Hewlett-Packard Development Company, L.p.

Hao-Hua Zhu

Kevin L Falk

David B Larson

Dean J Richtsmeier

Dan Rothenbuhler

A device () includes a sensor () to determine a capacitance between a first metal piece () coupled to a paper tray () of a printing device () and a second metal piece () coupled to a paper width adjuster () of the printing device (). The device () also includes a controlled () coupled to the sensor () comprising a processor () in communication with a memory resource () including executable instructions to determine a size of paper in the paper tray () based on the determined capacitance.

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Shanghai, China

Hao-Hua Zhu