List of Error Messages 4-9Troubleshooting4Staple jamCause A staple jam may have occurred in the Finisher-U2.Remedy Check if a staple jam has occurred. (See Chapter 7, “Troubleshooting,” in theReference Guide.)This func. requires Optional equipment.Cause The SCAN key has been pressed when the machine is not equipped with theoptional network kit.Remedy To make the scanning function available, the optional network kit is required.This size cannot be stapledCause The machine cannot staple the printouts because the selected paper size isunavailable for stapling.Remedy Use the suitable paper size for stapling. (See Chapter 2, “AdvancedOperations,” in the Copying Guide.)This size cannot be offsetCause The machine cannot offset the printouts because the selected paper size isunavailable for offset copying.Remedy Use the suitable paper size for offset copying. (See Chapter 2, “AdvancedOperations,” in the Copying Guide.)Toner low/Prepare new tonerCause Toner is running out.Remedy Rock the toner cartridge to redistribute the toner evenly inside the cartridge. Ifthe message persists, install a new cartridge.Tray A full/Remove paperCause Tray A is full of paper.Remedy Remove the prints from Tray A. (See Chapter 5, “Optional Equipment,” in theReference Guide.)