System and method for analyzing operation of an ink jet head

Details System and method for analyzing operation of an ink jet head System and method for analyzing operation of an ink jet head

G - Physics

01

D

101/96.0213

G01D 15/18 (2006.01) B41J 2/17 (2006.01)

Patent

CA 1129939

SYSTEM AND METHOD FOR ANALYZING OPERATION OF AN INK JET DEAD Abstract of the Disclosure A system and method are disclosed for analyzing operation of an ink jet head. Initiation of start-up is sensed, as is the pressure build- up in the ink jet head as ink is supplied thereto. The time lapse between initiation of start-up and the commencement of pressure build-up is determined, as is the time required for the pressure within the ink jet head to build to an operational level, and outputs indicative thereof are utilized for determination of fault occurrence and indication of faults or initiation of fault correction in response thereto. The system includes a pair of counters controlled by start-up initiation and the ouptuts from a pair of comparators which receive predetermined reference signals and signals indicative of pressure build-up at the ink jet head, with the outputs from the counters being coupled to a microcomputer for determination of faults.

338835

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