| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which: when the size of a container frame body is reduced, the area of a stationary surface of a sheet member that prevents leakage of toner in the container frame body is reduced; and the sheet member is bent so that a convex shape is formed in the vicinity of a central part in the longitudinal direction, and is fixed to the stationary surface; and therefore, when the area of the stationary surface is reduced, both ends of the sheet member protrude from the stationary surface in a direction perpendicular to the longitudinal direction, and protruded portions may be separated by being caught by a user.SOLUTION: Only both ends of a sheet member on a stationary surface are spread on an opposite side to a convex direction of the sheet member; and therefore, a shape of the stationary surface is provided in which the sheet member does not protrude from the stationary surface. |
