Code :

Code: U2-11
Description: MFP PWB EEPROM counter check sum error
Causes: MFP PWB EEPROM trouble. EEPROM socket contact trouble. MFP PWB trouble. Strong external noises.
Remedy: Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-22
Description: MFP PWB SRAM memory check sum error
Causes: The identifier which controls the communication management table stored in the SRAM and the FAX soft switch is not detected correctly. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Remedy: Since the data of the communication management table and the FAX soft switch stored in the SRAM are initialized when an error occurs, register the deleted data again individually. Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-23
Description: MFP PWB SRAM memory individual data check sum error
MFP PWB SRAM memory individual data check sum error.
Causes: The check sum value for individual data of the communication table and the sender registration does not match. MFP PWB SRAM trouble. MFP PWB trouble. Strong external noises.
Remedy: Turn OFF/ON the power to initialize the data related to the content of check sum error. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the MFP PWB.

Code: U2-30
Description: MFP PWB and PCU PWB manufacturing No. data inconsistency
Causes: Inconsistency between the manufacturing No. saved in the PCU PWB and that in the MFP PWB. When replacing the PCU PWB or the MFP PWB, the EEPROM which was mounted on the PWB before replacement is not mounted on the new PWB. MFP PWB trouble. PCU PWB trouble
Remedy: Check that the EEPROM is properly set. Check to confirm that the EEPROM which was mounted on the PWB before replacement is mounted on the new PWB. Replace the MFP PWB. Replace the PCU PWB.

Code: U2-50
Description: HDD user authentication data check sum error
Causes: HDD trouble. MFP PWB trouble. Strong external noises.
Remedy: Initialize the data (one-touch, group, program, etc.) related to the check sum error by turning OFF/ON the power. Since the registered contents are deleted, register the deleted contents again. Use SIM16 to cancel the error. Replace the HDD. Replace the MFP PWB.

Code: U2-80
Description: SCU PWB EEPROM read/write error
Causes: SCU PWB EEPROM trouble. SCU PWB trouble. EEPROM socket contact trouble.
Remedy: Replace the SCU PWB EEPROM. Replace the SCU PWB. Check contact of the EEPROM socket. Put down the counter/adjustment values in the simulation to prevent against loss of the counter data and the adjustment values. Use SIM16 to cancel the trouble.

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