Hewlett-packard Company

The Goodyear & Tire Rubber Company

John Alan Mohr

John L Stoffel, Jr

Gerold G Firl

Mindy A Hamlin

Jeffery Lofgren

Stuart D Asakawa

William D Kappele

Bruce E Mueller

Michael B Lloyd

Travis Ray Toline

Vinod Pius Raju

A drive system comprising a driver pulley, a driven pulley ( ), and a belt ( ). The belt ( ) has a pulley engaging surface ( ) comprised of a plurality of transversely extending self-tracking teeth ( ). The driven pulley ( ) has a non-grooved, crownless belt engaging surface ( ). The material ( ) forming the pulley engaging surface ( ) of the belt ( ) having a relatively low coefficient of friction, and the material ( ) forming the belt engaging surface ( ) of the driven pulley ( ) having a relatively high coefficient of friction.

Power transmission drive system

A thermal ink jet print device having a phase change material, a solid or fluid, disposed in heat exchange proximity to the thermal ink jet printhead to absorb printhead heat energy by changing physical state at a printhead temperature below that at which unacceptable printing takes place and at a rate commensurate with the rate of heat energy input.

Thermal ink jet print device having phase change cooling

An ink level sensor (18, 18', 18') is provided for detecting the level of ink in an ink cartridge (10) containing a capillary reservoir (14), such as foam, therein. The ink level sensor is a binary fluidic indicator, which provides both a human and machine readable indication of the level of the ink. A plurality of embodiments are described, including a two-port sensor (20), a one-port sensor (22), and a pair of fluidically-connected needles of different length (24).

Capillary reservoir binary ink level sensor

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Lincoln, NE, United States of America

John Alan Mohr