Hewlett-packard Company

Antoni Monclus

Richard H Lewis

John A Barinaga

Eric L Gasvoda

Fernando Juan

Rajan Ramaswamy

Robert R Giles

Xavier Gasso Puchal

Emilio Angulo

Jordi Gimenez

Ventura Caamano

To assemble a printer chassis comprising three structural aluminium beams extending between two structural sideplates, the printer carriage beam is first attached to the sideplates by means of attachment points arranged along a straight line and then the printing beam and lower beam are attached to provide a vibration- and deformation-resistant chassis relative to which all the other printer components are referenced. Slider rods are mounted on the printer carriage beam by means of screws which hold the rods against the beam to keep them straight. The screws also pass through apertures in rod supports, the apertures being sized to permit longitudinal thermal movements of the rods relative to the beam.

Printer chassis construction

An air pressurization system is incorporated as part of a replaceable auxiliary ink supply for an ink jet printer. The auxiliary ink supply cartridge includes a pressurized container having air, ink and electrical signal connections. The air pressure applied to the auxiliary ink supply is monitored to be maintained in a predetermined range in accordance with a start-up sequence, an operational sequence, a waiting time, and a close-down sequence.

Monitoring and controlling ink pressurization in a modular ink delivery system for an inkjet printer

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Castelldelfels Cugat Barcelona, Spain

Antoni Monclus