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:
Oct. 12, 2021
Filed:
Oct. 11, 2018
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Seongsik Chang, Palo Alto, CA (US);
Omer Gila, Palo Alto, CA (US);
Daniel Espinosa, Palo Alto, CA (US);
Anthony W. McLennan, Palo Alto, CA (US);
Eyal Lovton, Ness Ziona, IL;
Asael Degany, Ness Ziona, IL;
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0266 (2013.01); G03G 15/0233 (2013.01); G03G 15/5037 (2013.01);
Abstract
A device includes a charge roller and a control portion. The charge roller is removably insertable to be in charge-transferring relation to, and spaced apart by a first air gap from, a photoconductive imaging portion of an electrophotographic printer. The control portion is to determine a size of the first air gap based on determination of a charging threshold voltage associated with the charge roller.