The Ricoh IM 550F MFP is a 57-PPM A4 monochrome laser MFP with a 10.1" Keyless Smart Operation Panel, 500-sheet Paper Tray, 100-sheet Bypass Tray, 100-sheet SPDF, integrated Duplex, 320GB HDD, 2 GB RAM, and Fax & Scanning capability. PostScript 3 and PDF Direct Print Emulation, Gigabit Ethernet, USB 2.0 connectivity and HDD Encryption are provided standard. Envelope feeding via bypass tray and optional paper feed units. Ships with Starter Toner that yields 10,000 prints (ISO 19752). The standard DOSS included with the mainframe is not ISO 15408 certified.