Hewlett-packard Development Company, L.P.

Ross E Friesen

Anthony Donald Studer

Donald L Michael

Jeffrey D Langford

Harold F Mantooth

Carrie E Harris

Karsten N Wilson

A process of configuring a web-fed printer is disclosed. Parameters for a web of printable media used in the web-fed printer and for print density are received. The parameters are applied to determine tension of the printable media and speed of the printable media through a print engine of the web-fed printer.

Web-fed printer configuration

In one embodiment, a printhead assembly includes: an ink reservoir; a printhead; a passage for carrying ink from the ink reservoir to the printhead; and a port from the passage to a source of air pressure. The port is operable between a closed position in which the passage is not pressurized with air and an open position in which the passage is exposed to pressurized air. In another embodiment, an ink supply includes: a reservoir for holding ink; a printhead; a standpipe connecting the reservoir and the printhead such that ink may flow from the reservoir to the printhead through the standpipe; and a valve operatively connected to the standpipe. The valve is operative between a first position in which the standpipe is pressurized with air and a second position in which of the standpipe is not pressurized with air.

Printhead evacuation mechanism and method

A valve mechanism and a method for preparing an inkjet print cartridge and printer for inactivity is herein disclosed. Pressurized fluid is introduced to a standpipe volume to create a pressure differential that forces ink within the standpipe into an ink reservoir.

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Corvallis, OR, United States of America

Ross E Friesen