Printing Method: Epson Micro Piezo™ print head Nozzle Configuration: 180 Nozzles Black, 59 Nozzles per Color Minimum Droplet Size: 3 pl, With Variable-Sized Droplet Technology Ink Technology: Dye Ink Printing Resolution: 5.760 x 1.440 DPI All-in-One Functions: Print, Scan, Copy, Fax Scan Optical Resolution (ADF): 1.200 DPI x 2.400 DPI (Horizontal x Vertical) Fax Functions: PC Fax, Auto Redial, Address Book, Delay Send, Broadcast Fax, Polling Reception Duplex: Manual Automatic Document Feed: 30 pages