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. 29, 2000
Filed:
Sep. 10, 1998
Yoshinori Urata, Kashihara, JP;
Tatsuo Imafuku, Nara, JP;
Toshihisa Ishida, Kashiba, JP;
Takahiro Bito, Nara, JP;
Tadashi Nakamura, Nara, JP;
Yoshiaki Akazawa, Osaka, JP;
Yasuharu Morinishi, Tenri, JP;
Nobuyasu Honda, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A binder resin as the main component of the toner has a low molecular weight polypropylene as a separating agent, encapsulated therein. Using this binder a toner with the wax having a diameter of 0.3 .mu.m or less dispersed therein is produced. The wax is included 0.5 part to 5 parts by weight for 100 parts by weight of the binder resin. This limitation of the toner prevents the setoff phenomenon during the fixing process and at the same time prevents the filming phenomenon over the photoreceptor and achieves an improved fixing performance.