John W Ferraro

US Patent:

6913338, Jul 5, 2005

Filed:

Feb 28, 2002

Appl. No.:

10/085345

Inventors:

W. Wistar Rhoads - Escondido CA, US
Eric Joseph Johnson - Carlsbad CA, US
Steve Castle - Tomecula CA, US
Frank Drogo - Bonsall CA, US
John Ferraro - San Diego CA, US
Paul E. Martinson - San Diego CA, US
Eric Mattis - La Jolla CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J002/165

US Classification:

347 28, 347 33, 347 32

Abstract:

A wet-wiping printhead cleaning system for inkjet printer incorporating a wiper for wiping the printhead including a treatment fluid applicator configured for placing treatment fluid onto at least one element of the printhead and wiper elements involved in wiping the printhead orifice plate surface, the treatment fluid being placed on said at least one element by direct contact of the applicator, subsequently the wiper wipes the printhead, the treatment being available to enhance cleaning effectiveness, the treatment fluid lubricating the wiper so as to lengthen wiper service life and enhance wiping performance, as well as acting to render unwanted accumulations on the printhead more removable by wiping.

US Patent:

RE40294, May 6, 2008

Filed:

May 17, 2001

Appl. No.:

09/859692

Inventors:

William Wistar Rhoads - Ramona CA, US
Eric Joseph Johnson - Sacramento CA, US
Frank Drogo - Bonsall CA, US
John Ferraro - San Diego CA, US
Paul Eliot Martinson - San Diego CA, US
Steven Todd Castle - Philomath OR, US
Eric Stephen Mattis - San Diego CA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 2/165

US Classification:

347 33, 347 29, 347 31

Abstract:

A wet-wiping printhead cleaning system for inkjet printer incorporating a wiper for wiping the printhead including a treatment fluid applicator configured for placing treatment fluid onto at least one element of the printhead and wiper elements involved in wiping the printhead orifice plate surface, the treatment fluid being placed on said at least one element by direct contact of the applicator, subsequently the wiper wipes the printhead, the treatment being available to enhance cleaning effectiveness, the treatment fluid lubricating the wiper so as to lengthen wiper service life and enhance wiping performance, as well as acting to render unwanted accumulations on the printhead more removable by wiping.

US Patent:

59055146, May 18, 1999

Filed:

Nov 13, 1996

Appl. No.:

8/747857

Inventors:

W. Wistar Rhoads - Escondido CA
Eric Joseph Johnson - Encinitas CA
Steve Castle - Philomath OR
Frank Drogo - San Marcos CA
John Ferraro - San Diego CA
Paul E. Martinson - Escondido CA
Eric Mattis - La Jolla CA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J2/165

US Classification:

347 33

Abstract:

A wet-wiping printhead cleaning system for inkjet printer incorporating a wiper for wiping the printhead including a treatment fluid applicator configured for placing treatment fluid onto at least one element of the printhead and wiper elements involved in wiping the printhead orifice plate surface, the treatment fluid being placed on said at least one element by direct contact of the applicator, subsequently the wiper wipes the printhead, the treatment being available to enhance cleaning effectiveness, the treatment fluid lubricating the wiper so as to lengthen wiper service life and enhance wiping performance, as well as acting to render unwanted accumulations on the printhead more removable by wiping.