Patent ID: 8467700
Filing Date: 2013-06-18
Classification: G03G

Abstract:
1. A cartridge detachably mountable in a receiving area of an image forming apparatus in a first direction, the receiving area being partitioned by a first partition surface and a second partition surface opposing each other in an opposing direction, the first direction being orthogonal to the opposing direction, the cartridge comprising: a case which is long in the opposing direction and is configured to store developer, the case including a first side surface and a second side surface in the opposing direction, wherein the case has a first part and a second part, the first part being positioned at the first side surface and at a first junction part between an upper portion and a lower portion of the case, and the second part being positioned at the second side surface and at a second junction part between the upper portion and the lower portion of the case, wherein the first side surface extends from the first part to a bottom of the lower portion of the case and the second side surface extends from the second part to the bottom of the lower portion of the case, wherein an entire outline of the first side surface is provided on or inside a first circular arc as seen in a second direction orthogonal to the opposing direction and the first direction, the first circular arc having: wherein an entire outline of the second side surface is provided on or inside a second circular arc as seen in the second direction, the second circular arc having: