C2A21, C2A22, C2A23, C2A24 (bizhub C750i)

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Contents

Trouble typeC2A21: Toner cartridge/C new release failure

C2A22: Toner cartridge/M new release failure

C2A23: Toner cartridge/Y new release failure

C2A24: Toner cartridge/K new release failure
RankC
Trouble detection conditionThe status with the new unit is not cleared after the new toner cartridge is set.
Trouble isolation–
Relevant electrical parts
-Toner cartridge/C,M,Y,K
-Expansion control board (EXCB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Clean the connection between the toner cartridge and the main body if dirty.
  2. Check the connector between the toner cartridge/C-relay CN82-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A21)
  3. Check the connector between the toner cartridge/M-relay CN81-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A22)
  4. Check the connector between the toner cartridge/Y-relay CN80-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A23)
  5. Check the connector between the toner cartridge/K-relay CN83-relay CN79-EXCB CN5EX for proper connection and correct as necessary. (C2A24)
  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. Reinstall the toner cartridge.
  10. Check the harness for proper connection and correct as necessary.
  11. Replace the corresponding toner cartridge.
    (C Part# ACP8430,M Part# ACP8330, Y Part# ACP8230, K Part# ACP8130)
  12. Replace EXCB. (Part# AA7NH00500)
  13. Replace CPUB. (Part# ACKNH02P03)
  14. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)