Lexmark J110 Reference Manual page 161

LRENAMEFILE Command
Use this command to rename a file on a storage device. The command is ignored if
the filename specified as OLDFILENAME doesn't exist on the device, or if the
filename specified as NEWFILENAME already exists on the device.
Syntax:
LDELETEFILE Command
Use this command to delete a file on a storage device. The command is ignored if the
file doesn't exist on the device.
Syntax:
LFORMAT Command
Use this command to format a device for storage.
Syntax:
LDEFRAG Command
Use this command to recover storage space on a flash device.
Syntax:
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