Electrophotography – Image formation – Development
Reexamination Certificate
2006-02-21
2006-02-21
Lee, Susan (Department: 2852)
Electrophotography
Image formation
Development
C399S256000, C399S265000, C399S279000
Reexamination Certificate
active
07003249
ABSTRACT:
A developing apparatus includes a rotatable, developer carrying body for carrying a one-component developer and a rotatable, agitating member for agitating the one-component developer. The one-component developer is magnetic toner at least containing a bonding resin and magnetic iron oxide. When wettability of the magnetic toner relative to a mixture solution of methanol and water is measured at the transmittance of light having a wavelength of 780 nm, a methanol concentration at the transmittance of 80% is within the range of 45 to 65 volume %, and wherein 0.1≦b/a≦0.2 is established where a (rps) denotes the rotation speed of the developer carrying body, and b (rps) denotes the rotation speed of the agitating member.
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Hasegawa Hideaki
Naito Norihito
Ogawa Yoshihiro
Oshima Nobuo
Otomo Yasunao
Fitzpatrick ,Cella, Harper & Scinto
Lee Susan
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