Method of detecting a fault condition in a...

Details Method of detecting a fault condition in a... Method of detecting a fault condition in a...

2005-11-29

2005-11-29

Nguyen, Lamson (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S054000, C073S001790, C310S0400MM

Reexamination Certificate

active

06969142

ABSTRACT:
A method of detecting a fault condition in a micro-electromechanical device includes the step of applying at least one current pulse to an actuator of the device such that the actuator is cyclically displaced at least once. The extent of displacement of the actuator is determined. The device is calibrated by determining a relationship between an operational parameter and said displacement. The device is tested by applying said parameter to the device, such that an error is detectable where said relationship is not achieved.

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