• Code: C-D020
• Description: Hard disk verification error. After removal of temporary data from hard disk, error was detected during verification.
• Causes: Overall control board (OACB) Image controller firmware Hard disk /1 (HD-510)

• Code: C-D101
• Description: Tandem communication error.
• Causes: Overall control board (OACB)

• Code: C-D102
• Description: Tandem image communication error.
• Causes: Overall control board (OACB)

• Code: C-D201
• Description: Overall control board (OACB) detects the CPU cooling fan (FM22) locked.
• Causes: Overall control board (OACB) CPU cooling fan (FM22)

• Code: C-D202
• Description: Overall control board (OACB) detects the HDD cooling fan (FM24) locked.
• Causes: Overall control board (OACB) HDD cooling fan (FM24)

• Code: C-D204
• Description: The lock of the overall control board cooling fan (FM23) is detected on the overall control board (OACB).
• Causes: Overall control board (OACB) Overall control board cooling fan (FM23)

• Code: C-D301
• Description: The CF card checksum is abnormal.
• Causes: Overall control board (OACB) CF card (CF)

• Code: C-D302
• Description: The management of CF card is deleted.
• Causes: Overall control board (OACB) CF card (CF)