Samyung NAVIS800FS Instruction Manual page 36

1.2.6 Mark Erase
'1.2.4 Erased a saved MARK file from a storage tool.
Must be careful to command this delete due to no-recover the file.
 Insert the device that has files to be erased. (☞ Possible to omit when using Internal ROM)
 Press
(
 Select the device, which has files to be erased at [Storage Select].
 After select a file name and then press
and select『[YES] / [NO].
If select [Internal ROM], following two menus are displayed.
 Memory Clear : Clear MARK marked into a Plotter screen.
 File Name
) button and move [1.DATA]  [2.MARK DATA]  [6.ERASE].
: Erase a saved MARK into a file of ROM.
(☞ The file name is marked in saving a file only)
( ) button in order to show [Do you want to erase ?]
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