Image forming apparatus

An image forming apparatus includes an image holding member, a charging unit; an electrostatic image forming unit, a development unit, a transfer unit; a fixing unit, and a cleaning unit. A toner for electrostatic image development contains a binder resin containing an amorphous resin and a crystall...

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Main Authors Uchida, Masahiro, Koide, Takafumi, Yoshida, Kana, Funaba, Koji, Kitajima, Katsuyuki, Kuribayashi, Masataka, Fukuda, Yusuke, Hara, Satomi
Format Patent
LanguageEnglish
Published 15.01.2019
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An image forming apparatus includes an image holding member, a charging unit; an electrostatic image forming unit, a development unit, a transfer unit; a fixing unit, and a cleaning unit. A toner for electrostatic image development contains a binder resin containing an amorphous resin and a crystalline resin, and paraffin wax. The toner has a volume-average particle diameter of 6 μm to 9 μm, a shape factor SF1 of 140 or more, and a toluene insoluble content within a range of 25% to 40%. The melting temperature of the paraffin wax is 60° C. or more and 80° C. or less. The absolute value of difference between the melting temperature of the crystalline resin and the melting temperature of the paraffin is 10° C. or less.
Bibliography:Application Number: US201715660060