Patent ID: 7995949

Claim:
A powder conveyance device, comprising: a first housing including a first powder conveyance path; and a second housing including a second powder conveyance path, the first housing and the second housing being detachably attached to each other; wherein a projection portion is provided in the first housing, the projection portion having adjacent holes in communication with the first powder conveyance path, the projection portion having a partition wall dividing said holes, a hole portion is provided in the second housing, the hole portion being in communication with the second powder conveyance path, when attaching the first housing to the second housing, the projection portion is inserted into the hole portion, and when detaching the first housing from the second housing, the projection portion is drawn out of the hole portion, further comprising: a plurality of combinations of an insertion axle and an insertion hole the insertion axle being insertable in the insertion hole when the projection portion is inserted into the hole portion, wherein in each of the combinations, the insertion axle is provided on an inner side of one of the hole of the projection portion and the hole portion, and the insertion hole is provided on an inner side of the other one of the hole of the projection portion and the hole portion.