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1. (WO2018199888) FLUID EJECTION DIES INCLUDING STRAIN GAUGE SENSORS
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Pub. No.: WO/2018/199888 International Application No.: PCT/US2017/029115
Publication Date: 01.11.2018 International Filing Date: 24.04.2017
IPC:
B41J 2/135 (2006.01) ,B41J 2/165 (2006.01) ,B41J 29/393 (2006.01) ,G01L 1/16 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
135
Nozzles
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2
Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005
characterised by bringing liquid or particles selectively into contact with a printing material
01
Ink jet
135
Nozzles
165
Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
29
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
38
Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
393
Devices for controlling or analysing the entire machine
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1
Measuring force or stress, in general
16
using properties of piezo-electric devices
Applicants:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US/US]; 11445 Compaq Center Drive W. Houston, Texas 77070, US
Inventors:
ANDERSON, Daryl E.; US
GARDNER, James; US
FISHER, Berkeley; US
Agent:
MORRIS, Jordan E.; US
BILLIG, Patrick G.; US
LUND, Scott; US
Priority Data:
Title (EN) FLUID EJECTION DIES INCLUDING STRAIN GAUGE SENSORS
(FR) MATRICES D'ÉJECTION DE FLUIDE COMPRENANT DES CAPTEURS À JAUGE DE DÉFORMATION
Abstract:
(EN) A fluid ejection die includes a plurality of nozzles to eject fluid drops and a plurality of strain gauge sensors to sense strain. Each strain gauge sensor corresponds to a nozzle and passes the sensed strain to a controller to determine the health of the nozzle based on the sensed strain.
(FR) L’invention porte sur une matrice d'éjection de fluide comprenant une pluralité de buses permettant d’éjecter des gouttes de fluide et une pluralité de capteurs à jauge de déformation permettant de détecter toute déformation. Chaque capteur à jauge de déformation correspond à une buse et transmet la déformation détectée à un contrôleur pour déterminer le bon fonctionnement de la buse en fonction de la déformation détectée.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)