| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure a predetermined supply of developer per unit time until just before a container body becomes empty. <P>SOLUTION: The developer supply container includes: a container body 30 configured to store toner T therein; a supply port 31 provided on a base of the container body 30 so as to supply the toner T; a circular-arc swollen part 35 provided to include the supply port 31 along the base in the container body 30; and a conveying screw 50 disposed in the circular-arc swollen part 35 and conveying the toner T toward the supply port 31. The conveying screw 50 includes a screw shaft 51 disposed along the circular-arc swollen part 35 and a spiral fin 52 installed concentrically on the screw shaft 51, wherein diameter of the spiral fin 52 in a first region R1 is set smaller than that of the spiral fin 52 in a second region R2. Thus, toner conveying capability in the first region R1 is lower than that in the second region R2. <P>COPYRIGHT: (C)2011,JPO&INPIT |
