The Device Is Not Detected

When you discover devices by the [Select Printer] screen > [Auto Search (Wi-Fi)]/[Nearby Printers], detected devices are listed as they are discovered. The device searching process normally takes about 10 seconds.
If you enter an IP address of an invalid DNS server in the Wi-Fi settings of the mobile terminal, a timeout occurs during the host name acquisition process, therefore the device searching process may take some time.
If the device is not detected after the search process has finished, it may be detected if you execute the search process again. If the target device is still not detected after you have searched again, check the following:
If the device is not detected even after you have confirmed the following, restart the mobile terminal. The device may be detected.
If the device is still not detected, consult your network administrator about the network environment.
Supported Devices
Does the device you are using support Canon PRINT Business?
Check the list of supported devices on the Canon PRINT Business support page.
Network Environment (if the name of the device is determined by a DNS server)
Is the IP address of the device correctly registered in the DNS server name resolution table (normal/reverse resolution)?
Even if you change the content of the name resolution table, it may take some time for the change to be reflected in the mobile terminal. If this happens, restart the terminal or disconnect from then reconnect to the Wi-Fi network.
Searching Method
Can you discover the device from [Select Printer] > [Manual Search (Wi-Fi)]?
Depending on the network environment to which the mobile terminal is connected, the device might not be discovered by [Select Printer] > [Auto Search (Wi-Fi)]. If this happens, you need to do a manual search.
Can you discover the device when searching for devices manually by entering the FQDN (format including host name, subdomain name, and domain name)?
<FQDN Entry Sample>
If the host name is "device01", the subdomain name is "aaa", and the domain name is "":
Network Settings of the Mobile Terminal
Is Wi-Fi enabled on your mobile terminal?
Is an HTTP proxy set on your mobile terminal?
If you are using an HTTP proxy, set the proxy in [App Settings] > [Proxy Settings] in this app.
If you are not using an HTTP proxy, change the Wi-Fi settings of the mobile terminal to settings that do not use a proxy, or specify the IP address or DNS name (FQDN) for the device as a host that does not use a proxy. For details, consult your network administrator.
Is Bluetooth enabled?
If you are using Bluetooth to search for devices, enable Bluetooth in the mobile terminal.
Also, be conscious of the following.
Are you holding the terminal horizontally?
Is the Bluetooth sensor not hidden?*
* The location of the Bluetooth sensor varies from terminal to terminal. You may be able to connect if you change the way you are holding the terminal.
If you cannot connect by Bluetooth when the above problems do not exist, you may be able to connect by reconnecting at the front of the device.
If you have executed [Initialize All Data/Settings] in [Management Settings] > [Data Management] at the device, from the list of devices connected by Bluetooth in the settings of the mobile terminal, delete the device that has been initialized and register (pair) the device again in this app.
Network Settings for this App
Does the SNMP community name set in [App Settings] > [SNMP Community Name] match the setting at the device?
Network Settings of the Device
Is the SNMPv1 setting set to [On]?
Is the gateway address set correctly?
Is the subnet mask set correctly?