C255C (bizhub 958/808)

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Trouble typeC255C: Black TCR sensor adjustment failure
RankB
Trouble detection conditionTCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value.
Trouble isolation–
Relevant electrical parts• Developing unit
• MFP board (MFPB)

 Procedure

  1. Reinstall developing unit.
  2. Replace the developing unit. (Part# A8H403D)
  3. Replace MFPB. (Part# A796H02003)

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

K.3.8.15 (Link to the Field Service Manual)