Sieving device, sieving device for developing device, and powder-charging device

A sieving device for developing device comprising:

• a sieve main body comprising a hollow cylindrical body, a filter disposed at a bottom portion of the hollow cylindrical body, and a blade configured to rotate in close proximity to the filter around a rotation axis thereof crossing the filter to thereby stir toner supplied to the hollow cylindrical body;
• and
• a feeding unit connected to a developing device for developing a latent electrostatic image and configured to feed, to the developing device, the toner which has passed through the filter by rotation of the blade.

A powder-charging device comprising:

• a sieve main body comprising a hollow cylindrical body, a filter disposed at a bottom portion of the hollow cylindrical body, and a blade configured to rotate in close proximity to the filter around a rotation axis thereof crossing the filter to thereby stir powder supplied to the hollow cylindrical body;
• and
• a feeding unit configured to feed, to a predetermined container, the powder which has passed through the filter by rotation of the blade.