-26

Printing apparatus and printing method

#97
20160144613
2016-05-26

Recording method and recording apparatus

#98
20160107440
2016-04-21

Liquid droplet discharge device, liquid droplet discharge method, and non-transitory storage medium storing program

#99
20160082725
2016-03-24

Determining an issue in an inkjet nozzle with impedance measurements

#100
20160082720
2016-03-24

Method of sensing degradation of piezoelectric actuators

#101
20160031030
2016-02-04

Method and device for jetting droplets

#102
20160009077
2016-01-14

Liquid discharging apparatus and control method of liquid discharging apparatus

#103
20150375520
2015-12-31

Abnormality sensing method for pressure sensor, and liquid discharge device

#104
20150375503
2015-12-31

Printing apparatus, method of controlling printing apparatus, and control program of printing apparatus

#105
20150375500
2015-12-31

Liquid ejecting apparatus, method of controlling liquid ejecting apparatus, and program for controlling liquid ejecting apparatus

#106
20150367633
2015-12-24

Liquid droplet ejecting device, inkjet recording apparatus, liquid droplet ejecting method, and storage medium for liquid droplet ejecting method

#107
20150352841
2015-12-10

Liquid droplet ejection device, liquid droplet ejecting method and inkjet recording apparatus

#108
20150336385
2015-11-26

Liquid ejection head, method for cleaning the head, recording apparatus provided with the head

#109
20150321470
2015-11-12

Base, liquid discharge head, printing apparatus, and method for determining liquid discharge status

#110
20150298454
2015-10-22

Recording apparatus and recording method

#111
20150273848
2015-10-01

Fluid ejection device with integrated ink level sensor

#112
20150258780
2015-09-17

Liquid viscosity detecting method for liquid droplet ejecting device, control method for liquid droplet ejecting device, and liquid droplet ejecting device

#113
20150251415
2015-09-10

Semiconductor device, liquid discharge head, and liquid discharge apparatus

#114
20150224761
2015-08-13

Image forming device and dot pattern determining method

#115
20150202872
2015-07-23

Liquid discharge apparatus and liquid discharge state detecting method

#116
20150191021
2015-07-09

Liquid discharge apparatus and liquid supply path state detection method

#117
20150124011
2015-05-07

Inkjet printing system, fluid ejection system, and method thereof

#118
20150091960
2015-04-02

Liquid discharging apparatus

#119
20150054879
2015-02-26

Inkjet print head health detection

#120
20150029252
2015-01-29

Determining an issue in an inkjet nozzle with impedance measurements

#121
20150029250
2015-01-29

Inkjet issue determination

#122
20150015632
2015-01-15

Liquid ejection head and substrate

#123
20140333694
2014-11-13

Detecting a drive bubble formation and collapse

#124
20140327712
2014-11-06

Liquid discharge device, testing method, and medium with recorded program

#125
20140300657
2014-10-09

Printing apparatus and ink discharge state determination method

#126
20140247301
2014-09-04

Liquid ejection device, inspection method, and program

#127
20140216141
2014-08-07

Piezo actuated fluid dispenser fluid characterization

#128
20140210915
2014-07-31

Liquid ejecting head, liquid ejecting apparatus, piezoelectric element and sensor

#129
20140210881
2014-07-31

Inkjet printing system, fluid ejection system, and method thereof

#130
20140118430
2014-05-01

Fluid ejection systems and methods thereof

#131
20130278657
2013-10-24

Calibrating a program that detects a condition of an inkjet nozzle

#132
20130278656
2013-10-24

Determining an issue with an inkjet nozzle using an impedance difference

#133
20130135381
2013-05-30

Printing apparatus

#134
20130135376
2013-05-30

Printing apparatus

#135
20130070012
2013-03-21

Liquid ejection head, liquid ejection apparatus and abnormality detection method for liquid ejection head

#136
20130057610
2013-03-07

Switchable feedback damping of drop-on-demand piezoelectric fluid-ejection mechanism

