Canon MF720 Series Service Manual page 71

If any of the following conditions is met, import/export is not executed.
• A job exists. (If calibration is requested by the engine, import/export is executed, ignoring the calibration job.)
• A firmware update is being performed.
• Another import or export is being executed.
CAUTION:
During import, print/fax jobs from the PC are not received and are stuck in the spooler on the PC.Those jobs stuck in the
spooler may not be printed properly after reboot of the host machine. In that case, those jobs have not been received and
are not even recorded in history.
■ Control Characters
If the character string to be exported (e.g. a destination name in the address book) includes an ASCII control character (0x01-0x08,
0xb, 0xc, 0xe-0x19, or 0x7f), the character string excluding the control character is exported.
■ Corrective Processing
When data is imported, corrective processing of setting values (changing a process to another process that can be performed)
may be performed. Corrective processing is performed to process data so that it can be used by the import destination device.
Even when a setting value has been changed by corrective processing, the import process is treated as successful.
Examples are shown below. Please note that the following cases are just examples, and how each item is processed by corrective
processing varies depending on the initial settings and the service mode settings.
• When the length of the character string exceeds the limit
If a character string exceeding the length permitted by the import destination device is registered as, for example, a device
name, only the length of the character string that can be registered on the import destination device is registered. The
excess characters of the character string are deleted.
• When an out-of-range value is imported
Since the value is not comprehensible to the import destination device, the out-of-range value is not imported.In that case,
the default value is not set but the originally registered value remains effective.
• When a necessary license or software option does not exist
In that case, the specification differs depending on the setting value.
Depending on the type of the license or software option, import is executed without the license or software option in some
cases. Therefore the following behaviors may occur.
Assumption
There is "Setting 1" (default value: 0) which is required only when "License 1" has been activated.
Device A: "License 1" activated, "Setting 1" set to "1"
Device B: "License 1" not activated, "Setting 1" set to "0"
Device C: "License 1" activated, "Setting 1" set to "2"
Operation
Export the settings of Device A and import them to Device B.
Export the settings of Device B and import them to Device C.
Result
"Setting 1" of Device C is set to "1".
The foregoing behavior may occur because the setting value related to the license is not always the default value in
Device B where the license has not been activated.
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2. Technical Explanation