Hewlett-packard Development Company, L.P.

Kurt E Thiessen

Antoni S Murcia

Josep-Maria Serra

Mark McGarry

Robert J Fogarty

Ronald D Stephens

Raul Perez

Cesar Fernandez Espasa

Josep Maria Serra

Michael W Munro

David L Berardelli

Adam J Livingston

Juan Carles Vives

Ezekiel Parnow

Kevin J Hasseler

Imaging head

In an embodiment, a first signal is generated in response to movement of a media transport assembly and a second signal is generated.

Media transport encoder accuracy

In one embodiment, a method for printing a bar in a bar code includes computing a print resolution for printing the bar using Bar Width, Dot Size and Number of Dots where Bar Width is a desired width of the bar, Dot Size is a nominal dimension of each dot measured in a direction across the width of the bar and Number of Dots is a number of dots to be printed across the width of the bar, and adjusting a spacing between dots based on the computed print resolution.

Printing a bar in a bar code

A system includes a carrier, one or more printheads coupled with the carrier in a defined spatial relation, and alignment information associated with the carrier and identifying the defined spatial relation of one or more printheads.

System with alignment information

A printing system includes an ink reservoir, a support, a fluid conduit and a printhead assembly. The fluid conduit is fluidly coupled to the ink reservoir and includes a first fluid coupler. The printhead assembly includes a body configured to be releasably coupled to the support, a plurality of printheads coupled to the body including a first printhead and a second printhead, and a fluid passage fluidly coupled to both the first printhead and the second printhead. The fluid passage includes a second fluid coupler releasably coupled to the first fluid coupler.

Printing system

Various embodiments include methods and systems for monitoring a production line for non-printing events, and responsive to detecting an event, ascertaining whether an operation can be effected with an inkjet printer stationed along the production line.

Methods and systems for operating inkjet printers on production lines

A printing system has an imaging subsystem, an application subsystem, and a decoupler separating the imaging subsystem from the application subsystem. A method of imaging is also provided. In a placing action, an image is placed on a transfer roll in a first environment. In a moving action, the transfer roll is moved to a second environment. In a transferring action, the image is transferred to a media.

A method of one embodiment of the invention is disclosed that ejects fluid over a current swath of media in one pass by a first fluid-ejection component, according to a first intended pass of a multiple-pass approach for the current swath. Fluid is also ejected over the current swath of media in the one pass by a second fluid-ejection component, according to a second intended pass of the multiple-pass approach for the current swath.

Multiple-pass approach to fluid ejection over media swath in one pass

The present invention includes as one embodiment a cleaning system for an inkjet printhead, including a wiper and a media detection device coupled to the wiper for activating engagement of the wiper with the printhead when no media is detected and for deactivating the wiper when media contacts the media detection device.

Cleaning system for an inkjet printhead

A method, printer system and printer apparatus for simultaneously printing a first print medium and a second print medium, wherein, on the first print medium first information is printed that is one of: identical information to the second information and information that includes at least some information different from the second information that is printed on the second print medium.

Growing community of inventors

Escondido, CA, United States of America

Kurt E Thiessen