Enhancing the security by simple operation

[Quick Security Setting] summarizes settings to enhance the security level of this machine. We recommend that you change settings in order to use this machine more securely.

Select [Security] - [Quick Security Setting] in administrator mode of Web Connection (or in [Utility] - [Administrator] of this machine), and configure the following settings.

Setting

Description

[Quick IP Filtering]

Allows you to restrict the devices that can access this machine using the IP address (IPv4/IPv6). The range of IP addresses for which access is to be restricted is specified automatically.

Select the method to specify the IP address for which access is restricted (default: [Synchronize IP Address]).

  • [Synchronize IP Address]: For the IPv4 address, this option only permits access for the IPv4 address set to this machine, and the IPv4 addresses of which the high-order 3 bytes are the same.
    Example: When the IPv4 address of this machine is set to "192.168.0.134", the range of IPv4 addresses that allow access is as follows.
    192.168.0.0 to 192.168.0.255
    For the IPv6 address, this option only permits access for the global unicast address (2000::/3). Also, this option only permits access for the IPv6 address set to this machine, and the IPv6 addresses of which the high-order 64 bits are the same.
    Example: When the IPv6 address of this machine is set to "2345:1:2:3:4:5:6:7", the range of IPv6 addresses that allow access is as follows.
    2345:1:2:3::0 to 2345:1:2:3:FFFF:FFFF:FFFF:FFFF

  • [Synchronize Subnet Mask]: For the IPv4 address, this option only permits access for IPv4 addresses that belong to the same network using the IPv4 address set to this machine and subnet mask.
    If no subnet mask is set or "0.0.0.0" is specified, this option permits the IPv4 address set to this machine, and the IPv4 addresses each of which only the suffix is different. This results in the same operation as for [Synchronize IP Address].
    Example: When the IPv4 address of this machine is set to "192.168.17.134" and the subnet mask is set to "255.255.252.0", the range of IPv4 addresses that allow access is as follows.
    192.168.16.*** to 192.168.19.***
    For the IPv6 address, this option only permits access for the global unicast address (2000::/3). Also, filtering is carried out using the global IPv6 address set to this machine and prefix.
    If the prefix is not specified, filtering is carried out in the same way as when the 64-bit prefix is specified.
    Example: When the IPv6 address of this machine is set to "2345:1:2:3:4:5:6:7" and Prefix is set to "/64", the range of IPv6 addresses that allow access is as follows.
    2345:1:2:3::0 to 2345:1:2:3:FFFF:FFFF:FFFF:FFFF

  • [No Filtering]: Does not use the filtering function.

[Security Warning Display Setting]

To display the security warning screen if the administrator password remains set to the default or if password rules are not satisfied, set this option to ON (default: ON).

[USB flash drive function settings]

Specify whether to permit a function that requires the USB Port.

  • [Save Document]: When permitting the user to save a file in a USB flash drive, set this option to ON (default: OFF).

  • [Print Document]: When permitting the user to print a file from a USB flash drive, set this option to ON (default: ON).

  • [Scan documents to USB flash drive]: When permitting the user to save a file read from a USB flash drive in a User Box, set this option to ON (default: OFF).

  • [Print]: When allowing the user to print files from a USB-connected computer, set this option to ON (default: ON).