Patent ID: 8483600

Claim:
A development device, comprising: a first toner carrier and a second toner carrier which are configured to carry toner thereon and to convey the toner to develop with the toner an electrostatic latent image formed on an image carrier; and a developer carrier which is provided facing the first toner carrier and the second toner carrier and is configured to carry thereon developer which contains toner and to supply the toner in the developer to the first toner carrier and the second toner carrier, wherein the developer carrier includes: a stationarily disposed magnetic body, the magnetic body having: a first magnetic pole provided to be opposed to the first toner carrier; a second magnetic pole provided to be opposed to the second toner carrier; and at least a third magnetic pole provided between the first magnetic pole and the second magnetic pole; and a sleeve roller configured to contain the magnetic body therein and to rotate to convey the developer carried thereon.