| 摘要 |
PURPOSE:To clean the inside of an container body by providing a discharge opening for waste toner and an air feed opening at proper positions of the container body, and then easily ad speedily discharging the waste toner without any negative pressure even while the container body is used in a sealed state and blowing air in from the air feeding opening. CONSTITUTION:The waste toner casing 3 is provided with the discharge opening 121 and air feed opening 122. A translucent film 125 is provided at the air feeding opening 122 and passes air, but does not pass toner, so a cap is not necessary. When the waster toner is discharged from the water discharge opening 121 by natural convection or suction at a proper period because of the repetitive use of the container body, negative pressure is produced in the casing 3 as the toner is discharged, but air s supplemented correspondingly from the air feed opening 122, so the toner can easily and speedily be discharged. At this time, the air is blown in forcibly from the air feeding opening and blows away toner even tone sticking in the casing to accelerate the discharging and also clean the inside. |
