Sharp AR155N Error Codes List page 4 from 4

  • Code: U2-40
  • Description: CRUM chip communication error
    An error occurs in MCU-CRUM chip communication.
  • Causes: CRUM chip trouble Defective contact of developing unit MCU PWB trouble
  • Remedy: Replace the CRUM chip. Check installation of the developing unit. Cancel the operation with TC16. Replace the MCU PWB.
  • Code: U9-99
  • Description: Operation panel language error
    There is no language file. The language file is destroyed.
  • Causes: Language file abnormality MCU PWB abnormality
  • Remedy: MCU firmware download Replace the MCU PWB.