#137
20130021404
2013-01-24

Method for monitoring a jetting performance of a print head

#138
20120320120
2012-12-20

Liquid discharge device, testing method, and medium with recorded program

#139
20120306953
2012-12-06

Printing apparatus and discharge inspection method

#140
20120293576
2012-11-22

Device and method for managing piezo inkjet head

#141
20120249638
2012-10-04

LIQUID EJECTING APPARATUS AND CONTROL METHOD THEREOF

#142
20120229543
2012-09-13

FLUID EJECTING APPARATUS

#143
20120223983
2012-09-06

Liquid ejection device, inspection method, and program

#144
20120212529
2012-08-23

Nozzle state detecting apparatus and image forming apparatus

#145
20120206532
2012-08-16

Error detection apparatus of inkjet printer head and error detection method thereof

#146
20120206518
2012-08-16

Liquid ejecting device, inspection method, and program

#147
20120147081
2012-06-14

Foreign object detection device, foreign object detection method, droplet discharging device, and droplet discharging method

#148
20120062631
2012-03-15

Recording head driving method and recording apparatus

#149
20120019602
2012-01-26

Printing nozzle arrangement having fault detector

#150
20120001966
2012-01-05

Determining whether a flow path is ready for ejecting a drop

#151
20110285773
2011-11-24

Liquid ejection device and liquid testing method

#152
20110227975
2011-09-22

PRINTHEAD INTEGRATED CIRCUIT HAVING POWER MONITORING

#153
20110211000
2011-09-01

Method of detecting discharging state of inkjet recording head

#154
20110193903
2011-08-11

Monitoring apparatus for inkjet head

#155
20110187386
2011-08-04

Method of detecting MEM device faults with single current pulse

#156
20110164085
2011-07-07

Liquid discharge head and liquid discharge apparatus using liquid discharge head

#157
20110148976
2011-06-23

Recording head and recording apparatus, and inspection apparatus of recording head and method thereof

#158
20110148967
2011-06-23

Method for detecting an operating state of a fluid chamber of an inkjet print head

#159
20110084997
2011-04-14

Determining a healthy fluid ejection nozzle

#160
20110063360
2011-03-17

Inkjet print head and method of measuring temperature thereof

#161
20100321441
2010-12-23

Printing apparatus and ink discharge failure detection method

#162
20100315454
2010-12-16

Recording head and test apparatus for recording head

#163
20100302323
2010-12-02

FLUID DISCHARGE HEAD AND IMAGE FORMING APPARATUS

#164
20100201728
2010-08-12

Printing nozzle having fault sensor

#165
20100194810
2010-08-05

Liquid discharge head and liquid discharge apparatus using liquid discharge head

#166
20100188463
2010-07-29

Nozzle device incorporating movement sensor

#167
20100156982
2010-06-24

Ejection status determining method for inkjet printing head

#168
20100149275
2010-06-17

Printhead integrated circuit assembly with compensation controller

#169
20100149237
2010-06-17

Recording head and recording apparatus, and inspection apparatus of recording head and method thereof

#170
20100141710
2010-06-10

Nozzle Device With Expansive Chamber-Defining Layer

#171
20100134565
2010-06-03

Inkjet Nozzle Device With Static And Movable Nozzle Chamber Portions

#172
20100123748
2010-05-20

Liquid droplet ejecting apparatus, liquid droplet ejecting method and computer readable medium storing a program

#173
20100073429
2010-03-25

Inkjet Nozzle Device With Cantilevered Actuating Arm

#174
20100039477
2010-02-18

Thermal inkjet printhead and method of driving same

#175
20090278880
2009-11-12

INK JET DEVICE FOR PRODUCING A BIOLOGICAL ASSAY SUBSTRATE BY RELEASING A PLURALITY OF SUBSTANCES ONTO THE SUBSTRATE, AND METHOD FOR MONITORING THE INK JET DEVICE

