Print, Scan, Copy, Fax Print Resolution 600 x 2400 dpi 23 ppm Wi-Fi. Ethernet, AirPrint, Cloud Print Print/Scan with USB Drive, Mobile Device Automatic Duplex Printing Input Capacity 251 Sheets Scan Resolution 1200 x 2400 dpi Monthly Duty Cycle 30,000 Pages Internal Memory 192 MB Based on Brother cost per copy (MSRP) calculation vs. nationwide copy centers as of October 2012. See www.brother.com for details. TN225 (CMY) vs. TN221 (CMY). Up to 7.5% claim based on cost per copy using cartridge MSRP. TN225 cartridge is sold separately. From document glass. PDF (up to version 1.7), JPEG, XPS, and Secure PDF files via your USB flash memory drive (sold separately). Requires internet connection and an account with desired service. See www.brother.com for more details. Requires connection to a wireless network. See www.brother.com for more details, availability and mobile device compatibility.