Lexmark PRO4000C, 90P3000 manual Selecting a location for the printer, About your printer

About your printer		12
	Use the	To
15 Duplex unit		• Print on both sides of a sheet of paper.

•Access paper jams.

16	USB port	Connect the printer to a computer using a USB cable.
		Warning—Potential Damage: Do not touch the USB port except when plugging in or
		removing a USB cable or installation cable.
		Note: Remove the sticker to access the port.
17	Ethernet port	Connect your printer to a computer, a local network, an external DSL, or a cable modem.
18	LINE port	Connect the printer to an active telephone line through a standard wall jack (RJ‑11), DSL
		filter, or VoIP adapter, or any other adapter that allows you to access the phone line to send
		and receive faxes.

19 EXT port	Connect additional devices (telephone or answering machine) to the printer and the
	telephone line. Use this port if you do not have a dedicated fax line for the printer and if
	this connection method is supported in your country or region.
	Note: Remove the plug to access the port.

Selecting a location for the printer

When selecting a location for the printer, leave enough room to open trays (including optional trays), covers, and doors, depending on the features of your printer. It is important to:

•Provide a flat, sturdy, and stable surface.

•Keep the printer:

–Away from the direct airflow of air conditioners, heaters, or ventilators

–Free from direct sunlight, humidity extremes, or temperature fluctuations

–Clean, dry, and free of dust