Q5. I did not retrieve the information of the optional device mounted although I set the correct IP Address of the optional device and press the device information button on the PS Plug-in printer driver.

A5. If the machine is used as a shared printer on a network server, the PS Plug-in printer driver may not be able to automatically register the optional device. In such a case, perform the setup manually.

Alternatively, the SNMP function may be disabled.

From the [UTILITY] screen, go to [Administrator Setting] - [Network Setting] - [NIC Setting] - [SNMP Setting] and check whether [Enable] is selected.