• Code: C151
• Description: ROM contents error upon startup (MSC) A fault is detected in a sequence of ROM contents check of the MFPB during starting.
• Causes: MFP board (MFPB)
• Remedy: 1 Check the ROM version. 2 Rewrite the firmware. 3 Replace MFPB.

• Code: C161
• Description: Firmware update error A firmware updating sequence is not normally terminated.
• Causes: MFP board (MFPB)
• Remedy: 1 Check the cable used for updating the firmware for proper connection and correct any faulty connection as necessary. 2 Check the firmware updating file; if the file is not correct, update the firmware again. 3 Check the firmware updating procedure; if the procedure is not correct, update the firmware again. 4 Update the firmware again. 5 Check the MFPB connector for proper connection and correct any faulty connection as necessary. 6 Replace MFPB.

• Code: D004
• Description: Hard disk access error (connection failure) Unable to communicate between the hard disk and MFP board (MFPB).
• Causes: • MFP board (MFPB) • HDD (HDD)
• Remedy: 1 Check the connector between hard disk-MFPB CN5, CN13 for proper connection and correct as necessary. 2 Reinstall the hard disk. 3 Replace the hard disk. 4 Replace MFPB.

• Code: D091
• Description: Hard disk full error The area made available as a user area is full during access to the hard disk.
• Causes: • MFP board (MFPB) • HDD (HDD)
• Remedy: 1 Set [Admin Settings] -> [Printer Settings] -> [HOLD JOB TIMEOUT] to [Disable]. 2 Check the connector between hard disk-MFPB CN5, CN13 for proper connection and correct as necessary. 3 Format the hard disk. 4 Replace the hard disk. 5 Replace MFPB.

• Code: D092
• Description: No hard disk (found during a disk check) The hard disk is not mounted.
• Causes: HDD
• Remedy: 1 Install and format the hard disk.

• Code: D093
• Description: Wrong hard disk (found during a disk check) • A hard disk intended for another model is mounted. • The hard disk capacity is short.
• Causes: HDD
• Remedy: 1 Replace the hard disk. 2 Format hard disk.

• Code: D094
• Description: Hard disk check disk error When the power switch ON, the hard disk fails to be checked.
• Causes: HDD
• Remedy: 1 Replace the hard disk. 2 Format the hard disk.

• Code: D095
• Description: Hard disk recovered (requiring reboot) When the power switch ON, the hard disk fails to be recovered.
• Causes: HDD
• Remedy: 1 Turn OFF/ON the power switch. 2 Replace the hard disk. 3 Format the hard disk.