Control of energy to thermal inkjet heating elements

B - Operations – Transporting – 41 – J

Patent

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B41J 2/015 (2006.01) B41J 2/14 (2006.01) B41J 2/21 (2006.01)

Patent

CA 2048277

A thermal ink jet printhead including a substrate, a resistor layer on the substrate having ink drop firing resistors and energy controlling resistors defined therein, a metallization layer adjacent the resistor layer and having metallic interconnections formed therein for providing serial energy controlling connections between predetermined ones of the ink drop firing resistors and predetermined ones of the energy controlling resistors, a plurality of ink containing chambers respectively formed over the metallization layer adjacent respective ones of the ink drop firing resistors, and an orifice plate secured over the chambers and containing a plurality of nozzles respectively associated with the chambers.

Une tête d'impression thermique à jet d'encre comprenant un support, une couche de résistance sur le support ayant des résistances de projection de gouttes d'encre et des résistances de contrôle d'énergie ainsi définies, une couche de métallisation adjacente à la couche de résistance et possédant des interconnexions métalliques qui y sont formées afin d'assurer des connexions de contrôle d'énergie sérielles entre des résistances prédéterminées de propulsion de gouttes d'encre et des résistances prédéterminées de contrôle d'énergie; un certain nombre de chambres contenant de l'encre sont respectivement formées sur la couche de métallisation adjacente aux résistances de projection de gouttes d'encre respectives, une plaque à orifice étant assujettie aux chambres et contenant un certain nombre de tuyères associées respectivement aux chambres.

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