C3425 (bizhub C287/C227)

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Trouble typeC3425: Fusing warm-up trouble
RankA
Trouble detection condition-Detected temperature of the heating roller temperature sensor (TEMS) does not go up a given range of temperature even after a lapse of given period of time at warm up.
-The temperature detected by the heating roller temperature sensor (TEMS) does not shift from the pre-standby state or the post-print color printing-enable wait state even after the lapse of a predetermined period of time after the completion of warm-up.
Trouble isolation–
Relevant electrical parts-Fusing unit
-Heating roller temperature sensor (TEMS)
-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 open/close operation of the right door.
  3. Check the connector between the fusing unit-relay CN3-DCPU CN002 for proper connection and correct as necessary.
  4. Check the connector between the fusing unit-relay CN4-MFPB CN16E for proper connection and correct as necessary.
  5. Replace the fusing unit. (Part# A797R70211)
  6. Replace MFPB. (Part# A797H02118)
  7. Replace DCPU. (Part# A797R70800)

K.3.10.3 (Link to the Field Service Manual)