| 摘要 |
PROBLEM TO BE SOLVED: To efficiently prevent the accumulation of toner and leakage of toner without causing an increase in cost and deterioration of toner.SOLUTION: A developing device 122 includes a developing roller 53, regulating blade 81, seal member 82, and a magnet body 83. At both ends in the longitudinal direction of the magnet body 83, the magnet body 83 and regulating blade 81 are formed to have a larger distance between both than that at the center part in the longitudinal direction. |
