C2A11, C2A12, C2A13, C2A14 (bizhub C750i)

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Contents

Trouble typeC2A11: Drum unit/C new release failure

C2A12: Drum unit/M new release failure

C2A13: Drum unit/Y new release failure

C2A14: Drum unit/K new release failure
RankB
Trouble detection conditionThe status with the new unit is not cleared after the new drum unit is set.
Trouble isolation–
Relevant electrical parts-Drum unit/C,M,Y,K
-Expansion control board (EXCB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Clean the connection between the drum unit and the main body if dirty.
  2. Reinstall the drum unit.
  3. Check the connector between the drum unit/C-relay CN47-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A11)
  4. Check the connector between the drum unit/M-relay CN46-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A12)
  5. Check the connector between the drum unit/Y-relay CN45-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A13)
  6. Check the connector between the drum unit/K-relay CN48-relay CN149-EXCB CN4EX for proper connection and correct as necessary. (C2A14)
  7. Check the connector between EXCB CN1EX-BASEB CN11E for proper connection and correct as necessary.
  8. Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.
  9. Check CPUB for proper installation and correct as necessary.
  10. Replace the corresponding drum unit.
    (CMY ACV80TE / K Part# ACV80RE)
  11. Replace EXCB. (Part# AA7NH00500)
  12. Replace CPUB. (Part# ACKNH02P03)
  13. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)