Hewlett-packard Development Company, L.P.

Hewlett-packard Company

Douglas J Reed

Kenneth J Courian

Terry M Lambright

Gary G Lutnesky

Paul David Gast

Milo A Undlin

An inkjet printer cartridge adapted for enhanced cleaning thereof, and method of assembling the printer cartridge. An inkjet printer cartridge comprises a cartridge body defining a chamber therein. A substrate is coupled to the cartridge body and has a hole therethrough in communication with the chamber. An orifice plate is coupled to the substrate and has an orifice therethrough aligned with the hole. A platform is coupled to the substrate and surrounds the orifice plate. The platform defines a relatively smooth surface thereon having a predetermined surface roughness for sealably engaging a cap belonging to a print head cleaning service station movable into engagement with the printer cartridge. The surface of the platform may have a surface roughness of between approximately 0.5 microinches and approximately 2.0 microinches. Moreover, the surface of the platform is also level for sealably engaging the cap.

Inkjet printer cartridge adapted for enhanced cleaning thereof and method of assembling the printer cartridge

A flexible circuit is staked to an ink-jet pen body to resist peeling from the body and to provide a flat surface to which mechanisms for enclosing the pen nozzles can be sealed. Also disclosed is a staking apparatus and method for ensuring flatness and uniform bonding of the staked circuit.

Attachment of a flexible circuit to an ink-jet pen

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Corvallis, OR, United States of America

Douglas J Reed