d-Color MF4003/MF3303
L TROUBLESHOOTING > 15. TROUBLESHOOTING OF i-Option
L-122
15. TROUBLESHOOTING OF i-Option
15.1Structure of license management
• The functions available with i-Option can be activated by entering “License code” to the main body.
• License code is issued and controlled by License Management System (LMS).
To prevent unauthorized use of the license code, each main body is identified individually so that the license code cannot be activated
unless it matches with the authorized the main body.
15.2License management information
• Since license code needs to identify each main body, it is issued using the serial number of main body and “unique value” that is generated
inside the main body.
• The “unique value” is stored to the memory region on the CPU board and at the same time some parts of it are memorized by storage
board. The activated function cannot be used unless the both figures conform.
Since these figures are out of target of [Memory Data Backup], when any trouble occurs at either nonvolatile memory, “License
Management Error” is generated due to discordance of the figures.
15.3Error message
15.3.1License management error
• When abnormal value is detected in the license management information that is stored to the CPU board or storage board, or some values
are detected cleared, warning is issued to let the user know the abnormality.
• The abnormality is detected at the timing of start-up or restart due to any condition.
• When the abnormality is detected, the corresponding i-Option function cannot be used, other ordinal functions, however, such as copy,
scanning, print or etc, can be used without interruption. (Error message is displayed on the Service Mode screen.)
(1)Example of error message
(2)Main reasons of trouble
• The following shows the possible trouble factors and their countermeasure.
Board replacement Action
When CPU board and storage board are replaced with the new ones
at the same time.
Install firmware, follow the setup procedure.
When mounting the CPU board of the machine whose function(s)
have already been activated and a new storage board.
Install firmware, then restore the data using restore procedure.
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