• Code: C6911
• Description: DSC board mount failure 2
  <When DF-701 is installed> When MFP detects that DSC board/2 (back side) is not properly installed.
• Remedy: 1 Correct the harness connection of DSCB/2 if faulty. 2 Correct the harness connection of DSIPB if faulty. 3 Replace DSCB/2. 4 Replace DSIPB. 5 Replace MFPB.

• Code: C6912
• Description: DSC Bus check NG2-1
  <When DF-701 is installed> When MFP detects that DSC board/2 (back side) is not properly installed.
• Remedy: 1 Correct the harness connection of DSCB/2 if faulty. 2 Correct the harness connection of DSIPB if faulty. 3 Replace DSCB/2. 4 Replace DSIPB. 5 Replace MFPB.

• Code: C6913
• Description: DSC Bus check NG2-2
  <When DF-701 is installed> When MFP detects that DSC board/2 (back side) is not properly installed.
• Remedy: 1 Correct the harness connection of DSCB/2 if faulty. 2 Correct the harness connection of DSIPB if faulty. 3 Replace DSCB/2. 4 Replace DSIPB. 5 Replace MFPB.

• Code: C6F01
• Description: Scanner sequence trouble 1
  The original transport interval becomes shorter than the predetermined value due to an original transport control error in original reading in DF.
• Remedy: 1 Correct the harness connection between main body and DF if faulty. 2 Replace DFCB (DF-624/DF-701). 3 Replace MFPB.

• Code: C8101
• Description: Before reading pressure welding alienation mechanism
  <When DF-624 is installed> • During a pressure motion being performed, the document reading sensor (PS4) output does not change from H to L. • During a retraction motion being performed, the document reading sensor (PS4) output does not change from L to H.
  <When DF-701 is installed> • During a pressure motion being performed, the document reading sensor (PS6) output does not change from H to L. • During a retraction motion being performed, the document reading sensor (PS6) output does not change from L to H.
• Remedy: When DF-624 is installed: 1 Check the connector between M5-DFCB J18 for proper connection and correct as necessary. 2 Check the connector of M5 for proper drive coupling, and correct as necessary. 3 Check the connector between PS4-DFCB J10 for proper connection and correct as necessary. 4 PS4 I/O check, sensor check DFCB J10-3 (ON) DF-624 2-G. 5 M5 operation check DFCB J18-4 to 5 DF-624 2-G. 6 Replace M5. 7 FSCB F8 conduction check. 8 Replace DFCB.
  When DF-701 is installed: 1 Check the connector between M4-DFCB J18 for proper connection and correct as necessary. 2 Check the connector of M4 for proper drive coupling, and correct as necessary. 3 Check the connector between PS6-DFCB J10 for proper connection and correct as necessary. 4 PS6 I/O check, sensor check DFCB J10-3 (ON) DF-701 2-G. 5 M4 operation check DFCB J18-4 to 5 DF-701 1-G. 6 Replace M4. 7 FSCB F8 conduction check. 8 Replace DFCB.

• Code: C8107
• Description: Glass cleaning mechanism trouble
  <When DF-624 is installed> The document reading glass cleaning sensor (PS12) is not turned ON after the set period of time has elapsed after the glass cleaning motor (M4) is turned ON.
  <When DF-701 is installed> The document reading glass cleaning sensor (PS13) is not turned ON after the set period of time has elapsed after the document reading glass cleaning motor (M6) is turned ON.
• Remedy: When DF-624 is installed: 1 Check the connector between M4-DFCB J8 for proper connection and correct as necessary. 2 Check the connector of M4 for proper drive coupling, and correct as necessary. 3 Check the connector between PS12-DFCB J15 for proper connection and correct as necessary. 4 PS12 I/O check, sensor check DFCB J15-5 (ON) DF-624 3-G. 5 M4 operation check DFCB J8-1 to 4 DF-624 1 to 2-B. 6 Replace M4. 7 Replace DFCB.
  When DF-701 is installed: 1 Check the connector between M6-DFCB J8 for proper connection and correct as necessary. 2 Check the connector of M6 for proper drive coupling, and correct as necessary. 3 Check the connector between PS13-DFCB J15 for proper connection and correct as necessary. 4 PS13 I/O check, sensor check DFCB J15-5 (ON) DF-701 3-G. 5 M6 operation check DFCB J8-1 to 4 DF-701 1-B. 6 Replace M6. 7 Replace DFCB.

• Code: C8302
• Description: Cooling fan trouble
  <When DF-624 is installed> <When DF-701 is installed> • The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is spinning. • The lock signal continues to detect L during a given time while the cooling fan (FM1) is during halts.
• Remedy: When DF-624 is installed: 1 Check the connector between FM1-DFCB J16 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check DFCB J16-3 (ON) DF-624 3-B 4 Replace FM1. 5 DFCB F6 conduction check. 6 Replace DFCB.
  When DF-701 is installed: 1 Check the connector between FM1-DFCB J16 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check DFCB J16-3 (ON) DF-701 7-G. 4 Replace FM1. 5 DFCB F6 conduction check. 6 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.
• Remedy: 1 Check the connection between SCDB-LU201, and correct if necessary. 2 Check the connector between SCDB PJ1-PRCB CN43 for proper connection and correct as necessary. 3 Check the connector between CCDB PJ3-MFPB PJ01 for proper connection and correct as necessary. 4 Replace the LED exposure unit. 5 Replace CCDB. 6 Replace SCDB. 7 Replace PRCB. 8 Replace MFPB.