| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming device excelling in shutter operational properties, sealing properties in toner supply and durability of a sealing member. <P>SOLUTION: The image forming device has a developing unit 14 provided movably to a device body; a toner conveyance pipe 51 for supplying toner to the developing unit 14; a shutter 70 which has a shielding part 70b and an opening part 70a and moves so as to open/close a toner supply port of the toner conveyance pipe 51; and the sealing member 73 which surrounds the opening part 70a and a receiving port. When the developing unit 14 is set at the toner supply position, the opening part 70a is matched with the toner supply port and the receiving port to form a toner supply passage. The toner member 73 is compressed to seal a gap of the toner supply passage. When the developing unit 14 is spaced apart from the toner supply position, the opening part 70a is retracted, the toner supply passage is blocked by the sealing part 70b, and compression of the sealing member 73 is released. The moving locus of the shutter 70 is different from that of the developing unit 14. <P>COPYRIGHT: (C)2010,JPO&INPIT |
