• Code: C8302
• Description: Take-up cooling fan failure
  While the motor is running, the fan lock signal remains HIGH for a predetermined number of times in a row.
• Causes: • Take-up cooling fan (FM1) • DF control board (DFCB)
• Remedy: 1 Check the connector of FM1-DFCB CN9 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check DFCB CN9-9 (LOCK) DF-702 4-C. 4 Replace FM1. 5 DFCB ICP5 conduction check. 6 Replace DFCB.

• Code: C8401
• Description: Data flash failure
  Data flash does not access normally
• Causes: DF control board (DFCB)
• 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 Check the DFCB connector for proper connection and correct as necessary. 3 Rewrite the firmware. 4 Replace DFCB.

• Code: C9401
• Description: Exposure LED lighting failure
  The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment.
• Causes: • LED exposure unit (LA201) • Flat cable • CCD board (CCDB) • Scanner drive board (SCDB) • MFP board (MFPB)
• Remedy: 1 Check the connection between SCDB and LA201, and correct if necessary. 2 Check the connection between SCDB and MFPB, and correct if necessary. 3 Check that the connection between CCDB and MFPB, and correct if necessary. 4 Replace the LED exposure unit. 5 Replace CCDB. 6 SCDB F1 conduction check. 7 Replace SCDB. 8 Replace MFPB.

• Code: C9402
• Description: Exposure LED lighting abnormally
  The average output value of the CCD sensor with the scanner at its standby position is a predetermined value or more at the end of a scan job.
• Causes: • LED exposure unit (LA201) • Flat cable • CCD board (CCDB) • Scanner drive board (SCDB) • MFP board (MFPB)
• Remedy: 1 Check the connection between SCDB and LA201, and correct if necessary. 2 Check the connection between SCDB and MFPB, and correct if necessary. 3 Check that the connection between CCDB and MFPB, and correct if necessary. 4 Replace the LED exposure unit. 5 Replace CCDB. 6 SCDB F1 conduction check. 7 Replace SCDB. 8 Replace MFPB.

• Code: C9403
• Description: CIS LED lighting failure
  At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value.
• Causes: • CIS module (CIS) • DF power supply (DFPU) • Dual scan image processing board (DSIPB) • MFP board (MFPB)
• Remedy: 1 Correct the harness connection between CIS and DSIPB if faulty. 2 Correct the harness connection between CIS and DFPU if faulty. 3 Replace CIS. 4 Replace DFPU. 5 Replace DSIPB. 6 Replace MFPB.

• Code: C9404
• Description: CIS LED lighting abnormally
  After a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value.
• Causes: • CIS module (CIS) • DF power supply (DFPU) • Dual scan image processing board (DSIPB) • MFP board (MFPB)
• Remedy: 1 Correct the harness connection between CIS and DSIPB if faulty. 2 Correct the harness connection between CIS and DFPU if faulty. 3 Replace CIS. 4 Replace DFPU. 5 Replace DSIPB. 6 Replace MFPB.

• Code: CA051
• Description: Standard controller configuration failure
  The controller of the MFP board (MFPB) is faulty.
• Causes: MFP board (MFPB)
• Remedy: 1 Check to see if the following setting has been correctly made: [Service Mode] - [System 2] - [Image Controller Setting]. If changing the setting, turn OFF the main power switch and turn it ON again after 10 seconds or more. 2 Check the connectors of the MFP board (MFPB) for proper connection and correct as necessary. 3 Replace MFPB.

• Code: CA052
• Description: Controller hardware error
  A controller hardware error is detected in the network I/F.
• Causes: MFP board (MFPB)
• Remedy: 1 Check to see if the following setting has been correctly made: [Service Mode] - [System 2] - [Image Controller Setting]. If changing the setting, turn OFF the main power switch and turn it ON again after 10 seconds or more. 2 Check the connectors of the MFP board (MFPB) for proper connection and correct as necessary. 3 Replace MFPB.