INTEGRATED PRINT HEAD END-OF-LIFE DETECTION

摘要

A method of detecting low ink levels in an integrated print head (62) includes calibrating the integrated print head (62) and producing a baseline temperature rise, performing an end-of-life test to produce a second temperature rise; and comparing the second temperature rise and the baseline temperature rise to estimate ink levels within the integrated print head (62). A computer product for detection of end-of-life events in integrated inkjet print heads (62) includes computer code to perform a calibration procedure when an integrated print head (62) is first connected to a printer; computer code to perform an end-of-life test on the integrated print head (62) after a triggering event; and computer code to compare end of life test results with a baseline result from the calibration procedure.