A sheet conveyor, including: a shaft defining an axis that extends in a first direction; an arm pivotable about the axis; a supply roller provided on the arm and configured to supply a sheet; a first frame formed of metal and supporting the shaft; a first conveyance roller configured to covey the sheet supplied from the supply roller; and a second frame formed of metal and supporting the first conveyance roller, wherein the second frame includes (a) a contact plate portion shaped like a plate and having a contact surface that is held in contact with the first frame and (b) a wall portion extending from the contact plate portion in a direction intersecting the contact surface, and wherein the second frame is coupled at the contact plate portion thereof to the first frame.