Exclusive HP+ model works only with original HP cartridges, internet connection, and HP account..Media sizes supported : Letter, envelopes (No. 10); custom, Legal., | Media types : Plain paper, envelope, postcard, label., | Supported network protocols : TCP/IP: IPv4; IPv6; IP Direct Mode; LPD; SLP; Bonjour; WS-Discovery; BOOTP/DHCP/AutoIP; SNMP v 1/2/3;HTTP/HTTPS; WS Transfer; FQDN; DNS Replacement cartridges : HP 141A Black LaserJet Toner Cartridge (~950 pages), W1410A; HP 141/142 Jumbo Black Welcome and Replenishment Kit (~1,250 pages), W8006J