Use the following procedure to delete all logs stored on the machine.
Deleting all logs from the machine as a batch can be performed only if the log collection server is in use or if the Web Image Monitor setting has been specified to collect job log, access log or eco-friendly log.
Log in as the machine administrator from the control panel.
Press [System Settings].
Press [Administrator Tools].
Press [Next] twice.
Press [Delete All Logs].
Press [Yes].
Press [Exit].
Log out.