A job separator has a first roller unit and a second roller unit adjacent to the first roller unit. The first roller unit has a first driven roller and a first drive roller, which receive and convey a sheet between them. The second roller unit has a second driven roller and a second drive roller, which also receive and convey a sheet between them. The second drive roller may selectively move between a first position, in which the second drive roller is below the second driven roller, and a second position in which the second drive roller is above the second driven roller. An image processing apparatus has the job separator, a recording unit, an output tray, and a control unit for controlling the second drive roller.