C3732 (bizhub C759/C659)

Posted
ByAdministrator Administrator
You are here:

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

Contents

Trouble typeC3732: Fusing abnormally high temperature detection hard protector (Edge of the heating roller)
RankA
Trouble detection condition-An abnormally high temperature is detected on the hard protector circuit (edge of the heating roller).
-An abnormally high temperature is detected on the hard protector circuit (middle of the heating roller).
-An abnormally high temperature is detected on the hard protector circuit (center of the heating roller).
Trouble isolation–
Relevant electrical parts-Fusing unit
-Heating roller temperature sensor/2 (TEMS2)
-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 upper right door.
  3. Check the connector between the fusing unit-relay CN261-MFPB CN21E for proper connection and correct or change as necessary.
  4. Check the connector between TEMS2, TEMS3-relay CN512-MFPB CN31E for proper connection and correct as necessary.
  5. Replace the fusing unit. (Part# A8JER70222)
  6. Replace TEMS2, TEMS3. (Part# A796M50000)
  7. Replace MFPB. (Part# A8JEH02002)

L.3.10.10 (Link to the Field Service Manual)