Konica Minolta Magicolor 1650EN Reference Manual page 257

Item
Reset button
Save Custom button
Restore Custom button Changes all settings to the Custom values.
Restore Factory button Changes all settings to the Factory values.
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Description
If you made changes to any of the parameter set-
tings but don't wish to apply the changes, selecting
this button restores the last submitted parameter
settings.
Saves the Current values of the parameters as the
Custom settings. Using the Restore Custom but-
ton, you can change the parameter settings back to
the Custom settings after changes are made.
Configuring the Printer (Administrator Mode)