• Code: C-6714
• Description: While executing the APC, the execution of the MPC is attempted.
• Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

• Code: C-6716
• Description: When a clock for the image write is abnormal, the sub scan beam interval is attempted to be corrected.
• Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

• Code: C-6717
• Description: Sequentially shot page area abnormality. Due to an image area abnormality on the memory, images cannot be developed on the memory.
• Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Overall control board (OACB)

• Code: C-6718
• Description: The PVV is turned ON before the initial APC start processing is completed.
• Causes: Confirmation of the wiring harness and the connector Reinstalling firmware Write unit Overall control board (OACB) Printer control board (PRCB)

• Code: C-6719
• Description: The scan operation starts before the original skew adjustment is terminated. (The skew adjustment is too late.)
• Causes: Confirming the DF operation Confirmation of the wiring harness and the connector Original skew sensor /Rr (PS311: DF) Original skew sensor /Rr (PS312: DF) Overall control board (OACB)

• Code: C-6721
• Description: The AGC is retried due to the decreased light volume of the exposure lamp. However, no error occurs.
• Causes: Confirmation of the wiring harness and the connector Exposure lamp (L4) L4 inverter (L4INVB) Scanner drive board (SDB)

• Code: C-6723
• Description: Due to the paper skew correction amount being in excess of the permissible limit, the print is made with the leading edge shifted.
• Causes: Confirming the DF operation Confirmation of the wiring harness and the connector Original skew sensor /Rr (PS311: DF) Original skew sensor /Rr (PS312: DF) Overall control board (OACB)

• Code: C-6801
• Description: A communication error between OACB and OB1 is checked.
• Causes: Confirmation of the wiring harness and the connector Operation board /1 (OB1) Operation board /3 (OB3) Overall control board (OACB)