C720A (bizhub C4050i/C3350i)

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Trouble typeC720A: Registration clutch failure
RankC
Trouble detection conditionAfter starting the clutch, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts• Registration clutch (CL4)
• Base board (BASEB)

Procedure

  1. Check the connector between CL4-relay CN45-BASEB CN22E for proper connection and correct as necessary.
  2. Check the connector of CL4 for proper drive coupling and correct as necessary.
  3. CL4 conduction check
    • Control signal: BASEB CN22EA-3 (ON)
    • Location of electrical component: 12-C
  4. Replace CL4. (Part# A7AHM20501)
  5. Replace BASEB. (Part# A93EH02007)

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

L.3.12.6 (Link to the Field Service Manual)