| 摘要 |
PURPOSE:To supplement toner smoothly without any waste by breaking a mouth part thin film when the expansible part of a drum part is pressed and contracted by a projection part provided to the internal wall. CONSTITUTION:When the toner is supplemented to a developing unit hopper B, a cartridge opening part 1 is connected to the supplementation opening part 7 of the developing unit hopper without causing toner scatter. Then when the cartridge A applies a force F to the cartridge bottom part 5 from above by using the expansible part of the drum part and then the inside air is compressed to press the internal toner 3 out of the cartridge A smoothly through the compressing operation of the cartridge A with the compressed air, so that the toner is scattered in the wide range in the hopper B. Consequently, the toner is dispersed and supplemented smoothly without any waste. |
