Enhancing the security of this machine by simple operation

[Quick Security Setting] summarizes settings to enhance the security level of this machine.

If the quick IP filtering function is employed, the range of the IP addresses accessible to this machine is set automatically, enabling you to quickly specify access restrictions.

Furthermore, if the administrator password remains set to the default or password rules are not satisfied, the security warning screen is displayed on the Control Panel, prompting you to change to the administrator password that satisfies password rules.

The use of the USB Port can be restricted for each function, thereby enabling risks such as information leakage via USB memory to be reduced.

In the administrator mode, select [Security] - [Quick Security Setting], then configure the following settings.

Settings

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.

  • [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.

[No Filtering] is specified by default.

[Security Warning Display Setting]

Select whether to display the security warning screen if the administrator password remains set to the default or if password rules are not satisfied.

[OFF] is specified by default.

[USB Enable Settings]

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

  • [Save Document]: Select whether to enable to save files on USB memory. This function is available when [Individual Settings] is selected in [Security] - [USB Connection Permission setting] - [External Memory (User)] in the administrator mode. [Restrict] is specified by default.

  • [Print Document]: Select whether to enable to print files from USB memory. This function is available when [Individual Settings] is selected in [Security] - [USB Connection Permission setting] - [External Memory (User)] in the administrator mode. [Allow] is specified by default.

  • [External Memory Document Scan]: Select whether to enable to save files scanned from USB memory into a User Box. This function is available when [Individual Settings] is selected in [Security] - [USB Connection Permission setting] - [External Memory (User)] in the administrator mode. [Restrict] is specified by default.

  • [Print]: Select whether to enable to print files from a USB-connected computer. This function is available when [Individual Settings] is selected in [Security] - [USB Connection Permission setting] - [PC Connect] in the administrator mode. [Allow] is specified by default.

Tips

  • If the quick IP filtering function is used, the range of IP addresses for which access is to be restricted is specified automatically. To manually specify the range of IP addresses for which access is to be restricted, set [Network] - [TCP/IP Setting]-[IPv4 Filtering] or [IPv6 Filtering] instead of using [Quick IP Filtering].