| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure a satisfactory image quality in an image forming apparatus by eliminating an uneven liquid level of liquid developer on a supply roller lower surface having a helical groove formed thereon. Ž<P>SOLUTION: The developing device includes: a developer reservoir 312 that stores liquid developer containing toner and carrier liquid; a supply port 311 that is arranged at the developer reservoir 312 to supply the liquid developer to the developer reservoir 312; a supply roller 32 that has helical grooves 321 and supplies the liquid developer stored in the developer reservoir 312; and a developer carrier 20 that is supplied with the liquid developer by the supply roller 32 and carries the supplied liquid developer. The supply port 311 is arranged in the direction opposite to the direction of conveyance by the helical grooves 321 of liquid developer stored in the developer reservoir 312 relative to the axial center of the supply roller 32. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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