The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 09, 1999

Filed:

Mar. 27, 1997
Applicant:
Inventors:

John L Stoffel, San Diego, CA (US);

Keshava A Prasad, San Marcos, CA (US);

Ronald A Askeland, San Diego, CA (US);

Michele E Shepard, Escondido, CA (US);

Frank Drogo, San Marcos, CA (US);

Leonard Slevin, San Diego, CA (US);

Mark S Hickman, Vancouver, WA (US);

Clayton L Holstun, Escondido, CA (US);

Assignee:

Hewlett-Packard Company, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; G01D / ;
U.S. Cl.
CPC ...
347 43 ; 347100 ;
Abstract

A color ink-jet printer is provided, with one pen for dispensing black ink onto a print medium and at least one pen for dispensing color ink onto a print medium. The pen for dispensing black ink is adapted to jet droplets of black ink of a first volume and the pen(s) for dispensing color ink are adapted to jet droplets of color ink of a second volume, with the first volume being larger than the second volume. Such a color ink-jet printer provides both superior text quality of the black ink and does not require as much ink volume of the color ink(s) as previous ink-jet printers.


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