| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device with a large charge amount on developer and an image forming apparatus. <P>SOLUTION: A developing device 14Y includes: a developer container 140 containing developer including tonner and magnetic body; a conveyance member 143 having a rotary shaft and a spiral blade 1432 attached on a rotary shaft 1431 disposed in the developer container 140 leaving a space G between the blade 1432 and the inner wall 1403 of the developer container 140 to convey the developer in the developer container 140 in an extending direction of the rotary shaft while rotating and mixing the developer; a magnet 144 disposed facing to the outer wall 1402 in an extending direction of the developer container 140 to attract the developer in the developer container 140; and a conveyance mechanism 145 that conveys the magnet along the outer wall in the extending direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
