An accommodating container for accommodating a developer collected from an image bearing member, comprising: a feeding member for feeding the developer in a developer feeding direction and provided in said accommodating container; a first wall member (72c1, 372c1) for partitioning inside of said accommodating container, the first wall member (72c1, 372c1) being provided in said accommodating container and extending along a first direction crossing the developer feeding direction of said feeding member and being inclined toward a downstream side of said feeding member with respect to the developer feeding direction; and a second wall member (72c2, 372c2) for partitioning inside of said accommodating container, the second wall member (72c2, 372c2) being provided in said accommodating container in a downstream side of the first wall member (72c1, 372c1) with respect to the developer feeding direction, the second wall member (72c2, 372c2) extending along a second direction crossing the developer feeding direction of said feeding member and being inclined toward a downstream side of said feeding member with respect to the developer feeding direction, wherein said first wall member (72c1, 372c1) is contactable to the developer fed in the developer feeding direction and said second wall member (72c2, 372c2) is contactable to the developer fed in the developer feeding direction, characterized in that the first wall member (72c1, 372c1) is provided with a first groove, and the second wall member (72c2, 372c2) is provided with a second groove, and the feeding member crosses the first wall member (72c1, 372c1) at a position where the first groove is disposed such that a gap is formed between the feeding member and the first wall member (72c1, 372c1), and the feeding member crosses the second wall member (72c2, 372c2) at a position where the second groove is disposed such that a gap is formed between the feeding member and the second wall member (72c2, 372c2). a feeding member for feeding the developer in a developer feeding direction and provided in said accommodating container; a first wall member (72c1, 372c1) for partitioning inside of said accommodating container, the first wall member (72c1, 372c1) being provided in said accommodating container and extending along a first direction crossing the developer feeding direction of said feeding member and being inclined toward a downstream side of said feeding member with respect to the developer feeding direction; and a second wall member (72c2, 372c2) for partitioning inside of said accommodating container, the second wall member (72c2, 372c2) being provided in said accommodating container in a downstream side of the first wall member (72c1, 372c1) with respect to the developer feeding direction, the second wall member (72c2, 372c2) extending along a second direction crossing the developer feeding direction of said feeding member and being inclined toward a downstream side of said feeding member with respect to the developer feeding direction, wherein said first wall member (72c1, 372c1) is contactable to the developer fed in the developer feeding direction and said second wall member (72c2, 372c2) is contactable to the developer fed in the developer feeding direction, characterized in that the first wall member (72c1, 372c1) is provided with a first groove, and the second wall member (72c2, 372c2) is provided with a second groove, and the feeding member crosses the first wall member (72c1, 372c1) at a position where the first groove is disposed such that a gap is formed between the feeding member and the first wall member (72c1, 372c1), and the feeding member crosses the second wall member (72c2, 372c2) at a position where the second groove is disposed such that a gap is formed between the feeding member and the second wall member (72c2, 372c2).