Error codes konica minolta

Code: C40A1 ... C40C5
Description:
• C40A1: Mechanical controller sub-CPU communication error • C40A2: Mechanical controller PF communication data error • C40A3: Mechanical controller PF transmission timeout • C40A4: Mechanical controller PF communication pulse error • C40C3: CTL PF transmission timeout 1 • C40C5: CTL PF transmission timeout 2
A CPU communication error is detected.
Causes:
MFP board (MFPB)
Remedy:
1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2. Rewrite the firmware. 3. MFPB F2E conduction check 4. Replace MFPB.