C2255 (bizhub C360i/C300i/C250i)

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Trouble typeC2255: Developing motor failure to turn
RankB
Trouble detection conditionC2255: The control circuit detects motor failure to turn while the motor is turning.
Trouble isolation–
Relevant electrical parts• Developing motor (M21)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check the connector between M21-BASEB CN19E for proper connection and correct as necessary.
  2. Check the connector of M21 for proper drive coupling and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. M21 load check
    • Check code: 50
    • Multi code: 1, 4, 5
    • Control signal: BASEB CN19EB-6 to 10
    • Location of electrical component: 2-C
  5. Replace M21. (Part# AA2JM11000)
  6. Replace CPUB. (Part# AA2JH02N06)
  7. Replace BASEB. (Part# AA2JH02005)

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

L.3.8.4 (Link to the Field Service Manual)