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C5501 (bizhub C287/C227)

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Contents

Trouble typeC5501: AC signal abnormality
RankC
Trouble detection conditionThe zero cross signal is not input during fusing phase control.
Trouble isolation
Relevant electrical parts-Fusing unit
-DC power supply (DCPU)
-MFP board (MFPB)

 Procedure

  1. Check the fusing unit for correct installation (whether it is secured in position).
  2. Check the connector between the fusing unit-relay CN3-DCPU CN002 for proper connection and correct as necessary.
  3. Check the connector between DCPU CN007-MFPB CN2E for proper connection and correct as necessary.
  4. Replace the fusing unit. (Part# A797R70211)
  5. MFPB F1E conduction check
  6. Replace MFPB. (Part# A797H02118)
  7. Replace DCPU. (Part# A797R70800)

K.3.12.6 (Link to the Field Service Manual)

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