C5306 (bizhub 558/458)

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Contents

Trouble typeC5306: IH coil cooling fan failure to turn (bizhub 558)
RankB
Trouble detection conditionThe fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Trouble isolation
Relevant electrical parts• IH coil cooling fan (FM7)
• Expansion control board (EXCB)
• MFP board (MFPB)

 Procedure

  1. Check the connector between FM7-relay CN77-EXCB CN3 for proper connection and correct as necessary.
  2. Check the fan for possible overload and correct as necessary.
  3. FM7 operation check
    • Control signal: EXCB CN3-1 (REM), EXCB CN3-3 (LOCK)
    • Location of electrical component: 26-T
  4. Replace FM7. (Part# 9313130051)
  5. Replace EXCB. (Part# A9HGH00501)
  6. MFPB F6E conduction check
  7. Replace MFPB. (558 Part# A9HGH02102 / 458 Part# A9HHH02102)

NOTICE

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.17.3 (Link to the Field Service Manual)