Hewlett-packard Development Company, L.p.

Hewlett-packard Development, L.p.

Kit L Harper

David J Waller

Jeremy A Davis

Donald L Michael

Daniel D Dowell

Louis C Barinaga

Michael Lee Hilton

Ian Patrick Anderson

Andrew T Davis

Hal Mantooth

Example embodiments of wiping are shown and described in which a print head is wiped along a non-linear path.

Wiping

A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for selectively drawing ink into or expelling ink from the chamber.

Pen maintenance system and method for operating same

A method of removing gas from a printhead is provided. A sealing material may be applied to orifices of a printhead from external the printhead to restrict passage of fluid through the orifices. Ink may be moved through a printhead conduit disposed in fluid communication with the orifices to create an inward suction adjacent the orifices so that the gas is displaced from adjacent the orifices.

Removing gas from a printhead

A system for receiving and recycling ink comprises a print cartridge having a printhead, and an ink supply reservoir fluidly connected to the print cartridge and a seal member coupled to the ink supply reservoir. The seal member defines a fluid path into the reservoir and the print cartridge engages the seal member so that ink spit from the printhead flows through the fluid path into the reservoir.

Printhead maintenance system

A printhead servicing mechanism comprises a printhead capping device that moves between a storage position and a printhead capping position, and a crank arm assembly that moves the printhead capping device between the storage and capping positions.

Printhead servicing mechanism and method

A cleaning solvent for use with an ink-jet printer, in particular an ink-jet printer having a printhead servicing system, wherein the cleaning solvent comprises glycerin and a polyhydric alcohol, such as 1,3-propanediol. The cleaning solvent is optimized for efficient printhead cleaning regardless of the printer operating environment. A method for cleaning an ink-jet printhead comprises transferring an amount of a cleaning solvent comprising glycerin and a polyhydric alcohol to a printhead surface and cleaning the printhead.

Optimizing an advanced solvent for ink systems (oasis)

An apparatus and method are disclosed herein for capping one or more printheads in a printing device. Further characteristics and features of the present invention are additionally disclosed herein, as are exemplary alternative embodiments. This abstract is not to be used in the interpretation of any of the claims.

Apparatus and method for capping one or more printheads in a printing device

A pen having a printhead and a chamber for holding ink; a sensor for monitoring changes in the amount of ink in the chamber; and a pump for seletively drawing ink into or expelling ink from the chamber.

An apparatus for delivering ink solvent to a printhead in a printing device is provided, the apparatus including a reservoir structure configured to hold ink solvent, a dispensing structure configured to dispense ink solvent drawn from the reservoir structure, and elongate conveyance structure fluidly connecting the reservoir structure to the dispensing structure, and having along its length a surface-energy characteristic which conveys a flowable continuum of ink solvent to the dispensing structure at least partially via surface-energy phenomena.

Ink solvent delivery apparatus

The present invention includes as one embodiment a capping station for a fluid ejection device having a snout feature, the capping station comprising a cap with a rigid body and a gland seal disposed around an inner perimeter of a cavity defined by the rigid body for resiliently receiving side portions of the snout feature of the fluid ejection device to create a seal with the fluid ejection device.

Growing community of inventors

Vancouver, WA, United States of America

Kit L Harper