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1. (WO2018080426) CURRENT LEAKAGE TEST OF A FLUID EJECTION DIE

Pub. No.:    WO/2018/080426    International Application No.:    PCT/US2016/058479
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Oct 25 01:59:59 CEST 2016
IPC: B41J 2/05
B41J 2/08
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors: ANDERSON, Daryl E.
MARTIN, Eric
GARDNER, James Michael
CICILI, Rogelio
Title: CURRENT LEAKAGE TEST OF A FLUID EJECTION DIE
Abstract:
Example implementations relate to current leakage testing of a fluid ejection die. For example, a fluid ejection die may include plurality of nozzles, each nozzle among the plurality of nozzles including a nozzle sensor and a fluid ejector. The plurality of nozzle sensors may comprise a first subset and a second subset, each nozzle sensor among the plurality of nozzle sensors of the first subset may be electrically coupled to a first control line by a respective switch among a first group of switches, and each nozzle sensor among the plurality of nozzle sensors of the second subset may be electrically coupled to a second control line by a respective switch among a second group of switches. The fluid ejection die may include a control circuit to perform a current leakage test of the plurality of nozzles using the first control line and the second control line.