A professional who tends layboy that automatically stacks, aligns, and records count of paper sheets at discharge end of paper cutters, printing presses, and ruling and paper-making machines.

• Inspects sheets as they fall into layboy for defects, such as spots, holes, wrinkles, cockled edges, and dirt, and discards defective sheets.
• Smooths sheets by hand to eliminate air pockets.
• Stops and starts machine in emergency.
• May fan sheets or turn up corners to facilitate inspection.
• May count sheets and insert tabs to mark off reams if layboy does not have automatic counter and tabber.
• May align sheets by tapping edges by hand.