These products are guaranteed to work with your Lexmark C780dtn printer.
Lexmark C780dtn is a Workgroup colour laser printer. The maximum media size of this printer is 8.5 x 14 inch (Legal) and 8.25 x 11.7 inch (A4). The connectivity technology used in this device is wired. The maximum resolution is up to 1200 x 1200 dpi in colour and black and white. The printer network is direct print USB, USB and Ethernet 10/100 Base TX. The printer is equipped with duplex and the print speed is up to 33 pages per minute in A4 black and white and 29 pages per minute in A4 colour.