C720B (bizhub C3320i)

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Trouble typeC720B: 1st transfer pressure clutch failure
RankC
Trouble detection conditionAfter starting the clutch, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts-1st transfer pressure clutch (CL1)
-Base board (BASEB)

Procedure

  1. Check the connector between CL1-relay CN13-BASEB CN18E for proper connection and correct as necessary.
  2. Check the connector of CL1 for proper drive coupling and correct as necessary.
  3. CL1 conduction check
    • Control signal: BASEB CN18E-4 (ON)
    • Location of electrical component: 2-C
  4. Replace the main drive unit. (Part# AAJRR71000)
  5. Replace BASEB. (Part# A93EH02007)

L.3.12.7 (Link to the Field Service Manual)