Patent ID: 8006973

Claim:
A replaceable unit comprising: a feeding roller that feeds a sheet from a sheet accommodation portion that accommodates the sheet; a conveyance roller that conveys the sheet fed by the feeding roller downstream in a sheet conveyance direction; a first frame body that supports the feeding roller and the conveyance roller so as to be rotatable; and a second frame body that supports the first frame body so as to be movable and is removably mounted at a position at which the feeding roller can touch against the sheet accommodated at the sheet accommodation portion, wherein a protruding piece, having a positioning hole formed therein, is provided at each side of the second frame body at a downstream side in the sheet conveyance direction of the conveyance roller, and wherein the protruding piece is adapted to have a projection, which is formed at a sheet conveyance device main body, inserted in the positioning hole, whereby the second frame body can move in the sheet conveyance direction.