| 摘要 |
PROBLEM TO BE SOLVED: To improve the durability by reducing a load between a developing roller and a photoreceptor drum. SOLUTION: This developing device is provided with a gap A1 to the extent of making a toner layer T possible to be held between the photoreceptor drum 1 and the developing roller 3, to the extent of the thickness being the same as the toner layer T formed on a periphery of the developing roller 3, and preventing the developing roller 3 from being intruded into the photoreceptor drum 1, between the photoreceptor drum 1 and the developing roller 3. |
