Toner container capable of facilitating cleaning task before reuse, image forming apparatus, and manufacturing method of toner container

A manufacturing method of a toner container including a cylindrical portion formed in a cylindrical shape elongated in an insertion direction with respect to an image forming apparatus, an opening portion provided at an outer circumferential portion of the cylindrical portion, a shutter portion provided to be movable between a cover position at which the shutter portion covers the opening portion on an outer side of the cylindrical portion and an evacuation position evacuated from the cover position toward an upstream side of the insertion direction, a compression coil spring which encloses an outer circumference of the cylindrical portion at a position more on the upstream side of the insertion direction than the shutter portion and biases the shutter portion in the insertion direction, a lock portion which locks the shutter portion at the evacuation position, and a sealing portion which is provided along an edge portion of the opening portion and fills a gap between the shutter portion arranged at the cover position and the opening portion, the manufacturing method comprising:

• a first step of attaching the compression coil spring to the cylindrical portion;
• a second step of attaching the shutter portion after the first step;
• a third step of locking the shutter portion at the evacuation position using the lock portion;
• and
• a fourth step of attaching the sealing portion after the third step.