• Code: C6903
• Description: DSC Bus check NG1-2
• Remedy: 1 Correct the harness connection of DSC board if faulty. 2 Change DSC board. 3 Change MFPB.

• Code: C6F01
• Description: Scanner sequence trouble 1
  • The original transport interval becomes shorter than the designed value due to an original transport control error in original reading in ADF.
• Remedy: 1 Correct the harness connection between main body and ADF if faulty. 2 Change REYB/SCAN. 3 Change DFCB. 4 Change MFPB.

• Code: C8101
• Description: Before reading pressure welding alienation mechanism
  • During a pressure motion being performed, the read roller sensor (PS6) output does not change from H to L. • During a retraction motion being performed, the read roller sensor (PS6) output does not change from L to H.
• Remedy: 1 Check the connector between M4-DFCB PJ6 for proper connection and correct as necessary. 2 Check the connector between PS6-DFCB PJ6 for proper connection and correct as necessary. 3 Check the connector of M4 for proper drive coupling, and correct as necessary. 4 PS6 I/O check, sensor check DFCB PJ6-3 (ON) DF-617 I-4 to 5 5 M4 operation check DFCB PJ6-5 to 6 DF-617 I-4 6 Change M4. 7 DFCB PS3 conduction check. 8 Change FSCB.

• Code: C8102
• Description: Turn around pressure welding alienation trouble
  • During a pressure motion being performed, the reverse roller sensor (PS7) output does not change from H to L. • During a retraction motion being performed, the reverse roller sensor (PS7) output does not change from L to H.
• Remedy: 1 Check the connector between M5-DFCB PJ5 for proper connection and correct as necessary. 2 Check the connector between PS7-REYB PJ3 for proper connection and correct as necessary. 3 Check the connector of M5 for proper drive coupling, and correct as necessary. 4 PS7 I/O check, sensor check REYB PJ3-3 (ON) DF-617 L-7. 5 DFCB F9 conduction check. 6 M5 operation check DFCB PJ5-10 to 13 DF-617 I-5. 7 Change M5. 8 DFCB PS2 conduction check. 9 Change FSCB.

• Code: C8103
• Description: Lift up mechanism trouble (Upward movement)
  • The lift up upper sensor (PS16) is not turned ON after a lapse of a given time after the lift-up motor (M7) moves up (is turned forward).
• Remedy: 1 Check the connector between M7-DFCB PJ5 for proper connection and correct as necessary. 2 Check the connector between PS16-DFCB PJ11 for proper connection and correct as necessary. 3 Check the connector of M7 for proper drive coupling, and correct as necessary. 4 PS16 I/O check, sensor check DFCB PJ11-3 (ON) DF-617 B to C-7. 5 M7 operation check DFCB PJ5-6 to 9 DF-617 I-5. 6 Change M7. 7 Change DFCB.

• Code: C8106
• Description: Lift up mechanism failure (Downward movement)
  • The lift up lower sensor (PS15) is not turned ON after a lapse of a given time after the lift-up motor (M7) goes down (is turned backward).
• Remedy: 1 Check the connector between M7-DFCB PJ5 for proper connection and correct as necessary. 2 Check the connector between PS15-REYB PJ3 for proper connection and correct as necessary. 3 Check the connector of M7 for proper drive coupling, and correct as necessary. 4 PS15 I/O check, sensor check REYB PJ3-6 (ON) DF-617 L-7. 5 DFCB F9 conduction check. 6 M7 operation check DFCB PJ5-6 to 9 DF-617 I-5. 7 Change M7. 8 DFCB PS1 conduction check. 9 Change DFCB.

• Code: C8107
• Description: Glass cleaning mechanism trouble
  • The glass cleaning sensor (PS21) is not turned ON after the set period of time has elapsed after the glass cleaning motor (M9) is turned ON.
• Remedy: 1 Check the connector between M9-DFCB PJ17 for proper connection and correct as necessary. 2 Check the connector between PS21-DFCB PJ17 for proper connection and correct as necessary. 3 Check the connector of M9 for proper drive coupling, and correct as necessary. 4 PS21 I/O check, sensor check DFCB PJ17-7 (ON) DF-617 I-3. 5 M9 operation check DFCB PJ17-1 to 4 DF-617 I-3. 6 Change M9. 7 Change DFCB.

• Code: C8302
• Description: Cooling fan trouble
  • The lock signal continues to detect H during a given time while the cooling fan (FM1) is spinning • The lock signal continues to detect L during a given time while the cooling fan (FM1) is during halts.
• Remedy: 1 Check the connector between FM1-DFCB PJ7 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check DFCB PJ7-1 (ON) DF-617 B to C-4. 4 Change FM1. 5 DFCB F7 conduction check. 6 Change DFCB.