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.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Apr. 07, 2003
Applicant:
Inventor:
Patrick S. Dougherty, Boise, ID (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/508 ;
U.S. Cl.
CPC ...
G03G 1/508 ;
Abstract
A method and a device for forming an image upon a medium using toner is provided. The device includes a photosensitive drum, a toner chamber having an interior cavity and at least one toner charge applying member between the drum and the chamber. The at least one charge applying member is configured to apply an electrical charge to toner particles within the cavity. The cavity is adjustable, whereby the cavity is adjusted to improve charging of the toner particles.