| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent leakage of toner from a toner supply port when a toner container is detached from an image forming apparatus and when the toner container is attached to the image forming apparatus. <P>SOLUTION: A developing device of the image forming apparatus is provided with toner flow rate altering means by which the flow rate of toner in an area directly below a toner supply port in a passage guiding toner from a toner supply port 3h to a developing roller is made greater than that of toner in other areas in the passage. Also, the developing device is provided with a first shutter S3 that slides in the axial direction of the developing roller of the image forming apparatus so as to open or close the toner supply port 3h. The toner container is provided with a second shutter S2 that slides in the axial direction of the developing roller of the image forming apparatus so as to open or close a toner discharge port 2h. The first and second shutters move in an interlocking manner, so that the lowermost face of the first shutter S3 is positioned higher than the uppermost face of the second shutter S2 and the toner supply port. <P>COPYRIGHT: (C)2012,JPO&INPIT |
