Patent ID: 9535368
Date: 2017-01-03
CPC Classifications: G03G

Claim:
1. A toner supply device comprising: a toner case configured to contain toner; and a mounting member on which the toner case is detachably mounted, wherein the mounting member is an intermediate tank connecting the toner container to a developing unit, the mounting member includes: the toner holding portion includes: a toner supply portion disposed at an end, in an extension direction, of a lower wall of the toner holding portion and configured to guide the toner held inside the toner holding portion to the developing unit; and a conveying member provided inside the toner holding portion and configured to convey the toner held inside the toner holding portion toward the toner supply portion, wherein the toner holding portion is configured to be able to lift and lower by being supported so as to be able to move in an up-down direction together with the toner supply portion and the conveying member in a state where the lower portion of the toner flowing portion is connected to an outer circumferential surface of the toner holding portion, and a circumferential surface of a lower part of the toner flowing portion is configured to be able to stretch and contract in the up-down direction in correspondence with lifting and lowering of the toner holding portion when the toner holding portion lifts and lowers with respect to the toner receiving portion.