C720D (bizhub 4700i)

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Trouble typeC720D: ADU transport clutch failure
RankC
Trouble detection conditionAfter starting the clutch, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts-ADU transport clutch (CL5)
-Base board (BASEB)

Procedure

  1. Check the connector between CL5-relay CN47-BASEB CN23E for proper connection and correct as necessary.
  2. Check the connector of CL5 for proper drive coupling and correct as necessary.
  3. CL5 conduction check
    • Control signal: BASEB CN23E-12 (ON)
    • Location of electrical component: 9-K
  4. Replace CL5. (Part# A7AHM20501)
  5. Replace BASEB. (Part# ACTAH02014)

(Link to the Field Service Manual)