Causes: Input after fan lock detection signal continues for approx. 10 sec. or longer. Cause: Duplex fan defect, DC controller PCB defect
Remedy: - Replace duplex fan - Replace DC controller PCB
Code: E840
Description: Release mechanism abnormality
Causes: Mechanism does not reach home position (engaged) after 2.5 sec. or longer after home position control begins. Cause: Fixing drive assembly defect, fixing release cam defect