#176
20090244152
2009-10-01

Piezoelectric head inspection device and droplet jetting device

#177
20090167807
2009-07-02

Print head error checking apparatus and method

#178
20090085983
2009-04-02

Inkjet printer

#179
20090085974
2009-04-02

Printing nozzle arrangement having movement sensor

#180
20090085946
2009-04-02

INKJET RECORDING HEAD AND INKJET RECORDING APPARATUS HAVING THE SAME

#181
20090079799
2009-03-26

Jetting error detector, droplet jetting applicator and display device manufacturing method

#182
20090079772
2009-03-26

METHOD FOR OBTAINING AN IMAGE WITH AN INK JET PRINTER AND A PRINTER SUITABLE FOR PERFORMING THAT METHOD

#183
20090073237
2009-03-19

Nozzle device with expansive chamber-defining layer

#184
20090073210
2009-03-19

Nozzle device with movement sensor

#185
20090073206
2009-03-19

METHOD FOR OBTAINING AN IMAGE WITH AN INK JET PRINTER AND A PRINTER SUITABLE FOR PERFORMING THAT METHOD

#186
20090058914
2009-03-05

INKJET PRINT HEAD AND METHOD THEREOF

#187
20090040258
2009-02-12

INKJET IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME

#188
20090002428
2009-01-01

METHOD OF DETECTING MISSING NOZZLE AND INK JET PRINT HEAD USING THE SAME

#189
20090002427
2009-01-01

METHOD OF DETECTING MISSING NOZZLE AND INK JET PRINT HEAD USING THE SAME

#190
20080309701
2008-12-18

Ink Jet Device for Releasing Controllably a Plurality of Substances Onto a Substrate, Method of Discrimination Between a Plurality of Substances and Use of an Ink Jet Device

#191
20080266362
2008-10-30

Recording head driving method and recording apparatus

#192
20080211875
2008-09-04

Inkjet nozzle device with cantilevered actuating arm

#193
20080136859
2008-06-12

Method and apparatus to check piezoelectric inkjet head

#194
20080094442
2008-04-24

Nozzle arrangement with a movement sensor for an inkjet printer

#195
20080088658
2008-04-17

Printhead integrated circuit assembly with compensation controller

#196
20080088657
2008-04-17

Droplet ejection apparatus and a method of detecting and judging head failure in the same

#197
20080074461
2008-03-27

Nozzle arrangement with a movement sensor for an inkjet printer

#198
20070291069
2007-12-20

Inspection method for a recording head, inspection apparatus for a recording head, and recording apparatus

#199
20070291068
2007-12-20

Printing apparatus and ink discharge failure detection method

#200
20070291066
2007-12-20

Recording head and recording apparatus, and inspection apparatus of recording head and method thereof

#201
20070279446
2007-12-06

Piezoelectric head inspection device and droplet jetting device

#202
20070273721
2007-11-29

Method for obtaining an image, and an ink jet printer for performing the method

#203
20070229566
2007-10-04

Liquid discharge head and liquid discharge apparatus using liquid discharge head

#204
20070176959
2007-08-02

Inkjet nozzle device with static and movable nozzle portions

#205
20070120893
2007-05-31

MICROINJECTORS AND TEMPERATURE INSPECTION METHODS THEREOF

#206
20070103500
2007-05-10

Liquid ejection apparatus and ejection abnormality factor extraction method

#207
20070080979
2007-04-12

Thermal bend actuator arrangement with a diagnostic sensor

#208
20070076025
2007-04-05

Liquid ejection apparatus and control method for applying meniscus vibration according to the viscosity states of nozzles

#209
20070070112
2007-03-29

Liquid ejection apparatus and air bubble determination method

#210
20070040860
2007-02-22

Fluid injection devices with sensors, fluid injection system and method of analyzing fluid in fluid injection devices

