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C2412 (bizhub C650i/C550i/C450i)

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Trouble typeC2412: Developing unit/M new article release
RankB
Trouble detection conditionThe status with the new unit is not cleared after the new developing unit is set.
Trouble isolation
Relevant electrical parts-Developing unit/C,M,Y,K
-Expansion control board (EXCB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Reinstall the developing unit.
  2. Check the connector between the developing unit/C-relay CN251-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2411)
  3. Check the connector between the developing unit/M-relay CN250-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2412)
  4. Check the connector between the developing unit/Y-relay CN249-relay CN248-EXCB CN6EX for proper connection and correct as necessary. (C2413)
  5. Check the connector between the developing unit/K-relay CN252-relay CN25-EXCB CN4EX for proper connection and correct as necessary. (C2414)
  6. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary.
  7. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.
  8. Check CPUB for proper installation and correct as necessary.
  9. Replace the corresponding developing unit. (Part# ACV80ED)
  10. Replace EXCB. (Part# AA2JH00500)
  11. Replace CPUB. (C450i Part# AA7RH02P02 / C550i Part# AA7PH02P01 / C650i Part# AA7NH02P03)
  12. Replace BASEB. (Part# AA2JH02005)

L.3.9.8 (Link to the Field Service Manual)

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