Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 1, 2019
Patent Application Number
16097983
Date Filed
July 25, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
In an example, a printhead maintenance apparatus includes a pump, a current monitor and processing circuitry. The pump may be provided to increase a pressure in a printhead, and the current monitor may monitor a current consumption of the pump. The processing circuitry may determine a rate of change of current consumption of the pump, and compare the rate of change of current consumption to a predetermined threshold.
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