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:
Nov. 25, 2014

Filed:

May. 01, 2012
Applicant:

Daisuke Haruyama, Kanagawa, JP;

Inventor:

Daisuke Haruyama, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 5/147 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 5/14704 (2013.01); G03G 15/75 (2013.01); G03G 5/14726 (2013.01); G03G 5/14786 (2013.01);
Abstract

An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer, and a surface protective layer that contains fluororesin particles and a fluorinated alkyl group-containing copolymer; a charging unit that charges the surface of the electrophotographic photoreceptor; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that accommodates a developer, and develops the electrostatic latent image with the developer to form a toner image; a transfer unit that transfers the toner image to a recording medium; and a cleaning unit that removes the remained developer, wherein when the electrophotographic photoreceptor is rotated 50,000 times by repeating the formation of an image having image sections and non-image sections and having an image density of 7%, and then the surface of the electrophotographic photoreceptor is analyzed by X-ray photoelectron spectroscopy, the zinc coating ratio is in the range of from 50% to 100%.


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