Method for accurate fault diagnosis in an inkjet print head

Amol A. Khalate (Uitvinder), Dhruv Khandelwal (Uitvinder), Siep Weiland (Uitvinder)

Onderzoeksoutput: OctrooiOctrooi-publicatieProfessioneel

Uittreksel

In a method for identifying of and distinguishing between at least two different predetermined disturbance states in an inkjet print head, the method comprises providing a disturbance identification input signal; applying the disturbance identification input signal to an actuator, the actuator being part of an ejection unit of an inkjet print head; receiving a residual pressure wave output signal; and analyzing the residual pressure wave output signal. The step of analyzing comprises designing and providing a respective mathematical analysis operator for each identifiable disturbance state; executing each respective mathematical analysis operator using the received residual pressure wave output signal as an input for each respective mathematical analysis operator; comparing an output of each respective mathematical analysis operator to a respective predetermined output reference; deciding for each predetermined disturbance state whether the disturbance state is present, wherein it is decided that a corresponding disturbance state is present, if an output of a respective mathematical analysis operator corresponds to the respective predetermined output reference; and it is decided that a corresponding disturbance is not present, if an output of a respective mathematical analysis operator does not correspond to the respective predetermined output reference

TaalEngels
OctrooinummerEP3150380
IPCB41J 2/ 14 A I
Prioriteitsdatum9/12/15
StatusGepubliceerd - 5 apr 2017

Vingerafdruk

Failure analysis
Actuators

Citeer dit

Khalate, A. A., Khandelwal, D., & Weiland, S. (2017). IPC-nummer B41J 2/ 14 A I. Method for accurate fault diagnosis in an inkjet print head (Octrooi Nr. EP3150380.)
Khalate, Amol A. (Uitvinder) ; Khandelwal, Dhruv (Uitvinder) ; Weiland, Siep (Uitvinder). / Method for accurate fault diagnosis in an inkjet print head. IPC-nummer: B41J 2/ 14 A I. Octrooi Nr.: EP3150380.
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title = "Method for accurate fault diagnosis in an inkjet print head",
abstract = "In a method for identifying of and distinguishing between at least two different predetermined disturbance states in an inkjet print head, the method comprises providing a disturbance identification input signal; applying the disturbance identification input signal to an actuator, the actuator being part of an ejection unit of an inkjet print head; receiving a residual pressure wave output signal; and analyzing the residual pressure wave output signal. The step of analyzing comprises designing and providing a respective mathematical analysis operator for each identifiable disturbance state; executing each respective mathematical analysis operator using the received residual pressure wave output signal as an input for each respective mathematical analysis operator; comparing an output of each respective mathematical analysis operator to a respective predetermined output reference; deciding for each predetermined disturbance state whether the disturbance state is present, wherein it is decided that a corresponding disturbance state is present, if an output of a respective mathematical analysis operator corresponds to the respective predetermined output reference; and it is decided that a corresponding disturbance is not present, if an output of a respective mathematical analysis operator does not correspond to the respective predetermined output reference",
author = "Khalate, {Amol A.} and Dhruv Khandelwal and Siep Weiland",
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Khalate, AA, Khandelwal, D & Weiland, S 2017, Method for accurate fault diagnosis in an inkjet print head, Octrooi Nr. EP3150380, IPC-nummer B41J 2/ 14 A I.

Method for accurate fault diagnosis in an inkjet print head. / Khalate, Amol A. (Uitvinder); Khandelwal, Dhruv (Uitvinder); Weiland, Siep (Uitvinder).

IPC-nummer: B41J 2/ 14 A I. Octrooi Nr.: EP3150380.

Onderzoeksoutput: OctrooiOctrooi-publicatieProfessioneel

TY - PAT

T1 - Method for accurate fault diagnosis in an inkjet print head

AU - Khalate, Amol A.

AU - Khandelwal, Dhruv

AU - Weiland, Siep

PY - 2017/4/5

Y1 - 2017/4/5

N2 - In a method for identifying of and distinguishing between at least two different predetermined disturbance states in an inkjet print head, the method comprises providing a disturbance identification input signal; applying the disturbance identification input signal to an actuator, the actuator being part of an ejection unit of an inkjet print head; receiving a residual pressure wave output signal; and analyzing the residual pressure wave output signal. The step of analyzing comprises designing and providing a respective mathematical analysis operator for each identifiable disturbance state; executing each respective mathematical analysis operator using the received residual pressure wave output signal as an input for each respective mathematical analysis operator; comparing an output of each respective mathematical analysis operator to a respective predetermined output reference; deciding for each predetermined disturbance state whether the disturbance state is present, wherein it is decided that a corresponding disturbance state is present, if an output of a respective mathematical analysis operator corresponds to the respective predetermined output reference; and it is decided that a corresponding disturbance is not present, if an output of a respective mathematical analysis operator does not correspond to the respective predetermined output reference

AB - In a method for identifying of and distinguishing between at least two different predetermined disturbance states in an inkjet print head, the method comprises providing a disturbance identification input signal; applying the disturbance identification input signal to an actuator, the actuator being part of an ejection unit of an inkjet print head; receiving a residual pressure wave output signal; and analyzing the residual pressure wave output signal. The step of analyzing comprises designing and providing a respective mathematical analysis operator for each identifiable disturbance state; executing each respective mathematical analysis operator using the received residual pressure wave output signal as an input for each respective mathematical analysis operator; comparing an output of each respective mathematical analysis operator to a respective predetermined output reference; deciding for each predetermined disturbance state whether the disturbance state is present, wherein it is decided that a corresponding disturbance state is present, if an output of a respective mathematical analysis operator corresponds to the respective predetermined output reference; and it is decided that a corresponding disturbance is not present, if an output of a respective mathematical analysis operator does not correspond to the respective predetermined output reference

M3 - Patent publication

M1 - EP3150380

ER -