Patent ID: 8331843

Claim:
A toner recovery unit which is detachably installed to a device body having a plurality of discharge outlets through which toner is discharged, comprising: a storage unit for storing toner; a frame member for forming a discharge passage which connects said discharge outlets to said storage unit; an operating member supported by said frame member in such a manner as to be able to be shifted between a first operating position and a second operating position; a plurality of first opening/closing members provided in such a manner as to correspond to said plurality of discharge outlets respectively, the plurality of first opening/closing members being displaced between opened positions for communicating said plurality of discharge outlets to said discharge passage, and closed positions for not communicating said plurality of discharge outlets to said discharge passage; an engagement member capable to move between an engagement position and an engagement release position and supported at an engagement portion of said device body by engaging with the engagement portion of said device body at the engaging position; and a shift member biasing said engagement member from its said engagement release position to its said engagement position, and also displacing said first opening/closing members from their said closed positions to their said opened positions in conjunction with the shift of said operating member from its said first operating position to its said second operating position.