Patent ID: 8369750

Claim:
A developing device comprising: a stirring and conveying member to convey a developer while stirring; a developing roller which supports and conveys the developer to a developing area; a developer feed roller, arranged above the stirring and conveying member, to receive a developer conveyed from the stirring and conveying member and to feed the developer toward the developing roller; a developer guide member, arranged between the developer feed roller and the developing roller, to guide a developer conveyed by the developer feed roller toward the developing roller while the developer is allowed to accumulate; and a space forming member, arranged above the developer feed roller and the developer guide member, to form a developer standby space, together with the developing roller, the developer feed roller, and the developer guide member, to allow the developer to temporarily stand by before feeding the developer to the developing roller, wherein the developer feed roller rotates in a direction such that a developer having been overflowed from the developer standby space is conveyed away from the developing roller.