Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Image forming apparatus incorporating developing device with first and second seals
A development device includes a development casing, a developer bearer disposed facing a latent image bearer through an opening formed in the development casing, a magnetic field generator, a developer regulator disposed facing the developer bearer, a first seal member to cover a clearance between the latent image bearer and a rim of the development casing upstream from the opening, and a second seal member. The first seal member includes a first end portion fixed to the rim of the development casing and a second end portion in contact with the latent image bearer, and the second seal member includes a first end portion fixed to an inner face of the development casing farther from the latent image bearer than the first seal member, and a second end portion hanging to contact the developer carried on the developer bearer downstream from the developer regulator.
Ricoh Company, Ltd.
G
G03G
inventional
Emi Yutaka Kiyonori Takuzi Yuki Hideo Kohichi
Kita Takahashi Tsuda Yoneda Oshikawa Yoshizawa Utsunomiya