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C3737 (bizhub 360i/300i)

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Trouble typeC3737: Fusing abnormally high temperature detection hard protector (Center of the heating roller)
RankA
Trouble detection conditionC3737: An abnormally high temperature is detected on the hard protector circuit (center of the heating roller).
Trouble isolation–
Relevant electrical parts-Fusing unit

-C3737: Heating roller temperature sensor (TEMS)

-CPU board (CPUB)
-Base board (BASEB)

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 CN95-BASEB CN4E for proper connection and correct as necessary.
  4. Check CPUB for proper installation and correct as necessary.
  5. Replace the fusing unit. (Part# AA2JR70311)
  6. Replace CPUB. (Part# AC77H02P02)
  7. Replace BASEB. (Part# AC77H02101)

(Link to the Field Service Manual)

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