Hewlett-Packard Development Company, L.p.

Tanner D Christensen

Matthew James West

According to examples, an apparatus may include a processor and a memory on which are stored machine readable instructions. The instructions, when executed by the processor, may cause the processor to access a property value respectively corresponding to each of a plurality of firing actuators in a printing system and determine a count of the firing actuators having property values that are outside of a predefined threshold value range. Based on the count exceeding a predefined maximum threshold value, the instructions may cause the processor to determine locations of the plurality of the firing actuators having property values that are outside of the predefined threshold value range, determine a standard deviation of the determined locations, and based on the determined standard deviation being below a predetermined threshold, output an indication concerning a potential printhead strike.

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Corvallis, OR, United States of America

Tanner D Christensen