Hewlett-packard Development Company, L.p.

Carl Nicklos

Peter G Hwang

Stephen G Brown

Dan R Dwyer

Mark M Proia

Ki Jung Han

Matthew Douglas Reier

John B Engel

John Engel

In one example, an apparatus includes a sensor including an emitter and a detector that define a line of sight therebetween. A mechanical arm has a fixed end and a free end. An axis of rotation passing through the fixed end of the mechanical arm is parallel to the line of sight. A mechanical flag mounted to the fixed end of the mechanical arm includes at least a first protrusion that defines at least three positions of the mechanical arm relative to the line of sight.

Sensor apparatus

Printer

Imaging device

Growing community of inventors

Vancouver, WA, United States of America

Carl Nicklos