Patent ID: 9632457
Date: 2017-04-25
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: an image forming portion configured to form a toner image; a feeding portion configured to feed toner collected in said image forming portion; a collection container connectable with and disconnectable from said feeding portion and configured to accumulate the collected toner entering through an opening of said feeding portion; a shutter provided on said feeding portion and movable in a direction crossing with a direction of connection with said collection container, said shutter being capable of opening and closing said opening; an urging member configured to urge said shutter in a closing direction; a drive receiving portion provided on said shutter and configured to receive a driving force from said collection container in a process of connecting said collection container to said feeding portion; and a drive applying portion provided on said collection container and contactable to said drive receiving portion in the process of connecting said collection container to said feeding portion to apply a driving force for moving said shutter in an opening direction against a force applied by said urging member, wherein one of said drive applying portion and said drive receiving portion includes a first contact path contactable to the other portion in the process of connecting said collection container to said feeding portion, and a second contact path contactable to the other portion after said first contact path, and wherein an inclination angle of said second contact path relative to the direction of connecting said collection container to said feeding portion is less than an inclination angle of said first contact path relative to the direction of connecting said collection container to said feeding portion, wherein said first contact path includes a spiral portion provided on a periphery of said feeding portion, and said shutter is rotated by the other portion contacting said spiral portion.