The detection of the End of Refill (EOR) event of an Intermediate Tank (IT) is based on
monitoring the ink pressure using a pressure transductor. When the ink pressure reaches a
certain threshold, the IT is detected as full and the ink pump is stopped.
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INC, HP, "DYNAMIC END OF REFILL DETECTION BASED ON INK PRESSURE PROFILE", Technical Disclosure Commons, (January 12, 2021)