Code: C-1109 Classification: FS: FS-532 abnormality Cause: The stapler home sensor (PS40) does not turn ON within a specified period of time after the stapler motor (M31) starts operation. Measures to take when alert occurs: The main body and the option stop immediately. Estimated abnormal parts: FNS control board (FNSCB) Stapler unit Correction: Turn OFF/ON the sub power switch (SW2) of the main body. Note: The message "Please call service" is displayed on the panel. Solution: Check the connector connection and the wiring between FNSCB and the stapler, and repair it if any abnormality. Replacing the stapler assy. Replace FNSCB.