Image forming agent storage device and image forming apparatus

摘要

An image forming agent storage device includes an image forming agent storage body that is inserted into an insertion part, an opening-and-closing member, an engagement mechanism and an engagement release prevention mechanism. The image forming agent storage body is formed with a discharge port. The engagement mechanism includes an engagement part being provided in the image forming agent storage body and an engaged part being provided in the opening-and-closing member and being capable of engaging with the engagement part. The engagement release prevention mechanism prevents that a state where the engagement part and the engaged part can engage with each other is released due to an event that a front side of the opening-and-closing member moves relative to the image forming agent storage body so as to slant in a direction away from a position where the engagement part and the engaged part are provided.