| 摘要 |
PROBLEM TO BE SOLVED: To efficiently reutilize recovery toner without deteriorating image quality by arranging a branching means in the path of a transporting means transporting the mixed gas of the recovered and sent-out recovery toner and supplied air. SOLUTION: A screw pump means 1 is provided with a recovery toner path 1d receiving the supply of the air from an air supply means 2 and sending out the mixed gas of the recovery toner and the air in order to making the sent-out toner flow. Then, one end side of the recovery toner transporting pipe (toner transporting path 3a) of the transporting means 3 transporting the recovery toner is connected to the path 1d. Besides, the branching means 4 is arranged in the transporting path of the recovery toner transporting pipe of the transporting means and the toner transporting path 3a is branched in two directions through the branching part 4a thereof. Then, one toner transporting path 3a1 is connected to the toner replenishment part 11a of a developing means 11 and the other toner transporting path 3a2 is connected to a waste toner tank 22. By arranging the branching means 4 in such a way, the recovery toner is transported. |
