C7133 (bizhub C650i/C550i/C450i)

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Trouble typeC7133: Toner supply motor/M failure
RankC
Trouble detection conditionAfter starting the motor, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts-Toner supply motor/M (M8)
-Expansion control board (EXCB)

Procedure

  1. Check the connector between M8-EXCB CN11EX for proper connection and correct as necessary.
  2. Check the connector of M8 for proper drive coupling and correct as necessary.
  3. M8 conduction check.
    • Control signal: EXCB CN11EX-13 to 16
    • Location of electrical component: 16-P
  4. Replace M8. (Part# A7PUM10700)
  5. Replace EXCB. (Part# AA2JH00500)

L.3.14.7 (Link to the Field Service Manual)