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:
May. 06, 2025

Filed:

Feb. 07, 2024
Applicant:

Fujifilm Business Innovation Corp., Tokyo, JP;

Inventors:

Kenta Shingu, Kanagawa, JP;

Yoshiteru Yamada, Kanagawa, JP;

Yuka Kawamoto, Kanagawa, JP;

Daisuke Tano, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2005.12);
U.S. Cl.
CPC ...
G03G 15/161 (2012.12); G03G 15/162 (2012.12); G03G 2215/1661 (2012.12);
Abstract

An image forming apparatus includes an image holder; a charging unit that charges a surface of the image holder; an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holder; a developing unit that accommodates an electrostatic charge image developer containing a toner having toner particles and that develops an electrostatic charge image formed on the surface of the image holder as a toner image by the electrostatic charge image developer, in which a release agent present in a region within 800 nm from a surface of the toner particles is 70% or more of a release agent in entire toner particles and a melting temperature of the release agent is 65° C. or higher and 80° C. or lower; a transfer unit that has a transfer opposing belt which comes into contact with a surface of the recording medium on an opposite side to a surface to which the toner image is transferred and that transfers the toner image formed on the surface of the image holder to the surface of the recording medium; and a cleaning device having a cleaning blade that is brought into contact with and cleans an outer peripheral surface of the transfer opposing belt, that is constituted of a polyurethane resin, and that has an indentation elastic modulus of 15 MPa or more and 35 MPa or less on a surface which is brought into contact with the transfer opposing belt, in which a total amount of F and Si present within 200 nm from the surface which is brought into contact with the transfer opposing belt accounts for 75% or more of a total amount of F and Si present within 5 μm from the surface.


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