#211
20070035584
2007-02-15

Ink jet nozzle arrangement incorporating mechanically coupled bend actuator arms

#212
20060290740
2006-12-28

Liquid ejecting apparatus

#213
20060290737
2006-12-28

Liquid ejection head and liquid ejection apparatus

#214
20060268046
2006-11-30

Liquid ejection apparatus and ejection abnormality determination method

#215
20060256145
2006-11-16

Pressure sensor, pressure measurement apparatus, liquid ejection head and image forming apparatus

#216
20060250435
2006-11-09

Ink jet nozzle assembly with over-actuation detection

#217
20060221144
2006-10-05

Liquid ejection head and liquid ejection apparatus having multiple pressure sensor member layers

#218
20060187249
2006-08-24

Method of detecting liquid amount, printer, and printing system

#219
20060170744
2006-08-03

Printing method for use in an inkjet printer and an inkjet printer which has been modified for the printing method

#220
20060170743
2006-08-03

Printing method for preventing and/or treating air bubbles in an inkjet printer and an inkjet printer which has been modified for the printing method

#221
20060170725
2006-08-03

Method of preparing an ink duct of an inkjet printhead, and an inkjet printer which has been modified for this method to be applied

#222
20060170719
2006-08-03

Method of controlling the print quality for an inkjet printer and a printer which functions to perform this method

#223
20060130904
2006-06-22

Fluid ejection device with inner and outer arms

#224
20060125870
2006-06-15

Defect detection device of a print head and method of detecting defect of a print head

#225
20060071966
2006-04-06

Liquid ejection head

#226
20060061624
2006-03-23

Liquid ejection apparatus and liquid ejection head restoring method

#227
20060044343
2006-03-02

Ink jet nozzle arrangement that incorporates a movement sensor

#228
20060017781
2006-01-26

Micro-electromechanical actuating mechanism with built-in test circuit

#229
20060012645
2006-01-19

Discharge head of image forming apparatus with piezoelectric body for generating and sensing pressure

#230
20050285908
2005-12-29

Inkjet system, method of making this system, and use of said system

#231
20050275492
2005-12-15

MEMS fluid ejection device configured for detecting a fault condition

#232
20050270326
2005-12-08

Micro-electromechanical integrated circuit device for fluid ejection

#233
20050231311
2005-10-20

Method of detecting over-actuation of MEM device

#234
20050225600
2005-10-13

Inkjet printhead with micro-electromechanical fluid ejection devices having integrated movement sensors

#235
20050225581
2005-10-13

Print method for an inkjet printer and an inkjet printer suitable for using such a method

#236
20050225580
2005-10-13

Print method and printer suitable for the application of the method

#237
20050219306
2005-10-06

Method of detecting a blockage within an inkjet nozzle

#238
20050219286
2005-10-06

Image forming apparatus

#239
20050212845
2005-09-29

Droplet discharging device and method of detecting discharge abnormality thereof

#240
20050195248
2005-09-08

Discharge determination device and method

#241
20050179736
2005-08-18

Liquid ejection device and image forming apparatus

#242
20050146567
2005-07-07

Ink jet printhead chip with misdirected drop collection

#243
20050140733
2005-06-30

Ink jet printer with closely packed nozzle assemblies

#244
20050134657
2005-06-23

Droplet ejection head and image recording apparatus

#245
20050122367
2005-06-09

Testing of a micro-electromechanical device for under actuation

#246
20050116977
2005-06-02

Droplet ejection apparatus and method of detecting and judging ejection failure in droplet ejection heads

#247
20050078141
2005-04-14

Micro-electromechanical device with built-in fault detection

#248
20050077903
2005-04-14

Testing regime for a micro-electromechanical device

#249
20050057596
2005-03-17

Droplet ejection apparatus and a method of detecting and judging head failure in the same

#250
20050046661
2005-03-03

Method of detecting a fault in a micro-electromechanical device

#251
20050046660
2005-03-03

Micro-electromechanical fluid ejection device having an integrated movement sensor

#252
20050046659
2005-03-03

Method of detecting a fault condition in a micro-electromechanical device