Exterior: Rear view
![Main unit illustration numbered callout illustration](../../manual/image/eag363.gif)
Rear cover
Open to access the inside of the printer.
Open here to replace the fusing unit.
Power connector
Connect the power cord to the printer. Insert the other end into an electrical outlet.
SD card slot
Insert the SD card into this slot.
Optional interface board slot
Optional interface boards can be inserted. Remove the cover to use this slot.
Insert an optional wireless LAN interface board, IEEE 1284 interface board, USB device server.
Ethernet port
Use a network interface cable to connect the printer to a network.
USB port B
Use a USB cable to connect the printer to a computer or USB device server.
USB port A
Connect external devices such as a card authentication device, etc.