Hewlett-packard Development Company, L.p.

Lorraine Theresa Widmann

Alexander N Govyadinov

Steven B Elgee

Stephan R Clark

Jody L Clayburn

Gregory N Burton

Jonathan James Mott

Stephan Richard Clark

A method of detecting droplets of printing fluid output from a nozzle array includes, in an example, grouping a number of nozzles into a number of individual groups of nozzles and sequentially detecting, with a printing fluid detector, printing fluid ejected from each group of nozzles using a linear position encoder to synchronize the position of the printing fluid detector wherein the printing fluid detector stops moving while detecting each group of nozzles.

Detecting droplets

A sensor images drops ejected from a printhead nozzle. The sensor has two parallel spaced-apart rows of imaging pixels. In one example, a lens projects an image of a drop ejected from a printhead onto the rows sequentially as the drop travels along a trajectory.

Drop image sensing

Growing community of inventors

Corvallis, OR, United States of America

Lorraine Theresa Widmann